TPS23841PJDR

Overview

The TPS23841PJDR is a quad-channel Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3af standards, designed for PoE applications. It integrates four internal power switches and supports a supply voltage range of 21.5V to 57V. The device features a maximum current limit of 650mA per channel and a typical on-resistance of 1.8 ohms. Operating temperatures span from -40°C to +125°C. It utilizes a 64-pin HTQFP package.

Feature Summary

• Integrates four independent power switches for quad-port Ethernet connectivity
• Complies with IEEE 802.3af Power over Ethernet standards
• Includes integrated management logic for port classification and power allocation

Applications

• Quad-port PoE network switches
• PoE midspan injectors
• Industrial Ethernet controllers

Procurement Notes

Verify the suffix PJDR indicates tape-and-reel packaging when ordering. Confirm the specific manufacturer part number matches the required RoHS compliance status. Ensure the datasheet revision aligns with your design requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring four isolated PoE ports within a single IC solution. Consider the thermal performance of the HTQFP-64 package for high-density layouts. Verify that the system input voltage remains within the specified 21.5V to 57V operational range.

Part Context

This part belongs to the Texas Instruments TPS2384x family of PoE controllers. It serves as a centralized management unit for powering remote devices over standard Ethernet cabling. The device simplifies board layout by integrating switch drivers and protection circuits.

Replacement Considerations

Check for TPS23841PAPR or TPS2384PAPR as potential pin-compatible alternatives within the same series. Verify package dimensions and electrical specifications match before substitution.