ltc4350 Linear Technology Corporation, ltc4350 Datasheet - Page 14

• Manufacturer Part Number: ltc4350
• Description: Hot Swappable Load Share Controller
• Manufacturer: Linear Technology Corporation

APPLICATIO S I FOR ATIO
LTC4350
14
LOAD
–48V RTN
–48V
–48V RTN
–48V RTN
3.3V
STATUS
3.3V
STATUS
–48V
–48V
GND
GND
OUT
OUT
U
SB
SB
CONNECTOR
CONNECTOR
U
RTN
–48V
RTN
–48V
W
UV
OV
UV
OV
3
3
V
V
Figure 7. – 48V to 3.3V Hot Swap Power Supply
1
1
EE
EE
LT4250L
LT4250L
SENSE
SENSE
V
V
DD
DD
2
2
4
4
U
PWRGD
PWRGD
GATE
GATE
DRAIN
DRAIN
POWER SUPPLY 1
POWER SUPPLY 2
V
ON/OFF
V
V
ON/OFF
V
IN
IN
IN
IN
+
–
+
–
SENSE
SENSE
SENSE
SENSE
OUT
OUT
OUT
OUT
+
+
–
–
+
+
–
–
C
C
UV
UV
R
R
R
R
R
R
OUT
OUT
GAIN
GAIN
SET
SET
I
R
GAIN
GND
UV
OV
I
R
GAIN
GND
UV
OV
OUT
OUT
V
SET
V
SET
CC
CC
LTC4350
LTC4350
COMP2
COMP2
STATUS
STATUS
COMP1
COMP1
TIMER
TIMER
R
R
GATE
GATE
P2
P2
C
C
SB
P2
SB
P2
R
R
FB
R
R
FB
R
R
+
–
+
–
G
G
C
C
C
C
C
C
G
T
P1
G
T
P1
3
3
1
1
R
R
SENSE
SENSE
2
2
4
4
4350fa
3.3V
3.3V
4350 F07