Texas Instruments bq24070, User Manual

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User's Guide
SLUU248 – May 2006
bq24070 1.5-A Single-Chip Li-Ion and Li-Pol Charge
Management IC EVM
This user’s guide describes the bq24070 evaluation module (EVM). The EVM provides
a convenient method for evaluating the performance of a charge management and
system power solution for portable applications using the bq24070 product family. A
completly designed and tested module is presented. The charger is designed to deliver
up to 1.5 A of continuous current to the system or charger for one-cell Li-ion or
Li-polymer applications using a dc power supply. The charger is programmed from the
factory to deliver 1 A of charging current.
Contents
1 Introduction
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2
2 Considerations When Testing and Using bq24070 ICs
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2
3 Performance Specification Summary
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3
4 Test Summary
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3
5 Schematic
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6
6 Physical Layouts
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7
7 Bill of Materials
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11
8 References
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11
List of Figures
1 Test Diagram
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3
2 bq24070 EVM Schematic
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6
3 Top Assembly View
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7
4 Top Silkscreen
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8
5 Board Layout – Top Etch Layer
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8
6 Board Layout – Second Etch Layer
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9
7 Board Layout – Third Etch Layer
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9
8 Board Layout – Bottom Etch Layer
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10
List of Tables
1 Performance Specification Summary For bq24070 EVM
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3
2 Bill of Materials
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11
SLUU248 – May 2006 bq24070 1.5-A Single-Chip Li-Ion and Li-Pol Charge Management IC EVM 1
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