48V-60Vdc Input, 12V/150W Active Clamp Forward - Reference Design

(PREVIEW) PMP9720

Description & Features

Technical Documents

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Description

This reference design generates a 12V/13A output from 54V DC input.  The UCC2897A controls an active clamp forward converter power stage.  The low gate charge and low RDSon of the CSD18532Q5B, implemented as self-driven synchronous rectifiers, allow this design to achieve a max load efficiency over 95%.  The compact UCC27511 drivers simplify the gate drive circuitry for the synchronous rectifiers.

Features
  • High Efficiency (over 95%)
  • Generates regulated 12V bus for telecom or server applications
  • Low profile, less than 0.5 inches (12.5mm) max component height
  • Self-driven synchronous rectifiers reduce drive complexity

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Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP9720.1
(Output Voltage 1)
Vin (Min) (V)47
Vin (Max) (V)60
Vout (Nom) (V)12
Iout (Max) (A)13
Output Power (W)156
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp
Forward- Synchronous

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18532Q5B  60-V, N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
UCC27511  4A/8A Single Channel High-speed Low-side Gate Driver  Gate Drivers  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)
CSD18532Q5B VSON-CLIP (DNK)| 8 Download -
UCC27511 Download Download
UCC2897A Download 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 Views
PDF 4103 18 Sep 2014 11
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 227 18 Sep 2014 6
ZIP 706 18 Sep 2014 4
PDF 399 18 Sep 2014 3
PDF 85 18 Sep 2014 2
PDF 84 18 Sep 2014 5
PDF 232 18 Sep 2014 21

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