TPS23881RTQR

Overview

The TPS23881RTQR is an eight-channel Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3bt Type 4 standards, designed for high-power PoE applications. It operates within a -40°C to +125°C temperature range and utilizes a VQFN-56 package. Key electrical specifications include a maximum on-resistance of 200 mOhms, a current limit of 75 mA, and a quiescent supply current of 6 mA at a 3.3 V operating voltage. The device supports up to 90 W output power per port, enabling efficient energy delivery over Ethernet cabling.

Feature Summary

• Supports IEEE 802.3bt Type 4 classification for high-power data transmission
• Integrates eight independent channels for multi-port switch designs
• Includes built-in protection mechanisms against short circuits and overloads

Applications

• High-density PoE+ and PoE++ network switches
• Wireless access points requiring elevated power budgets
• IP surveillance camera infrastructure systems

Procurement Notes

Verify the specific suffix RTQR to confirm the tape-and-reel packaging configuration and moisture sensitivity level prior to ordering. Ensure compatibility with your PCB footprint design for the VQFN-56 package. Cross-reference the manufacturer datasheet for updated RoHS compliance status and recommended soldering profiles to guarantee assembly reliability.

Selection Notes

Select this component when designing systems requiring full 802.3bt Type 4 compliance with integrated channel management. Consider the thermal performance characteristics inherent to the VQFN-56 package for heat dissipation requirements. Evaluate the 200 mOhm on-resistance impact on overall system efficiency compared to alternative solutions in the same product family.

Part Context

This part belongs to the TPS23881 series of PoE PSE controllers from Texas Instruments. It serves as a specialized solution for powering end devices via standard Ethernet cables while maintaining strict adherence to international networking standards for power delivery.

Replacement Considerations

The TPS23881RTQT is a verified pin-compatible alternative within the same series, offering identical functionality with potential differences in packaging or lot traceability.