3V to 12V Current-Limiting Hot-Swap Controllers
with Autoretry, DualSpeed/BiLevel Fault Protection
Typical Operating Characteristics (continued)
(V IN = 5V, R SENSE = 100m Ω , C BOARD = 47μF, T A = +25°C, unless otherwise noted.)
FAST GATE DISCHARGE CURRENT
vs. V GATE
GATE CHARGE CURRENT
vs. GATE VOLTAGE
GATE CHARGE CURRENT
vs. TEMPERATURE
1.8
1.6
1.4
1.2
1.0
0.8
V IN = 3V
V IN = 5V
V IN = 12V
120
100
80
60
V IN = 3.0 V
V IN = 12V
V IN = 5.0V
150
125
100
75
V IN = 12V
V IN = 5V
V GATE = 0
0.6
0.4
0.2
0
40
20
0
50
25
0
V IN = 3V
0
2
4
6
8
10 12 14 16 18 20
0
2
4
6
8
10 12 14 16 18 20
-40
-15
10
35
60
85
25
V IN (V)
GATE VOLTAGE vs. INPUT VOLTAGE
400
V GATE (V)
SLOW GATE DISCHARGE CURRENT
vs. GATE VOLTAGE
1000
TEMPERATURE ( ° C)
TIME TO CHARGE GATE
vs. C GATE
20
15
T A = +85 ° C
T A = +25 ° C
I GATE = 10 μ A
350
300
250
V IN = 3V
100
10
NO EXTERNAL MOSFET
V IN = 12V
TO V GATE = 17V
200
1
V IN = 5V
10
5
T A = -40 ° C
150
100
50
V IN = 5V
V IN = 12V
TRIGGERED BY A FAULT
0.1
0.01
TO V GATE = 10V
V IN = 3V
TO V GATE = 6V
OR BY ON FALLING
0
0
2
4
6
8
10
12
14
0
0
2
4
6
8
10 12 14 16 18 20
0.001
0.01
0.1
1
10
100
1000
V IN (V)
FAST GATE DISCHARGE CURRENT
vs. V IN
V GATE (V)
SLOW GATE DISCHARGE CURRENT
vs. TEMPERATURE
C GATE (nF)
TIME TO SLOW DISCHARGE GATE
vs. C GATE
4.0
400
1000
NO EXTERNAL MOSFET
3.5
RISING V IN
350
V IN = 3V
100
DISCHARGE TO V GATE = 0.1V
300
3.0
2.5
250
200
10
1
V IN = 12V
2.0
150
V IN = 5V, 12V
0.1
V IN = 5V
1.5
FALLING V IN
100
50
V GATE = V IN
TRIGGERED BY A FAULT
OR BY ON FALLING
0.01
V IN = 3V
1.0
3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
0
-40
-15
10
35
60
85
0.001
0.01
0.1
1
10
100
1000
V IN (V)
TEMPERATURE ( ° C)
C GATE (nF)
6
_______________________________________________________________________________________
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