LT4256 LINER [Linear Technology], LT4256 Datasheet - Page 7
LT4256
Manufacturer Part Number
LT4256
Description
UV, OV and Reverse Supply Protection Controller Low Operating Current: 125?A
Manufacturer
LINER [Linear Technology]
Datasheet
1.LT4256.pdf
(16 pages)
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BLOCK DIAGRAM
V
–40V TO 60V
V
UV
OV
IN
OUT
0.5V
–
+
+
–
UVLO
2.2V
LDO
HYSTERESIS
25mV
6.5V INTERNAL
5V INTERNAL
SUPPLY
SUPPLY
SHDN
GND
ENABLE
PROTECTION
DELAY TIMERS
REVERSE
LOGIC
–
+
f = 400kHz
CHARGE
CLOSES SWITCH
WHEN V
PUMP
GATE
FAULT
IN
OFF
IS NEGATIVE
I
GATE
GATE PULLDOWN
50mA
90μA
TURN
OFF
FAULT
SHDN
GATE
4365 BD
LTC4365
7
4365f
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