Texas Instruments BQ24050 Evaluation Module: 0.8-A, Single-Input, Single-Cell Li-Ion Battery Charger BQ24055EVM BQ24055EVM 数据表
产品代码
BQ24055EVM
User's Guide
SLUU378 – September 2009
0.8-A, Single-Input, Single-Cell Li-Ion Battery Charger
This user’s guide describes the bq24050/2/5 evaluation module (EVM), how to perform a stand-alone
evaluation or interface with a host or system. The charger is designed to deliver up to 800mA of
continuous current to the battery output when programmed with a resistor on the ISET pin and is
programmed for ~540mA at the factory. The USB current limit modes are selected by the ISET2 pin and
limits current to a maximum of 500mA (logic high) or 100mA (float or high impedance). A low on the
ISET2 pin programs the charge current using the ISET resistor.
evaluation or interface with a host or system. The charger is designed to deliver up to 800mA of
continuous current to the battery output when programmed with a resistor on the ISET pin and is
programmed for ~540mA at the factory. The USB current limit modes are selected by the ISET2 pin and
limits current to a maximum of 500mA (logic high) or 100mA (float or high impedance). A low on the
ISET2 pin programs the charge current using the ISET resistor.
Contents
1
Introduction
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2
Considerations With Evaluating the bq24050/2/5
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3
Performance Specification Summary
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4
Test Summary
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4.1
Equipment
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4.2
Equipment and EVM Setup
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4.3
Test Procedure Using a Single Cell Li-Ion Battery
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4.4
Alternate Test Methods
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5
Schematics, Physical Layouts, and Bill of Materials
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5.1
Schematics – HPA388A
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5.2
Physical Layouts – HPA388A
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5.3
Bill of Materials – HPA388A
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5.4
Schematics – HPA379A
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5.5
Physical Layouts – HPA379A
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5.6
Bill of Materials – HPA379A
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List of Figures
1
bq24050/2/5 Setup Schematic
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2
bq24050/2 EVM Schematic
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3
Top Assembly
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4
Top View
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5
Bottom View
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6
bq24055 EVM Schematic
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7
Top Assembly
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8
Top View
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9
Bottom View
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List of Tables
1
HPA388A BOM – bq24050/2
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2
HPA379A BOM – bq24055
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1
SLUU378 – September 2009
0.8-A, Single-Input, Single-Cell Li-Ion Battery Charger
Copyright © 2009, Texas Instruments Incorporated