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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
TPS23861PWR Ethernet Switch IC POE / LAN Quad IEEE 802.3at PSE Controller
1 Features
– 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 |
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TPS23861PWR 25.5 W Ethernet Switch IC POE / LAN Quad IEEE 802.3at PSE Controller Images |