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SLUUBM0 – May 2017
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Copyright © 2017, Texas Instruments Incorporated
TPS92518EVM Dual Buck Controller Evaluation Module
User's Guide
SLUUBM0 – May 2017
TPS92518EVM Dual Buck Controller Evaluation Module
This user's guide describes the specifications, board connection description, characteristics, operation,
and use of the combined, two board TPS92518 Evaluation Module (EVM). A complete schematic diagram,
printed circuit board layouts, and bill of materials are included in this document.
Contents
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Description
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Performance Specifications
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Performance Data and Typical Characteristic Curves
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Schematic, PCB Layout, and Bill of Materials
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Software
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Use of LEDSPIMCUEVM-879 Microcontroller Board for SPI Communications with the TPS92518
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List of Figures
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Frequency vs Output Voltage
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Efficiency Over Temperature at Different Peak Threshold Settings
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PWM Dimming, Multiple PWM Frequencies, Both Channels
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Single-Channel PWM Dimming at 400 Hz
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SPI Setting Output Enable Bit and Subsequent Switching Initiation
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Hardware PWM Enable Pulled High, Triggering Switching
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SPI Clearing Output Enable Bit and Subsequent Switching Shutdown
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Hardware PWM Enable Pulled Low, Triggering Chip Shutdown
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Current Sharing
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Switch Node Current
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Switch Node Current
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Additional Circuitry Required for Shunt FET Dimming
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TPS92518EVM-878 Schematic
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TPS92518EVM-878 Top Side
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TPS92518EVM-878 Bottom Side
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Setup Screen 1
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Setup Screen 2
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Setup Screen 3
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Setup Screen 4
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Setup Screen 5
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Setup Screen 6
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Setup Screen 7
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Setup Screen 8
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Setup Screen 9
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Setup Screen 10
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Setup Screen 11
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LEDSPIMCUEVM-879 Schematic, Page 1
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LEDSPIMCUEVM-879 Schematic, Page 2
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LEDSPIMCUEVM-879 Schematic, Page 3
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