Texas Instruments BQ24351EVM 1 Introduction 1.1 General Description, 1.2 EVM Features, 1.3 I/O Description

Introduction

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1 Introduction1.1 General Description

The bq24351 evaluation module (EVM) is a complete charger module for evaluating a charger front-end

protection and charger solution using the bq24351 and bq2057C devices. It is designed to deliver up to

560 mA of charge current to Li-ion or Li-polymer applications. The charger front-end protection current is

designed to 1.2 A.

The bq24351 protects the charging system against three types of failures: input overvoltage when the ac

adapter fails to regulate its voltage, load overcurrent when failures such as a short circuit occur in the

charging system, and battery overcharge.

For details, see the bq24351 data sheet (SLUSA62).

1.2 EVM Features

• Evaluation module for bq24351 DSG

• Evaluation module for bq2057C charger integrated circuit (IC)

• Input operating range for bq24351 4.5 V–26 V

• Input overvoltage protection.

• Input overcurrent protection.

• Battery overvoltage protection.

• LED indication for status signals.

• Test points for key signals available for testing purposes. Easy probe hook-up

• Jumpers available. Easy to change connections

1.3 I/O Description

Jack Description

J1–DC+ ACadapter, positive output

J1–DC– AC adapter, negative output, ground

J2–FAULT Reservedfor other ICs

J2–VBAT bq24351VBAT pin

J2–GATDRV bq24351GATDRV pin

J2–CHGIN bq24351CHGIN pin

J3–BATEN Reservedfor ohter ICs

J3–OUT bq24351OUT pin

J3–BAT+ Battery positive output

J3–GND Ground

J4–BAT+ Connect to battery positive output

J4–BAT– Connect to battery negative output, ground

2bq24351EVMfor Li-Ion Charger Front-End Protection IC SLUU455–October 2010

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