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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
.......................................................................................................
1.2
Design Considerations
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1.3
General Descriptions
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1.4
I/O Description
......................................................................................................
2
Test Summary
................................................................................................................
2.1
Equipment
...........................................................................................................
2.2
Equipment Setup
....................................................................................................
2.3
Procedure
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2.4
Charge Voltage and Current Regulation of VIN and Device ID Verification
................................
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
.....................................................................
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
......................................................................................................................
6
Bill of Materials
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1
SLUUAO5B – August 2013 – Revised April 2014
bq24295EVM-549 (PWR549) User’s Guide
Copyright © 2013–2014, Texas Instruments Incorporated