Description

This reference design is an IEEE802.3af: type 1 compliant powered device. The synchronous flyback converter provides good efficiency with dual outputs (5V/580mA: 3.3V/900mA): non-isolated. It can be used in PoE applications such as a video or VoIP phones. The TPS23785BPWP contains both the PoE powered device and the PWM controller functions.

Features

• Good efficiency: non-isolated: synchronous flyback design• 34V to 57V adapter input capability• IEEE 802.3af Type 1 hardware classification• 5V @ 580mA and 3.3V @ 900mA output• IEEE802.3af: Type 1 compliant

Bill of materials

Download the bill of materials for PMP9012
Schematic/Block Diagram

Schematic/Block Diagram

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Design Files

Design Files

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Test Data

Test Data

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Other documents

Download PMP9012 Gerber (ZIP)
Download PMP9012 PCB (PDF)
Download PMP9012 Assembly Drawing (PDF)
Download PMP9012 BOM (PDF)
Download PMP9012 Schematic (PDF)
Additional details
Texas Instruments
Class 2 Dual Output High Efficiency Non-Isolated Synch Flyback Conv for PoE Apps Reference Design

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