TPS23758RJJT

Overview

The TPS23758RJJT is a Powered Device (PD) controller from Texas Instruments, compliant with the IEEE 802.3at PoE standard. It integrates a power switch and control logic for Ethernet applications. The device operates within a supply voltage range of 0 V to 57 V and supports current limiting up to 405 mA. It features a maximum on-resistance of 1 ohm and functions reliably across an operating temperature range of -40°C to +85°C. Packaged in an SOIC-8 format, it is designed for surface-mount installation.

Feature Summary

• Complies with IEEE 802.3at Power over Ethernet standards
• Integrates power switch and control circuitry for powered devices
• Supports wide input voltage operation up to 57 V

Applications

• IEEE 802.3at Powered Device implementations
• PoE LAN interface circuits
• Ethernet-powered network equipment

Procurement Notes

Verify the specific suffix 'RJJT' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the required operating temperature range and voltage ratings for the target application design before finalizing procurement orders.

Selection Notes

Select this component for designs requiring integrated PoE PD functionality without external optocouplers. Compare against the TPS2375 series for legacy 802.3af compatibility if lower power requirements exist. Confirm that the SOIC-8 footprint aligns with the PCB layout constraints and thermal management strategies.

Part Context

This part belongs to the TPS23758 family of power switch ICs designed for PoE applications. It serves as a solution for powering network devices via Ethernet cables, combining switching and control capabilities in a single compact package suitable for space-constrained electronic designs.

Replacement Considerations

The TPS2375DR and TPS2375PWR-1 are documented alternatives within the same product family, offering similar PoE PD controller functionality.