Preliminary Datasheet

LP28006

LP28006 – 00 Ver. 1.0 Datasheet

Feb.-2010

www.lowpowersemi.com

Page 1 of 11

Single and Dual Cell Li+ Battery Charger IC –LP28006

General Description

The LP28006 is a fully integrated low cost single-cell

Li-Ion battery charger IC ideal for portable applications.

The LP28006 is capable of being powered up from AC

adapter. The LP28006 enters sleep mode when AC adapter

is removed. The LP28006 optimizes the charging task by

using a control algorithm including preconditioning mode,

fast charge mode and constant voltage mode. The charging

task is terminated as the charge current drops below the

preset threshold. The AC adapter charge current can be

programmed up to 1A with an external resister. The internal

thermal feedback circuitry regulates the die temperature to

optimize the charge rate for all ambient temperatures. The

LP28006 features 18V maximum rating voltages for AC

adapter. The other features are under voltage protection,

over voltage protection for AC adapter supply and battery

temperature monitoring.

Order Information

LP28006 - □ □ □ □ □

F: Pb-Free

Package Type

QV: TDFN-10

Output Voltage

42: 4.2V

84: 8.4V

Applications

Portable Media Players/MP3 players

Cellular and Smart mobile phone

PDA/DSC

Bluetooth Applications

Marking Information

Please see website of LP28006:

www.lowpowersemi.com.

Features

18V Maximum Rating for AC Adapter

Internal Integrate P-MOSFETs

AC Adapter Power Good Status Indicator

Charge Status Indicator

Under Voltage Protection

Over Voltage Protection

Automatic Recharge Feature

Battery Temperature Monitoring

Small 10-Lead WDFN Package

Thermal Feedback Optimizing Charge Rate

RoHS Compliant and 100% Lead (Pb)-Free

Typical Application Circuit