High Efficiency 100W Active Clamp Forward 220V-400VDC Input, 28V/ 3.6A Reference Design

(ACTIVE) PMP7453

Description & Features

Technical Documents

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Description

This reference design generates an isolated 28V/100W output from a high voltage DC input. This design is intended to operate from the output of PFC front end regulator. The UCC2897A is used to control an active clamp forward converter. Self-driven synchronous rectifiers allow for over 92% efficiency. An accurate current limit is provided by directly sensing the output current. A clock pulse output is also provided for synchronizing with other converters.

Features
  • High efficiency
  • Self-driven synchronous rectifiers
  • Good thermal performance

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Schematic/Block Diagram

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Test Data

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Design Files

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Parametrics
 PMP7453.1
(Output Voltage 1)
Vin (Min) (V)220
Vin (Max) (V)400
Vout (Nom) (V)28
Iout (Max) (A)3.6
Output Power (W)100.8
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
SN74AHCT74  Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset  Flip-flop/latch/register  Sample & Buy View Design Kits & Evaluation Modules
TL103WA  Dual OpAmp With Internal Reference  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
UCC2897A  Advanced Current-Mode Active Clamp PWM Controller  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)
SN74AHCT74 Download Download
Download Download
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Download -
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TL103WA Download Download
TL431 Download Download
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Download -
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Download Download
Download -
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UCC2897A Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date
PDF 2223 23 Jan 2015
Design files (3)
Title Abstract Type Size (KB) Date
PDF 203 26 Jan 2015
PDF 80 23 Jan 2015
PDF 165 23 Jan 2015

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