PMP10871

18-36VDCin, 5V/4A Active Clamp Reference Design

PMP10871

Design files

Overview

The PMP10871 reference design uses the UCC2897A to control an active clamp forward and converts an 18-36V input to an isolated 5V/4A output with efficiency over 92%.  This compact design uses only surface mount components.

Features
  • High efficiency (greater than 92%)
  • Self-Driven Synchronous Rectifiers
  • 100% Surface Mount Components
  • All Ceramic Output Capacitors
Output voltage options PMP10871.1
Vin (Min) (V) 18
Vin (Max) (V) 36
Vout (Nom) (V) 5
Iout (Max) (A) 4
Output Power (W) 20
Isolated/Non-Isolated Isolated
Input Type DC
Topology Forward- Active Clamp^Forward- Synchronous

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.

TIDU952.PDF (2216 K)

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

TIDREN1.PDF (163 K)

Detailed schematic diagram for design layout and components

TIDREN2.PDF (81 K)

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

TIDREN3.PDF (79 K)

Detailed overview of design layout for component placement

Products

Includes TI products in the design and potential alternatives.

PWM controllers

UCC2897A110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Low-side drivers

UCC275114-A/8-A single-channel gate driver with 5-V UVLO, split outputs, and 13-ns Prop delay

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD17578Q3A30-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 9.4 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD19534Q5A100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 15.1 mOhm

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

Technical documentation

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Type Title Date
* Test report PMP10871 Test Results May 06, 2015
Technical article Power Tips: Voltage mode or current mode? Oct. 02, 2015

Support & training

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