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
(IN SHORTED TO PGND)
1 μ s/div
V IN = 12V, V BUS = 12V,
V AUXIN = 5V, C STH = 0,
R STH = OPEN, R FTH = 0,
UVLO = IN
MAX5079 toc14
MOSFET REVERSE
CURRENT
10A/div
BUS
10V/div
GATE
20V/div
IN
10V/div
POWER-UP WAVEFORM
MAX5079 toc15
40 μ s/div
V IN = 5.2V, V BUS = 4.9V,
I BUS = 5A
IN
2V/div
BUS
2V/div
GATE
10V/div
CXN
10V/div
POWER-UP WAVEFORM
MAX5079 toc16
20 μ s/div
V IN = 12.2V, V BUS = 11.9V,
I BUS = 5A
IN
5V/div
BUS
5V/div
GATE
10V/div
CXN
10V/div
POWER-UP WAVEFORM
MAX5079 toc17
20 μ s/div
V IN = 1.2V, V BUS = 1V,
V AUXIN = 5V, I BUS = 5A
IN
1V/div
BUS
500mV/div
GATE
5V/div
CXN
10V/div
_______________________________________________________________________________________
7
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