Class 4 PoE High Efficiency Active Clamp Forward Converter (3.3V) Reference Design

(ACTIVE) PMP10288

Description & Features

Technical Documents

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Key Document

Description

The PMP10288 reference design is a Power Over Ethernet (POE) active clamp forward converter. It features the TPS23754, which is a combination of a POE Powered Device (PD) controller and PWM controller. CSD17501Q5A FETs are used for high efficiency synchronous rectification. The input accepts standard Type 2 POE voltage of 42.5VDC-57VDC or a 36VDC-57VDC auxiliary voltage. The output power is an isolated 3.3VDC at 6.9A with PoE input or 3.3VDC at 7.2A with auxiliary input.

Features
  • Integrated PD and PWM controller
  • Power Conversion Efficiency of 90% at full load
  • Low gate charge MOSFETs for high efficiency synchronous rectification
  • Auxillary power input available
  • Test report includes efficiency, ripple, load step, turn-on response, loop stability, and thermal plot

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Parametrics
 PMP10288.1
(Output Voltage 1)
Vin (Min) (V)36
Vin (Max) (V)57
Vout (Nom) (V)3.3
Iout (Max) (A)7.2
Output Power (W)23.76
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp
POE

TI Devices (3)

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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
TLV431A  Low Voltage Adjustable Precision Shunt Regulator  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
TPS23754  High Power/High Efficiency PoE Interface and DC/DC Controller  Power Over Ethernet (PoE)/LAN Solutions  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 TI Recommends
PDF 938 23 Jun 2015 113
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 239 23 Jun 2015 37
PDF 107 23 Jun 2015 35
PDF 522 23 Jun 2015 189


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