TPS2343DDP

Hot Swap Controllers Overview

The TPS2343DDP is a Power over Ethernet (PoE) controller manufactured by Texas Instruments, designed for IEEE 802.3af-compliant applications. It integrates a high-voltage switch and control logic to manage power delivery from a PSE. The device operates with an input voltage range of 37.5 V to 57 V and provides a regulated 5 V output at up to 1 A. Key electrical parameters include a quiescent current of 1.6 mA and a shutdown current of 1 µA. It features thermal shutdown protection and operates within a temperature range of -40°C to +85°C. The component is housed in an 8-pin SOIC package.

Hot Swap Controllers Feature Summary

• Integrates a high-voltage switch and control logic for PoE applications
• Provides regulated 5 V output with overcurrent protection
• Includes thermal shutdown protection for enhanced reliability

Hot Swap Controllers Applications

• Power sourcing equipment (PSE) controllers
• IEEE 802.3af compliant network devices
• VoIP phones and wireless access points

Hot Swap Controllers Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation to ensure correct package type and temperature rating. Confirm that the component meets specific IEEE 802.3af standards required by your design. Check for any recent lifecycle status changes or obsolescence notices directly from the manufacturer before finalizing procurement plans.

Hot Swap Controllers Selection Notes

Select this component for designs requiring a compact, integrated solution for 802.3af PoE power sourcing. Ensure the PCB layout supports the thermal requirements of the SOIC-8 package. Verify that the input voltage range aligns with the available power bus voltages in the target application environment.

Hot Swap Controllers Part Context

The TPS2343 belongs to Texas Instruments' family of PoE controllers, specifically targeting cost-sensitive and space-constrained applications. It simplifies the design of power sourcing equipment by combining the switch and control functions into a single IC, reducing the component count compared to discrete solutions.

Hot Swap Controllers Replacement Considerations

Consult the official TI datasheet for a list of recommended replacements or pin-compatible alternatives. Verify compatibility with existing circuit designs before substituting.