High-Efficiency Charger for Li-Ion

Batteries with Photovoltaic Sources

ZSPM4521

Datasheet

© 2016 Integrated Device Technology, Inc.

2

January 27, 2016

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

S

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

Kit

Corporate Headquarters

6024 Silver Creek Valley Road

San Jose, CA 95138

www.IDT.com

Sales

1-800-345-7015 or 408-284-8200

Fax: 408-284-2775

www.IDT.com/go/sales

Tech Support

www.IDT.com/go/support

DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance

specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The

information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an

implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property

rights of IDT or any third parties.

IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be

reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the

property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated

Device Technology, Inc. All rights reserved.