Code example or demo
Data sheet
TPS23880
- 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.
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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View all 9 | 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 |
| Application brief | How to Load TPS2388x SRAM and Parity Code Over I2C (Rev. E) | PDF | HTML | 20 Apr 2023 | |
| 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 | ||
| 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 | PDF | HTML | 16 Jul 2018 | |
| Technical article | The new PoE standard: It’s almost here | PDF | HTML | 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 |
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
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
Code example or demo
SLVC720 — TPS23880 PoE MSP430 Reference Code for Port Power Management Applications
Supported products & hardware
Products
Power sourcing equipment
Hardware development
Daughter card
Development kit
GUI for evaluation module (EVM)
SLVC772 — TPS2388x EVM GUI
Supported products & hardware
Products
Power sourcing equipment
Hardware development
Evaluation board
Daughter card
Development kit
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 (...)
| Package | Pins | Download |
|---|---|---|
| VQFN (RTQ) | 56 | View options |
Ordering & quality
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