LT4351

20

sn4351 4351fs

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

©LINEAR TECHNOLOGY CORPORATION 2003

LT/TP 1203 1K • PRINTED IN USA

PART NUMBER

DESCRIPTION

COMMENTS

LTC1473

Dual PowerPath

Switches and Isolates Sources Up to 30V

LTC4350

Hot Swappable Load Sharing Controller

Output Voltage 1.2V to 12V, Equal Load Sharing

LTC4412

Low Loss PowerPath Controller in ThinSOT

TM

P-Channel MOSFET, 3V to 28V Range

PowerPath and ThinSOT are trademarks of Linear Technology Corporation.

RELATED PARTS

TYPICAL APPLICATIO

GATE

OUT

UV

OV

1

µF

MBR0530

MBR0530

R1

1.07k

1%

10

µH

12.6V

BATTERY1

CHARGER

LT4351

SW

STATUS

5

FAULT

GND

Si4408DY

3

1

Ω

1

Ω

7

6

4

2

110

9

8

R2

40.1k

1%

0.1

µF

10

µF

100

µF

10

µF

10k

5%

10k

5%

OUT

100k

5%

10

µF

+

GATE

OUT

UV

OV

1

µF

MBR0530

MBR0530

300k

5%

10

µH

1N914

12.6V

BATTERY2

CHARGER

LT4351

SW

STATUS

5

FAULT

GND

POWER IS SWITCHED TO BATTERY2 WHEN BATTERY1 DROPS TO 11.8V

Si4408DY

3

7

6

4

2

110

9

8

120k

5%

10

µF

0.1

µF

10

µF

10

µF

10k

4351TA04

OUT

100

µF

10k

LOAD

+

+

100

µF

+

Primary Battery with Secondary Battery Backup