
MAX1693/(MAX1693H)/MAX1694
USB Current-Limited Switches
with Fault Blanking
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VIN = +5V, TA = +25°C, unless otherwise noted.)
4
3
2
1
MAX1693H
SWITCH TURN-ON TIME
MAX1693/4
toc16
CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;
CH3 = VFAULT, 5V/div; CH4 = IOUT, 200mA/div
20
ms/div
4
3
2
1
MAX1693H
SWITCH TURN-OFF TIME
MAX1693/4
toc17
CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;
CH3 = VFAULT, 5V/div; CH4 = IOUT, 200mA/div
1
ms/div
4
3
2
1
MAX1693H
STARTUP TIME
(TYPICAL USB APPLICATION)
MAX1693/4
toc18
CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;
CH3 = IOUT, 500mA/div; CH4 = VFAULT, 5V/div
CL = 150
F
RL = 15
1ms/div
FULL-CURRENT LIMIT
CHARGES CAPACITOR
RESISTOR
LOAD
CURRENT
FOLDBACK-
CURRENT LIMIT
3
2
1
MAX1693/4
toc15
MAX1694
OVERCURRENT TO FAULT
AND SWITCH LATCHED OFF
CH1 = VFAULT, 5V/div; CH2 = IOUT, 5V/div;
CH3 = IOUT, 1A/div
2ms/div