TPS23521PWT

Hot Swap Controllers Overview

The TPS23521PWT is a low-side hot-swap controller manufactured by Texas Instruments, designed for -48V telecommunications applications. It operates within an ambient temperature range of -40°C to +125°C and utilizes a 16-TSSOP surface-mount package. The device features integrated programmable protections including current limiting, fault timeout, overvoltage protection (OVP), and undervoltage lockout (UVLO). It supports automatic retry functionality upon fault clearance and provides a dedicated gate drive output for external field-effect transistors.

Hot Swap Controllers Feature Summary

• Integrated programmable protection mechanisms for current limiting, fault timeout, overvoltage, and undervoltage conditions
• Automatic retry capability that re-attempts power-up following the resolution of fault events
• Dedicated high-current gate driver output optimized for controlling external N-channel MOSFETs

Hot Swap Controllers Applications

• -48V telecommunications infrastructure systems
• Network routers and switching equipment
• Wireless base station hardware

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'PWT' corresponds to the cut-tape or reel packaging variant required for your assembly process. Confirm the operating temperature grade matches the application environment constraints. Ensure the 16-TSSOP footprint aligns with the PCB layout specifications. Cross-reference the datasheet revision date to confirm compatibility with existing design documentation.

Hot Swap Controllers Selection Notes

Select this component for -48V systems requiring robust low-side hot-swap management. It is suitable for designs needing programmable fault response without internal switch integration. Evaluate the external FET selection against the gate drive capabilities. Consider thermal dissipation requirements based on the TSSOP-16 package limitations in enclosed environments.

Hot Swap Controllers Part Context

This part belongs to the TPS2352x family of hot-swap controllers from Texas Instruments. It serves as a specialized solution for protecting sensitive electronics during insertion or removal in live backplane environments. The device complements other PMIC offerings by focusing exclusively on input power rail management and fault isolation.

Hot Swap Controllers Replacement Considerations

TPS23521PWR is available as an alternative packaging option within the same functional specification.