TPS2375PW-1

Overview

The TPS2375PW-1 is a Powered Device (PD) controller compliant with IEEE 802.3af standards, designed for Power over Ethernet applications. It operates within a supply voltage range of 0 V to 57 V and supports a maximum current limit of 405 mA. The device features a maximum on-resistance of 1 Ohm and delivers an output power of 12.95 W. It functions reliably across an operating temperature range from -40 °C to +85 °C, with a typical operating supply current of 240 uA. The component is housed in an 8-pin TSSOP package.

Feature Summary

• Complies with IEEE 802.3af PoE standards for powered device control
• Integrates power switch functionality with classification capabilities
• Supports wide input voltage operation suitable for PoE interfaces

Applications

• IEEE 802.3af Powered Device implementations
• Power over Ethernet LAN interface circuits
• PoE-powered network equipment controllers

Procurement Notes

Verify the specific suffix '-1' against the official Texas Instruments datasheet to confirm pinout or functional variations compared to the standard TPS2375PWR variant. Ensure the TSSOP-8 package dimensions match the target PCB footprint. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select this component for designs requiring strict adherence to IEEE 802.3af Type 1 power levels. The 405 mA current limit and 1 Ohm on-resistance define the thermal and efficiency boundaries. Consider the 240 uA operating current for low-power standby requirements. Validate that the 12.95 W output capability meets the downstream load demands within the specified temperature range.

Part Context

This part belongs to the TPS2375 series of PoE PD controllers from Texas Instruments. While the TPS23751 and TPS23752 integrate DC-DC flyback controllers and support higher 802.3at standards, the TPS2375PW-1 focuses on basic 802.3af classification and switching. It serves as a foundational interface solution for simpler PoE endpoints without integrated conversion stages.

Replacement Considerations

The TPS2375PWR is a direct pin-compatible alternative within the same series. Verify if the '-1' suffix indicates a specific tape-and-reel or packaging variation rather than a functional difference. Cross-reference with TPS2375DR for SOIC-8 package options if lead-free or different mounting styles are required.