TIPD121

Isolated Current Sensing Reference Design Solution, 5A, 2kV

TIPD121

Design files

Overview

This TI Precision Reference Design provides a user-side solution for providing power to the hot side of an isolated current shunt monitor. The first step in creating an isolated current sense solution, is to provide power to the primary side of the sensor. This reference design will go through the steps in selecting a transformer, rectifying diodes and filter components necessary for providing a low cost 'off the shelf' solution to a common problem.

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Features
  • Provides 5.0VISO @ 10mA (min) from 3.3V User Power
  • Single 3.3V or 5.0V Supply Solution
  • Utilizes AMC1200/1100 Isolation Amplifiers 

 

This Precision Reference Design Includes

  • Theory
  • Component Selection
  • TINA-TI Simulation
  • Modification Options

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

SLAC591.ZIP (31 K)

Detailed schematic diagram for design layout and components

TIDR141.PDF (43 K)

Detailed schematic diagram for design layout and components

TIDR142.PDF (189 K)

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

Products

Includes TI products in the design and potential alternatives.

Isolated amplifiers

AMC1200±250-mV-input basic isolated amplifier for current sensing

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transformer drivers

SN6501Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* User guide 0-5 A, Single-Supply, 2 kV Isolated Current Sensing Solution Jun. 18, 2013

Related design resources

Design tools & simulation

SIMULATION TOOL
TINA-TI SPICE-based analog simulation program

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