TPS23861 Datasheet PDF – Power-over-Ethernet (PoE) PSE

Part Number: TPS23861

Function: IEEE 802.3at Quad Port Power-over-Ethernet PSE Controller

Package: TSSOP 28 Pin Type

Manufacturer: Texas Instruments


TPS23861 datasheet



The TPS23861 is an easy-to-use, flexible, IEEE802.3at PSE solution. As shipped, it automatically manages four 802.3at ports without the need for any external control.

The device automatically detects Powered Devices (PDs) that have a valid signature, determines power requirements according to classification and applies power. Two-event classification is supported for type-2 PDs.

The IC supports DC disconnection and the external FET architecture allows designers to balance size, efficiency and solution cost requirements.

Schematic :



1. IEEE 802.3at Quad Port PSE controller

2. Auto Detect, classification

3. Auto Turn-On and disconnect

4. Efficient 255-mΩ sense resistor

5. Pin-Out enables Two-Layer PCB

6. Kelvin Current Sensing

7. 4-Point detection


TPS23861 Datasheet PDF Download

TPS23861 pdf

Other data sheets are available within the file: TPS23861PW, TPS23861PWR