User's Guide
SLUUB55 – September 2014
bq51025 Evaluation Module (PWR649)
The bq51025EVM-649 (PWR649) wireless power receiver evaluation kit (EVM) from TI is a high
performance, easy-to-use development kit for the design of wireless power solutions. It helps designers
evaluate the operation and performance of the bq51025 IC, a secondary-side receiver device for wireless
power transfer applications. The bq51025 device is a fully-contained, wireless power receiver capable of
operating in WPC v1.1 protocol which allows a wireless power system to deliver up to 5 W to the system
when used with a Qi inductive transmitter. When paired with the bq500215EVM-648 (PWR648), the
bq51025 is capable of delivering up to 10 W to the system. The bq51025 device provides a single device
power conversion (rectification and regulation) as well as the digital control and communication for WPC
specification. The kit enables designers to speed up the development of their end-applications.
Contents
1
Introduction
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2
Considerations with this EVM
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3
Modifications
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4
Recommended Operating Conditions
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5
Equipment and EVM Setup
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5.1
Schematic
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5.2
Recommended Test Equipment
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5.3
Equipment Setup
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5.4
Connector Descriptions
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5.5
Jumpers and Switches
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5.6
Test Point Descriptions
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5.7
Pin Description of the IC
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6
Test Procedure
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6.1
Definition
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6.2
Procedure
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7
Test Results
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7.1
Steady-State Operation with the bq24261 Charger
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7.2
Load Step
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7.3
Start Up
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7.4
Efficiency Data
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7.5
Adapter Insertion and Removal
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7.6
Thermal Performance
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8
Layout and Bill of Material
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8.1
bq51025 Traces
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8.2
Layout Guidelines
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8.3
Printed-Circuit Board Layout Example
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8.4
bq51025EVM-649 Layout
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8.5
Bill of Materials (BOM)
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List of Figures
1
bq51025EVM-649 Schematic
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2
Placement of PWR649 on PWR648
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3
bq51025 in Steady State Operation with bq24261
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4
1-A Load Step
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5
1.4-A Load Step
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1
SLUUB55 – September 2014
bq51025 Evaluation Module (PWR649)
Copyright © 2014, Texas Instruments Incorporated