LX2206

Microsemi

Analog Mixed Signal Group

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

Page 1

Copyright

© 2007

Rev. 1.3a, 2007-08-28

Dual Level Lithium Ion Battery Charger

TM

®

DESCRIPTION

The LX2206 can be used with a

wall adapter or USB power source to

charge a single cell Lithium Ion or

Lithium Polymer battery.

There are

two logic selectable and program-

mable charge current levels which can

be set from anywhere between 50mA

to 1A. The termination current is 1/10

the charge level set by the High Level

Programming Current Pin.

Power status indicators (STAT and

DCOK) can be configured to show

charge

in

progress,

battery

fully

charged and external power on. The

STAT pin is capable of sourcing or

sinking 10mA. The DCOK output is

an open drain output.

The LX2206 enters a low quiescent

current sleep mode when power is

removed

or

when

it

is

logically

shutdown to minimize battery drain.

There are several protection features

which include: under voltage lock out,

inrush current limiting, reverse current

blocking on the IN pin, a thermal loop

to reduce charge current to maintain a

low die temperature, an unsafe battery

temperature

charge

inhibitor,

and

conditioning mode is provided for

deeply discharged batteries.

KEY FEATUR ES

Two Independent

Programmable Charge

Currents

0.5% Float Voltage Tolerance

Charging up to 1A.

Charging from USB Port.

USB Current Compliance

Full Battery Indicator

CC/CV w Thermal Feedback

Battery Temperature Monitor

Precision Charge Termination

Power Good Indication

APPLI C ATION S

MP3 Player

PDA

PMC

Digital Camera

Charge Cradle

PRODUCT H I GHLIGHT

DCOK

Adapter or USB

Shutdown

High/Low Charge Current

Current

Programming

Control Logic

Status

Battery

Temperature

Lockout

Sensing

LX2206

IN

BAT

SD

H/L

HCP

TMP

DCOK

STAT

GND

CMP

Charging

Full

Power On

Battery

LCP

PACKAGE ORDER INFO

RoHS Compliant / Pb-free

-40 to 85

LX2206ILD

Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX2206ILD-TR)