TPS2377DRG4

Overview

The TPS2377DRG4 is a Powered Device 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 features a maximum on-resistance of 1 Ohm. The device supports an output power of 12.95 W with a current limit of 405 mA. It functions reliably across a temperature range of -40°C to +85°C and utilizes an SOIC-8 surface-mount package.

Feature Summary

• Complies with IEEE 802.3af PoE Powered Device standards
• Integrates high-voltage power switch with control logic
• Provides comprehensive protection against fault conditions

Applications

• Power over Ethernet powered devices
• Network infrastructure equipment
• VoIP phones and wireless access points

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's official documentation to confirm lead-free status and RoHS compliance details. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Confirm that the operating voltage range aligns with your system's PoE power sourcing equipment specifications before finalizing procurement.

Selection Notes

Select this component for designs requiring strict adherence to IEEE 802.3af protocols. The integrated power switch simplifies bill of materials by eliminating external MOSFETs. Consider the thermal performance in the SOIC-8 package when designing heat dissipation paths for high-power applications up to 12.95 W.

Part Context

This part belongs to the Texas Instruments TPS2377 series of PoE controllers. It serves as a complete solution for powering network devices via Ethernet cables. The DRG4 designation indicates a specific tape-and-reel packaging variant suitable for automated surface-mount assembly processes.

Replacement Considerations

TPS2376DR is a compatible alternative within the same product family offering similar functionality.