TPS2384PAPRG4

Overview

The TPS2384PAPRG4 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 with a maximum on-resistance of 1.8 Ohms and a current limit of 450 mA per channel. Operating at a supply voltage of 48 V, the device functions within an extended temperature range from -40°C to +125°C. Housed in a 64-pin HTQFP package, it features a quiescent supply current of 10 mA. The component supports surface-mount installation and includes moisture sensitivity ratings for standard reflow processes.

Feature Summary

• Integrates four independent power switches for simultaneous PoE port management
• Complies with IEEE 802.3af classification and detection protocols
• Includes integrated protection mechanisms against overcurrent and thermal events

Applications

• Quad-port Ethernet switches
• Power-over-Ethernet midspan injectors
• Network infrastructure equipment requiring 802.3af compliance

Procurement Notes

Verify the G4 suffix indicates RoHS compliance and green material status as per Texas Instruments specifications. Confirm the HTQFP-64 package dimensions match your PCB footprint requirements. Ensure design accounts for the specified operating temperature range and humidity sensitivity level during assembly. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards.

Selection Notes

Select this component when designing systems requiring four isolated PoE ports under the 802.3af standard. The integrated switch architecture reduces external component count compared to discrete solutions. Consider the 64-pin HTQFP package for its thermal performance and pin density. Verify that the 450 mA current limit aligns with the connected Powered Device (PD) class requirements.

Part Context

This part belongs to the TPS2384 family of PoE controllers from Texas Instruments. It serves as a specialized solution for managing power distribution in network hardware. The device complements other PMIC offerings by focusing specifically on Ethernet power sourcing logic and switch control.

Replacement Considerations

The TPS2384PAPR is a non-RoHS variant of the same functional device. Check if the lead-free requirement mandates the G4 suffix version. No direct cross-model substitutes are confirmed in public documentation.