lt4351 Linear Technology Corporation, lt4351 Datasheet - Page 20

• Manufacturer Part Number: lt4351
• Description: Mosfet Diode-or Controller
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIO
LT4351
RELATED PARTS
PART NUMBER
LTC1473
LTC4350
LTC4412
PowerPath and ThinSOT are trademarks of Linear Technology Corporation.
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
BATTERY1
BATTERY2
12.6V
12.6V
CHARGER
+
+
+
CHARGER
DESCRIPTION
Dual PowerPath
Hot Swappable Load Sharing Controller
Low Loss PowerPath Controller in ThinSOT
POWER IS SWITCHED TO BATTERY2 WHEN BATTERY1 DROPS TO 11.8V
UV
+
FAULT
100 F
100 F
= 11.8V
MBR0530
MBR0530
10 F
10 F
10 H
TM
10 H
Switch Driver
U
Primary Battery with Secondary Battery Backup
www.linear.com
R2
40.1k
1%
R1
1.07k
1%
120k
5%
1N914
0.1 F
MBR0530
MBR0530
0.1 F
10 F
10 F
1 F
1 F
300k
5%
TM
7
6
4
2
7
6
4
2
1
UV
OV
SW
V
UV
OV
SW
V
V
V
DD
DD
IN
IN
3
1
3
Si4408DY
Si4408DY
LT4351
LT4351
GATE
GND
GND
GATE
1
5
5
1
P-Channel MOSFET, 3V to 28V Range
COMMENTS
Switches and Isolates Sources Up to 30V
Output Voltage 1.2V to 12V, Equal Load Sharing
STATUS
STATUS
FAULT
FAULT
OUT
OUT
10
10
9
8
9
8
4351TA04
OUT
OUT
10 F
10 F
10k
5%
10k
LINEAR TECHNOLOGY CORPORATION 2003
10k
10k
5%
100k
5%
LT/TP 1203 1K • PRINTED IN USA
100 F
LOAD
sn4351 4351fs