Texas Instruments bq24295EVM-549, User Manual

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User's Guide
SLUUAO5B – August 2013 – Revised April 2014
bq24295EVM-549 (PWR549) User’s Guide
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Contents
1 Introduction
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1.1 EVM Features
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1.2 Design Considerations
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1.3 General Descriptions
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1.4 I/O Description
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2 Test Summary
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2.1 Equipment
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2.2 Equipment Setup
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2.3 Procedure
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2.4 Charge Voltage and Current Regulation of VIN and Device ID Verification
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3 PCB Layout Guideline
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4 PCB Thermal Design
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5 Board Layout, Schematic, and Bill of Materials
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5.1 Board Layout
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5.2 Schematic
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List of Figures
1 OTG Boost Mode 5-V Output Load Regulation Versus PCB Layer Thickness - Default Setting
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2 Connections of the HPA172 Kit
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3 Original Test Setup for PWR549 (bq24295 EVM)
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4 Main Window of the bq2429x Evaluation Software
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5 Main Window with Enable Termination Unchecked
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6 Buck Mode Switch Node Waveform, VBUS = 5 V, VBAT = 3.7 V
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7 Buck Mode Input PMID Ripple, VBUS = 5 V, VBAT = 3.7 V
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8 Buck Mode Output Ripple, VBUS = 5 V, VBAT = 3.7 V
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9 Boost Mode Ripple and Duty Cycle; VBAT = 3.7 V
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10 bq24295 EVM Top Layer
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11 bq24295 EVM Bottom Layer
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12 bq24295 EVM Top Assembly
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13 bq24295 EVM Schematic
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List of Tables
1 EVM Connections
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2 Jumper Connections
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3 Switch Settings
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4 Recommended Operating Conditions
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5 Device ID
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6 Bill of Materials
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1 SLUUAO5B – August 2013 – Revised April 2014 bq24295EVM-549 (PWR549) User’s Guide
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