MAX1922 Maxim, MAX1922 Datasheet - Page 2

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

ABSOLUTE MAXIMUM RATINGS
IN, EN, OC to GND...................................................-0.3V to +6V
OUT to GND ................................................-0.3V to (V
Maximum Switch Current.........................2.3A (internally limited)
OUT Short-Circuit to GND ..........................................Continuous
1A Current-Limited Switch for 2 USB Ports
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
2
OPERATING CONDITION
POWER SWITCH
ENABLE INPUT (EN)
CURRENT LIMIT
SUPPLY CURRENT
UNDERVOLTAGE LOCKOUT
OVERCURRENT (OC)
Input Voltage
Switch Static Drain-Source On-
State Resistance
Switch Turn-On Time
Switch Turn-Off Time
EN High-Level Input Voltage
EN Low-Level Input Voltage
EN Input Current
Startup Time
Overload Output Current
Short-Circuit Output Current
Supply Current, Low-Level Input
Supply Current, High-Level
Input
Supply-Leakage Current
Undervoltage Lockout
OC Threshold
OC Output Low Voltage
IN
_______________________________________________________________________________________
= 5V, T
PARAMETER
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
SYMBOL
R
UVLO
DS(ON)
I
t
LIMIT
V
t
V
V
OFF
V
I
ON
I
SC
OL
Q
IN
IH
IL
T
T
I
I
V
V
V
V
V
to 50% full V
Force V
OUT shorted to GND
V
V
V
V
Rising edge, 100mV hysteresis
I
LOAD
LOAD
SINK
A
A
IN
IN
IN
EN
IN
EN
EN
EN
OUT
= +25°C
= 0°C to +85°C
= 2.7V to 3.6V
= 3.7V to 5.5V
= 2.7V to 5.5V
= 5V, C
IN
= V
= V
= 0, I
= V
= 1mA, V
= 0
= 400mA
= 400mA
+ 0.3V)
OUT
IN
IN
IN
OUT
or GND
= V
= 5.5V,
OUT
OUT
to 4.5V
OUT
= 0
IN
CONDITIONS
= 150µF from EN driven low
= 3V
= 5.5V
Continuous Power Dissipation (T
Operating Temperature Range (extended) .........-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
10-Pin TDFN (derate 18.5mW/°C above +70°C) .......1481mW
V
V
V
Timer not running
Timer running
T
T
A
A
IN
IN
IN
= +25°C
= 0°C to +85°C
= 4.4V to 5.5V
= 4.4V to 5.5V
= 3V
A
= +25°C.)
MIN
2.7
2.0
2.4
1.4
2.0
1.1
-1
3
A
= +70°C)
0.002
TYP
1.75
0.01
2.4
70
72
80
16
35
6
1
1
MAX
100
125
150
200
5.5
0.8
2.1
1.4
2.6
0.4
20
25
15
1
1
2
UNITS
mΩ
ms
µA
µA
µA
µA
µs
µs
V
V
V
A
A
V
A
V