Current-Limited, High-Side
P-Channel Switches with Thermal Shutdown
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuit, TA = +25°C, unless otherwise noted.)
CURRENT-LIMIT RESPONSE
(MAX891L, RL = 0.8Ω)
CURRENT-LIMIT RESPONSE
(MAX891L, RL = 0.5Ω)
A
5V
5V
A
B
C 0A
0V
2µs/div
CIN = 47µF, COUT = 0.1µF
A: VIN, 500mV/div, AC COUPLED
B: IOUT, 2A/div
C: VOUT, 5V/div
B
0A
C
0V
SWITCH TURN-ON TIME
1µs/div
CIN = 47µF, COUT = 0.1µF
A: VIN, 500mV/div, AC COUPLED
B: IOUT, 2A/div
C: VOUT, 5V/div
A
SWITCH TURN-OFF TIME
B
VIN = 5V, IOUT = ILIM
A: VON, 2V/div
B: VOUT, 2V/div
20µs/div
SWITCH TIMING CHARACTERISTICS
A 0A
A
B
0V
0V
B
0V
VIN = 5V, IOUT = ILIM
A: VON, 2V/div
B: VOUT, 2V/div
2µs/div
C
0V
D
0V
VIN = 5V
A: ILOAD, 0.1A/div
B: VON, 5V/div
50µs/div
C: VOUT, 5V/div
D: VFAULT, 5V/div
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