220V-400VDC Input, 5V/100W Active Clamp Forward Reference Design

(ACTIVE) PMP7413

Description & Features

Technical Documents

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


Description

This reference design generates an isolated 5V/100W output from a high voltage DC input. This design is intended to operate from the output of a PFC front end regulator. The UCC2897A is used to control an active clamp forward converter. Self-driven synchronous rectifiers allow for 91% 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
  • 220V-400VDC to 5V/20A Output (100W)
  • 91% efficiency
  • Ouput Current Sensing
  • Features UCC2897A Controller along with TI NexFET Synchronous Rectifiers
  • Active Clamp Forward Topology
  • Reduced conduction losses and die area of the synchronous rectifiers

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


  




Parametrics
 PMP7413.1
(Output Voltage 1)
Vin (Min) (V)220
Vin (Max) (V)400
Vout (Nom) (V)5
Iout (Max) (A)20
Output Power (W)100
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp
Forward- Synchronous

TI Devices (5)

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
CSD17501Q5A  30V, N-Channel NexFET™ Power MOSFET with 20 Volt Vgs  Power MOSFET  Sample & Buy View Design Kits & Evaluation Modules
SN74AHCT74  Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset  Flip-Flop/Latch/Register  Sample & Buy Not Available
TL103WA  Dual OpAmp With Internal Reference  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
TL431A  Adjustable Precision Shunt Regulator  Voltage Reference  Sample & Buy Not Available
UCC2897A  Advanced Current-Mode Active Clamp PWM Controller  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules

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 2503 27 Jun 2012 61
Design files (4)
Title Abstract Type Size (KB) Date Views
PDF 361 27 Jun 2012 15
ZIP 218 27 Jun 2012 38
PDF 83 27 Jun 2012 21
PDF 174 27 Jun 2012 58


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