MIC2592B
Micrel
Functional Characteristics
Turn-On Response
ON
(5V/div.)
GATE Output Turn-On Response
V
AUX
(2V/div.)
/PWRGD
(5V/div.)
3V
OUT
(2V/div.)
12V
OUT
(5V/div.)
12VGATE
(5V/div.)
3VGATE
(5V/div.)
Slot A
TIME (2.5ms/div.)
Slot A
TIME (5ms/div.)
3V Overcurrent Fault Response
/FAULT
(5V/div.)
/FAULT
(5V/div.)
12V Overcurrent Fault Response
I
OUT(3V)
(2A/div.)
CFILTER
(1V/div.)
R
LOAD
= 0.4Ω
Slot A
TIME (5ms/div.)
12V
OUT
I
OUT(12V)
(5V/div.) (1A/div.)
3V
OUT
(2V/div.)
CFILTER
(1V/div.)
R
LOAD
= 3.3Ω
Slot A
TIME (5ms/div.)
Auxiliary Overcurrent Fault Response
CFILTERB /FAULTB
(1V/div.) (5V/div.)
CFILTERA /FAULTB /FAULTA
(1V/div.) (1V/div.) (5V/div.)
Overcurrent Fault Response
Channel Independent
I
AUXB
(500mA/div.)
VAUXA
(2V/div.)
I
OUT(12V)
(1A/div.)
R
LOAD
= 3.3Ω
Overcurrent on Slot B
TIME (5ms/div.)
R
LOAD
= 3.3Ω
Overcurrent on Slot A, 12V Supply
TIME (5ms/div.)
March 2005
13
M9999-033105
MICREL [ MICREL SEMICONDUCTOR ]
