TPS23882RTQT

Overview

The TPS23882RTQT is an eight-channel Power Sourcing Equipment (PSE) controller designed for IEEE 802.3bt Type-3 applications. It operates with a supply voltage of 48 V and functions within a temperature range of -40°C to +125°C. The device utilizes a QFN-56 surface-mount package and draws a typical operating current of 10 mA. It supports I2C communication and includes integrated SRAM for firmware updates, enabling compliance with evolving standards.

Feature Summary

• Supports autonomous power delivery modes without microcontroller intervention
• Features programmable SRAM for field firmware upgrades via I2C
• Integrates dedicated per-port ADC for continuous current monitoring
• Includes internal 200 mΩ current sense resistors

Applications

• Network video recorder systems
• Small business Ethernet switches
• Campus branch network infrastructure

Procurement Notes

Verify the specific suffix RTQT against the manufacturer datasheet to confirm the reel packaging configuration. Ensure the component meets RoHS requirements for your target market. Confirm that the QFN-56 package aligns with your PCB footprint design and thermal management strategy before finalizing procurement.

Selection Notes

Select this controller for high-density PoE deployments requiring Type-3 power levels. The integrated SRAM allows for future-proofing through software updates. Consider the internal sense resistor architecture when evaluating board space constraints versus external component costs. Verify compatibility with existing system firmware architectures.

Part Context

This component belongs to the Texas Instruments TPS2388 family of PoE controllers. It serves as an evolution in PSE technology by incorporating SRAM capabilities and refined sensing accuracy compared to earlier generations. The device is part of a broader ecosystem including evaluation modules like the TPS23882EVM series.

Replacement Considerations

The TPS23882B offers pin-to-pin compatibility and similar functionality. Check the specific suffix variations to ensure equivalent packaging and electrical characteristics before substitution.