TPS2376DDAR-HG4

Overview

The TPS2376DDAR-HG4 is a Powered Device (PD) controller compliant with the IEEE 802.3af standard, designed for high-power Power over Ethernet applications. It operates within a supply voltage range of 0 V to 57 V and supports a maximum output power of 12.95 W. The device features a current limit of 625 mA and a maximum on-resistance of 1 Ohm. It functions reliably across an operating temperature range from -40°C to +85°C. The component utilizes a SO-PowerPad-8 surface-mount package and draws a typical operating supply current of 240 uA.

Feature Summary

• Complies with IEEE 802.3af standards for Powered Devices
• Integrated low on-resistance FET reduces system thermal losses
• Includes programmable current limiting with fault protection
• Features automatic retry and thermal shutdown capabilities

Applications

• IP surveillance cameras
• WiMAX access point equipment
• Conference IP telephones
• Industrial medical devices

Procurement Notes

Verify the specific suffix 'G4' against official Texas Instruments documentation to confirm lead-free compliance status. Ensure the ordering part number matches the exact package type and tape-and-reel specifications required for your assembly process. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing procurement.

Selection Notes

Select this component for designs requiring IEEE 802.3af compliance with integrated power switching. The SO-PowerPad-8 package facilitates efficient heat dissipation for high-power PoE implementations. Consider the 625 mA current limit and 12.95 W output capability when sizing downstream power stages. Verify that the 0 V to 57 V input range aligns with your network infrastructure voltage levels.

Part Context

This part belongs to the TPS2376-H series of high-power PoE controllers developed by Texas Instruments. It serves as a complete solution for powering Ethernet-based devices without separate AC lines. The series integrates control logic and power switches to minimize external component count. It targets applications demanding robust protection and simplified startup sequences in industrial and commercial environments.

Replacement Considerations

The TPS2376DDA-H is listed as a potential replacement option. Verify pinout compatibility and electrical parameter equivalence before substitution.