Advanced Power
Electronics Corp.
APE8935
ULTRA- LOW ON RESISTANCE, 6A LOAD SWITCH
WITH CONTROLLED TURN-ON
FEATURES
DESCRIPTION
▓
Integrated 6A Single Channel Load Switch
The APE8935 is a small, ultra-low RON load switch
▓
Input Voltage Range: 0.8V to 5.5V
with controlled turn on. It contains one N-channel
▓
Ultra-low ON-Resistance RON = 4.5mΩ
MOSFET that can operate over an input voltage
(VBAIS=5V, VIN=1.05V)
range of 0.8V to 5.5V and support maximum
▓
Low Threshold Control Input
continuous current up to 6A. The switch is controlled
▓
Quick Output Discharge Transistor
by an on/off input (EN), which is capable of
▓
Halogen Free Product
interfacing directly with low-voltage control signals.
Additional features include a 330Ω on-chip load
APPLICATIONS
▓
Telecom Systems
▓
Industrial Systems
▓
Consumer Electronics
▓
Notebooks / Netbooks
resistor is added for output quick discharge when
switch is turned off.
The APE8935 is available in 8-pin DFN 3x3-8L
package with smallest components.
TYPICAL APPLICATION
+5V / +3.3V
VBIAS
VIN
VIN
CIN
1uF
VOUT
COUT
0.1uF
APE8935
EN
Data and specifications subject to change without notice
VOUT
GND
1
20140113V1.0
Advanced Power
Electronics Corp.
APE8935
ORDERING / PACKAGE INFORMATION
Top View
DFN 3x3-8L
APE8935X
Package Type
GN3: DFN 3x3-8L
VIN
1
VIN
2
VBIAS
3
EN
4
Exposed
Pad
VIN
8
VOUT
7
VOUT
6
VOUT
5
GND
ABSOLUTE MAXIMUM RATINGS (at TA=25°C)
VIN
-0.3V to 6V
VOUT
VIN+0.3V
EN
-0.3V to 6V
VBIAS
-0.3 to 6V
IMAX
6A
Storage Temperature Range (TST)
-65 to +150°C
Junction Temperature (TJ)
150°C
Lead Temperature (Soldering, 10sec.)
260°C
Thermal Resistance from Junction to Ambient (RθJA)
DFN 3x3-8L
43°C/W
RECOMMENDED OPERATING CONDITIONS
VIN
0.8V to 5.5V
VBIAS
2.5V to 5.5V (VBIAS≧VIN)
VOUT
.
VIN
CIN
≧0.1uF
Junction Temperature (TJ)
125°C
Operating Temperature Range
-40°C to 85°C
2
Advanced Power
Electronics Corp.
APE8935
ELECTRICAL SPECIFICATIONS
(VIN=0.8V to 5.5V, VBIAS=5V, CIN=1uF, COUT=0.1uF, TA =25°C, unless otherwise specified)
PARAMETER
Quiescent Current
Shutdown Current
SYM
IBIAS
ISD
TEST CONDITION
MIN
TYP
MAX
UNIT
VBIAS=VEN=5V, VIN=1.05V, IOUT=0A
30
50
uA
VBIAS=VEN=5V, VIN=1.5V, IOUT=0A
30
50
uA
1
uA
VEN=GND
VBIAS=VEN=5V,
TA=25°C
4.5
5
VIN=1.05V,
mΩ
(NOTE1)
ON Resistance(Note1)
RON
IOUT=200mA
-40~85°C
5.5
6
VBIAS=VEN=5V,
TA=25°C
4.5
5
-40~85°C(NOTE1)
5.5
6
330
400
Ω
1
uA
VIN=1.5V,
IOUT=200mA
Output Pull-Down Resistance
EN Input Leakage Current
mΩ
ROPD VIN=5V, VEN=0V
IEN
VEN=5V or GND
VIH
on
VIL
off
1.3
V
EN Threshold
0.5
V
Note1: Make sure VBAIS≧VIN for optimum RON performance.
3
Advanced Power
Electronics Corp.
APE8935
SWITCHING SPECIFICATIONS
VBIAS
VBIAS
VIN
VIN
APE8935
CIN
1uF
VOUT
VOUT
VEN
COUT
0.1uF
EN
RL
GND
Fig.1 Test Circuit
VEN
tON
tOFF
90%
90%
50%
50%
10%
10%
1%
VOUT
tD -ON
tR
tF
Fig.2 ON/OFF Waveforms
PARAMETER
Turn-on Time
Turn-off Time
VOUT Rise Time
VOUT Fall Time
VOUT Turn-on Delay Time
SYM
tON
tOFF
tR
tF
tD-ON
TEST CONDITION
MIN
TYP
MAX
UNIT
VBIAS=VEN=5V,
VIN=1.05V
905
us
RL=10Ω
VIN=1.5V
940
us
VBIAS=VEN=5V,
VIN=1.05V
5.4
us
RL=10Ω
VIN=1.5V
5.2
us
VBIAS=VEN=5V,
VIN=1.05V
308
440
572
us
RL=10Ω
VIN=1.5V
381
545
708
us
VBIAS=VEN=5V,
VIN=1.05V
1.7
us
RL=10Ω
VIN=1.5V
1.8
us
VBIAS=VEN=5V,
VIN=1.05V
388
555
721
us
RL=10Ω
VIN=1.5V
381
545
708
us
4
Advanced Power
Electronics Corp.
APE8935
SWITCHING SPECIFICATIONS (Continued)
PARAMETER
Turn-on Time
Turn-off Time
VOUT Rise Time
VOUT Fall Time
VOUT Turn-on Delay Time
SYM
tON
tOFF
tR
tF
tD-ON
TEST CONDITION
MIN
TYP
MAX
UNIT
VBIAS=VEN=5V,
VIN=1.05V
1345
us
IOUT=6A
VIN=1.5V
1480
us
VBIAS=VEN=5V,
VIN=1.05V
4.8
us
IOUT=6A
VIN=1.5V
4.8
us
VBIAS=VEN=5V,
VIN=1.05V
602
860
1118
us
IOUT=6A
VIN=1.5V
616
880
1144
us
VBIAS=VEN=5V,
VIN=1.05V
0.5
us
IOUT=6A
VIN=1.5V
0.7
us
VBIAS=VEN=5V,
VIN=1.05V
497
710
923
us
IOUT=6A
VIN=1.5V
495
708
920
us
5
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Electronics Corp.
APE8935
PIN DESCRIPTIONS
PIN No.
PIN SYMBOL
1, 2
VIN
3
VBIAS
4
EN
5
GND
Ground
6, 7, 8
VOUT
Switch output
Exposed
pad
VIN
PIN DESCRIPTION
Input Power Supply
Bias Voltage
Switch control input, active high. Do not leave floating.
Input Power Supply
BLOCK DIAGRAM
VBIAS
VIN
Oscillator
Charge Pump
VOUT
Control
Logic
Output Discharge
EN
GND
6
Advanced Power
Electronics Corp.
APE8935
TYPICAL PERFORMANCE CHARACTERISTICS
Condition: VBIAS=VEN=5V, RL=10Ω, Cin=1uF, Cout=0.1uF, ch1:EN, ch2:VOUT, ch4:IIN
Fig.1 Waveform for tD-ON, VIN=1.05V
Fig.2 Waveform for tD-ON, VIN=1.5V
Fig.3 Waveform for tON and tR, VIN=1.05V
Fig.4 Waveform for tON and tR, VIN=1.5V
Fig.5 Waveform for tOFF and tF, VIN=1.05V
Fig.6 Waveform for tOFF and tF, VIN=1.5V
7
Advanced Power
Electronics Corp.
APE8935
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Condition: VBIAS=VEN=5V, IOUT=6A, Cin=1uF, Cout=0.1uF, ch1:EN, ch2:VOUT, ch4:IIN
Fig.7 Waveform for tD-ON, VIN=1.05V
Fig.8 Waveform for tD-ON, VIN=1.5V
Fig.9 Waveform for tON and tR, VIN=1.05V
Fig.10 Waveform for tON and tR, VIN=1.5V
Fig.11 Waveform for tOFF and tF, VIN=1.05V
Fig.12 Waveform for tOFF and tF, VIN=1.5V
8
Advanced Power
Electronics Corp.
APE8935
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
2500
10
Cin=1uF, Cout=0.1uF, RL=10Ω
9
2000
8
1750
7
1500
6
tOFF (us)
tON (us)
2250
1250
1000
Cin=1uF, Cout=0.1uF, RL=10Ω
5
4
750
3
500
2
VBIAS=3.3V
250
VBIAS=3.3V
1
VBIAS=5.0V
0
VBIAS=5.0V
0
0.8
1.4
2.0
2.6 3.2
VIN (V)
3.8
4.4
5.0
0.8
1.4
2.0
Fig.13 tON vs. VIN
3500
2.6
3.2
3.8
VIN (V)
4.4
5.0
Fig.14 tOFF vs. VIN
10
Cin=1uF, Cout=0.1uF, RL=10Ω
Cin=1uF, Cout=0.1uF, RL=10Ω
9
3000
8
2500
7
6
tR (us)
tF (us)
2000
1500
5
4
3
1000
2
VBIAS=3.3V
500
VBIAS=3.3V
1
VBIAS=5.0V
0
VBIAS=5.0V
0
0.8
1.4
2.0
2.6 3.2
VIN (V)
3.8
4.4
5.0
0.8
1.4
2.0
Fig.15 tR vs. VIN
1100
3.2
3.8
VIN (V)
4.4
5.0
Fig.16 tF vs. VIN
5.4
Cin=1uF, Cout=0.1uF, RL=10Ω
1000
5.3
900
5.2
800
Io=200mA
VBIAS=3.3V
VBIAS=5.0V
5.1
700
5.0
RON (mΩ)
tD-ON (us)
2.6
600
4.9
500
4.8
400
4.7
300
200
VBIAS=3.3V
100
VBIAS=5.0V
0
4.6
4.5
4.4
0.8
1.4
2.0
2.6
3.2
VIN (V)
3.8
Fig.17 tD-ON vs. VIN
4.4
5.0
0.8
1.4
2.0
2.6
3.2
VIN (V)
3.8
4.4
5.0
Fig.18 RON vs. VIN
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Advanced Power
Electronics Corp.
APE8935
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
8.0
8.0
VBIAS=VIN=5V
7.5
VBIAS=VIN=3.3V
7.0
VBIAS=5V, VIN=1.05V
6.5
6.5
6.0
6.0
RDS-ON (mΩ)
RDS-ON (mΩ)
7.0
VBIAS=VIN=5V
7.5
VBIAS=VIN=3.3V
5.5
5.0
4.5
4.0
VBIAS=5V, VIN=1.05V
5.5
5.0
4.5
4.0
3.5
3.5
Io=200mA
Io=6A
3.0
3.0
-40 -20
0
20 40 60
TJ (°C)
80
100 120
-40
0
20
TA (°C)
40
60
80
Fig.20 RON vs. Temperature
50
1
45
0.9
VIN=VBIAS=5V
40
0.8
VIN=VBIAS=3.3V
35
0.7
30
0.6
ISD (uA)
IBIAS (uA)
Fig.19 RON vs. Temperature
-20
25
20
15
0.5
0.4
0.3
10
5
VIN=VBIAS=5V
0.2
VIN=VBIAS=3.3V
0.1
0
0
-40
-20
0
20
40 60
TJ (°C)
80
100 120
Fig.21 Quiescent Current vs. Temperature
-40
-20
0
20
40 60
TJ (°C)
80
100 120
Fig.22 Shutdown Current vs. Temperature
2.0
1.8
1.6
VEN (V)
1.4
1.2
1.0
0.8
0.6
0.4
VEN-H
0.2
VEN-L
0.0
-40
-20
0
20
40
60
80
TJ (°C)
Fig.23 EN Threshold vs. Temperature
10
Advanced Power
Electronics Corp.
APE8935
APPLICATION INFORMATION
On/Off Control
The load switch is controlled by the EN pin. The EN pin is active high and has a low threshold making it
capable of interfacing with low voltage signals. The EN pin can be used with standard 1.5V, 1.8V, 2.5V or 3.3V
GPIO logic threshold. Do not leave the EN pin float.
Input Capacitor
An input capacitor is recommended to be placed between VIN and GND to limit the voltage drop on the input
supply during high current application.
Output Capacitor
Setting a CIN greater than the COUT is highly recommended. Since the internal body diode is in the NMOS
switch, this prevents the current flows through the body diode from VOUT to VIN when the system supply is
removed.
Layout Considerations
Follow the below guidelines for PCB layout to achieve stable operation. Take below figure for reference.
1. Keep the high current paths (VIN, VOUT and GND) wide and short to obtain the best effect.
2. The input and output capacitors should be close to the device as possible to minimize the parasitic trace
inductances.
3. Place the thermal vias under the exposed pad. This help for thermal diffusion away from the device.
Fig.24 Reference layout
11
Advanced Power
Electronics Corp.
APE8935
MARKING INFORMATION
DFN 3x3-8L
Part Number
Package Code
8935GN3
YWWSSS
Date Code (YWWSSS)
Y : Year
WW : Week
SSS : Sequence
12