TPS23754PWPR

Overview

The TPS23754PWPR is a high-power, high-efficiency Power over Ethernet (PoE) interface and DC/DC controller designed for IEEE 802.3at Type 2 applications. It supports up to 30W of power delivery with an integrated internal switch featuring a maximum on-resistance of 750 milliohms. The device operates within a voltage range of 0V to 57V and includes programmable current limiting set at 850mA minimum. It complies with both 802.3af and 802.3at standards, offering thermal shutdown and auto-retry fault responses in a 20-pin HTSSOP package.

Feature Summary

• Integrates PoE interface logic with a synchronous DC/DC controller for compact powered device designs
• Supports primary side adapter priority and second gate drive capabilities for enhanced efficiency
• Includes built-in thermal shutdown and auto-retry mechanisms for robust fault protection

Applications

• High-power IEEE 802.3at Powered Devices
• Wireless access points requiring elevated power budgets
• IP cameras with PTZ functionality
• Industrial IoT edge nodes

Procurement Notes

Verify the complete part number including the PWPR suffix to confirm the specific tape-and-reel packaging configuration. Ensure compatibility with the target PCB footprint for the 20-HTSSOP package. Confirm that the design accounts for the specified operating temperature range of -40°C to +125°C. Cross-reference the datasheet revision history for any recent changes to electrical characteristics or pin definitions before finalizing procurement.

Selection Notes

Select this component when designing systems requiring compliance with IEEE 802.3at Type 2 standards for power levels up to 30W. It is suitable for applications needing integrated switching regulation to minimize external component count. Consider the 750mΩ internal switch resistance for thermal management calculations. This controller is appropriate for space-constrained designs where combining PoE detection with DC/DC conversion is required.

Part Context

This device belongs to the TPS2375x family of PoE controllers from Texas Instruments. It serves as a specialized solution for high-power Ethernet applications, bridging the gap between standard PoE interfaces and dedicated DC/DC converters. The family includes variants supporting different power levels and package options, with the TPS23754 specifically targeting the higher power requirements of modern networked devices.

Replacement Considerations

Public confirmed substitute part numbers include TPS23756.