TPS2384APAP

Overview

The TPS2384APAPR is a quad-port Power Sourcing Equipment (PSE) power manager compliant with the IEEE 802.3af standard, designed for Ethernet over LAN applications. It operates from a single 48V supply and integrates four independent ports, each featuring an internal switch and current sense resistor to minimize external component count. The device supports automatic, semi-automatic, and power management modes, utilizing 15-bit A/D converters for precise monitoring of port resistance, voltage, current, and chip temperature. It functions within a wide operating temperature range of -40°C to +125°C and includes protection features such as over-temperature shutdown and controlled current ramping.

Feature Summary

• Integrates four independent PoE ports with built-in switches and detection resistors
• Supports automatic, semi-automatic, and power management operational modes
• Includes 15-bit analog-to-digital converters for comprehensive port and thermal monitoring
• Features controlled current ramping to reduce EMI and manage capacitive loads

Applications

• IEEE 802.3af compliant Power Sourcing Equipment designs
• Quad-port Ethernet switch power distribution systems
• Industrial networking infrastructure requiring wide temperature operation
• PoE midspan injectors and endspan controllers

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and environmental rating. Ensure compatibility with your system's I2C interface requirements and thermal management strategy. Confirm that the selected variant meets all necessary regulatory standards for your target market before finalizing procurement decisions.

Selection Notes

Select this component when designing multi-port PoE systems requiring integrated switching and sensing capabilities. It is suitable for applications needing robust compliance with IEEE 802.3af standards without external discrete FETs. Consider the HTQFP-64 package constraints and thermal dissipation requirements for high-density layouts.

Part Context

This part belongs to the TPS2384 family of PoE PSE managers from Texas Instruments. It serves as a core controller for powering remote devices over Ethernet cabling. The series provides scalable solutions for network equipment manufacturers seeking to integrate PoE functionality with minimal external components while maintaining strict adherence to industry standards.

Replacement Considerations

TPS2384PAPRG4 is a lead-free version of the same functional device. Verify pinout and electrical specifications match exactly before substitution.