TPS23521PWR

Hot Swap Controllers Overview

The TPS23521PWR is a low-side hot swap controller manufactured by Texas Instruments, designed for -48V telecom applications. It operates within a supply voltage range of 0V to 20V and supports an operating temperature from -40°C to 125°C. The device is housed in a 16-TSSOP package with a width of 4.40mm. Key programmable features include current limiting, fault timeout, overvoltage protection (OVP), and undervoltage lockout (UVLO). It includes automatic retry functionality and is intended for use in network routers and switches.

Hot Swap Controllers Feature Summary

• Provides surge current control and output short-circuit protection for hot swap operations
• Features dual hot swap gate drivers to support various power levels
• Includes lightning surge support with input clamping capabilities

Hot Swap Controllers Applications

• -48V interface systems
• Wireless infrastructure equipment
• Telecom infrastructure boards

Hot Swap Controllers Procurement Notes

Verify the specific package suffix 'PWR' corresponds to the Tape and Reel format rather than the 'PWT' TSSOP variant when sourcing. Confirm RoHS3 compliance and MSL Level 1 status for assembly planning. Ensure the design accounts for the external FET requirements as the controller lacks an internal switch. Cross-reference the EVM-001 documentation for reference circuit implementation details.

Hot Swap Controllers Selection Notes

Select this component for -48V telecom environments requiring robust hot swap management without integrated switching elements. The device suits designs needing programmable protection thresholds via external components. Consider the 16-TSSOP footprint constraints and thermal dissipation requirements for the external MOSFETs. Validate that the UVLO and OVP settings align with the specific system voltage tolerances.

Hot Swap Controllers Part Context

This part belongs to the TPS2352x family of high-performance hot swap controllers from Texas Instruments. It is specifically optimized for low-side switching in -48V telecommunications architectures. The series supports various configurations including single and dual OR-ing options in related models like the TPS23523 and TPS23525.

Hot Swap Controllers Replacement Considerations

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