TPS2384PJDR

Overview

The TPS2384PJDR is a quad-port Power Sourcing Equipment (PSE) power manager compliant with the IEEE 802.3af standard. It integrates four independent channels, each featuring an internal switch and current sense resistor for precise power delivery to Powered Devices (PDs). The device operates within a supply voltage range of up to 48 V and supports a maximum current limit of 450 mA per channel. With a typical on-resistance of 1.8 Ohms, it ensures efficient power transfer. Designed for robust industrial environments, it functions reliably across a temperature range from -40°C to +125°C. The component is housed in a 64-pin HTQFP package.

Feature Summary

• Integrates four independent power management channels with built-in switches and sense resistors
• Fully compliant with IEEE 802.3af PoE standards for standardized power sourcing
• Provides comprehensive protection mechanisms including over-current and thermal shutdown

Applications

• Quad-port Ethernet switches requiring integrated PSE functionality
• Wireless access points needing centralized power management
• IP camera systems utilizing PoE infrastructure

Procurement Notes

Verify that the specific order matches the TPS2384PJDR designation, noting the PJDR suffix indicates a tape-and-reel packaging format. Confirm the manufacturer is Texas Instruments to ensure authenticity. Check for RoHS compliance status as indicated in official documentation. Ensure the receiving facility has appropriate ESD handling procedures due to moisture sensitivity classification. Validate that the application environment stays within the specified -40°C to +125°C operating temperature limits.

Selection Notes

Select this component when a design requires four isolated PoE ports managed by a single controller. It is suitable for applications demanding IEEE 802.3af compliance without external discrete switches. Consider the HTQFP-64 package constraints for PCB layout. Evaluate the 450 mA current limit against the maximum power requirements of connected devices. Ensure the system architecture can accommodate the thermal dissipation characteristics associated with the integrated FETs.

Part Context

This part belongs to the TPS2384 family of PoE controllers. It serves as a central power manager for multi-port Ethernet networks. The series is designed to simplify PSE implementation by integrating critical analog and digital control functions. It replaces complex discrete solutions, reducing board space and component count while maintaining standard compliance.

Replacement Considerations

The TPS2384PJDR is functionally equivalent to the TPS2384PJDR variant. Verify pin compatibility before substitution. Ensure the replacement maintains the same 64-pin HTQFP footprint and electrical specifications.