MP26023

28V, 1A Linear

Li-Ion Battery Charger with Trickle Charge

MP26023 Rev.0.9

www.MonolithicPower.com

1

12/14/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2009 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP26023 is a linear, high-performance

single cell Li-Ion battery charger. By integrating

high voltage input protection into the charger

IC, the MP26023 can tolerate an input surge up

to 28V.

The device features constant current (CC) and

constant voltage (CV) charging modes with

programmable charge currents (85mA to 1A),

programmable battery full threshold, thermal

protection, battery temperature monitoring,

reverse current blocking and trickle charge. The

device also provides AC adapter power good

and charge status indications to the system.

MP26023 is available in 10-pin 3mm x 3mm

QFN packages.

FEATURES

• Input Surge Up to 28V

• Adapter or USB Input

• Programmable Charge Current: 85mA to 1A

• Proprietary Constant Voltage Auto Recharge

• Proprietary Over-Voltage Protection

• <1µA Battery Reverse Current

• Battery Temperature Monitoring

• Over Current Protection

• AC Adapter Power Good Indicator

• Charge Status Indicator

• Programmable Soft-Start

• Programmable Charge Termination Current

Threshold

• Tiny 3mm x 3mm QFN Package

APPLICATIONS

• Cell Phones

• MP3 Players

• Smart Phones

• PDAs

• Digital Cameras

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP26023

BATT

ISET

IBF

SS

GND

10

9

8

7

6

IN

CHG

ACOK

EN

NTC

1

2

3

4

5

1uF

430

Ω

R1

500k

Ω

430

Ω

100k

Ω

0.1uF

1uF - 22uF

To system

+

_

20k

Ω

2.3k

Ω

3.5V - 28V

OFF

ON