MAX1694EUB 查看數據表（PDF） - Maxim Integrated
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MAX1694EUB Datasheet PDF : 9 Pages
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USB Current-Limited Switches
with Fault Blanking
Typical Operating Characteristics (continued)
(VIN = +5V, TA = +25°C, unless otherwise noted.)
FAULT-BLANKING TIMEOUT
vs. TEMPERATURE
12
10
MAX1693
CURRENT-LIMIT AND FAULT RESPONSE
1
MAX1693
CURRENT-LIMIT RESPONSE
1
8
2
2
6
3
3
4
2 IOUT = 850mA
VIN = 3V OR 5V
0
-40 -20 0 20 40 60
TEMPERATURE (°C)
80 100
4
2ms/div
CH1 = VIN, 200mV/div, AC-COUPLED; CH2 = VOUT,
5V/div; CH3 = VFAULT, 5V/div; CH4 = IOUT, 500mA/div
4
10µs/div
CH1 = VIN, 200mV/div, AC-COUPLED; CH2 = VOUT,
5V/div; CH3 = VFAULT, 5V/div; CH4 = IOUT, 1A/div
MAX1693
SWITCH TURN-ON TIME
1
2
3
4
20µs/div
CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;
CH3 = VFAULT, 5V/div; CH4 = IOUT, 200mA/div
MAX1693
SWITCH TURN-OFF TIME
1
2
3
4
1µs/div
CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;
CH3 = VFAULT, 5V/div; CH4 = IOUT, 200mA/div
MAX1693
STARTUP TIME
(TYPICAL USB APPLICATION)
1
FULL-CURRENT LIMIT
CHARGES CAPACITOR
2
CL = 150µF
RL = 15Ω
3
FOLDBACK-
CURRENT LIMIT
RESISTOR
LOAD
CURRENT
4
1ms/div
CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;
CH3 = IOUT, 500mA/div; CH4 = VFAULT, 5V/div
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