Power Sequencing Reference Design Using Load Switches
TIDA-01584
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Key Document

Description

This reference design demonstrates various power sequencing configurations using load switches. By using integrated load switches, the timing of each voltage rail can be adjusted independently. Each voltage rail can be controlled without extensive processor intervention or external digital components. This design is useful in applications such as multi-function printers (MFPs) and set-top box (STB), where specific timing sequences are required to turn on various subsystems and processor rails.

Features
  • Three different Power Sequencing configurations: CT Configuration, QOD configuration, and independent GPIO configuration
  • Adjustible timing thresholds using CT and QOD pins
  • Pin-to-pin footprints allow for swapping between multiple load switches for different voltage, current, and Ron requirements
  • Load switches offer smaller solution size and lower component count when compared to Discrete MOSFET solutions

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS22810  18-V, 3-A, 79-mΩ load swich with adj. rise time and adj. output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS22917  5.5-V, 2-A, 80-mΩ , 10-nA leakage load switch adj. rise time and adj output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS22918  5.5-V, 2-A, 52-mΩ load switch with adj. rise time and adj. output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS22975  5.7-V, 6-A, 16-mΩ load switch with adj. rise time, optional output discharge, and thermal shutdown  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS22810 Download -
Download Download
TPS22917 Download Download
TPS22918 Download
TPS22975 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1740 15 Dec 2017
Design files (6)
Title Type Size (KB) Date
ZIP 489 13 Dec 2017
PDF 638 13 Dec 2017
PDF 494 13 Dec 2017
PDF 103 13 Dec 2017
PDF 36 13 Dec 2017
PDF 217 13 Dec 2017

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