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TIDA-00004

Isolated Power Supplies Reference Design

Design files

TIDA-00004

Design files

Overview

This reference design demonstrates how to create a 3.3V or 5V isolated power supply for isolated RS-485, CAN or similar applications. There are five separate supplies on the board for different cases of input and output voltage, with and without regulated outputs.

Features
  • Push-pull driver for small transformers
  • High primary-side current drive
  • Low ripple on rectified output
  • Small footprint
  • Single 3.3V or 5V supply
  • This reference design is orderable
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Test report — TIDA-00004
TIDU161.PDF (96 KB)

Test results for the reference design, including efficiency graphs, test prerequisites and more

download Bill of materials (BOM) — TIDA-00004
TIDR256.PDF (108 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Gerber file — TIDA-00004
TIDC180.ZIP (322 KB)

Design file that contains information on physical board layer of design PCB

download Schematic — TIDA-00004
TIDR255.PDF (59 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Transformer drivers

SN6501 — Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies

Data sheet: PDF | HTML

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Hardware

Evaluation board

SN6501-MULXFMR-EVM — SN6501 transformer driver for isolated power supplies evaluation module

The SN6501-Multi-Xfmr EVM is configured with five independent circuits providing options to operate using either a +3.3Vdc or +5.0Vdc input and provides isolated 3.3Vdc or 5.0Vdc outputs. Two of the circuits include LDO's to regulate the output. The five configurations include 3Vdc-to-3Vdc with no (...)

EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00004 — Isolated Power Supplies Reference Design
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SN6501-MULXFMR-EVM — SN6501 transformer driver for isolated power supplies evaluation module

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Hardware development
Reference design
TIDA-00004 — Isolated Power Supplies Reference Design
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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* Test report TIDA-00004 Test Results Sep 26, 2013

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