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LX2203

TM

廬

Li-Ion Battery Charger

P

RODUCTION

D

ATA

S

HEET

DESCRIPTION

KEY FEATURES

Up to 1A charge current

Low drop out design

Reverse leakage protection

Linear thermal control loop

Pre-charge conditioning

Programmable Termination

Current

Short Circuit protected

Small 3x3mm MLP package

APPLICATIONS

The LX2203 is a tiny linear battery

charger for Lithium Ion or Lithium

Polymer batteries. The LX2203

includes built in MOSFET, accurate

current and voltage regulation, reverse

blocking protection, over temperature

control, and charge status indicator.

The accurate programmable charge

current and independent termination

current programming make it easy to

logically reprogram the charge current

limit at any time.

The LX2203 charges the battery in

two phases: constant current and

constant voltage. A reduced current

conditioning mode is provided for

deeply discharged batteries.

The

LX2203 automatically restarts if the

battery voltage falls below the top-off

threshold. The LX2203 enters a low

quiescent current sleep mode when

power is removed.

WWW .

Microsemi

.C

OM

IMPORTANT:

For the most current data, consult

MICROSEMI鈥檚

website:

http://www.microsemi.com

PDAs, MP3 Players

Cell Phones

Charging cradles

Digital Cameras

PRODUCT HIGHLIGHT

AC/DC Adapter

VIN

VIN

STAT

CTP

GND

BAT

BAT

LX2203

CMP

EN

CCP

+

EN

0

1

MODE

Sleep mode 鈥?charge disabled

Charge enabled.

ON/OFF

PACKAGE ORDER INFO

_

LX2203

LX2203

T

A

(擄C)

-40 to 85

LD

Plastic MLP

10-Pin

RoHS Compliant / Pb-free

LX2203CLD

Note: Available in Tape & Reel. Append the letters 鈥淭R鈥?to the part number. (i.e.

LX2203CLD-TR)

Copyright

漏

2004

Rev. 1.0a, 2005-08-10

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 1

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