Product details


Vin (Min) (V) 0 Vin (Max) (V) 57 PoE current limit (Min) (mA) 405 PoE inrush limit (Typ) (mA) Programmable rDS(on) per FET (Typ) (mOhms) 580 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD Only Fault response Latch Features PG, Programmable UVLO, Thermal Shutdown open-in-new Find other Powered devices

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Powered devices


  • Fully Supports IEEE 802.3af Specification
  • Integrated 0.58-Ω, 100-V, Low-Side Switch
  • 15-kV System Level ESD Capable
  • Supports Use of Low-Cost Silicon Rectifiers
  • Programmable Inrush Current Control
  • Fixed 450-mA Current Limit
  • Fixed and Adjustable UVLO Options
  • Open-Drain, Power-Good Reporting
  • Overtemperature Protection
  • Industrial Temperature Range: –40°C to 85°C
  • 8-Pin SOIC and TSSOP Packages
    • VoIP Phones
    • WLAN Access Points
    • Security Cameras
    • Internet Appliances
    • POS Terminals

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These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af compliant powered device (PD). The TPS2375 family is a second generation PDC (PD Controller) featuring 100-V ratings and a true open-drain, power-good function.

In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.

The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.

Additional resources can be found on the TI Web site

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 10
Type Title Date
* Datasheet TPS237x: IEEE 802.3af PoE Powered Device Controllers datasheet (Rev. B) Apr. 25, 2008
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Lightning Surge Considerations for PoE Powered Devices Apr. 30, 2015
Application notes Designing an EMI Compliant PoE with Isolated Flyback May 20, 2008
Application notes Practical Guidelines EMI Compliant PoE Mar. 27, 2008
Application notes 25-W, High-Power PoE Using the TPS2376-H Oct. 13, 2006
Application notes Using Standard Power-Over-Ethernet Controllers for High-Powered Devices Apr. 07, 2006
Application notes High Power PoE PD Using the TPS2375/77-1 Feb. 28, 2006
Application notes Wall Adapter Powers IEEE 802.3af Powered Device Feb. 01, 2006
Application notes Powered Device Controllers Comparison Apr. 22, 2004

Design & development

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

Hardware development

document-generic User guide

The HPA028 EVM features the TPS2375 from Texas Instruments Incorporated. The EVM is designed to look like the front end of any Power Over Ethernet (PoE) Powered Device (PD) module. An RJ-45 connector is provided to connect directly to an Ethernet cable having a Power Sourcing Equipment(PSE) driving (...)

The HPA028 EVM facilitates easy evaluation of the TPS2375 PD controller. The EVM features include:
  • IEEE802.3af Compliant Powered Device Front End
  • Uses TPS2375D IEEE802.3af PoE PD Controller
  • Input and Output Capacitors
  • Gigabit Ethernet Application
  • Dual DUT Footprint
  • Power-Good Indicator LED
  • Connection for (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
Free Tool: TPS2375/77 Design-in Calculator
TPS2375OR77CALC — This calculator spreadsheet will aid in designing circuits with the TPS2375 and TPS2377. Simply enter the input voltage, the output power range, the output capacitance, and other application specifications, the values of the required external components for the TPS2375 or TPS2377, are automatically (...)
SLUC480.ZIP (452 KB)
SLVC065.ZIP (120 KB)

Reference designs

Isolated, Low Cost, Non-Synchronous PoE PD Power Supply Reference Design
PMP717 — PMP717 is a low cost, isolated, non-synchrounous Power-over-Ethernet PD power supply reference design intended to ease implementation of PoE in devices such as IP phones, WLAN AP's and security cameras. The reference design uses a TPS2375 PoE Powered Device Controller to implement all necessary (...)
Class 3 Multi-Output Flyback Converter for PoE PD Application Reference Design
PMP841 — PMP841 is a high efficiency, non-isolated Power-over-Ethernet PD power supply reference design intended to ease implementation of PoE in devices such as IP phones, WLAN AP's and security cameras. The reference design uses a TPS2375 PoE Powered Device Controller to implement all necessary detection (...)

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
TSSOP (PW) 8 View options

Ordering & quality

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