Automotive 40V to 1kV input flyback reference design supporting regenerative braking test TIDA-01505 (ACTIVE)

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

This power supply reference design for automotive auxiliary circuits generates a 15-V, 4-A output from a wide input range of 40 V to 1 kV and up to a 1.2-kV transient. The design fits ideally into an 800-V batterydriven hybrid-electric vehicle (HEV) or electric vehicle(EV) traction inverter system. The 40-V minimum input voltage supports the functional safety test for the regenerative braking from the traction motor. This reference design implements a silicon carbide (SiC) MOSFET with high blocking voltage and low gate charge to reduce switching losses. A non-isolated level shifter enables driving the SiC MOSFET from the Si MOSFET driver embedded in the flyback controller. The board includes two flyback converter variants: primary-side regulation (PSR) and optocoupler feedback to make comparisons and address different needs. The transformer design meets qualifications for Automotive AEC-Q200 Grade 1 with reinforced isolation.

Features
  • 40V to 1kV input, 15-V output flyback auxiliary power supply with output power up to 60W
  • Regulated 15V with active start-up circuit for reduced standby power
  • Extendable to higher voltage and higher power range to utilize high voltage capability of SiC MOSFET
  • Two converter variants with PSR and optocoupler feedback included on board
  • Constant switching frequency type of controller with maximum switching frequency of 1MHz and duty cycle range from 0% to 96%

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files


TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TL431A-Q1  Automotive adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
UCC28C43-Q1  Automotive BiCMOS Low-Power Current-Mode PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TL431A-Q1 Download Download
Download Download
UCC28C43-Q1 Download -

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Application notes (2)
Title Type Size (KB) Date
PDF 787 05 Sep 1999
PDF 189 05 Sep 1999
User guides (1)
Title Type Size (KB) Date
PDF 3541 12 Feb 2019
Design files (6)
Title Type Size (KB) Date
ZIP 283 21 Feb 2018
ZIP 1707 21 Feb 2018
PDF 1570 21 Feb 2018
PDF 395 21 Feb 2018
PDF 77 21 Feb 2018
PDF 913 21 Feb 2018
Related Tools & Software

Reference Designs  ( 1 )


Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles