Datasheet

LTC4350
15
4350fb
applicaTions inForMaTion
4
3
21
R
GAIN
R
SET
GAIN
R
SET
I
OUT
R
+
R
–
FB
TIMER
C
T
STATUS
SB
COMP1
V
CC
GATE
GND
COMP2
LTC4350
UV
OV
C
P1
C
P2
R
P2
C
G
R
G
R
SENSE
R
OUT
RTN–48V RTN–48V RTN
–48V
LOAD
–48V
GND
SB
STATUS
3.3V
OUT
–48V
CONNECTOR
4350 F07
3.3V
POWER SUPPLY 1
OUT
+
V
IN
+
V
IN
–
V
DD
LT4250L
DRAIN
OV
UV
GATESENSEV
EE
SENSE
+
SENSE
–
OUT
–
43
21
4
3
21
R
GAIN
R
SET
GAIN
R
SET
I
OUT
R
+
R
–
FB
TIMER
C
T
STATUS
SB
COMP1
V
CC
GATE
GND
COMP2
LTC4350
UV
OV
C
P1
C
P2
R
P2
C
G
R
G
R
SENSE
R
OUT
RTN–48V RTN
–48V
GND
SB
STATUS
3.3V
OUT
–48V
CONNECTOR
3.3V
POWER SUPPLY 2
OUT
+
V
IN
+
V
IN
–
ON/OFF
PWRGD
V
DD
LT4250L
DRAIN
OV
UV
GATESENSEV
EE
SENSE
+
SENSE
–
OUT
–
43
21
C
UV
C
UV
ON/OFF
PWRGD
Figure 7. –48V to 3.3V Hot Swap Power Supply