Current-Limited Switch for Two USB Ports
ELECTRICAL CHARACTERISTICS
(V = 5V, T = -40°C to +85°C, unless otherwise noted.) (Note 1)
IN
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OPERATING CONDITION
Input Voltage
V
3.0
5.5
V
IN
POWER SWITCH
V
V
= 4.4V to 5.5V
125
150
200
20
IN
IN
Switch Static Drain-Source
On-Resistance
R
m
DS(ON)
= 3V
Switch Turn-On Time
Switch Turn-Off Time
ENABLE INPUT (EN)
t
I
I
= 400mA
= 400mA
µs
µs
ON
LOAD
LOAD
t
1
OFF
V
V
V
V
= 3V to 3.6V
= 3.7V to 5.5V
= 3V to 5.5V
2.0
2.4
IN
IN
IN
EN
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
CURRENT LIMIT
Overload Output Current
Short-Circuit Output Current
SUPPLY CURRENT
I
Force V
to 4.5V
OUT
1.2
2.3
1.5
A
A
LIMIT
I
OUT shorted to GND
SC
Supply Current, Low-Level Input
V
V
V
= V = V
= 5.5V
2
µA
µA
µA
EN
EN
EN
IN
OUT
Supply Current, High-Level Input
I
= GND, I
= 0, timer not running
25
15
Q
OUT
Supply Leakage Current
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout
= V = 5.5V, V
= GND
IN
OUT
UVLO
Rising edge, 100mV hysteresis
2.0
2.9
V
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
Typical Operating Characteristics
(Circuit of Figure 2, V = 5V, T = +25°C, unless otherwise noted.)
IN
A
OFF SUPPLY CURRENT
vs. TEMPERATURE
QUIESCENT CURRENT vs. INPUT VOLTAGE
QUIESCENT CURRENT vs. TEMPERATURE
100
10
20
18
16
14
12
10
8
18.0
17.5
V
= 0
= 0
EN
EN = IN
OUT = OPEN
I
= 0
OUT
I
OUT
17.0
16.5
1
16.0
15.5
15.0
14.5
14.0
V = 5V
IN
V
= 3V
6
IN
0.1
0.01
4
2
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( C)
TEMPERATURE ( C)
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
