Datasheet

MAX8535 Typical Operating Characteristics (continued)
(V
CC
= 12V, R
TIMER
= 25kΩ, UVP = 2V, OVP = 1V, C
GATE
= 0.01µF, BUS = 100µF, T
A
= +25°C, unless otherwise specified.)
MAX8535/MAX8536/MAX8585
ORing MOSFET Controllers with Fastest
Fault Isolation for Redundant Power Supplies
_______________________________________________________________________________________ 9
TIMER-ENABLED STARTUP AND SHUTDOWN
WAVEFORMS (V
CC
= 12V, V
BUS
= 12V)
MAX8535/MAX8536 toc07
I
MOSFET
50mA/div
V
CS
10V/div
V
GATE
20V/div
V
TIMER
2V/div
4ms/div
TIMER-ENABLED STARTUP AND SHUTDOWN
WAVEFORMS (V
CC
= 12V, V
BUS
= 0V)
MAX8535/MAX8536 toc08
I
MOSFET
10A/div
V
CS
10V/div
V
GATE
20V/div
V
TIMER
1V/div
4ms/div
REVERSE-CURRENT FAULT WAVEFORM
(R1 = 10Ω)
MAX8535/MAX8536 toc09
I
MOSFET
5A/div
V
FAULT
10V/div
V
GATE
20V/div
V
CS
1V/div
12V
400ns/div
UVP FAULT WAVEFORM
(R1 = 100Ω)
MAX8535/MAX8536 toc10
V
FAULT
10V/div
V
UVP
1V/div
1µs/div
1.25V
V
CS
10V/div
V
GATE
20V/div
SELECTIVE OVP SHUTDOWN WAVEFORM
(R1 = 10
Ω)
MAX8535/MAX8536 toc11
V
FAULT
10V/div
V
GATE1
(OVP UNIT)
20V/div
V
GATE2
(GOOD UNIT)
20V/div
V
CS
1V/div
12V
1µs/div