LX2203A Datasheet, PDF (1/11 Pages) Microsemi Corporation – Li-Ion Battery Charger

LX2203A
TM
®
Li-Ion Battery Charger
PRODUCTION DATA SHEET
DESCRIPTION
The Microsemi LX2203A is a tiny The LX2203A charges the battery in
linear battery charger for Lithium Ion two phases: constant current and
or Lithium Polymer batteries. The constant voltage. A reduced current
LX2203A includes built in MOSFET, conditioning mode is provided for
accurate current and voltage regulation, deeply discharged batteries. The
reverse blocking protection, over LX2203A automatically restarts if the
temperature control, and charge status battery voltage falls below the top-off
indicator. The accurate programmable threshold. The LX2203A enters a low
charge current and independent quiescent current sleep mode when
termination current programming power is removed.
make it easy to logically reprogram The LX2203A is backward
the charge current limit at any time. compatible with the LX2203. The
difference is the LX2203A can
terminate charging while using CCP
resistors ranging from 90k to 1.5M and
the LX2203 from 90k to 400k.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
KEY FEATURES
ƒ Up to 1A Charge Current
ƒ Low Drop Out Design
ƒ Reverse Leakage Protection
ƒ Linear Thermal Control Loop
ƒ Pre-Charge Conditioning
ƒ Programmable Termination
Current
ƒ Short Circuit Protected
ƒ Small 3x3mm MLP Package
APPLICATIONS
ƒ PDAs, MP3 Players
ƒ Cell Phones
ƒ Charging Cradles
ƒ Digital Cameras
AC/DC Adapter
VIN
BAT
VIN
BAT
STATLX2203A CMP
CTP
EN
GND
CCP
+
EN
MODE
0
Sleep mode – charge disabled
1
Charge enabled.
ON/OFF
T_A (°C)
-40 to 85
PACKAGE ORDER INFO
Plastic MLP
LD 10-Pin
RoHS Compliant / Pb-free
LX2203AILD
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e.
LX2203AILD-TR)
Copyright © 2004
Rev. 1.0a, 2005-10-21
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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