Texas Instruments BQ25887, Руководство пользователя

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1 SLUUC12 – February 2019
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Copyright © 2019, Texas Instruments Incorporated
BQ25887 QFN boost-mode battery charger with cell balancing evaluation
module
Advance Information
User's Guide
SLUUC12 – February 2019
BQ25887 QFN boost-mode battery charger with cell
balancing evaluation module
This user's guide provides detailed testing instructions for the BQ25887 evaluation module (EVM). Also
included are descriptions of the necessary equipment, equipment setup, procedures, the printed-circuit
board layouts, schematics, and the bill of materials (BOM).
Throughout this user's guide, the abbreviations EVM , BQ25887EVM, BMS016 , and the term evaluation
module are synonymous with the BQ25887 QFN evaluation module, unless otherwise noted.
Contents
1 Introduction
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2
1.1 EVM Features
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2
1.2 I/O Descriptions
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2 Test Summary
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2.1 Equipment
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2.2 Charge Mode
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2.3 Helpful Tips
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3 PCB Layout Guidelines
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4 Board Layout, Schematic, and Bill of Materials
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4.1 Board Layout
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4.2 Schematic
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4.3 Bill of Materials
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List of Figures
1 BQ25887 Charge Mode Test Setup
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2 Charge Mode Startup
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3 BQ2588xEVM Top Overlay
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4 BQ2588xEVM Layer 2
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5 BQ2588xEVM Layer 3
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6 BQ2588xEVM Bottom Overlay
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7 BQ25887EVM Schematic
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List of Tables
1 Device Data Sheets
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2 EVM Connections
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3 EVM Jumper Connections and Shunt Installation
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4 Recommended Operating Conditions
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5 BQ25887EVM
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