MAX1693 Datasheet, PDF (5/8 Pages) Maxim Integrated Products – USB Current-Limited Switches with Fault Blanking

USB Current-Limited Switches
with Fault Blanking
Typical Operating Characteristics (continued)
(V_IN = +5V, T_A = +25°C, unless otherwise noted.)
MAX1693
CURRENT-LIMIT AND FAULT RESPONSE
MAX1693
CURRENT-LIMIT RESPONSE
1
1
2
2
3
3
4
2ms/div
CH1 = V_IN, 200mV/div, AC-COUPLED; CH2 = V_OUT,
5V/div; CH3 = V_FAULT, 5V/div; CH4 = I_OUT, 500mA/div
MAX1693
SWITCH TURN-ON TIME
4
10µs/div
CH1 = V_IN, 200mV/div, AC-COUPLED; CH2 = V_OUT,
5V/div; CH3 = V_FAULT, 5V/div; CH4 = I_OUT, 1A/div
MAX1693
SWITCH TURN-OFF TIME
1
1
2
2
3
3
4
4
20µs/div
CH1 = V_OUT, 5V/div; CH2 = V_ON, 5V/div;
CH3 = V_FAULT, 5V/div; CH4 = I_OUT, 200mA/div
MAX1694
OVERCURRENT TO FAULT
AND SWITCH LATCHED OFF
1µs/div
CH1 = V_OUT, 5V/div; CH2 = V_ON, 5V/div;
CH3 = V_FAULT, 5V/div; CH4 = I_OUT, 200mA/div
MAX1693
START-UP TIME
(TYPICAL USB APPLICATION)
1
1
C_L = 150µF
R_L = 15Ω
2
2
FULL-CURRENT LIMIT CHARGES CAPACITOR
3
FOLDBACK-
CURRENT LIMIT
RESISTOR
LOAD
CURRENT
3
4
2ms/div
1ms/div
CH1 = V_FAULT, 5V/div; CH2 = I_OUT, 5V/div;
CH3 = I_OUT, 1A/div
CH1 = V_OUT, 5V/div; CH2 = V_ON, 5V/div;
CH3 = I_OUT, 500mA/div; CH4 = V_FAULT, 5V/div
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