Product details

Vin (Min) (V) 44 Vin (Max) (V) 57 ILIM Programmable PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2, 802.3bt Type 3, 802.3bt Type 4 FET External MPS method DC Disconnect Pair control 2-Pair Alt A, 4-Pair Operating temperature range (C) -40 to 125 Features Auto Mode, Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable PCUT, Programmable Port Power Limiting, SRAM Programmable Number of PSE ports 8
Vin (Min) (V) 44 Vin (Max) (V) 57 ILIM Programmable PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2, 802.3bt Type 3, 802.3bt Type 4 FET External MPS method DC Disconnect Pair control 2-Pair Alt A, 4-Pair Operating temperature range (C) -40 to 125 Features Auto Mode, Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable PCUT, Programmable Port Power Limiting, SRAM Programmable Number of PSE ports 8
VQFN (RTQ) 56 64 mm² 8 x 8
  • IEEE 802.3bt PSE solution for PoE 2 Type 3 or Type 4 Power Over Ethernet applications
  • Eight independent PSE channels
  • SRAM Programmable memory
  • Programmable power limiting accuracy ±3%
  • Selectable 2-pair or 4-pair port power allocations
    • 15.4 W, 30 W, 45 W, 60 W, 75 W or 90 W
  • Single and dual signature PD compatibility
  • Dedicated 14-bit integrating current ADC per port
    • Inherent filtering
    • Noise immune MPS for DC disconnect
    • 2% Current sensing accuracy
    • 100-ms Rolling port current averaging
  • 1- or 3-Bit fast port shutdown input
  • Auto-class discovery and power measurement
  • Never Fooled 4-Point detection
  • Inrush and operational foldback protection
  • 425-mA and 1.25-A Selectable current limits
  • Port re-mapping
  • 8-Bit or 16-bit I2C communication
  • Flexible processor controlled operating modes
    • Auto, semi auto and manual / diagnostic
  • Per Port voltage monitoring and telemetry
  • –40°C to +125°C Temperature operation
  • IEEE 802.3bt PSE solution for PoE 2 Type 3 or Type 4 Power Over Ethernet applications
  • Eight independent PSE channels
  • SRAM Programmable memory
  • Programmable power limiting accuracy ±3%
  • Selectable 2-pair or 4-pair port power allocations
    • 15.4 W, 30 W, 45 W, 60 W, 75 W or 90 W
  • Single and dual signature PD compatibility
  • Dedicated 14-bit integrating current ADC per port
    • Inherent filtering
    • Noise immune MPS for DC disconnect
    • 2% Current sensing accuracy
    • 100-ms Rolling port current averaging
  • 1- or 3-Bit fast port shutdown input
  • Auto-class discovery and power measurement
  • Never Fooled 4-Point detection
  • Inrush and operational foldback protection
  • 425-mA and 1.25-A Selectable current limits
  • Port re-mapping
  • 8-Bit or 16-bit I2C communication
  • Flexible processor controlled operating modes
    • Auto, semi auto and manual / diagnostic
  • Per Port voltage monitoring and telemetry
  • –40°C to +125°C Temperature operation

The TPS23880 is an 8-channel power sourcing equipment (PSE) controller engineered to insert power onto Ethernet cables in accordance with the IEEE 802.3bt standard. The eight individual power channels can be configured in any combination of 2-Pair (1-channel) or 4-Pair (2-channels) PoE Ports. The PSE controller can detect powered devices (PDs) that have a valid signature, complete mutual identification, and apply power.

Programmable SRAM enables in-field firmware upgradability over I2C to ensure IEEE compliance and interoperability with the latest PoE enabled devices. Dedicated per port ADCs provide continuous port current monitoring and the ability to perform parallel classification measurements for faster port turn on times. A ±3% accurate programmable port power limit provides the ability to expand the maximum power sourced above 90 W without exceeding 100 W while also making system level power management control more easy to implement and reliable. The Fast Shutdown (OSS) input provides up to eight levels of per port shutdown priority for applications requiring immediate disabling of multiple ports. The 255-mΩ current sense resistor and external FET architecture allow designs to balance size, efficiency, thermal and solution cost requirements. 

Port remapping and pin-to-pin compatibility with the TPS2388, TPS23881, and TPS23882 devices eases migration from previous generation PSE designs and enables interchangeable 2-layer PCB designs to accommodate different system PoE power configurations.

The TPS23880 is an 8-channel power sourcing equipment (PSE) controller engineered to insert power onto Ethernet cables in accordance with the IEEE 802.3bt standard. The eight individual power channels can be configured in any combination of 2-Pair (1-channel) or 4-Pair (2-channels) PoE Ports. The PSE controller can detect powered devices (PDs) that have a valid signature, complete mutual identification, and apply power.

Programmable SRAM enables in-field firmware upgradability over I2C to ensure IEEE compliance and interoperability with the latest PoE enabled devices. Dedicated per port ADCs provide continuous port current monitoring and the ability to perform parallel classification measurements for faster port turn on times. A ±3% accurate programmable port power limit provides the ability to expand the maximum power sourced above 90 W without exceeding 100 W while also making system level power management control more easy to implement and reliable. The Fast Shutdown (OSS) input provides up to eight levels of per port shutdown priority for applications requiring immediate disabling of multiple ports. The 255-mΩ current sense resistor and external FET architecture allow designs to balance size, efficiency, thermal and solution cost requirements. 

Port remapping and pin-to-pin compatibility with the TPS2388, TPS23881, and TPS23882 devices eases migration from previous generation PSE designs and enables interchangeable 2-layer PCB designs to accommodate different system PoE power configurations.

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More Information

TPS23880 product advisory and latest firmware download are  available. Request now

For reduced Rsense (200mΩ), and autonomous mode operation, check out the  TPS23881

For 2-pair, Type-3 30W operation, check out the  TPS23882

Technical documentation

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Type Title Date
* Data sheet TPS23880 Type-4 4-Pair 8-Channel PoE 2 PSE Controller with Programmable SRAM datasheet (Rev. G) PDF | HTML 14 Aug 2020
Test report TPS23880 PoE2 Test Report 26 May 2020
Design guide 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port Applic (Rev. A) 15 Oct 2019
Application note How to Load TPS2388x SRAM and Parity Code over I2C (Rev. C) 17 Sep 2019
EVM User's guide TPS23880EVM: PoE, PSE, TPS23880 Evaluation Module (Rev. B) 17 Oct 2018
Technical article Key considerations for designing with the new PoE standard 16 Jul 2018
Technical article The new PoE standard: It’s almost here 06 Jun 2018
Application note Beyond BT High-Power PoE Solution using the TPS23880 and TPS2372-4 17 Apr 2018
Application note TPS23861 Power-On Considerations 21 Jul 2015
Technical article Mutual ID and its effect on backwards compatibility 07 Nov 2014
Technical article Simplify your PCB layout - When 2 is better than 6 19 Sep 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Daughter card

TPS23880EVM-008 — TPS23880 EVM daughter card for IEEE 802.3bt-ready PoE PSE applications

TPS23880EVM-008 is the daughter card to evaluate the TPS23880 which is a 4-pair, type-4, 8-channel Power-over-Ethernet (PoE) PSE with programmable SRAM. This daughter card provides evaluation and reference circuitry for the TPS23880 which is suitable for high power PSE applications such as campus (...)

User guide: PDF
Not available on TI.com
Development kit

BOOST-PSEMTHR-007 — TPS2388x motherboard for IEEE 802.3bt-ready PoE PSE applications

BOOST-PSEMTHR-007 is the base board for the TPS23880 and TPS23881 PSE controllers. This board contains four 2-pair ports that can be used to send up to 30W/port for IEEE 802.3at applications and two 4-pair ports that can be used to send up to 90W/port for IEEE 802.3bt applications.

User guide: PDF
Not available on TI.com
Code example or demo

TPS23880 PoE MSP430 Reference Code for Port Power Management Applications (Rev. A)

SLVC720A.ZIP (1385 KB)
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GUI for evaluation module (EVM)

TPS2388x EVM GUI (Rev. C)

SLVC772C.ZIP (85101 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Gerber file

TPS23880EVM-008 Gerber

SLUC647.ZIP (1643 KB)
Package Pins Download
QFN (RTQ) 56 View options

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