Rainbow Electronics MAX5079 - Manual (Page 7)

MAX5079
ORing MOSFET Controller with
Ultra-Fast 200ns Turn-Off
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted. See the Typical Operating Circuit.)
FAULT CURRENT WAVEFORM
(IN SHORTED TO PGND)
MAX5079 toc14
V IN = 12V, V BUS = 12V,
V AUXIN = 5V, C STH = 0,
R STH = OPEN, R FTH = 0,
UVLO = IN
BUS
10V/div
IN
10V/div
GATE
20V/div
MOSFET REVERSE
CURRENT
10A/div
1 µs/div
POWER-UP WAVEFORM
MAX5079 toc15
V IN = 5.2V, V BUS = 4.9V,
I BUS = 5A
BUS
2V/div
CXN
10V/div
GATE
10V/div
IN
2V/div
40 µs/div
POWER-UP WAVEFORM
MAX5079 toc16
V
IN
= 12.2V, V
BUS
= 11.9V,
I BUS = 5A
BUS
5V/div
CXN
10V/div
GATE
10V/div
IN
5V/div
20 µs/div
POWER-UP WAVEFORM
MAX5079 toc17
V
IN
= 1.2V, V
BUS
= 1V,
V AUXIN = 5V, I BUS = 5A
BUS
500mV/div
CXN
10V/div
GATE
5V/div
IN
1V/div
20 µs/div