Datasheet

MAX1693/(MAX1693H)/MAX1694
USB Current-Limited Switches
with Fault Blanking
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
IN
= +5V, T
A
= +25°C, unless otherwise noted.)
4
3
2
1
MAX1693H
SWITCH TURN-ON TIME
MAX1693/4 toc16
CH1 = V
OUT
, 5V/div; CH2 = V
ON
, 5V/div;
CH3 = V
FAULT
, 5V/div; CH4 = I
OUT
, 200mA/div
20 s/div
4
3
2
1
MAX1693H
SWITCH TURN-OFF TIME
MAX1693/4 toc17
CH1 = V
OUT
, 5V/div; CH2 = V
ON
, 5V/div;
CH3 = V
FAULT
, 5V/div; CH4 = I
OUT
, 200mA/div
1 s/div
4
3
2
1
MAX1693H
STARTUP TIME
(TYPICAL USB APPLICATION)
MAX1693/4 toc18
CH1 = V
OUT
, 5V/div; CH2 = V
ON
, 5V/div;
CH3 = I
OUT
, 500mA/div; CH4 = V
FAULT
, 5V/div
C
L
= 150µF
R
L
= 15Ω
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 = V
FAULT
, 5V/div; CH2 = I
OUT
, 5V/div;
CH3 = I
OUT
, 1A/div
2ms/div