TPS23881ARTQT

Overview

The TPS23881ARTQT is an eight-channel Power Sourcing Equipment (PSE) controller designed for IEEE 802.3bt Type-4 PoE applications. It supports four-pair power delivery with a maximum output power of 90 W per channel. The device features a low on-resistance of 200 mOhms and operates within a supply voltage range of 3.3 V. It functions reliably across an extended temperature range from -40°C to +125°C. Integrated current limiting is set at 75 mA, and the quiescent operating current is 6 mA. The component is housed in a VQFN-56 package.

Feature Summary

• Supports high-power four-pair Type-4 PoE standards for up to 90 W output
• Integrates low on-resistance switches to minimize conduction losses
• Includes built-in current limiting protection for channel safety

Applications

• High-power wireless access points requiring Type-4 classification
• Outdoor surveillance camera systems utilizing four-pair power
• Digital signage displays powered via Ethernet infrastructure

Procurement Notes

Verify the complete part number including the ARTQT suffix against official Texas Instruments documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the intended application environment falls within the specified -40°C to +125°C operating temperature range. Ensure design compatibility with the 3.3 V control supply voltage. Check for moisture sensitivity levels and reflow soldering profile requirements prior to assembly.

Selection Notes

Select this component when designing systems requiring full IEEE 802.3bt Type-4 compliance with four-pair power delivery. It is suitable for applications demanding high power density per channel without external optocouplers. Consider the VQFN-56 package size constraints during PCB layout. Evaluate thermal management needs given the 90 W output capability and 200 mOhm switch resistance.

Part Context

This device belongs to the TPS23881 series of PoE PSE controllers. It complements other Texas Instruments PoE solutions by offering higher power capabilities compared to earlier Type-1 or Type-2 devices. The series focuses on simplifying high-power Ethernet power distribution designs through integrated switching and control logic.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.