Calculation tool
Data sheet
TPS2375
- 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
- APPLICATIONS
- VoIP Phones
- WLAN Access Points
- Security Cameras
- Internet Appliances
- POS Terminals
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 www.ti.com.
Technical documentation
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View all 12 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS237x: IEEE 802.3af PoE Powered Device Controllers datasheet (Rev. B) | 25 Apr 2008 | |
| Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | 19 Jul 2021 | |
| Application note | PoE PD Schematic Review Guidelines | PDF | HTML | 29 Apr 2021 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Application note | Lightning Surge Considerations for PoE Powered Devices | 30 Apr 2015 | ||
| Application note | Designing an EMI Compliant PoE with Isolated Flyback | 20 May 2008 | ||
| Application note | Practical Guidelines EMI Compliant PoE | 27 Mar 2008 | ||
| Application note | 25-W, High-Power PoE Using the TPS2376-H | 13 Oct 2006 | ||
| Application note | Using Standard Power-Over-Ethernet Controllers for High-Powered Devices | 07 Apr 2006 | ||
| Application note | High Power PoE PD Using the TPS2375/77-1 | 28 Feb 2006 | ||
| Application note | Wall Adapter Powers IEEE 802.3af Powered Device | 01 Feb 2006 | ||
| Application note | Powered Device Controllers Comparison | 22 Apr 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS2375EVM — TPS2375 IEEE802.3af POE Powered Device Evaluation Module
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) (...)
User guide: PDF
Calculation tool
TPS2375OR77CALC — TPS2375/TPS2377 Design-in Calculation Tool
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 (...)
Supported products & hardware
Products
Powered devices
Hardware development
Evaluation board
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 | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
Ordering & quality
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