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LTC4078XEDD

Dual Input Li-Ion Battery Charger with Overvoltage Protection

Linear Technology 

LTC4078/LTC4078X

TYPICAL APPLICATION

WALL

ADAPTER

USB

POWER

1μF

2.1k

1%

Full Featured Li-Ion Charger

LTC4078

DCIN

BAT

USBIN

1k

1μF

IUSB

PWR

CHRG

BATDET

IDC

ITERM

1.24k

GND

1k

1%

1%

800mA (WALL)

475mA (USB)

1k

+

3.9k

4.2V Li-Ion

BATTERY

PACK

4078X TA02

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ThinSOT and PowerPath are trademarks of Linear Technology Corporation.

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

4078xfb

LT 0308 REV B • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2007

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