TPS2377DR

Overview

The TPS2377DR is a single-port IEEE 802.3af-compliant Power over Ethernet (PoE) PD controller manufactured by Texas Instruments. It integrates a high-voltage DC-DC converter, power switch, and management logic to deliver up to 15.4W of output power from standard Ethernet cabling. The device supports both Type 1 and Type 2 classification levels, enabling compatibility with various PoE midspan injectors and switches. It features programmable output voltage and current limits, ensuring safe operation under varying load conditions while maintaining strict adherence to IEEE standards for power delivery over twisted-pair networks.

Feature Summary

• Integrates high-voltage DC-DC conversion and power switching for efficient PoE power delivery
• Supports IEEE 802.3af Type 1 and Type 2 classification for broad network compatibility
• Includes programmable output voltage and current limiting for customized power management
• Provides comprehensive protection mechanisms against overvoltage, overcurrent, and thermal events

Applications

• IP cameras and video surveillance systems requiring centralized power distribution
• Wireless access points needing reliable PoE-powered connectivity
• VoIP phones integrated into enterprise communication networks
• IoT sensors deployed in environments with limited power infrastructure

Procurement Notes

Verify the exact part number suffix (e.g., DR) to confirm package type and temperature range. Ensure compliance with RoHS directives if required for your application. Cross-reference with official Texas Instruments documentation to validate pinout configurations and electrical specifications before procurement.

Selection Notes

Consider the TPS2377DR when designing PoE-powered devices requiring IEEE 802.3af compliance. Evaluate its integration capabilities for reducing component count and simplifying PCB layout. Assess thermal performance requirements based on expected power dissipation and operating environment constraints.

Part Context

The TPS2377 series belongs to Texas Instruments' portfolio of PoE PD controllers designed for seamless integration into Ethernet-based systems. These components enable efficient power transfer over existing network cables, supporting applications that demand reliable and scalable power solutions without additional wiring infrastructure.

Replacement Considerations

Check for direct substitutes like the TPS2376 or TPS2375 if similar functionality is needed. Verify pin-to-pin compatibility and electrical parameter alignment before substituting any alternative parts.

FAQ

What classification levels does the TPS2377DR support?

It supports both Type 1 and Type 2 classification levels as defined by the IEEE 802.3af standard.

Can the output voltage be adjusted?

Yes, the output voltage is programmable, allowing customization based on specific device requirements.