ACT6357/ACT6358
Rev 1, 15-Nov-12
ELECTRICAL CHARACTERISTICS
(VIN = VEN = 3.3V, TA = 25°C, unless otherwise specified.)
PARAMETER
Power Switch Voltage Rating
Input Voltage
TEST CONDITIONS
MIN TYP MAX UNIT
40
5.5
V
V
2.6
2.1
Under Voltage Lockout Threshold
Under Voltage Lockout Hysteresis
VIN Rising
2.25
80
2.45
V
mV
Not Switching
Switching
EN = G
0.1
0.25
0.5
10
Supply Current
mA
0.25
0.1
Supply Current in Shutdown
Maximum On Time
µA
µs
VIN = 3.3V
2.6
4.0
5.8
Maximum On Time Constant (K)
Minimum Off Time
K = tMAXON × VIN
13.2
320
290
207
106
0.16
0
µs × V
ns
220
275
197
98
450
305
217
114
VBC = 3.3V
FB Feedback Voltage
VBC = 1.25V
mV
VBC = 0.625V
∆VFB/∆VBC Ratio
FB Input Current
BC Input Impedance
V/V
nA
VFB = 1V
200
750
V
BC = 0 to 1.25V
400
500
kΩ
ACT6357
ACT6358
320
620
Switch Current Limit
mA
1000 1500
Switch On Resistance
V
V
V
V
IN = 3.3V
0.55
0.9
10
Ω
µA
V
Switch Leakage Current
Over Voltage Protection Threshold
OV Input Current
SW = 38V, EN = G
OV Rising
1.11
1.4
1.21
0
1.31
200
OV = 1.5V
nA
V
EN Logic High Threshold
EN Logic Low Threshold
EN Input Current
0.4
1
V
VEN = 0V or 5V
0
µA
°C
°C
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
160
20
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