MAX1922 Maxim, MAX1922 Datasheet - Page 5

• Manufacturer Part Number: MAX1922
• Description: The MAX1922 current-limited 70mΩ switch with built-in fault blanking provides an accurate, preset 1
• Manufacturer: Maxim

(Circuit of Figure 2, V
5V
5V
1A Current-Limited Switch for 2 USB Ports
0
0
0
0
0
0
CURRENT-LIMIT AND OC RESPONSE
_______________________________________________________________________________________
IN
= 5V, T
SWITCH TURN-ON TIME
A
20μs/div
2ms/div
= +25°C, unless otherwise noted.)
MAX1922 toc12
MAX1922 toc10
5V
Typical Operating Characteristics (continued)
0
0
0
V
100mV/div
V
V
I
V
V
V
I
500mA/div
OUT
OUT
IN
OUT
OC
OUT
EN
OC
FULL CURRENT LIMIT CHARGES CAPACITOR
, 5V/div
AC-COUPLED
, 5V/div
, 5V/div
,
, 1A/div
, 5V/div
, 5V/div
(TYPICAL USB APPLICATION)
SHORT-CIRCUIT
CURRENT LIMIT
STARTUP TIME
RESISTOR LOAD CURRENT
1ms/div
MAX1922 toc14
5V
5V
5V
0
0
0
0
0
I
V
V
V
IN
OC
OUT
EN
1A/div
CURRENT-LIMIT RESPONSE
5V/div
5A/div
5V/div
SWITCH TURN-OFF TIME
4μs/div
1μs/div
MAX1922 toc11
MAX1922 toc13
V
500mV/div
V
V
I
V
V
V
I
500mA/div
OUT
OUT
IN
OUT
OC
OUT
EN
OC
AC-COUPLED
, 5V/div
, 5V/div
, 5V/div
, 2A/div
,
, 5V/div
, 5V/div
5