TI Battery Chargers
Key Products for Battery Chargers and Front-End Charging
Protection
2011
1
Switch-mode Multi-Cell
Chargers w/ Power Path
Linear Single Cell
Chargers
Major TI Battery Chargers & Applications
bq2404x/bq2409x
bq2404x/bq2409x
•• 1A
1A and
and lower
lower charging
charging current
current
bq2407xT
bq2407xT
•• Lowest
Lowest solution
solution cost
cost chargers
chargers
•• USB
USB Friendly
Friendly Input
Input
•• bq2404x
bq2404x only
only 2x2mm
2x2mm QFN
QFN
•• Instantly
Instantly power
power the
the system
system even
even with
with
aa depleted
depleted battery
battery w/
w/ Power
Power Path
Path
•• Up
Up to
to 1.5A
1.5A charging
charging current
current
•• USB
USB Friendly
Friendly Input
Input
bq24133/bq24170
bq24133/bq24170
bq24610
bq24610
•• Up
Up to
to 4A
4A charging
charging current
current for
for 11 to
to 33
cells
cells
•• Optimized
Optimized for
for size
size &
& efficiency
efficiency w/
w/
Integrated
Integrated FETs
FETs &
& switch-mode
switch-mode
operation
operation
•• Up
Up to
to 10A
10A charging
charging current
current for
for 11 to
to 66
cells
cells
•• Drives
Drives external
external Power
Power MOSFETs
MOSFETs for
for
maximum
maximum flexibility
flexibility
2
Lithium-Based Battery Chargers
Input Operating Voltage Range (V)
4.0
4.35 4.45
4.5
6
5
6.5
7
7.5
9
10.5
16
16.5
20
24
28
30
33
Host
Interface
bq2404x/5x
For up to 1.5A Charge Current
Linear
3.5
Legend
Maximum
Charge Current
bq2409x
bq2407x/7xT (‘74 10.5 Vin
Max)
Input Operating
Voltage Range
bq25040
bq25060
Single Cell
bq24210
# of Cells
Multi-Cell
I2C
bq24185
bq24156A
For above 1A Charge Current
Switch-mode
(external FETs)
Switch-mode
(internal FETs)
= Solar Input
I2C
I2C
bq24153A/55/58
= Sampling Now &
Production in 1H2011
bq24170/71/72/33 (‘133 2.5A)
1-3
Only
‘113A
bq24113A/20/23/25/33
1-3
(Logic)
bq24725
2-4
1-6 Li-Ion, 1-7 LiFePO4
0.8
1.0
1.1
bq2460x/1x/2x/3x/5x (‘618 Vin Min 4.7V, ‘617 Vin Max 24V, ‘650 Solar)
1.25
1.5
2
SMBus
SMBus
bq24707
1-4
4
= Supports
LiFePO4
8
Maximum Charge Current (A)
10
= Input Voltage
Rating
= Charger
Family has
Devices that
Support Power
Path
bq24040/50 – 800mA Linear Charger in 2x2
QFN with USB D+ D- Detection
Low
Solution
Cost
• 30V input rating with input OVP
• Input voltage dynamic power management
• Selectable 100mA or 500mA USB current limit
• Adjustable precharge and termination current
• TS pin to monitor pack temperature
• USB D+ D- Detection (bq2405x)
• Mobile Phones
• MP3 Players
• Low Power Handheld
bq24040: $0.90
bq24050: $0.99
EVM
Also see
bq24090: $0.70
• Supports unregulated adapters
• Protection against poor USB sources
• USB compliance
• Flexibility
• Meets new safety standard
• Fast charging from adapter before
host takes any action
bq2407x/7xT – USB-Friendly Li-Ion Battery Charger with
NTC Monitoring and Dynamic Power-Path Management
•
Programmable Charge Current with Current Monitoring
Output (ISET)
– Input Current: 100mA, 500mA, and User Programmable
– Charge Current from up to 1.5A
BAT
2
11
OUT
BAT
3
10
OUT
CE
4
bq24075T
9 CHG
7
8
PGOOD
VSS
6/28/2011
Small Package: 16 Pin 3mm x 3mm QFN
•
ILIM
EN1
Complete System Protection
– Voltage: UVLO, OVP, Sleep Mode, Battery OVP, VIN-DPM
– Current Limit: Input Source and Charge Current Limit
– Thermal: Regulation 125ºC, Shutdown 155ºC
– Battery Pack NTC Monitoring
• Simple current-based (bq2407x)
• Flexible voltage-based (bq2407xT)
– Dynamic Safety Timers: Programmable Pre-charge and
Fast-charge Timer
12
6
•
1
EN2
Battery Disconnect Input (SYSOFF)
TS
5
•
13
Dynamic Power Path Management (DPPM)
– Support System Load without Extending Charge Time
– Accurate Termination
14
•
15
+/-1% Accurate Battery Charge Voltage
16
•
IN
Input voltage ABS Max 28V, 3.5V - 10.5V operating range
VREF
•
Power Path
SYSOFF
Fully Compliant USB Charger
– Selectable 100-mA and 500-mA Maximum Input Current
– 100-mA Maximum Current Limit Ensures Compliance to
USB-IF Standard
– Input-based Dynamic Power Management (VIN-DPM) for
Protection Against Poor USB Sources
ISET
•
5
bq24075T Application Circuit
VIN based current
reduction loop for USB
charging
7
9
CHG
28V MAX, 6.5V OVP
PGOOD
AC adapter or USB
IO = 1.5A MAX
VBATREG=4.2V
PowerPath
Mgmt
CE
ILIM
ISET
TMR
4
12
16
14
EN2
IChrg = 1.5A MAX
EN1 IINMAX
L
L
100 mA
L
H
500 mA
H
L
Resistor Programmable
H
H
Chip disable, USB suspend
Flexible voltage-based
battery NTC Monitoring
6/28/2011
bq24153A / 56A
3MHz switch-mode charger w/ Integrated FETs & Host I2C Control
• Built-in input current sensing and limiting
• Synchronous 3MHz PWM controller
• Integrated FETs for up to 1.25A or 1.5A
charge rate
• 20V max input voltage with 6V or 9V OVP
• 0.8A max charge current from USB
• High-Speed (3.4MHz) I2C interface
• 3.5 mm x 3.5 mm 14-Pin QFN Package
• USB compliance, can use cheaper adapter
• High efficiency, small inductor (1uH)
• Small solution size
•
•
•
•
Protects against transient and faulty inputs
Faster charging from USB
High level of programmability
Small solution size
bq24153A/56A Portfolio Position
Part Number
bq24150A/51A/52/53A/56A
VOVP (V)
6.5V
9.8V (‘156A)
16.5V with linear charge above 9.8V
Maximum Charge Current (A)
1.25A
1.55A (‘156A)
1.55A
Input Current Limit with no Host Control
100mA (OTG=LOW);
500mA (OTG=High)
100mA (PSEL=LOW);
None (PSEL=High)
Auto-Start Charging with no Host Control
Yes
No (‘151A)
Yes
Boost Function (USB OTG Support)
Yes
No (‘156A)
Current Limited Switch for Powering
External Accessories from Battery
No
Input Voltage Based DPM
Yes
No (‘150A, ‘151A, ‘152)
Safety Limit Register
Yes
No (‘150A, ‘151A, ‘152)
Hardware Disable Function (CD)
Yes
No (‘150A, ‘151A, ‘152)
TS Pin
No
Package
20-Pin WCSP
bq24180
bq24185
No
Yes
Yes
Yes
25-Pin WCSP
Higher Integration
Controller w/
External MOSFETs
Integrated MOSFETs
Multi-Cell Charger Roadmap
Production
bqSWITCHER I [1-, 2- or 3-Cell]
bqSWITCHER II [1-3 Cell]
SMBus
(3.5x4.5 QFN-20)
(3.5x5.5 QFN-24)
(3.5x7 QFN-34)
bq2410x/1x/2x
bq2417x/3x
•1.1MHz sync charger
•0.8A-2A
•Standalone(0x/2x)/Host (1x)
•Lower EMI
•80-90% Efficiency
•No Selector or DPM
•1.6 MHz
•4A
•Improved efficiency
•Thermal regulation loop
•90-95% Efficiency
•Standalone
•Selector, DPM
bqStroller [1-6 (7) Cell]
bqSuperCap
(3.5x3.5 QFN-16 & 4x4 QFN-24)
(3.5x3.5 QFN-16)
bq24600/1x/20/30
•300k-1.2MHz
•5-28V input; 1-10A
•Safety timer; Temp monitor
•Li-Ion
bq24600: No DPM
bq24610: DPM, Selector
bq24616: JEITA, DPM, Selector
bq24617: ‘610 w/ 5-24V input
bq24618: ‘610 w/ 4.7-28V input
•LiFePO4
bq24620: No DPM
bq24630: DPM, Selector
bq24640
•600kHz
•5-28V input
•Up to 26V output
bqSolar [1-6 (7) Cell]
(3.5x3.5 QFN-16)
bqHighVoltage
[ > 7 Cells]
bq24610EVM
-HV
•High Voltage
EVM/Reference
Design
•Allows 7+ Cell
Charging
bq24765
• 700kHz
• 6A
•Thermal Regulation
Loop
• No system power
selector
SMBus [1-4 Cells]
(3.5x3.5 QFN-20)
bq24725/707
•750kHz
•SMBus
•Li-Ion and others
bq24650
•600kHz
•MPPT for Solar Panel Input
•Li-Ion, Lead-Acid, LiFePO4
Stand-Alone
Host Controlled9
bq24170/171/172
Synchronous Switch-Mode Li-Ion/Li-Polymer Stand-Alone Battery
Charger with Integrated MOSFETs and Power Path Selector
ƒ 1.6MHz Synchronous Switch-Mode Charger with
4A Integrated N-MOSFETs
ƒ 1 to 3 Li-Ion Cells in Series
ƒ Up to 94% Efficiency
ƒ Dynamic Power Management with Integrated
Power Path Selector
ƒ 4.5V-17V Input Operating Range with Prog. OVP
ƒ ± 0.5% voltage regulation and ± 4% input & charge
current regulation
ƒ 3.5 x 5.5 mm QFN-24 Package
ƒ Double the charge current capability vs. previous
generation plus save over 25% area with
integrated FETs and small inductor
ƒ Easily set at 4.2V increments (‘170) or set your
own charge voltage (‘172 or ‘171 (JEITA))
ƒ Enjoy a lower thermal impact to your system
ƒ Maximize adapter current capability
ƒ Supports 5V, 9V, 12V and 15V adapters
ƒ Maximize battery capacity and cycle life
Q2
Q1
SYSTEM
ADAPTER
ACN
ACP
CMSRC
VBAT
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
Tablet PC
Netbook and Ultra-Mobile Computers
Portable Data Capture Terminals
Portable Printers
Medical Diagnostics Equipment
Battery Bay Chargers
Battery Back-Up Systems
VREF
D2
D1
PVCC
Q3
BATDRV
ACDRV
VBAT
SW
VREF
VREF
bq24170
ISET
BTST
ACSET
REGN
AVCC
PGND
OVPSET
VREF
TTC
TS
RT
103AT
VREF
D3
STAT
SRP
SRN
CELL
THERMAL
PAD
Float
bq2417x Product Positioning
Device
Battery
Chemistry
Input
Voltage
Fast
Charge
Current
Charge
Voltage
Power Path (DPM)
Switching
MOSFET
Temperature
Qualification
Profile
Package
bq24170
Li-Ion or
Li-Polymer
4.5-17V
Max 4A
1-3 cell
4.2V/cell
ACFET NMOS
BATFET PMOS
Internal
5-40C or
Wider
3.5x5.5
QFN-24
bq24171
Li-Ion or
Li-Polymer
4.5-17V
Max 4A
1-3 cell
Adjustable
ACFET NMOS
BATFET PMOS
Internal
JEITA
3.5x5.5
QFN-24
bq24172
Li-Ion or
Li-Polymer
4.5-17V
Max 4A
1-3 cell
Adjustable
ACFET NMOS
BATFET PMOS
Internal
5-40C or
Wider
3.5x5.5
QFN-24
bq24133
Li-Ion or
Li-Polymer
4.5-17V
Max 2.5A
1-3 cell
4.2V/cell
ACFET NMOS
BATFET PMOS
Internal
5-40C or
Wider
3.5x5.5
QFN-24
bq24616
Li-Ion or
Li-Polymer
5-28V
Max 10A
1-6 cell
Adjustable
ACFET PMOS
BATFET PMOS
External
JEITA
4x4
QFN-24
bq24618
Li-Ion or
Li-Polymer
4.7-28V
Max 10A
1-6 cell
Adjustable
ACFET PMOS
BATFET PMOS
External
5-40C or
Wider
4x4
QFN-24
bq2461x/3x: 28-Vin Charge Controller With Integrated Power Path Selector
VFB
bq24610
Li-Ion
600kHz
2.1V (4.2V/cell)
bq24617
Li-Ion
600kHz
2.1V (4.2V/cell)
bq24630
LiFePO4
300kHz
1.8V (3.6V/cell)
LODRV
PH
HIDRV
BTST
/BATDRV
VCC
bq24610/30
ACP 2
/ACDRV 3
CE 4
17 GND
16 ACSET
4x4 mm
QFN-24
STAT1 5
15 ISET2
14 SRP
TOP VIEW
13 SRN
TS 6
7
8
9 10 11 12
TI Information - Selective Disclosure
VFB
Frequency
18 REGN
ACN 1
ISET1
Chemistry
24 23 22 21 20 19
VREF
Options
• Suitable for a wide range of applications
• Maximizes battery capacity, cycle life and safety
STAT2
Portable Notebook, Netbook, UMPC or MID
Personal Digital Assistants, Handheld Terminals
Industrial and Medical Equipments
Portable Equipments with up to 6 cell Li-Ion
Batteries or 7 cell LiFePO4 Batteries
Improved Safety
Wide adapter input voltage range
Minimize external component number
Small size inductor
Reliable operation
Save board space and cost
Maximize adapter current capability
/PG
•
•
•
•
•
•
•
•
•
•
•
TTC
• High voltage, high frequency, high integration
• 32V absolute maximum rating
• 5-28V input operating range
• internal loop compensation
• 300kHz to 1.2MHz frequency
• Multi-level safety protection, thermal shutdown
• Integrated power path selector
• DPM regulation loop
• Charge Management
• 1 to 6 Li-Ion or 1 to 7 LiFePO4 cells in series
• ± 0.5% voltage regulation, charge conditioning,
charge status, charge termination, safety timer,
battery detection, battery temperature monitoring
6/28/2011
12
bq24610 Application Circuit (Integrated Selector Driver)
Q1
Adapter
Q2
R16
2Ω
C1
2.2µF
*R9
9.31kΩ
*R3
100kΩ
*R5
100kΩ
*R7
100kΩ
C11
VCC
0.1µF ACN
ACP bq24610
ACDRV
VREF
BATDRV
C12
CE
1µF
REGN
ISET1 3A
*R4
32.4kΩ
*R6
10kΩ
*R8
22.1kΩ
*C17
0.047µF
R11:10kΩ
Power
Source
Q3
Selector
C7
0.1uF
C5:1µF
0.3A BTST
ACSET 4A
HIDRV
TS 0-45°C
TTC 4.5hrs
PH
C4
10uF
Q4
L: 6.8µH
C7
10µF
GND
STAT1
* Icharge = 3A
R12:10kΩ
* timer = 4.5 hours R13:10kΩ
* Iprecharge = Iterm = 0.3A
* Idpm = 4A
* Vreg=21V (5 cell)
* VIN max 28V
* Temp range 0-45°C
SRP
STAT2
SRN
PG
RSR
10mΩ
Q5
LODRV
Adapter
C3
10µF
C2
10µF
10Ω
ISET2
Pack
Thermistor
*R10
430kΩ
SYSTEM LOAD
RAC: 10mΩ
C10
0.1µF
21V VFB
Battery Pack
C8
10µF
C9
100pF
R1
953kΩ
R2
105kΩ
bq24610: 600kHz, Li-Ion or Li-Pol
TI Information - Selective Disclosure
6/28/2011
13
bq246xx Product Family
Device
Battery
Chemistry
Switching
Frequnecy
Input
Voltage
(ACOV)
Precharge
Current
Precharge
Threshold
Charge
Voltage
Recharge
Threshold
Power
Path
(DPM)
Temperature
Qualification
Profile
Package
bq24600
Li-Ion or
Li-Pol
1200kHz
5V-28V
(32V)
C/10
VFB=1.55V
2.1-26V
VFB-50mV
No
Li-Ion
0-45C
3.5x3.5
QFN-16
bq24610
Li-Ion or
Li-Pol
600kHz
5V-28V
(32V)
R PROG
(125mA min)
VFB=1.55V
2.1-26V
VFB-50mV
Input
Current
Regulation
Li-Ion
0-45C
4x4
QFN-24
bq24616
Li-Ion or
Li-Pol
600kHz
5V-28V
(32V)
R PROG
(125mA min)
VFB=1.55V
2.1-26V
VFB-50mV
Input
Current
Regulation
Li-Ion
JEITA
4x4
QFN-24
bq24617
Li-Ion or
Li-Pol
600kHz
5V-24V
(26V)
R PROG
(125mA min)
VFB=1.55V
2.1-22V
VFB-50mV
Input
Current
Regulation
Li-Ion
0-45C
4x4
QFN-24
bq24618
Li-Ion or
Li-Pol
600kHz
4.7V-28V
(32V)
R PROG
(125mA min)
VFB=1.55V
2.1-26V
VFB-50mV
Yes
Li-Ion
4x4
QFN-24
bq24620
LiFePO4
300KHz
5V-28V
(32V)
125mA
VFB=0.35V
1.8V-26V
VFB-125mV
No
LiFePO4
3.5x3.5
QFN-16
bq24630
LiFePO4
300KHz
5V-28V
(32V)
125mA
VFB=0.35V
1.8V-26V
VFB-125mV
Input
Current
Regulation
LiFePO4
4x4
QFN-24
bq24640
Super
Capacitor
600kHz
5V-28V
(32V)
Same as Fast
Charge
Current
VFB=1.55V
2.1V-26V
VFB-50mV
No
0-45C
3.5x3.5
QFN-16
bq24650
Li-Ion or
Li-Pol
Lead Acid
LiFePO4
600kHz
5V-28V
(32V)
R PROG
(125mA min)
VFB=1.55V
2.1V-26V
VFB-50mV
Input
Voltage
Regulation
5-40C
3.5x3.5
QFN-16
0-45C
Charger Front End Protection Roadmap
CFET – CFE w/ Integrated FET for PMIC Linear Charger
10.5V OVP
bq24351
bq24350
CFE
OVP Only
bq2438x
bq2430x
1.5A Current
Support
bq2431x
Reverse Adapter
Support
Time
Production
bq2431xA
Charger Front End Protection IC Portfolio
Vin
Max
(V)
OVP
(V)
OCP
Batt
OVP
(V)
LDO
Out
(V)
Max
Operating
Current
Operating
Temp.
Range (°C)
Package
bq24300
30
10.5
Fixed 300mA
4.35
5.5
500 uA
0 to 125
8-QFN
bq24304
30
10.5
Fixed 300mA
4.35
4.5
500 uA
0 to 125
8-QFN
bq24305
30
10.5
Fixed 300mA
4.35
5
500 uA
0 to 125
8-QFN
bq24308
30
6.3
Prog. <1.5A
4.35
5
500uA
-40 to 125
8-QFN
30
5.85
Prog. <1.5A
4.35
-
600 uA
-40 to 125
8-QFN
bq24313
30
10.5
Prog. <1.5A
4.35
5.85
600 uA
-40 to 125
8-QFN
bq24314
30
5.85
Prog. <1.5A
4.35
-
600 uA
0 to 125
8/12QFN
bq24314A
30
5.85
Prog. <1.5A
4.35
-
600 uA
-40 to 125
8-QFN
Device
bq24312
bq24315
30
5.85
Prog. <1.5A
4.35
5.5
600 uA
-40 to 125
8-QFN
bq24316
30
6.5
Prog. <1.5A
4.35
-
600 uA
0 to 125
8/12QFN
bq24380
30
6.3
No OCP
4.35
5.5
250 uA
-40 to 125
8-QFN
bq24381
30
7.1
No OCP
4.35
5
250 uA
-40 to 125
8-QFN
bq24382
30
10.5
No OCP
4.35
5
250 uA
-40 to 125
8-QFN
6/28/2011
Features
Reverse
polarity
protection
Fault
indication
16