Datasheet

LT4256-3
9
42563fa
TEST CIRCUIT
TI I G DIAGRA S
WUW
Figure 2. UV to GATE Timing
Figure 3. V
OUT
to PWRGD Timing
Figure 4. SENSE to GATE Timing
Figure 1
V
CC
SENSE
GATE
V
OUT
TIMER
RETRY
PWRGD
OPEN
FB
OV
UV
48V
GND
3V
3V
4256 F01
100pF
+
–
+
–
+
–
48V
+
–
UV
4256 F02
GATE
V
OUT
+2V
t
PLHUV
4V
V
OUT
+2V
t
PHLUV
3.6V
V
CC
– SENSE
4256 F04
GATE
V
CC
t
PHLSENSE
55mV
FB
4256 F03
PWRGD
1V
t
PLHFB
4.45V
1V
t
PHLFB
3.99V