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PoE PD Solution with PSR or SSR Active Clamp Flyback Converter

21/06/2024

TPE15017 is a monolithic power over ethernet (PoE) powered device (PD) with an integrated PD interface and a flyback power converter.

To achieve a smaller size and high-switching frequency, the TPE15017 fly-back converter is specifically designed with active clamp primary-side regulation (PSR) fly-back topology. TPE15017 can also be set in secondary side regulation (SSR) active clamped fly-back topology, which can get the best regulation through an optocoupler from the secondary side.

Main Features

  • Compatible with 802.3af Specifications
  • 100-V 0.56-Ω PD Input MOSFET
  • Active Clamp Primary-Side Regulated (PSR) Flyback without Aux-winding
  • Active Clamp Secondary-Side Regulated (SSR) Flyback through Opto-coupler
  • 0.36-Ω and 0.78-Ω Integral Flyback MOSFETs
  • Programmable up to 650-kHz Frequency
  • 1.5-A Switching Current Limit
  • Output Diode Compensation in PSR Mode
  • Programmable Soft-Start Time
  • Frequency Foldback during Startup and Protection
  • Automatic Light Load Power Maintain Signature
  • EMI Reduction with Frequency Dithering
  • Hiccup OLP, OVP, and OTP Protection
  • Operating TJ Temperature Range from −40°C ~ +125°C
  • Available in 3×4 19-pin QFN Package
Documents Tech question
3 Peak TPE15017

PoE PD Solution with PSR or SSR Active Clamp Flyback Converter

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3Peak

3PEAK is committed to the research and development of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal front-ends, and embedded processors to provide customers with all-around solutions.

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Documents

  • 3 Peak TPE15017 Datasheet
Pexels thisisengineering 3913017

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