TPS23753PWRG4

Overview

The TPS23753PWRG4 is a Powered Device (PD) controller and power supply controller compliant with IEEE 802.3-2005 standards, designed for isolated converter topologies. It operates within an input voltage range of 0 V to 57 V, supporting classification currents between 1.8 mA and 2.4 mA at Rclass = 1270 Ω. The device features a current limit of 405 mA to 495 mA and includes integrated surge current limiting ranging from 90 mA to 190 mA. Packaged in a 14-pin TSSOP, it supports operating temperatures from -40 °C to +125 °C.

Feature Summary

• Complies with IEEE 802.3-2005 Power over Ethernet standards for powered device applications
• Optimized specifically for isolated flyback converter topologies
• Integrates classification logic and current limiting functions
• Supports wide input voltage ranges suitable for PoE and adapter inputs

Applications

• IP telephony systems
• Wireless access points
• Wired IP cameras

Procurement Notes

Verify the specific package variant and temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure compatibility with the target isolated topology design requirements before integration into the final product architecture.

Selection Notes

Select this component for designs requiring strict adherence to IEEE 802.3-2005 protocols. It is suitable for applications needing integrated classification and isolation control. Consider thermal performance limits when designing for high ambient temperatures within the specified operational range.

Part Context

This part belongs to the Texas Instruments TPS2375x family of PoE controllers. It serves as a specialized interface solution for powering networked devices via Ethernet cables or local adapters while maintaining protocol compliance.

Replacement Considerations

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