PMP8407 Reference Design

Texas Instruments

Class 2 Mulitple Output: High Efficiency Flyback Converter for PoE Applications

Description

This reference evaluation module: featuring the TPS23785B PoE interface and DC-toDC contoller: is used for class 2 PoE applications where high effliency and multiple outputs are required.The flyback converter with synchronous reftifier provides excellent efficiency and small size for PoE applications such as IP phones. The TPS23785B contains both the PoE powered device and the PWM contoller.

Features
  • Efficiency achieved >90%1.5% peak to peak cross regulation on 5VIsolated multiple output (3.3V at 0.88A; 5V at 0.35A; 10V at 0.11A)Uses TPS23785B high-power: high-efficiency PoE PD and DC-to-DC controllerSmall board sizeThis circuit design is fully functional and tested and recommended for new design.
Applications
  • Video doorbell
  • Electronic smart lock
  • Thermal imaging camera
  • IP network camera
Product Categories
  • Power management

Parts

Part Number Name Companion Part
TLV431A TLV431A Buy Datasheet
TPS23785B TPS23785B Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP8407 Download

Schematic

Quickly understand overall system functionality.

Download the schematic for PMP8407

Other Documents

Title Updated Type Size (KB)
PMP8407 Gerber 16 Sep 2013 ZIP 313
PMP8407 PCB 16 Sep 2013 PDF 225
PMP8407 BOM 16 Sep 2013 PDF 121
PMP8407 Schematic 16 Sep 2013 PDF 61