For load switches
New
NMOS Drivers
For PCs and Digital Consumer Electronics
Power Management Switch IC
Series
Ver.3.0
SELECTION CATALOG
General
Purpose
ICs
General Purpose ICs
www.rohm.com
ROHM
Power Management Switch IC Series
ROHM – your source for all your power management needs
High speed, high throughput data transmission via USB interface has become a reality, significantly increasing
applicability. However, with increasing speed and functionality comes a price – greater power consumption, making
power switching a necessity. ROHM power switches are not only reliable and easy to use, they feature stable
operation and an energy efficient design.
1
feature
Power
management
made easy
2
feature
Multiple
protection
circuits
3
feature
Extensive lineup
SOFT
START
Power management functions integrated on a single chip
All necessary power management functions are integrated on a single
chip. Switches can be turned ON or OFF easily by simply inputting a
control signal.
Increased protection
Protection circuits guarding against overcurrent, output shorts,
undervoltage, and thermal stress are built in, preventing damage due to
external conditions.
Power
SW
UVLO
TSD
Man Power
Swit agemen
ch IC t
Overcurrent
protection
Output short
protection
Temperature
protection
Under voltage
protection
Broad lineup
Input
logic
ROHM’s extensive lineup allows the customer to choose the ideal solution
based on a number of factors, such as input logic, output current, and
number of channels.
LOW HIGH
ACT ACT
IO limiting
0.5A 1.1A
1.0A 1.65A
Number
of channels
1ch
2ch
Applicable Models : USB high side switch IC series
4
feature
Wide
compatibility
Compatible with a wide range of applications
Printer
DSC
ROHM high side switch ICs are ideal for a broad variety of applications,
including digital cameras and camcorders, A/V equipment, and PC
peripheral devices.
Notebook PC
Mobile phone
DVC
USB
PDA
high side switch IC
Digital TV
Portable
audio player
Applicable Models : USB high side switch IC series
1
DVD player
5
feature
Wide operating
temperature
range
6
feature
Pin-compatible
design
Operating temperature range –40ºC to +85ºC
–40°C
Stable operation between –40°C and +85°C is ensured, resulting in a high
degree of reliability under even the harshest conditions.
Man Power
Swit agemen
ch IC t
Applicable Models : BD2055AFJ, BD2045AFJ, BD2061AFJ, BD2065AFJ,
BD6518FJ, BD6519FJ, BD2051AFJ, BD2041AFJ,
BD2056AFJ, BD2046AFJ, BD2052AFJ, BD2042AFJ,
BD6538G, BD2224G, BD2225G
+85°C
Pin compatibility enables easy replacement
ROHM
USB
High Side
SW
ROHM power management switch ICs are pin-compatible, eliminating the
need to change the board pattern.
Company T
USB
High Side
SW
Pin-compatible
Applicable Models : BD2055AFJ, BD2045AFJ, BD2061AFJ, BD2065AFJ
BD2051AFJ, BD2041AFJ, BD2056AFJ, BD2046AFJ,
BD2052AFJ, BD2042AFJ
7
feature
ExpressCard™compatible
power switch
The world’s
first compliance IDs
EC100001
EC100040
EC100052
EC100163
Guaranteed compliance
The world’s first compliance ID (EC1000001) has been acquired by
ROHM – ensuring compatibility with the ExpressCard™ standard.
ExpressCardTM
power switch
Applicable Models : BD4153FV, BD4153EFV, BD4154FV, BD4155FV, BD4156MUV
feature
Safer design with
reverse current
prevention function
9
feature
Low ON-resistance
switch reduces
voltage loss
10 feature
External notification
terminal with filter
prevents erroneous
detection
Reverse current prevention function for safer design
A parasitic diode is connected between the Source and Drain of the switch
in order to prevent reverse current flow from the output to the input when
the switch is turned OFF.
Input
Applicable Models : BD2055AFJ, BD2045AFJ, BD2061AFJ, BD2065AFJ,
BD6518FJ, BD6519FJ, BD2051AFJ, BD2041AFJ,
BD2056AFJ, BD2046AFJ, BD6516F, BD6517F,
BD2052AFJ, BD2042AFJ, BD6524HFV, BD6528HFV,
BD6529GUL, BD6522F, BD4154FV, BD4155FV, BD4156MUV
Output
OFF
Built-in low ON-resistance power MOSFET switch
Proprietary BiCMOS technology is utilized for low ON-resistance, keeping
voltage drops to a minimum.
Low
ON-resistance
External notification terminal with external filter
A terminal is built in that notifies external controllers of overcurrent
conditions, while an integrated delay filter prevents erroneous detection
due to events such as hot plugging.
Applicable Models : BD2061AFJ, BD2065AFJ, BD6518FJ, BD6519FJ, BD6516F,
BD6517F, BD6538G, BD2224G, BD2225G, BD4153FV,
BD4153EFV
2
Built-in filter’s blind sector
Output Current
8
Output
short-circuit
detection
Flag
output
Time
For PCs and Digital Consumer Electronics
Ver.3.0
Power Management Switch IC Series
Output voltage
Input voltage
For load switches
NMOSFET
NMOSFET Driver IC Debut
GATE 5
(P.17)
Vcc
OSC
Ultra-compact HVSOF5 package (1.6mm×1.6mm×0.6mm)
Built-in 3× charge pump circuit available for use by NMOS switch
High-definition power management function integrated on a single chip
Host side
1
GND
ON/OFFF
2
Charge
Pump
(×3)
4
3
DISC
Control
AEN
BD2270HFV
HVSOF5
Device side
ROHM
power management
sw
switch
witch
IC
C
Temperature
protection
Over
current
protection
UV
LO
Inrush
current
prevention
Reverse current
prevention
Multiple
Mu
M
ulti l protection circuits
uitts
improve reliability
Features of ROHM’s power management switch ICs
(2ch USB High Side Switch IC)
Overcurrent protection
p
circuit
quickly
q
detects
i kly d
t t power supply
l
short-circuits
h t i it
Excessive current flowing due to abnormalities
(i.e. output short) is limited to within a threshold
value, protecting the power supply system.
Low voltage
g malfunction
prevention
p
ti circuit
i
it ensures
stable
operation
t bl battery
b tt
ti
OCP
Charge
pump
Two types of temperature protection circuits are
integrated and can be selected based on the
application: an automatic restore type that turns the
switch back ON once the temperature decreases
below a threshold value, and a latch type that keeps
the switch OFF, even after temperature decreases.
TSD
/OC1
N1
IN
OUT2
UVLO
Charge
pump
Low ON-resistance
minimizes voltage loss
/OC2
A soft start circuit that prevents inrush current
when the switch is turned ON is built into every
IC, ensuring stable, safe system startup.
Built-in delay filter ensures
high reliability flag detection
A delay filter is built in that prevents misdetection
and notifies external circuitry of abnormal conditions
(i.e. overcurrent) via a flag detection terminal.
Output current
capacity
Flag output function
with delay
Inrush current prevention circuit
simplifies power supply design
TSD
Low ON-resistance switching is achieved utilizing
original process and circuit technologies, ensuring
the lowest voltage loss possible.
Explanation of icons
Reverse current prevention
circuit for safe output OFF
Incorporation of an element structure in the switch
block that cancels the parasitic diode between
the input and output prevents reverse current from
flowing from the output to the input when the
switch is turned OFF, protecting the power supply.
ND
The output is turned OFF when the supply voltage
decreases below a predetermined level (i.e. in
battery-powered devices), preventing malfunctions.
Two types
yp of
thermall protection
p t
circuits:
th
Latch
Automatic
Restore
L
t h and
dA
t
ti R
t
Support for
low input voltage
Input logic
type
Ultra-compact, wafer-level
CSP package
3
Pin-compatible with
competitor products
for easy replacement
Output latch-off
operation
Built-in thermal
shut down circuit
Over current protection circuit built in
(Automatic restoration)
L i neup
ROHM power management switch ICs integrate a low ON-resistance MOSFET and multiple protection circuits on a single
chip, resulting in low loss, high efficiency, and safe, more stable system design – all in a compact package. Ideal for power
management in a variety of devices, including USB memory sticks, PC expansion modules. In addition a new controller switch
IC is offered that enables selection of an external NMOS switch to suit user needs.
LINEUP
P.5
Ideal for portable equipment
P.7
Optimized for PCs and PC peripherals
1ch Small Current Output
USB High Side Switch ICs
1ch Large Current Output
USB High Side Switch ICs
Under
Under
development
lopment
opment
P.9
Ideal for portable equipment
2ch Small Current Output
USB High Side Switch ICs
P.11
Optimized for PCs and PC peripherals
P.13
Ideal for memory card power supplies
P.15
Designed for power supply blocks in PCs and digital consumer devices
P.17
Ideally suited for ultra-compact PC systems
P.19
Ideal for ExpressCardTM power supply control
2ch Large Current Output
USB High Side Switch ICs
1ch Small Current Output
Power Management Switch ICs
1ch Large Current Output
Power Management Switch ICs
MOSFET Controller IC for Load Switch
Power Switch ICs
for ExpressCardTM
ON Resistance
Power
package
Compact surface
mount package
Soft start
function
Reverse current
prevention circuit
Standby
current 0µA
Operating temperature
range
4
Over current
protection circuit
Under voltage
lock out function
ESD resistance
Output discharge
circuit
Ideal for portable equipment
1ch Small Current Output
USB High Side Switch ICs
ROHM 1ch small current USB high side switch ICs can be used for ON/OFF switching in USB
5V/0.5A power supply lines. In addition, their pin compatibility makes them ideal replacements for
competitor products.
LINEUP
Package
0.5A Pin-compatible Active High Type
BD2055AFJ
SOP-J8
0.5A Pin-compatible Active Low Type
BD2045AFJ
SOP-J8
Please refer to pgs. 3, 4
Actual size shown.
Power supply management function
USB port power management on a single chip
BD2055AFJ and BD2045AFJ are high side switch ICs that
integrate all of the elements required for USB port power
management, including low ON-resistance switches, switch
control circuits, overcurrent detection, and overcurrent control,
in a single package. In addition, multiple protection circuits are
built in, such as thermal shutdown, low voltage malfunction
prevention, and soft start, ensuring a stable supply of power.
Both Active High and Active Low ICs are available, allowing the
customer to select the ideal solution based on set requirements.
Abnormal
information
output
Compulsory
OFF
CPU
FLAG
Detects
overcurrent
IN
OCP
EN
TSD
OUT
5V/0.5A
Switch
5V
UVLO
Detects
low input voltage
DSC
Detects
excessive heat
Soft start
USB memory
Low loss
switch
Prevents
inrush current
Soft start function
Soft start function prevents inrush current
Output voltage
Conventional
When the power supply is turned ON a large surge of current
suddenly flows into the decoupling capacitor, placing a
considerable load on the power circuitry in the previous stage
as well as possibly damaging the IC itself.
The BD2055AFJ and BD2045AFJ integrate a soft start function
that suppresses inrush current, significantly improving the
safety and stability of the entire set.
ROHM
Time
Output current
With no soft start function the inrush
current is large, making it necessary to
consider the capacity of the power supply
Conventional
ROHM
With the soft start function
the inrush current is small,
improving safety and reliability
Time
Switch ON
5
Reverse current prevention function
Reverse current prevention function
ensures that the output is completely OFF
A parasitic diode exists
Conventional P-MOS FET Switch
In conventional MOSFETs a parasitic diode exists between the
Drain and Source, allowing current to flow from the output to
the input, even when the MOSFET is turned OFF. ROHM’s 1ch
low output current USB high side switch ICs integrate a
structure that cancels the effects of the parasitic diode,
preventing reverse current from flowing when the switch is OFF.
Source
Gate
Drain
P
Parasitic
Diode
P
Source
Reverse
current
Gate
N
Parasitic
diode
N
Current flows even
when the switch is OFF
Drain
ROHM’s unique configuration cancels the parasitic diode
Drain
Reverse
current
Parasitic
Gate
diode
No flow
canceled
ROHM’s N-MOS FET Switch
Source
P
Gate
Drain
N
N
P
Source
The diode is canceled,
preventing reverse current
when the switch is OFF
UVLO circuit
UVLO circuit prevents malfunctions
UVLO
detection
voltage
Input voltage
The UVLO circuit prevents malfunctions by turning the switch
OFF once the input voltage goes below a threshold value,
ensuring operational and system wide stability.
Time
Output voltage
Output OFF
The switch is
turned OFF once excessively
low voltage is detected, preventing
set malfunctions
Time
Thermal shutdown
Low ON-resistance switch
The thermal shutdown circuit turns the
A low ON-resistance switch is integrated
Automatic
restore
switch OFF once the chip temperature
using proprietary Bi-CDMOS technology,
rises above a predetermined value,
ensuring low voltage drop.
preventing damage while improving the
Man Power
Swit agemen
ch IC t
reliability of the set. An automatic restore
circuit is built in that turns the switch ON
Low
ON-resistance
when the temperature decreases to within
normal limits.
Low power consumption
operation
Pin-compatible with competitor
products
Operating
90µA
ROHM’s switch ICs utilize a low power
Man Power
Swit agemen
ch IC t
consumption design featuring a current
consumption of 90µA when ON and 0µA
compatible with competitor products
TPS2055A and TPS2045A, respectively,
when OFF.
making
0µA
direct
replacement
ROHM
USB
High Side
SW
Company T
USB
High Side
SW
possible
Pin-compatible
without changing the board pattern.
Stand-by
General
Information
1
Compatible with USB 2.0?
USB 1.0 and 1.1 are often referred to as Low Speed (1.5Mbps) and Full Speed (12Mbps), respectively. USB 2.0, which specifies a transmission speed of
480Mbps, features the same power requirements as the older standards, including output voltage and current, making it compatible with current power supply
and protection circuitry.
Specifications
Thermal
shutdown
Overcurrent
flag output delay
(ms)
Package
Yes
Restore
None
SOP-J8
Yes
Restore
None
SOP-J8
Output
Overcurrent
Pin
detection value startup time
10%→90%(ms) compatibility
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD2055AFJ
2.7 to 5.5
90
80
H Active
H>2.0V/L<0.8V
0.5
1.2
BD2045AFJ
2.7 to 5.5
90
80
L Active
H>2.0V/L<0.8V
0.5
1.2
Part No.
6
Optimized for PCs and PC peripherals
1ch Large Current Output
USB High Side Switch ICs
ROHM’s 1ch large current USB high side switch ICs were designed for ON/OFF control of the USB line. A broad lineup is
offered, including the original BD6518FJ and BD6519FJ, along with the BD2051AFJ and BD2041AFJ that are pin-compatible
with many of the most popular products on the market.
LINEUP
Package
1.5A Pin-compatible Active Low Type
SOP-J8
SOP-J8
Under
Under
development
lopment
opment
SOP-J8
SOP-J8
SOP-J8
SOP-J8
Please refer to pgs. 3, 4
Actual size shown.
Power supply management function
USB port power management on a single chip
For BD6518FJ and BD6519FJ
BD6518FJ, BD6519FJ, BD2051AFJ, BD2041AFJ, BD2061AFJ,
and BD2065AFJ are high side switch ICs that integrate all of
the elements required for USB port power management,
including low ON-resistance switches, switch control circuits,
overcurrent detection, and overcurrent control, in a single
package. In addition, multiple protection circuits are built in,
such as thermal shutdown, under voltage lock out, and soft
start, ensuring a stable supply of power. Both Active High and
Active Low ICs are available, allowing the customer to select
the ideal solution based on set requirements.
Abnormal
information
output
Compulsory
OFF
CPU
EN
FLAG
MENU
Detects
excessive heat
Detects
overcurrent
OCP
IN
TSD
OUT
5V/1.1A
Switch
5V
UVLO
Detects
low input voltage
Soft start
Digital Audio
Player
Low loss
switch
USB memory
Prevents
inrush current
Hot plug misdetection prevention due to built-in filter
Built-in flag output delay filter prevents
false detection of hot plugging∗
Output current
An inrush current flows through the load capacitor whenever a
device is connected to the USB port. This current is
instantaneous but large enough to cause an overcurrent
detection error. Both the BD6518FJ, BD6519FJ BD2061AFJ,
and BD2065AFJ feature an overcurrent detection flag output
with built-in delay filter (2.5ms) that outputs a flag (warning) to
the CPU if overcurrent conditions persist after the delay time
has elapsed, preventing misdetection caused by inrush current.
Hot plugging
Inrush current
Flag output
Time
ROHM
Conventional
Misdetection prevented
due to built-in filter
No filter – microcontroller
notified of overcurrent
condition
Time
∗ Hot plugging : Inserting a device to the USB port while powered up.
This causes an inrush current to flow.
Applicable Models : BD6518FJ, BD6519FJ, BD2061AFJ, BD2065AFJ
7
Pin compatibility
Pin-compatible with TPS2051A and TP2041A
for easy replacement
ROHM’s BD2051AFJ, BD2041AFJ, BD2061AFJ, and
BD2065AFJ are pin-compatible with the competitor’s
TPS2051A, TPS2041A, TSP2061, and TSP2065 high side
switch ICs, respectively. The main electrical characteristics are
equivalent, and the package is JEDEC-compliant, enabling
replacement without changing the board pattern.
replacing, please verify proper operation under
( Note : When
)
actual conditions
Company T High Side Switch ICs
ROHM High Side Switch ICs
TPS2051A /TPS2041A
BD2051AFJ /BD2041AFJ
GND
1
8
OUT
GND
1
8
OUT
IN
2
7
OUT
IN
2
7
OUT
IN
3
6
OUT
IN
3
6
OUT
/EN
4
5
/OC
/EN
4
5
/OC
Pin
compatible
JEDEC SOP-J8 package ensures safe replacement
Equivalent
electrical
4.9
characteristics
6.0
3.9
Easy to replace
with no pattern
changes
[Unit : mm]
1.375
Applicable Models : BD2051AFJ, BD2041AFJ, BD2061AFJ, BD2065AFJ
Soft start function
UVLO circuit
(Under Voltage Lock Out)
Conventional
In the BD6518FJ, BD6519FJ, BD2051AFJ,
A UVLO circuit is built in that prevents
the switch is gradually turned ON,
malfunctions when the input voltage
mitigating inrush current.
decreases.
Output Current
BD2041AFJ, BD2061AFJ, and BD2065AFJ
Soft start
In
the
BD6518FJ
Input
Output
and
BD6519FJ the switch is turned OFF when
UVLO
the input voltage goes below 2.3V, and is
Output OFF: Vcc=Below 2.3V
Automatic restoration: Vcc=Over 2.5V
kept OFF until the voltage rises above 2.5V.
Time
Thermal shutdown
Low ON-resistance switch
The thermal shutdown circuit turns the
A low ON-resistance switch is integrated
Automatic
restore
switch OFF once the chip temperature
using proprietary Bi-CDMOS technology,
rises above a predetermined value,
ensuring low voltage drop.
preventing damage while improving the
Man Power
Swit agemen
ch IC t
reliability of the set. An automatic restore
circuit is built in that turns the switch ON
Low
ON-resistance
when the temperature decreases to within
normal limits.
Low power
consumption operation
Reverse current
prevention function
Operating
90µA
ROHM’s switch ICs utilize a low power
A configuration that cancels the parasitic
Man Power
Swit agemen
ch IC t
consumption design featuring a current
consumption of 90µA when ON and 0µA
diode between the Source and Drain
prevents reverse current from flowing
when OFF.
Input
Output
when the switch is turned OFF.
0µA
OFF
Standby
Specifications
Under
development
Pin
compatibility
Thermal
shut down
Overcurrent
flag output delay
(ms)
Package
1.2
Yes
Restore
2.5
SOP-J8
1.5
1.2
Yes
Restore
2.5
SOP-J8
H Active
H>2.5V/L<0.7V
1.1
1.0
None
Restore
2.5
SOP-J8
90
L Active
H>2.5V/L<0.7V
1.1
1.0
None
Restore
2.5
SOP-J8
90
80
H Active
H>2.0V/L<0.8V
1.0
1.2
Yes
Restore
None
SOP-J8
90
80
L Active
H>2.0V/L<0.8V
1.0
1.2
Yes
Restore
None
SOP-J8
Output
Overcurrent
detection value startup time
10%→90%(ms)
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD2061AFJ
2.7 to 5.5
90
80
L Active
H>2.0V/L<0.8V
1.5
BD2065AFJ
2.7 to 5.5
90
80
H Active
H>2.0V/L<0.8V
BD6518FJ
3.0 to 5.5
90
90
BD6519FJ
3.0 to 5.6
90
BD2051AFJ
2.7 to 5.5
BD2041AFJ
2.7 to 5.5
Part No.
8
Ideal for portable equipment
2ch Small Current Output
USB High Side Switch ICs
ROHM 2ch small current USB high side switch ICs turn the power on the USB line ON and OFF
(5V/0.5A) and are pin-compatible with some of the most popular products on the market.
LINEUP
Package
0.5A Pin-compatible Active High Type
BD2056AFJ
SOP-J8
0.5A Pin-compatible Active Low Type
BD2046AFJ
SOP-J8
Please refer to pgs. 3, 4
Actual size shown.
Power supply management function
2ch USB port power management
on a single chip
Compulsory
OFF
Abnormal
information
output
BD2056AFJ and BD2046AFJ are high side switch ICs that
integrate all of the elements required for USB port power
management, including low ON-resistance switches, switch
control circuits, overcurrent detection, and overcurrent control,
in a single package. Two built-in switches, switch control
terminals, and flag output terminals make power management
of 2 ports possible. In addition, multiple protection circuits are
built in, such as thermal shutdown, under voltage lock out, and
soft start, ensuring a stable supply of power. Both Active High
and Active Low ICs are available, allowing the customer to
select the ideal solution based on set requirements.
Detects
excessive heat
CPU
FLAG2
EN1
FLAG1
Detects
overcurrent
EN2
TSD
OCP
Switch 1
IN
5V/0.5A
DSC
OUT1
TSD
OCP
5V
UVLO
Soft start
Switch 2
5V/0.5A
OUT2
USB memory
Soft start
Low loss
switch
Detects
low input voltage
Prevents
inrush current
Soft start function
Soft start function prevents inrush current
Output voltage
Conventional
When the power supply is turned ON a large surge of current
suddenly flows into the decoupling capacitor, placing a
considerable load on the power circuitry in the previous stage
as well as possibly damaging the IC itself.
The BD2056AFJ and BD2046AFJ integrate a soft start function
that suppresses inrush current, significantly improving the
safety and stability of the entire set.
ROHM
Time
Output current
With no soft start function the inrush
current is large, making it necessary to
consider the capacity of the power supply
Conventional
ROHM
With the soft start function
the inrush current is small,
improving safety and reliability
Time
Switch ON
9
Reverse current prevention function
Reverse current prevention function
ensures that the output is completely OFF
A parasitic diode exists
Conventional P-MOS FET Switch
In conventional MOSFETs a parasitic diode exists between the
Drain and Source, allowing current to flow from the output to
the input, even when the MOSFET is turned OFF. ROHM’s 2ch
small current output USB high side switch ICs integrates a
structure that cancels the effects of the parasitic diode,
preventing reverse current from flowing when the switch is
turned OFF.
Source
Gate
Drain
P
Parasitic
Diode
P
Reverse
current
Source
Gate
N
N
Parasitic
diode
Current flows even
when the switch is OFF
Drain
ROHM’s unique configuration cancels the parasitic diode
ROHM’s N-MOS FET Switch
Source
P
Gate
Drain
Drain
N
Gate
N
P
Reverse
current
Parasitic
diode
canceled
No flow
The diode is canceled,
preventing reverse current
when the switch is OFF
Source
UVLO circuit
UVLO circuit prevents malfunctions
UVLO
detection
voltage
Input voltage
The UVLO circuit prevents malfunctions by turning the switch
OFF once the input voltage goes below a threshold value,
ensuring operational and system wide stability.
Time
Output voltage
Output OFF
The switch is
turned OFF once excessively
low voltage is detected, preventing
set malfunctions
Time
Thermal shutdown
Low ON-resistance switch
The thermal shutdown circuit turns the
A low ON-resistance switch is integrated
Automatic
restore
switch OFF once the chip temperature
using proprietary Bi-CDMOS technology,
rises above a predetermined value,
ensuring low voltage drop.
preventing damage while improving the
Man Power
Swit agemen
ch IC t
reliability of the set. An automatic restore
circuit is built in that turns the switch ON
Low
ON-resistance
when the temperature decreases to within
normal limits.
Low power consumption
operation
Pin-compatible with
competitor products
Operating
110µA
ROHM’s switch ICs utilize a low power
The BD2056AFJ and BD2046AFJ are pin-
Man Power
Swit agemen
ch IC t
consumption design featuring a current
consumption of 110µA when ON and 0µA
compatible with competitor products
TPS2056A and TPS2046A, respectively,
when OFF.
making
0µA
direct
replacement
ROHM
USB
High Side
SW
Company T
USB
High Side
SW
possible
Pin-compatible
without changing the board pattern.
Standby
General
Information
2
When is there reverse current?
In a USB system, a 150µF capacitor is connected to the power supply output of the connector. If a
parasitic diode exists at the High side switch, when the power supply is turned OFF the output voltage
Backflow
VIN
becomes greater than the input voltage due to the capacitor, causing a current to flow to the input terminal
through the parasitic diode.
VBUS
COUT
CIN
ROHM’s High side switch, however, utilizes a configuration that cancels the effects of the parasitic diode,
ON/OFF
preventing reverse current from flowing, enabling the system to turn OFF completely.
Specifications
Output
Overcurrent
Pin
detection value startup time
10%Æ 90%(ms) compatibility
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD2056AFJ
2.7 to 5.5
110
100
H Active
H>2.0V/L<0.8V
0.5
1.8
BD2046AFJ
2.7 to 5.5
110
100
L Active
H>2.0V/L<0.8V
0.5
1.8
Part No.
10
Thermal
shut down
Overcurrent
flag output delay
(ms)
Package
Yes
Restore
None
SOP-J8
Yes
Restore
None
SOP-J8
Optimized for PCs and PC peripherals
2ch Large Current Output
USB High Side Switch ICs
ROHM offers a broad lineup of 2ch large current USB High side switch ICs designed for ON/OFF control of
the USB line, including the original BD6512F, BD6513F, BD6516F, and BD6517F, as well as the
BD2052AFJ and Bd2042AFJ that are pin-compatible with some of the most popular products on the market.
LINEUP
Package
1.65A Active High Type
SOP8
SOP8
SOP8
SOP8
SOP-J8
SOP-J8
Please refer to pgs. 3, 4
Actual size shown.
Power supply management function
2ch USB port power management
on a single chip
BD6512F, BD6513F, BD6516F, BD6517F, BD2052AFJ and
BD2042AFJ are high side switch ICs that integrate all of the
elements required for USB port power management, including
low ON-resistance switches, switch control circuits, overcurrent
detection, and overcurrent control, in a single package. Two
built-in switches, switch control terminals, and flag output
terminals make power management of 2 ports possible. In
addition, multiple protection circuits are built in, such as
thermal shutdown, under voltage lock out, and soft start,
ensuring a stable supply of power. Both Active High and Active
Low ICs are available, allowing the customer to select the ideal
solution based on set requirements.
For BD6512F, BD6513F, BD6516F and BD6517F
Abnormal
information
output
PC
Compulsory
OFF
Detects
excessive heat
CPU
FLAG2
Detects
overcurrent
EN1
FLAG1
OCP
EN2
TSD
HDD drive
Switch 1
IN
OUT1
OCP
5V
UVLO
5V/1.65A
TSD
DVD drive
Soft Start
Switch 2
5V/1.65A
OUT2
Scanner
Soft Start
Detects
low input voltage
11
Low loss
switch
Prevents
inrush current
Printer
Pin compatibility
Pin-compatible with TPS2052A and TP2042A
for easy replacement
ROHM’s BD2052AFJ and BD2042AFJ are pin-compatible with
the competitor’s TPS2052A and TPS2042A high side switch
ICs, respectively. The main electrical characteristics are
equivalent, and the package is JEDEC-compliant, enabling
replacement without changing the board pattern.
(
Note : When replacing, please verify proper operation under
actual conditions
Company T High Side Switch ICs
ROHM high side switch ICs
TPS2052A /TPS2042A
BD2052AFJ/BD2042AFJ
GND
1
8
/OC1
IN
2
7
OUT1
/EN1
3
6
/EN2
4
5
)
GND
1
8
/OC1
IN
2
7
OUT1
OUT2
/EN1
3
6
OUT2
/OC2
/EN2
4
5
/OC2
Pin
compatible
Easy to replace with no pattern changes
Applicable Models : BD2052AFJ, BD2042AFJ
Automatic restore and latch OFF TSD circuits
Return
point
Two types of thermal protection circuits :
Latch and Automatic Restore
Two
types
TSD Detection
Junction temperature
Two types of temperature protection circuits are integrated and
can be selected based on the application: an automatic restore
type that turns the switch back ON once the temperature
decreases below a threshold value, and a latch type that keeps
the switch OFF, even after temperature decreases.
Restored
Automatic restore type
Time
Switch output
Overcurrent
threshold value
Usual
output current
Automatically
restores
operation, even if the switch
is turned ON and OFF
repeatedly, eliminating the
need for system control
Latch OFF type
Time
Keeps the output OFF, even
after the temperature returns
to normal. Requires system
control to turn the output
back ON.
Hot plug misdetection prevention due to built-in filter
Built-in flag output delay filter prevents false
detection of hot plugging∗
Output current
An inrush current flows through the load capacitor whenever a
device is connected to the USB port. This current is
instantaneous but large enough to cause an overcurrent
detection error. Both the BD6516F and BD6517F feature an
overcurrent detection flag output with built-in delay filter (1ms)
that outputs a flag (warning) to the CPU if overcurrent
conditions persist after the delay time has elapsed, preventing
misdetection caused by inrush current.
Hot plugging
Inrush current
Flag output
Time
Misdetection prevented
due to built-in filter
ROHM
Conventional
No filter – microcontroller
notified of overcurrent
condition
Time
∗ Hot plugging : Inserting a device to the USB port while powered up.
This causes an inrush current to flow.
Applicable Models : BD6516F, BD6517F
Soft start function
Reverse current
prevention function
Conventional
In the BD6512F, BD6513F, BD6516F,
A configuration that cancels the parasitic
the switch is gradually turned ON,
diode between the Source and Drain
mitigating inrush current.
prevents reverse current from flowing
Output Current
BD6517F, BD2052AFJ, and BD2042AFJ
Input
Output
when the switch is turned OFF.
Soft start
OFF
Time
Applicable Models : BD6516F, BD6517F, BD2052AFJ, BD2042AFJ
Specifications
Output
Overcurrent
detection value startup time
10%→90%(ms)
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control
input logic
BD6512F
3.0 to 5.5
85
100
H Active
H>2.5V/L<0.7V
1.65
BD6513F
3.0 to 5.5
85
100
L Active
H>2.5V/L<0.7V
BD6516F
3.0 to 5.5
100
110
BD6517F
3.0 to 5.5
100
BD2052AFJ
2.7 to 5.5
BD2042AFJ
2.7 to 5.5
Part No.
Pin
compatibility
Thermal
shut down
Overcurrent
flag output delay
(ms)
1.5
None
Latch
None
SOP8
1.65
1.5
None
Latch
None
SOP8
H Active
H>2.5V/L<0.7V
1.65
1.5
None
Restore
1.0
SOP8
110
L Active
H>2.5V/L<0.7V
1.65
1.5
None
Restore
1.0
SOP8
110
100
H Active
H>2.0V/L<0.8V
1.00
1.8
Yes
Restore
None
SOP-J8
110
100
L Active
H>2.0V/L<0.8V
1.00
1.8
Yes
Restore
None
SOP-J8
12
Package
Ideal for memory card power supplies
1ch Small Current Output
Power Management Switch ICs
ROHM’s 1ch small current output power management switch ICs integrate multiple functions and a
low ON-resistance NMOS switch into an ultra-compact power package. These ICs are ideally suited
for ON/OFF control of power supply lines in compact devices (i.e. memory card slots).
LINEUP
Package
Compact 0.5A Power Switch IC
Front
Back
HVSOF6
Front
Back
HVSOF6
Front
Back
VCSP50L1
SSOP5
SSOP5
SSOP5
SSOP5
BD2225G
SSOP5
Please refer to pgs. 3, 4
Power supply management functions
Compact power management switch
with power supply management function
ROHM 1ch small current output power management switch ICs
feature a low ON-resistance NMOS switch and drive circuit,
enabling ON/OFF switching of the power supply line using a
single control signal. In addition, multiple protection circuits are
built in, including overcurrent, thermal shutdown, low voltage
malfunction prevention, and soft start, ensuring a stable supply
of power.
Actual size shown.
Low-loss switch
NMOS switch
IN
OUT
Device
or
Circuit block
DC-DC
converter
Detecting low
input voltage
UVLO
Preventing
inrush current
Applicable Models : BD2202G, BD2206G, BD6538G, BD2224G, BD2225G
13
Charge
Pump
OCP
Logic
TSD
Soft
Start
Detecting
overcurrent state
Detecting abnormal rise
in chip temperature
Soft start function
Soft start function prevents inrush current
Output voltage
Conventional
When the power supply is turned ON a large surge of current
suddenly flows into the decoupling capacitor, placing a
considerable load on the power circuitry in the previous stage
as well as possibly damaging the IC itself.
ROHM’s 1ch small current output High side switch ICs
integrate a soft start function that suppresses inrush current,
significantly improving the safety and stability of the entire set.
ROHM
Time
Output current
With no soft start function the inrush
current is large, making it necessary to
consider the capacity of the power supply
Conventional With the soft start function
the inrush current is small,
ROHM
improving safety and reliability
Switch ON
Time
Hot plug misdetection prevention due to built-in filter
Output current
Built-in flag output delay filter prevents false
detection of hot plugging∗
An inrush current flows through the load capacitor whenever a
device is connected to the USB port. This current is
instantaneous but large enough to cause an overcurrent
detection error. Both the BD6538G, BD2224G and BD2225G
feature an overcurrent detection flag output with built-in delay
filter (15ms) that outputs a flag (warning) to the CPU if
overcurrent conditions persist after the delay time has elapsed,
preventing misdetection caused by inrush current.
Hot plugging
Inrush current
Flag output
Time
ROHM
Conventional
Misdetection prevented
due to built-in filter
No filter – microcontroller
notified of overcurrent
condition
∗ Hot plugging : Inserting a device to the USB port while powered up.
This causes an inrush current to flow.
Applicable Models : BD6538G, BD2224G, BD2225G
Reverse current prevention function
Reverse current prevention function ensures
that the output is completely OFF
A parasitic diode exists
Conventional P-MOS FET Switch
In conventional MOSFETs a parasitic diode exists between the
Source
Gate
Drain
P
Parasitic
Diode
P
Source
Gate
N
Drain and Source, allowing current to flow from the output to the
N
Current flows even
when the switch is OFF
Drain
ROHM’s unique configuration cancels the parasitic diode
ROHM’s N-MOS FET Switch
current output USB high side switch ICs integrates a structure
Source
Gate
Drain
Drain
that cancels the effects of the parasitic diode, preventing reverse
P
N
N
P
Reverse
current
Parasitic
diode
canceled
Gate
current from flowing when the switch is turned OFF.
Reverse
current
Parasitic
diode
input, even when the MOSFET is turned OFF. ROHM’s 1ch small
Source
Applicable Models : BD6524HFV, BD6528HFV, BD6529GUL
Low ON-resistance switch
Time
No flow
The diode is canceled,
preventing reverse current
when the switch is OFF
UVLO circuit
(Under Voltage Lock Out)
Output discharge circuit
Thermal shutdown
When the power is turned OFF a
The thermal shutdown circuit turns the
Bi-
A UVLO circuit is built in that prevents
discharge circuit located between the
switch OFF once the chip temperature
CDMOS technology, ensuring low
malfunctions when the input voltage
output and Ground terminals is activated,
rises above a predetermined value,
voltage drop.
decreases. The switch is turned OFF
making it possible to immediately
preventing damage while improving
when the input voltage goes below
discharge the capacitive load.
the reliability of the set. An automatic
A
low
ON-resistance
integrated
using
switch
proprietary
is
2.3V, and is kept OFF until the voltage
restore circuit is built in that turns the
rises above 2.5V.
switch ON when the temperature
decreases to within normal limits.
Applicable Models : BD6524HFV, BD2202G,
BD2206G, BD6538G, BD2224G, BD2225G
Applicable Models : BD6524HFV, BD6528HFV,
BD6529GUL
Applicable Models : BD2202G, BD2206G,
BD6538G, BD2224G, BD2225G
Specifications
Part No.
ON-resistance
Current
Input voltage
consumption (VDD=5V)
(V)
(µA)
(mΩ)
Control
input logic
Output
current
(A)
Output
Limit
Detection
Discharge
current value current value startup time
resistance
10%→90%(ms)
(A)
(A)
(Ω)
Thermal
shut down
Package
BD6524HFV
3.0 to 5.5
50
200
H Active
H>2.5V/L<0.7V
0.5
None
None
0.4
200
None
HVSOF6
BD6528HFV
0.0 to 2.7
20
110
H Active
H>1.2V/L<0.4V
0.5
None
None
0.5
70
None
HVSOF6
BD6529GUL
0.0 to 2.7
20
100
H Active
H>1.2V/L<0.4V
0.5
None
None
0.5
70
None
VCSP50L1
BD2202G
2.7 to 3.6
70
150
H Active
H>2.0V/L<0.8V
None
None
0.4
(Latch type)
1.2
None
Restore
SSOP5
BD2206G
2.7 to 3.6
70
150
H Active
H>2.0V/L<0.8V
None
None
1.05
(Latch type)
1.2
None
Restore
SSOP5
BD6538G
2.7 to 5.5
110
150
H Active
H>2.0V/L<0.8V
None
0.75
0.5
(Latch type)
1.0
None
Restore
SSOP5
1.0
None
Restore
SSOP5
1.0
None
Restore
SSOP5
BD2224G
2.7 to 5.5
110
150
H Active
H>2.0V/L<0.8V
None
0.75
BD2225G
2.7 to 5.5
110
150
L Active
H>2.0V/L<0.8V
None
0.75
14
0.5
(Automatic
restoration type)
0.5
(Automatic
restoration type)
Designed for power supply blocks in PCs and digital consumer devices
1ch Large Current Output
Power Management Switch ICs
ROHM large current (2A max) power management switch ICs integrate a low ON-resistance N-MOS
switch and can easily control the power lines into multiple blocks using a single chip.
LINEUP
Package
2.0A Power Switch IC
BD6520F
SOP8
2.0A Power Switch IC with Reverse Current Prevention Function
BD6522F
SOP8
Please refer to pgs. 3, 4
Actual size shown.
Power management on a single chip
Configure power management switches easily
As notebook PCs and other compact, portable devices
increase in sophistication while becoming smaller and more
lightweight power efficiency becomes increasingly important in
order to prolong battery life.
Most of these devices typically incorporate various circuit
blocks and power supply systems that go into standby (idle)
state when not in use, reducing overall power consumption.
Conventional power management circuits are typically
configured using a number of components, including
PMOSFETs for switching, NMOSFETs for control, and CR
circuits to adjust startup times.
ROHM’s BD6520F and BD6522F integrate a low ONresistance NMOS switch and drive circuit into a single chip,
simplifying power management considerably. In addition, soft
start and load discharge functions, along with multiple
protection circuits, are built in, simplifying design while
ensuring a greater level of reliability.
Power
switch
r 5V
o
3.3V
Power
switch
Power
switch
oller
Contr
ip
Ch
Set
o
em b
Mod
ard
Discrete component configuration
Input voltage
monitor?
Chip
temperature?
Reverse current
prevention circuit?
Input
Output
Output discharge
circuit?
Soft start
circuit?
Advantages
ON/OFF
ROHM power switch
BD6520F
BD6522F
All in One
Reverse current prevention
(BD6522)
Input
Output
Variable
soft start
UVLO
Switch control
ON/OFF
15
• The soft start function
suppresses current surges
• Thermal shutdown prevents
damage due to overheating
• The UVLO circuit prevents
undervoltage malfunctions
• The output discharge circuit
rapidly discharges load
capacitance
• The reverse current prevention
function prevents reverse current
flow from the output terminal
TSD
Soft start with startup time adjustment function
Soft start function prevents inrush current
Without soft start
The startup time
can also be adjusted
via external capacitor
With soft start
Output current
Large
inrush
current
Output current
When the power supply is turned ON a large inrush current
suddenly flows into the decoupling capacitor, placing a
considerable load on the power circuitry in the previous stage
as well as possibly damaging the IC itself.
The BD6520F and BD6522F integrate a soft start function that
suppresses inrush current, significantly improving the safety
and stability of the entire set.
Inrush current1
Css : Open
SS
Css
Inrush current2
Css : 1000pF
Inrush current3
Css : 2200pF
Time (1ms /div)
Switch ON
Time (1ms /div)
Switch ON
Thermal shutdown (TSD) circuit with latch
Without
Latch
Junction temperature
Thermal shutdown latch OFF function
ensures stable operation
Both the BD6520F and BD6522F integrate a thermal shutdown
function at the switch circuit, shutting OFF operation once the
temperature exceeds a threshold value. The latch OFF circuit
is activated during thermal shutdown, preventing repeated
shutdowns caused by variations in the chip temperature.
Turning the switch OFF or activating the UVLO circuit resets
the thermal shutdown latch OFF function.
TSD Detection
Restored
With
Latch
Time
Without Latch
Switch output
the switch is turned ON and OFF
repeatedly, causing damage.
With Latch
the switch is continuously in the OFF
state, resulting in stable operation.
Time
Reverse current
prevention function
Output discharge circuit
A configuration that cancels the parasitic
the output and GND terminals when the
Output
The discharge circuit operates between
diode between the Source and Drain
Input
switch is turned OFF, ensuring rapid
Output
discharge of capacitive loads.
prevents reverse current from flowing
OFF
when the switch is turned OFF.
DIS
CHARGE
OFF
Built-in output diischarge circuit
Applicable Models : BD6522F
UVLO circuit
(Under Voltage Lock Out)
Low ON-resistance switch
A low ON-resistance switch is integrated
A UVLO circuit is built in that prevents
Input
using proprietary Bi-CDMOS technology,
Output
ensuring a low voltage drop.
malfunctions when the input voltage
decreases. The switch is turned OFF
when the input voltage goes below 2.3V,
UVLO
and is kept OFF until the voltage rises
Output OFF: Vcc=Below 2.3V
Automatic restoration: Vcc=Over 2.5V
above 2.5V.
Low power
consumption operation
Low
ON-resistance
Abundant sales
Operating
Our units are used in a variety of
110µA
ROHM’s switch ICs utilize a low power
applications,
Man Power
Swit agemen
ch IC t
consumption design featuring a current
consumption of 110µA when ON and 0µA
with
an
emphasis
on
notebook PCs and peripheral devices.
when OFF.
0µA
Standby
Specifications
ON-resistance
Control input
(VDD=5V)
logic
(mΩ)
Input voltage
(V)
Current
consumption
(µA)
BD6520F
3.0 to 5.5
110
50
BD6522F
3.0 to 5.5
110
50
Part No.
Output
current
(A)
Output
startup time
10%→90%(ms)
Output
discharge
circuit
UVLO
Thermal
shut down
Package
H Active
H>2.5V/L<0.7V
2
2.0
Available
Available
Latch
SOP8
H Active
H>2.5V/L<0.7V
2
1.0
Available
Available
Latch
SOP8
16
Ideally suited for ultra-compact PC systems
MOSFET Controller IC
for Load Switches
The BD2270HFV power management switch IC integrates a driver circuit in order to drive an external
NMOSFET, making it possible to optimize the output based on current requirements. In addition, a charge
pump circuit is built in to drive the NMOSFET, reducing the number of parts required while simplifying
design. Ideal for PCs and ON/OFF switching of block circuits.
LINEUP
Package
External NMOSFET Controller IC for Load Switches
Front
BD2270HFV
Back
HVSOF5
Please refer to pgs. 3, 4
Actual size shown.
NMOSFET configuration facilitates smaller power management switch designs
The BD2270HFV is designed to drive an external low ON-resistance NMOSFET as a switch. A number of circuits are integrated into
a single chip in addition to a charge pump for driving the Gate circuit, such as discharge, control, and comparator (with hysteresis)
circuits, simplifying operation and design compared to discrete solutions.
Parallel operation
(depending on current value)
Conventional
Discrete component configuration
Input voltage
PMOS
Output voltage
PMOS switch
PMOS switches, although they do
not require a step-up circuit, are
unsuitable for low voltage and/or
high current switching applications.
PMOS
Slow start
control
ON
ON
Output discharge
Requires complicated circuit design
and additional parts
ROHM
MOSFET Controller + NMOSFET Configuration
Output voltage
Input voltage
Built-in step-up circuit
NMOS
FET
A 3x step-up charge pump
circuit is integrated for
NMOSFET drive.
NMOS switch
GATE
Allows the use of an NMOSFET
optimized for the application
circuit in question
5
1
Vcc
OSC
Charge
Pump
×3)
(×
2
GND
4
DISC
ON/OFF
3
Soft start function
Output discharge circuit
Control
Makes it possible to instantaneously
discharge the capacitive load
AEN
Soft start operation is performed
based on the external NMOSFET
Gate charge capacity
BD2270HFV
Simply select an NMOSFET
17
Mounting area comparison
Conventional discrete
component configuration
Ultra-compact, space-saving package enables
mounting virtually anywhere
Input voltage
The BD2270HFV is available in the compact HVSOF5 package
measuring just 1.6×1.6×0.6mm. This IC provides a significant
reduction not only in the number of external parts required, but
in mounting area as well – approximately 35% less than
comparable discrete configurations – making it ideal for
compact devices of all types.
PMOS
(SOP8)
Control section
Two
ON
small-signal
NMOSFETs
(UMT5)
ROHM
Output voltage
Input voltage
NMOS
(SMT6)
Output voltage
BD2270HFV
ON
ON
(HVSOF5)
R : MCR01
(1005)×4
Mounting
area reduced
by 35%
PMOS FET :
SOP8
Controller :
HVSOF5
1.6mm
NMOS FET :
SMT6
Full scale
0.6mm
1.6mm
Controller :
UMT5
Full scale
Area
: 34mm
ON resistance : 25mΩ
Compact HVSOF5
package
2
Area
: 12mm2
ON resistance : 19mΩ
Soft start function with adjustable startup time
Soft start function prevents inrush current
Without soft start
The startup time
can be adjusted
via external capacitor
With soft start
Large
inrush current
Input voltage
Output current
Output current
When the AEN terminal is at High the charge pump in the
BD2270HFV will charge the Gate of the NMOSFET. The
amount of time the NMOSFET is turned ON is determined by
the Gate capacity. Connecting a capacitor to the Gate terminal
makes it possible to adjust the turn ON time while reducing
inrush current.
Inrush current1
Css : Open
ON/OFF
Output voltage
BD2270HFV
Inrush current2
Css : 1000pF
Inrush current3
Css : 2200pF
Time (1ms /div)
Switch ON
Time (1ms /div)
Switch ON
Built-in 3× step-up charge pump for gate drive
Output discharge circuit
The voltage required for driving the NMOSFET Gate is generated by the internal
The output discharge circuit operates when the AEN terminal is Low. During
charge pump, which provides 3 times the voltage level of the supply voltage. In
operation the MOSFET switch (200Ω typ.) mounted between the DISC and GND
addition, a capacitor is built in, eliminating the need for external components.
terminals turns ON. Connecting between the DISC terminal and source (load)
side of the NMOSFET enables immediate discharging of capacitive loads.
Analog control input terminal
Low power consumption operation
The AEN input is connected to a built-in hysteresis comparator, enabling control
ROHM’s switch ICs utilize a low power consumption design featuring a current
via analog signals while facilitating sequence control for ON/OFF switching.
consumption of 50µA when ON and 0µA when OFF.
General
Information
3
Inrush current
Smoothing capacitors are connected to the power switch output. Since the
Normal switch
Soft start switch
electrical charge in the capacitors is initially zero, there is a considerable
Large
inrush current
amount of current flow (inrush current) when the switch is turned ON as
the charge builds up. As a result, the system could malfunction due to
Output
current
Small
inrush current
Output
current
operation of the current limiting /low voltage reset protection circuits or
Switch ON
voltage drops along the power supply line.
Time
Switch ON
Time
ROHM’s power switch ICs suppress inrush current to the output capacitors
by turning on the switches gradually.
Output
voltage
Output
voltage
Switch ON
Time
Switch ON
Time
Specifications
Part No.
BD2270HFV
Operating voltage
(V)
Current
consumption
(µA)
Control input
logic
GATE terminal
output current
Output startup time
VGATE>4V
Discharge
resistance
(Ω)
Thermal
shut down
Package
2.7 to 5.5
50
H Active
H>2.45V/L<1.35V
13.5V
at Vcc=5.0V
130µsec
200
None
HVSOF5
18
Ideal for ExpressCard™ power supply control
Power Switch ICs
for ExpressCard™
ROHM offers a lineup of power switch ICs compatible with the ExpressCard™ standard
capable of power management operation using a single chip.
LINEUP
Package
Standard Package Type with Delay Flag Output Function (Compliance ID EC100001)
SSOP-B24
Front
Back
HTSSOP-B24
SSOP-B20
SSOP-B20
Front
Back
VQFN020V4040
Please refer to pgs. 3, 4
Actual size shown.
New ExpressCard™ interface
3ch power switch and management function
for ExpressCard™ PC applications
Serial
PCI ExpressTM
USB2.0
ExpressCardTM
SMBus
Management functions, protection circuits, and a 3ch power
switch are integrated onto a single chip. Along with low ONresistance, which limits conversion losses, the power switch
comes with a full line of management functions, including card
removal and power supply/chipset standby notification, making
it ideally suited as an easily configurable “ExpressCard™”
interface that conforms to PCMCIA standards.
System
chipset
Reset signal
ExpressCardTM
Card power supply
Power
switch
Card detection
signal
System status signal
Overcurrent protection
circuit output
3.3V
ON-resistance
35 mΩ to 42mΩ
Power switch
3.3V/1.3A
ON-resistance
100mΩ to 120mΩ
AUX3.3V/275mA
1.5V
ON-resistance
42mΩ to 45mΩ
1.5V/650mA
First in the world to obtain a Compliance ID
The BD4153EV, BD4153EFV designed for use with the new
“ExpressCard™” PC card standard endorsed by PCMCIA
(Personal Computer Memory Card International Association)
were the first in the world to be awarded a Compliance ID
(EC100001), indicating compliance with all of the required
specifications, making it possible to configure optimized
applications.
Output Discharge System Overcurrent
status
monitor circuit
control
monitor
UVLO
Acquired IDs
Part No.
BD4153FV
19
Compliance ID No.
EC100001
BD4153EFV
EC100001
BD4154FV
EC100040
BD4155FV
EC100052
BD4156MUV
EC100163
Soft
start
TSD
Overcurrent
detection
Soft start control terminal limits inrush current
Soft start function prevents inrush current
BD4153FV/EFV
Output current
When the power supply is turned ON a large surge of current
suddenly flows into the decoupling capacitor, placing a
considerable load on the power circuitry in the previous stage
as well as possibly damaging the IC itself.
ROHM power switch ICs for ExpressCard™ integrate soft start
functionality into each channel. BD4154FV and BD4155FV
feature a fixed startup time of 1ms, while the BD4153FV and
BD4153EFV offer adjustable startup times via external
capacitor.
Css : Open
Css : 1000pF
Css : 2200pF
Time (1ms /div)
Switch ON
Output discharge characteristics
Output
OFF
Switching
signal
Built-in discharge circuit quickly shuts card OFF
When the switch is turned OFF the remaining voltage in the
card’s power supply lines is discharged through the discharge
switches between each output and Ground, preventing
malfunction. The discharge circuit operates when the card is
ejected and during UVLO, minimizing the amount of time the
supply voltage is unstable.
Output
voltage
Output
OFF
Conventional units
without discharge circuits
BD4153FV/EFV units
with discharge circuits
Time (1ms /div)
Output OFF
Built-in power management circuit
Status monitoring function eases chipset load
The input voltage is OK, Switch
The system is ON,
ON
A card is present,
Input voltage
confirmation
TM
ExpressCard
1
Chipset
2
Check
System ON /OFF
standby verification
UVLO circuit
(Under Voltage Lock Out)
Card
Power Supply
k
ec
Ch
Built-in status monitoring detects card presence, system status,
and input voltage, enabling power ON/OFF operation using a
single chip – eliminating the need for software control while
ensuring support for sudden card insertion/removal.
Check
Monitors of
system
conditions
Power switch
3
Check for the
presence /absence
of card
Overcurrent flag function
The OC terminal in the BD4153FV and
Input
BD4153EFV will go Low if the current flow
Output
switch malfunctions when the input
through the 3ch switches exceeds a preset
voltage drops. The switches are turned
level, notifying the system of an overcurrent
OFF when the input voltage drops below a
UVLO
state. In addition, the mask time can be set
threshold value and will remain OFF until
Output OFF: Vcc=Below 2.3V
Automatic restoration: Vcc=Over 2.5V
so that the device will not respond to
the input voltage reaches a preset level.
ExpressCardTM
Output short
detection
Dead band caused by built-in filter
Output current
A UVLO circuit is built in that prevents
SS
Css
Flag
output
Time
extremely short current pulses by connecting
a capacitor to the OC Delay terminal.
Applicable Models : BD4153FV, BD4153EFV
Thermal shutdown
Overcurrent limiting circuit
The thermal shutdown circuit turns the
switch OFF once the chip temperature
The overcurrent circuit in the Power
Automatic
restore
rises above a predetermined value,
circuit is built in that turns the switch ON
Expr
ess
Card
TM
U SB
the current flow through the 3ch switches
preventing damage while improving the
reliability of the set. An automatic restore
Slam!
switch series for ExpressCard™ monitors
and limits the output current once it
Man Power
Swit agemen
ch IC t
Man Power
Swit agemen
ch IC t
exceeds a threshold value. This, along
with the overcurrent function flag, ensures
when the temperature decreases to within
even greater reliability.
normal limits.
Specifications
Input voltage
(V)
Number of
output
channels
On-resistance
(mΩ)
Output current
(A)
NRCS
(Soft start)
Thermal
shut
down
UVLO
BD4153FV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
35(3.3V)/100(3.3V)/42(1.5V)
1.3/0.275/0.65
Variable
Restore
Available
SSOP-B24
BD4153EFV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
35(3.3V)/100(3.3V)/42(1.5V)
1.3/0.275/0.65
Variable
Restore
Available
HTSSOP-B24
BD4154FV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
42(3.3V)/120(3.3V)/45(1.5V)
1.3/0.275/0.65
Fixed
Restore
Available
SSOP-B20
BD4155FV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
42(3.3V)/120(3.3V)/45(1.5V)
1.3/0.275/0.65
Fixed
Restore
Available
SSOP-B20
BD4156MUV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
42(3.3V)/120(3.3V)/45(1.5V)
1.3/0.275/0.65
Fixed
Restore
Available
VQFN020V4040
Part No.
20
Package
LINEUP
P.5
1ch Small Current Output USB High Side Switch ICs
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD2055AFJ
2.7 to 5.5
90
80
H Active
H>2.0V/L<0.8V
0.5
1.2
BD2045AFJ
2.7 to 5.5
90
80
L Active
H>2.0V/L<0.8V
0.5
1.2
P.7
Thermal
shut down
Overcurrent
flag output delay
(ms)
Package
Yes
Restore
None
SOP-J8
Yes
Restore
None
SOP-J8
Thermal
shut down
Overcurrent
flag output delay
(ms)
Package
1ch Large Current Output USB High Side Switch ICs
Output
Overcurrent
Pin
detection value startup time
10%→90%(ms) compatibility
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD2061AFJ
2.7 to 5.5
90
80
L Active
H>2.0V/L<0.8V
1.5
1.2
Yes
Restore
2.5
SOP-J8
BD2065AFJ
2.7 to 5.5
90
80
H Active
H>2.0V/L<0.8V
1.5
1.2
Yes
Restore
2.5
SOP-J8
BD6518FJ
3.0 to 5.5
90
90
H Active
H>2.5V/L<0.7V
1.1
1.0
None
Restore
2.5
SOP-J8
BD6519FJ
3.0 to 5.6
90
90
L Active
H>2.5V/L<0.7V
1.1
1.0
None
Restore
2.5
SOP-J8
BD2051AFJ
2.7 to 5.5
90
80
H Active
H>2.0V/L<0.8V
1.0
1.2
Yes
Restore
None
SOP-J8
BD2041AFJ
2.7 to 5.5
90
80
L Active
H>2.0V/L<0.8V
1.0
1.2
Yes
Restore
None
SOP-J8
Thermal
shut down
Overcurrent
flag output delay
(ms)
Package
Part No.
Under
development
Output
Overcurrent
Pin
detection value startup time
10%→90%(ms) compatibility
(A)
Input voltage
(V)
Part No.
P.9
2ch Small Current Output USB High Side Switch ICs
Output
Overcurrent
Pin
detection value startup time
10%→90%(ms) compatibility
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD2056AFJ
2.7 to 5.5
110
100
H Active
H>2.0V/L<0.8V
0.5
1.8
Yes
Restore
None
SOP-J8
BD2046AFJ
2.7 to 5.5
110
100
L Active
H>2.0V/L<0.8V
0.5
1.8
Yes
Restore
None
SOP-J8
Thermal
shut down
Overcurrent
flag output delay
(ms)
Package
Part No.
P.11 2ch Large Current Output USB High Side Switch ICs
Output
Overcurrent
Pin
detection value startup time
10%→90%(ms) compatibility
(A)
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control input
logic
BD6512F
3.0 to 5.5
85
100
H Active
H>2.5V/L<0.7V
1.65
1.5
None
Latch
None
SOP8
BD6513F
3.0 to 5.5
85
100
L Active
H>2.5V/L<0.7V
1.65
1.5
None
Latch
None
SOP8
BD6516F
3.0 to 5.5
100
110
H Active
H>2.5V/L<0.7V
1.65
1.5
None
Restore
1.0
SOP8
BD6517F
3.0 to 5.5
100
110
L Active
H>2.5V/L<0.7V
1.65
1.5
None
Restore
1.0
SOP8
BD2052AFJ
2.7 to 5.5
110
100
H Active
H>2.0V/L<0.8V
1.00
1.8
Yes
Restore
None
SOP-J8
BD2042AFJ
2.7 to 5.5
110
100
L Active
H>2.0V/L<0.8V
1.00
1.8
Yes
Restore
None
SOP-J8
Part No.
21
For PCs and Digital Consumer Electronics Ver.3.0
Power Management Switch ICs
P.13 1ch Small Current Output Power Management Switch ICs
Part No.
ON-resistance
Current
Input voltage
consumption (VDD=5V)
(V)
(µA)
(mΩ)
Control
input logic
Output
current
(A)
Limit
Detection
Discharge
Output
current value current value startup time
resistance
(A)
(A)
(Ω)
10%→90%(ms)
Thermal
shut down
Package
BD6524HFV
3.0 to 5.5
50
200
H Active
H>2.5V/L<0.7V
0.5
None
None
0.4
200
None
HVSOF6
BD6528HFV
0.0 to 2.7
20
110
H Active
H>1.2V/L<0.4V
0.5
None
None
0.5
70
None
HVSOF6
BD6529GUL
0.0 to 2.7
20
100
H Active
H>1.2V/L<0.4V
0.5
None
None
0.5
70
None
VCSP50L1
BD2202G
2.7 to 3.6
70
150
H Active
H>2.0V/L<0.8V
None
None
0.4
(Latch type)
1.2
None
Restore
SSOP5
BD2206G
2.7 to 3.6
70
150
H Active
H>2.0V/L<0.8V
None
None
1.05
(Latch type)
1.2
None
Restore
SSOP5
BD6538G
2.7 to 5.5
110
150
H Active
H>2.0V/L<0.8V
None
0.75
0.5
(Latch type)
1.0
None
Restore
SSOP5
1.0
None
Restore
SSOP5
1.0
None
Restore
SSOP5
BD2224G
BD2225G
2.7 to 5.5
110
2.7 to 5.5
110
150
H Active
H>2.0V/L<0.8V
None
0.75
150
L Active
H>2.0V/L<0.8V
None
0.75
0.5
(Automatic
restoration type)
0.5
(Automatic
restoration type)
P.15 1ch Large Current Output Power Management Switch ICs
Input voltage
(V)
Current
consumption
(µA)
ON-resistance
(VDD=5V)
(mΩ)
Control
input logic
Output current
(A)
Output
startup time
10%→90%(ms)
Output
discharge
circuit
UVLO
Thermal
shut down
Package
BD6520F
3.0 to 5.5
110
50
H Active
H>2.5V/L<0.7V
2
2.0
Available
Available
Latch
SOP8
BD6522F
3.0 to 5.5
110
50
H Active
H>2.5V/L<0.7V
2
1.0
Available
Available
Latch
SOP8
Part No.
P.17 MOSFET Controller IC for load switches
Part No.
BD2270HFV
Operating voltage
(V)
Current
consumption
(µA)
Control
input logic
GATE terminal
output current
Output startup time
VGATE>4V
Discharge
resistance
(Ω)
Thermal
shut down
Package
2.7 to 5.5
50
H Active
H>2.45V/L<1.35V
13.5V
at Vcc=5.0V
130µsec
200
None
HVSOF5
P.19 Power Switch ICs for ExpressCard™
Input voltage
(V)
Number of
output
channels
On-resistance
(mΩ)
Output current
(A)
NRCS
(Soft start)
Thermal
shut
down
UVLO
BD4153FV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
35(3.3V)/100(3.3V)/42(1.5V)
1.3/0.275/0.65
Variable
Restore
Available
SSOP-B24
BD4153EFV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
35(3.3V)/100(3.3V)/42(1.5V)
1.3/0.275/0.65
Variable
Restore
Available
HTSSOP-B24
BD4154FV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
42(3.3V)/120(3.3V)/45(1.5V)
1.3/0.275/0.65
Fixed
Restore
Available
SSOP-B20
BD4155FV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
42(3.3V)/120(3.3V)/45(1.5V)
1.3/0.275/0.65
Fixed
Restore
Available
SSOP-B20
BD4156MUV
3.0 to 3.6/3.0 to 3.6/1.35 to 1.65
3
42(3.3V)/120(3.3V)/45(1.5V)
1.3/0.275/0.65
Fixed
Restore
Available
VQFN020V4040
Part No.
22
Package
09029EAC
1st. July, 2009.
Catalog No.52S6087E 09.7 ROHM © PDF