Datasheet

MAX5976A/MAX5976B
2.7V to 18V, 7A, Hot-Swap Solution
4
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.)
ON-RESISTANCE vs. TEMPERATURE
MAX5976 toc04
TEMPERATURE (°C)
ON-RESISTANCE (mI)
603510-15
25
30
35
40
20
-40 85
V
IN
= 12V
I
LOAD
= 100mA
TURN-ON WAVEFORM
MAX5976 toc05
V
ON1
2V/div
V
OUT
10V/div
V
PG
10V/div
I
LOAD
5A/div
0A
0V
0V
0V
4ms/div
I
LOAD
= 5A
NORMAL TURN-OFF WAVEFORM
MAX5976 toc06
V
ON1
2V/div
V
OUT
10V/div
V
PG
10V/div
I
LOAD
5A/div
0A
0V
0V
0V
4ms/div
I
LOAD
= 5A
FAULT SHUTDOWN WAVEFORM—OVERLOAD
(SLOW TRIP)
MAX5976 toc07
V
OUT
10V/div
V
FAULT
10V/div
V
PG
10V/div
I
LOAD
2A/div
0V
0V
0A
0V
2ms/div
FAULT SHUTDOWN WAVEFORM—SHORT
CIRCUIT
MAX5976 toc08
V
OUT
10V/div
V
FAULT
10V/div
V
PG
10V/div
I
LOAD
10A/div
0V
0V
0A
0V
4ms/div
ON1 RISING/FALLING THRESHOLD VOLTAGE
vs. TEMPERATURE
MAX5976 toc09
TEMPERATURE (°C)
V
ON1
RISING/FALLING THRESHOLD VOLTAGE
603510-15
1.12
1.14
1.16
1.18
1.20
1.22
1.24
1.10
-40 85
V
ON1
RISING
V
ON1
FALLING
PG ASSERTION DELAY
MAX5976 toc10
V
ON1
1V/div
V
OUT
5V/div
V
PG
5V/div
0V
0V
0V
4ms/div
AUTORETRY FUNCTIONALITY
MAX5976 toc11
V
OUT
500mV/div
0V
0V
0V
40ms/div
I
LOAD
2A/div
V
FAULT
10V/div
I
LOAD
= 7A
CIRCUIT-BREAKER THRESHOLD TIME
vs. OVERCURRENT
MAX5976 toc12
OVERCURRENT (%)
CIRCUIT-BREAKER THRESHOLD TIME (ms)
2500200015001000500
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
0
0 3000
V
IN
= 12V
R
CB
= 19.9kI