TPS23861 Series

2-pair, type-2, 4-channel PoE PSE with autonomous mode

Catalog

2-pair, type-2, 4-channel PoE PSE with autonomous mode

Part	Current - Supply	Voltage - Supply [Max]	Voltage - Supply [Min]	Power - Max [Max]	Supplier Device Package	Number of Channels	Mounting Type	Package / Case	Package / Case	Package / Case [y]	Standards	Operating Temperature [Max]	Operating Temperature [Min]	Type	Utilized IC / Part	Secondary Attributes	Contents	Supplied Contents	Function
Texas Instruments TPS23861PWR	3.5 mA	57 V	44 V	25.5 W	28-TSSOP	4	Surface Mount	28-TSSOP	0.173 in	4.4 mm	802.3af (PoE), 802.3at (PoE+)	85 °C	-40 °C	Controller (PSE)
Texas Instruments TPS23861EVM-612														Power Management	TPS23861	On-Board LEDs	Board(s)	Board(s)	Power Over Ethernet (POE), PSE
Texas Instruments TPS23861PW	3.5 mA	57 V	44 V	25.5 W	28-TSSOP	4	Surface Mount	28-TSSOP	0.173 in	4.4 mm	802.3af (PoE), 802.3at (PoE+)	85 °C	-40 °C	Controller (PSE)

Catalog

2-pair, type-2, 4-channel PoE PSE with autonomous mode

Key Features

• IEEE 802.3at Quad Port PSE controllerAuto Detect, classificationAuto Turn-On and disconnectEfficient 255-mΩ sense resistorPin-Out enables Two-Layer PCBKelvin Current Sensing4-Point detectionAutomatic mode – as shippedNo External terminal setting requiredNo Initial I2C communication requiredSemi-Automatic mode – set by I2C commandContinuous Identification and ClassificationMeets IEEE 400-ms TPONspecificationFast-Port shutdown inputOperates best when used in conjunction with system reference codehttp://www.ti.com/product/TPS23861/toolssoftwareOptional I2C control and monitoring–40°C to 125°C Temperature rangeTSSOP 28 Package 9.8 mm x 6.6 mmIEEE 802.3at Quad Port PSE controllerAuto Detect, classificationAuto Turn-On and disconnectEfficient 255-mΩ sense resistorPin-Out enables Two-Layer PCBKelvin Current Sensing4-Point detectionAutomatic mode – as shippedNo External terminal setting requiredNo Initial I2C communication requiredSemi-Automatic mode – set by I2C commandContinuous Identification and ClassificationMeets IEEE 400-ms TPONspecificationFast-Port shutdown inputOperates best when used in conjunction with system reference codehttp://www.ti.com/product/TPS23861/toolssoftwareOptional I2C control and monitoring–40°C to 125°C Temperature rangeTSSOP 28 Package 9.8 mm x 6.6 mm

Description

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 TPS23861 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 TPS23861 supports DC disconnection and the external FET architecture allows designers to balance size, efficiency and solution cost requirements. The unique pin-out enables 2-layer PCB designs via logical grouping and clear upper and lower differentiation of I2C and power pins. This delivers best-in-class thermal performance, Kelvin accuracy and low-build cost. In addition to automatic operation, the TPS23861 supports Semi-Auto Mode via I2C control for precision monitoring and intelligent power management. Compliance with the 400-ms TPONspecification is ensured whether in semi-automatic or automatic mode. 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 TPS23861 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 TPS23861 supports DC disconnection and the external FET architecture allows designers to balance size, efficiency and solution cost requirements. The unique pin-out enables 2-layer PCB designs via logical grouping and clear upper and lower differentiation of I2C and power pins. This delivers best-in-class thermal performance, Kelvin accuracy and low-build cost. In addition to automatic operation, the TPS23861 supports Semi-Auto Mode via I2C control for precision monitoring and intelligent power management. Compliance with the 400-ms TPONspecification is ensured whether in semi-automatic or automatic mode.