MAX1922 Maxim, MAX1922 Datasheet - Page 4

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

1A Current-Limited Switch for 2 USB Ports
(Circuit of Figure 2, V
4
1000
0.01
160
140
120
100
100
0.1
_______________________________________________________________________________________
20
18
16
14
12
10
80
60
40
20
10
8
6
4
2
0
0
1
QUIESCENT CURRENT vs. INPUT VOLTAGE
-40
-40
0 0.5
I
C
I
V
V
OUT
OUT
EN = IN
OUT
TURN-ON TIME vs. TEMPERATURE
OUT
EN
= 0
= 850mA
= 0
= 0.1μF
= 0
1.0 1.5
-15
-15
OFF SWITCH CURRENT
vs. TEMPERATURE
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
2.0 2.5
V
IN
10
10
IN
= 5V
V
= 5V, T
IN
3.0 3.5 4.0 4.5 5.0 5.5
= 3V
35
35
A
= +25°C, unless otherwise noted.)
60
60
85
85
18.0
17.5
17.0
16.5
16.0
15.5
15.0
14.5
14.0
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
-40
-40
QUIESCENT CURRENT vs. TEMPERATURE
-40
I
I
C
OUT
OUT
TURN-OFF TIME vs. TEMPERATURE
I
OUT
OUT
= 0
NORMALIZED ON-RESISTANCE
V
= 850mA
= 0.1μF
= 850mA
IN
-15
-15
-15
= 5V
vs. TEMPERATURE
V
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
V
IN
IN
= 5V
V
10
10
10
= 3V
IN
= 3V
Typical Operating Characteristics
35
35
35
60
60
60
85
85
85
0.01
100
0.1
1.2
1.0
0.8
0.6
0.4
0.2
10
15
14
13
12
11
10
1
0
9
8
7
6
5
-40
-40
0
EN = IN
I
OUT = OPEN
LIMIT
V
SHORT-CIRCUIT CURRENT
I
OUT
IN
0.5
NORMALIZED OUTPUT CURRENT
= 3V OR 5V
(1.75A)
= 1.75A
-15
1.0 1.5
-15
OC BLANKING TIMEOUT
OFF SUPPLY CURRENT
vs. OUTPUT VOLTAGE
vs. TEMPERATURE
vs. TEMPERATURE
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
10
2.0 2.5 3.0 3.5
10
35
35
60
4.0 4.5 5.0
60
85
85