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2.7V to 18V, 7A, Hot-Swap Solution
Typical Operating Characteristics (continued)
(V IN = 12V, V ON1 = 2V, R CB = 40kω, V ON2 = V PRESDET = 0V, T A = +25°C, unless otherwise noted.)
40
ON-RESISTANCE vs. TEMPERATURE
V IN = 12V
I LOAD = 100mA
TURN-ON WAVEFORM
MAX5976 toc05
V ON1
2V/div
NORMAL TURN-OFF WAVEFORM
MAX5976 toc06
V ON1
2V/div
35
0V
0V
30
25
0V
0V
V OUT
10V/div
V PG
10V/div
0V
0V
V OUT
10V/div
V PG
10V/div
20
-40
-15
10
35
60
85
0A
4ms/div
I LOAD = 5A
I LOAD
5A/div
0A
4ms/div
I LOAD = 5A
I LOAD
5A/div
TEMPERATURE (°C)
FAULT SHUTDOWN WAVEFORM—OVERLOAD
(SLOW TRIP)
MAX5976 toc07
FAULT SHUTDOWN WAVEFORM—SHORT
CIRCUIT
MAX5976 toc08
ON1 RISING/FALLING THRESHOLD VOLTAGE
vs. TEMPERATURE
1.24
0V
V OUT
10V/div
0V
V OUT
10V/div
1.22
1.20
V ON1 RISING
I LOAD
2A/div
I LOAD
10A/div
1.18
0A
0V
V PG
10V/div
0A
0V
V PG
10V/div
1.16
1.14
0V
V FAULT
10V/div
0V
V FAULT
10V/div
1.12
1.10
V ON1 FALLING
2ms/div
4ms/div
-40
-15
10
35
60
85
TEMPERATURE (°C)
PG ASSERTION DELAY
MAX5976 toc10
V ON1
1V/div
0V
AUTORETRY FUNCTIONALITY
MAX5976 toc11
I LOAD = 7A
V OUT
500mV/div
3.0
2.8
2.6
2.4
2.2
CIRCUIT-BREAKER THRESHOLD TIME
vs. OVERCURRENT
V IN = 12V
R CB = 19.9k I
0V
V OUT
5V/div
I LOAD
2A/div
2.0
1.8
1.6
1.4
0V
0V
4ms/div
V PG
5V/div
0V
0V
40ms/div
V FAULT
10V/div
1.2
1.0
0.8
0.6
0.4
0.2
0
0
500
1000
1500
2000
2500
3000
OVERCURRENT (%)
4
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