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TPS23861PWR 25.5 W Ethernet Switch IC POE / LAN Quad IEEE 802.3at PSE Controller

Categories Flash Memory IC Chip
Brand Name: TI
Model Number: TPS23861PWR
MOQ: Contact us
Price: Contact us
Payment Terms: Paypal, Western Union, TT
Supply Ability: 50000 Pieces per Day
Delivery Time: The goods will be shipped within 3 days once received fund
Packaging Details: TSSOP
Description: Power Over Ethernet Controller 4 Channel 802.3at (PoE+), 802.3af (PoE) 28-TSSOP
Current Limit: 70 mA
Operating Supply Voltage: 3.3 V
Output Power: 25.5 W
Duty Cycle - Max: 6.7 %
Packaging: Cut Tape
Package / Case: TSSOP-28
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TPS23861PWR 25.5 W Ethernet Switch IC POE / LAN Quad IEEE 802.3at PSE Controller

TPS23861PWR Ethernet Switch IC POE / LAN Quad IEEE 802.3at PSE Controller


1 Features

  • IEEE 802.3at Quad Port PSE Controller
  • – Auto Detect, Classification

  • – Auto Turn-On and Disconnect

  • – Efficient 255-mΩ Sense Resistor

  • Pin-Out Enables Two-Layer PCB

  • Kelvin Current Sensing

  • 4-Point Detection

  • Automatic Mode – As Shipped

    • – No External Terminal Setting Required

    • – No Initial I2C Communication Required

  • Semi-Automatic Mode – Set by I2C Command

    • – Continuous Identification and Classification

    • – Meets IEEE 400-ms TPON Specification

    • – Fast-Port Shutdown Input

    • – Operates best when used in conjunction with system reference code http://www.ti.com/product/TPS23861/toolssoftw are


2 Applications

  • Ethernet Switches and Routers

  • Surveillance NVR and DVRs

  • Residential Gateways

  • PoE Pass-Through Systems

  • Wireless Backhaul


3 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 TPON specification is ensured whether in semi-automatic or automatic mode.

Device Information

PART NUMBER

PACKAGE

BODY SIZE

TPS23861

TSSOP (28)

9.80 mm x 6.60 mm

Quality TPS23861PWR 25.5 W Ethernet Switch IC POE / LAN Quad IEEE 802.3at PSE Controller for sale
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