TPS2377D-1G4

Overview

The TPS2377D-1G4 is an IEEE 802.3af compliant Powered Device controller manufactured by Texas Instruments in an 8-SOIC package. 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 low-side switch with a maximum on-resistance of 1 Ohm and a current limit of 405 mA. Operating supply current is specified at 240 uA, with a functional temperature range spanning from -40°C to +85°C.

Feature Summary

• Fully supports the IEEE 802.3af specification for Power over Ethernet applications
• Integrates a low-side switch rated for 100 V with auto-retry functionality
• Designed specifically for Powered Device (PD) control in PoE networks

Applications

• VoIP Phones
• WLAN Access Points
• Security Cameras

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's official documentation to confirm lead-free compliance status and exact ordering details. Ensure the SOIC-8 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring strict adherence to the IEEE 802.3af standard. The integrated switch simplifies circuit design by reducing external component count. Consider the 8-SOIC package constraints and thermal performance when evaluating suitability for the intended application environment.

Part Context

This part belongs to the TPS2377 family of PoE controllers. It serves as a dedicated solution for managing power delivery in networked devices. The series provides standardized interfaces for detecting and classifying powered devices within a PoE infrastructure.

Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers. Verify pin compatibility and electrical specifications before considering alternative components.