ZSPM4521

High-Efficiency Charger for Li-Ion Batteries with Photovoltaic Sources

© 2013 Zentrum Mikroelektronik Dresden AG

— Rev. 1.00— February 14, 2013

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.

Typical Applications

networks

VIN

BATT Current

Control

Gate

Drive

Gate

Drive

Gate Drive

Control

VBAT

SW

Oscillator

Ramp

Generator

Comparator

Error Amp

GND

MONITOR

&

CONTROL

BATT Thermal

Control

Over-

Voltage

Protection

VBAT

VIN

VIN



EN

PGND

NFLT

BATTERY

Compensation

Network

VTH_REF

VTHERM

Photovoltaic

Cells

~5V @ 450mA

Vref

VBAT

VSENSE

MPP & Current

Control

SCL

SDA

VIN

VDD

VDD Regulator

VIN

Backgate

Blocking

ZSPM4521

I²C

™*

Interface

*I

ZSPM4521 Block Diagram

Ordering Information

Ordering Code

Description

Package

ZSPM4521AA1W

ZSPM4521 High Efficiency Li-Ion Battery Charger for

Photovoltaic Sources

16-

pin PQFN / 7” Reel (1000 parts)

ZSPM4521AA1R

ZSPM4521 High Efficiency Li-Ion Battery Charger for

Photovoltaic Sources

16-

pin PQFN / 13” Reel (3300 parts)

ZSPM4521KIT

ZSPM4521 Evaluation Kit

Sales and Further Information

www.zmdi.com

Analog@zmdi.com

Zentrum Mikroelektronik

Dresden AG

Grenzstrasse 28

01109 Dresden

Germany

ZMD America, Inc.

1525 McCarthy Blvd., #212

Milpitas, CA 95035-7453

USA

Zentrum Mikroelektronik

Dresden AG, Japan Office

2nd Floor, Shinbashi Tokyu Bldg.

4-21-3, Shinbashi, Minato-ku

Tokyo, 105-0004

Japan

ZMD Far East, Ltd.

3F, No. 51, Sec. 2,

Keelung Road

11052 Taipei

Taiwan

Zentrum Mikroelektronik

Dresden AG, Korea Office

U-space 1 Building

11th Floor, Unit JA-1102

670 Sampyeong-dong

Bundang-gu, Seongnam-si

Gyeonggi-do, 463-400

Korea

Phone +49.351.8822.7.776

Fax

+49.351.8822.8.7776

Phone +855.275.9634 (USA)

Phone +408.883.6310

Fax

+408.883.6358

Phone +81.3.6895.7410

Fax

+81.3.6895.7301

Phone +886.2.2377.8189

Fax

+886.2.2377.8199

Phone +82.31.950.7679

Fax

+82.504.841.3026

DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG

(ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under

no circumstances shall ZMD AG be liable to any customer, licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever

arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any customer, licensee or

any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for an y damages in connection with or arising out of the furnishing,

performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise.