ORing MOSFET Controller with
Ultra-Fast 200ns Turn-Off
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted. See the Typical Operating Circuit.)
FAULT CURRENT WAVEFORM
FAULT CURRENT WAVEFORM
(IN SHORTED TO PGND)
MAX5079 toc10
(IN SHORTED TO PGND)
MAX5079 toc11
1 μ s/div
V IN = 2.75V, V BUS = 2.75V,
V AUXIN = 0V, C STH = 0 μ F,
R STH = OPEN, R FTH = 0,
UVLO = IN
FAULT CURRENT WAVEFORM
MOSFET REVERSE
CURRENT
10A/div
BUS
2V/div
GATE
5V/div
IN
2V/div
400ns/div
V IN = 12V, V BUS = 12V,
V AUXIN = 0V, C STH = 0 μ F,
R STH = OPEN, R FTH = 0,
UVLO = IN
FAULT CURRENT WAVEFORM
MOSFET REVERSE
CURRENT
10A/div
BUS
10V/div
GATE
20V/div
IN
10V/div
(IN SHORTED TO PGND)
MAX5079 toc12
(IN SHORTED TO PGND)
MAX5079 toc13
1 μ s/div
V IN = 1V, V BUS = 1V,
V AUXIN = 5V, C STH = 0 μ F,
R STH = OPEN, R FTH = 0,
UVLO = IN
MOSFET REVERSE
CURRENT
10A/div
BUS
1V/div
GATE
5V/div
IN
1V/div
1 μ s/div
V IN = 5V, V BUS = 5V,
V AUXIN = 5V, C STH = 0 μ F,
R STH = OPEN, R FTH = 0,
UVLO = IN
MOSFET REVERSE
CURRENT
10A/div
BUS
5V/div
GATE
10V/div
IN
5V/div
6
_______________________________________________________________________________________
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