TPS2384PAPR

Overview

The TPS2384PAPR is a quad-channel Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3af standards, designed for Ethernet applications. It integrates four independent power switches within a single package to manage power delivery over twisted-pair cabling. The device features a maximum current limit of 450 mA per channel and a typical on-resistance of 1.8 Ohms. It operates from a 48 V supply with a quiescent current of 10 mA. The component supports surface-mount installation in a 64-pin HTQFP package and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates four independent power channels for simultaneous PoE management
• Complies with IEEE 802.3af classification and detection protocols
• Includes internal protection mechanisms against short circuits and overloads

Applications

• Power sourcing equipment for IP cameras and VoIP phones
• Wireless access point power distribution systems
• Ethernet switch power management modules

Procurement Notes

Verify the specific suffix 'PAPR' corresponds to the HTQFP-64 package and reel/cut-tape availability. Confirm RoHS compliance status through official documentation. Ensure moisture sensitivity level handling procedures are followed during assembly. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring four isolated PoE ports under the 802.3af standard. Consider the 1.8 Ohm on-resistance for thermal management calculations. Evaluate the 64-pin HTQFP footprint constraints against PCB layout requirements. Compare against higher-power alternatives if 802.3at support is necessary.

Part Context

This part belongs to the Texas Instruments TPS2384 family of PoE controllers. It serves as a centralized solution for managing power injection in network infrastructure. The device simplifies design by combining control logic and power switching into one integrated circuit, reducing bill of materials compared to discrete solutions.

Replacement Considerations

The TPS23841PAPR offers similar functionality but may differ in current limits or feature sets. Verify pin compatibility and electrical specifications before substitution. Check for updated revisions or alternative packages within the same product line.