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36V-60V Input 12V/5A Highly Efficient Active Clamp Forward Reference Design
PMP20742
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Key Document

Description

The PMP20742 reference design provides 12V at 5A (60W) from a 36V-60Vdc input with over 94% efficiency. This design uses the UCC2897A active clamp controller along with synchronous rectifiers to achieve very high efficiency.  Typical applications include Power Over Ethernet, Telecom, and Server systems.

Features
  • High efficiency, over 94%
  • Low profile, 11.43 mm (0.45") maximum height
  • Self-driven synchronous rectifiers reduce cost and complexity

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP20742.1
(Output Voltage 1)
Vin (Min) (V)36
Vin (Max) (V)60
Vout (Nom) (V)12
Iout (Max) (A)5
Output Power (W)60
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp

TI Devices (4)

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
CSD18537NQ5A  60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 13 mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
UCC27511  4-A/8-A single-channel gate driver with 5-V UVLO, split outputs, and 13-ns Prop delay  Gate drivers  Sample & Buy Not Available
UCC2897A  110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18537NQ5A VSONP (DQJ)| 8 Download
TL431 Download Download
Download Download
Download -
Download Download
Download Download
Download Download
Download Download
Download -
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UCC27511 Download Download
UCC2897A Download Download
Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 2589 01 Mar 2017
Design files (5)
Title Type Size (KB) Date
ZIP 744 01 Mar 2017
PDF 990 01 Mar 2017
PDF 243 01 Mar 2017
PDF 71 01 Mar 2017
PDF 326 01 Mar 2017

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