Soft-Start Isolated Power Supply Reference Design TIDA-00326 (ACTIVE)

Description & Features

Technical Documents

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Description

This reference design demonstrates a Soft-Start Isolated Power Supply. It utilizes a TPS22965 Load-Switch and SN6501 Transformer Driver to slew-rate limit the ramp-up power on the primary supply, and utilizes a Transformer plus a full-wave rectifier to generate the isolated secondary power.

Features
  • Operates with 3.3V or 5V primary supplies
  • 50uA load switch quiescent current
  • High primary-side current drive
    • 350mA with 5V supply
    • 150mA with 3.3V supply
  • Primary side rise time = ~2ms

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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
SN6501  Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules
TPS22965  5.7V, 6A, 16mΩ load switch with adjustable rise time and optional quick output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
SN6501 Download Download
TPS22965 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 290 10 Oct 2014
Design files (3)
Title Type Size (KB) Date
ZIP 80 10 Oct 2014
PDF 97 10 Oct 2014
PDF 25 10 Oct 2014

Support & training

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