Current-Limited Switch for Two USB Ports
ABSOLUTE MAXIMUM RATINGS
IN, EN to GND ..........................................................-0.3V to +6V
Continuous Power Dissipation (T = +70°C)
A
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
Operating Temperature Range (extended).........-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
OUT to GND ................................................-0.3V to (V + 0.3V)
Maximum Switch Current.........................2.3A (internally limited)
OUT Short Circuit to GND ..........................................Continuous
IN
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 = 5V, T = 0°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.)
IN
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OPERATING CONDITION
Input Voltage
V
2.7
5.5
V
IN
POWER SWITCH
T
T
= +25°C
V
V
V
= 4.4V to 5.5V
= 4.4V to 5.5V
= 3V
70
100
125
150
200
20
A
A
IN
IN
IN
Switch Static Drain-Source
On-Resistance
R
m
DS(ON)
= 0°C to +85°C
72
80
6
Switch Turn-On Time
Switch Turn-Off Time
ENABLE INPUT (EN)
t
I
I
= 400mA
= 400mA
µs
µs
ON
LOAD
LOAD
t
3
OFF
V
V
V
V
V
= 2.7V to 3.6V
= 3.7V to 5.5V
= 2.7V to 5.5V
2.0
2.4
IN
IN
IN
EN
IN
EN High-Level Input Voltage
V
V
IH
EN Low-Level Input Voltage
EN Input Current
V
0.8
+1
V
IL
= V or GND
-1
µA
IN
= 5V, C
= 150µF from EN driven low
OUT
Startup Time
1
ms
to 50% full V
OUT
CURRENT LIMIT
Overload Output Current
Short-Circuit Output Current
SUPPLY CURRENT
I
Force V
to 4.5V
OUT
1.2
1.75
1
2.3
1.5
A
A
LIMIT
I
OUT shorted to GND
SC
Supply Current, Low-Level Input
V
V
= V = V
= 5.5V
0.002
16
1
µA
µA
EN
EN
IN
OUT
= 0
Timer not running
Timer running
25
Supply Current, High-Level Input
Supply Leakage Current
I
= 0, I
OUT
Q
35
T
T
= +25°C
0.01
2
A
A
V
V
= V = 5.5V,
IN
EN
µA
= 0
OUT
= 0°C to +85°C
15
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout
UVLO
Rising edge, 100mV hysteresis
2.0
2.4
2.6
V
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
165
°C
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
