TPS23753PWR

Overview

The TPS23753PWR is a Power over Ethernet (PoE) Powered Device controller and DC/DC converter manufactured by Texas Instruments. It complies with the IEEE 802.3at-2009 standard for Type 2 PDs, supporting up to 25.5W of output power. The device integrates a high-voltage switch with a maximum on-resistance of 1.2 ohms and operates within an input voltage range of 0V to 57V. It features a current limit of 405mA and functions reliably across an extended temperature range from -40°C to +125°C. The component is housed in a 14-pin TSSOP package.

Feature Summary

• Complies with IEEE 802.3at-2009 Type 2 PoE standards for powered devices
• Integrates a high-voltage switch with low on-resistance for efficient power transfer
• Includes built-in DC/DC controller optimized for isolated flyback converter topologies
• Supports Class 4 classification for higher power delivery applications

Applications

• IP telephony systems requiring integrated power and data connectivity
• Wireless access points needing reliable PoE power sourcing
• Network surveillance cameras utilizing high-power requirements
• Industrial IoT edge nodes operating in extreme temperatures

Procurement Notes

Verify the specific suffix 'PWR' indicates the tape-and-reel packaging format when ordering. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the supply chain source provides valid traceability documentation. Check for any lead time variations associated with the specific manufacturing lot. Validate that the procurement channel is authorized to prevent counterfeit components.

Selection Notes

Select this component when designing systems requiring IEEE 802.3at Type 2 compliance. It is suitable for applications demanding up to 25.5W of power from a single pair or all pairs. Consider the TSSOP-14 package constraints for PCB layout density. Evaluate thermal management needs given the 1.2-ohm switch resistance at high currents. Compare against legacy 802.3af controllers if lower power budgets are acceptable.

Part Context

This part belongs to the Texas Instruments TPS2375 family of PoE interface controllers. The series includes variants like the TPS23753A and TPS23756, offering different feature sets for Type 1 and Type 2 applications. The TPS23753PWR specifically targets mid-power applications requiring robust integration of switching and control functions in a compact surface-mount package.

Replacement Considerations

The TPS23753PW is the tube-packaged equivalent of the same functional device. The TPS23753APWR offers enhanced specifications compared to the standard version. Verify pin compatibility and thermal performance when substituting with these variants.