LTC4251CS6#TRPBF

Hot Swap Controllers Overview

The LTC4251CS6#TRPBF is a negative voltage hot swap controller manufactured by Analog Devices Inc. It operates within a supply voltage range of -3V to -48V and features an integrated 0.5A switch with current limit protection. The device includes programmable soft-start, fault timeout, and undervoltage lockout functions. It is housed in a compact SOT-23-6 surface-mount package and draws a typical operating supply current of 800 uA. This component is designed for safe insertion and removal of boards from live backplanes.

Hot Swap Controllers Feature Summary

• Provides controlled power-up sequencing via programmable soft-start to prevent bus collapse during board insertion.
• Integrates overcurrent protection with adjustable current limiting and fault timeout to safeguard the system.
• Supports negative voltage hot swap applications with built-in undervoltage lockout for reliable operation.

Hot Swap Controllers Applications

• Safe insertion and removal of circuit boards from live negative voltage backplanes
• Protection of peripheral cards in telecommunications and industrial equipment
• Hot swap controllers for systems requiring controlled power-up sequences

Hot Swap Controllers Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure compatibility with negative voltage requirements as this controller is designed for -48V systems. Check current availability status through authorized distributors, as lead times may vary. Confirm RoHS compliance details if required for specific regulatory standards. Always refer to the latest datasheet for thermal and electrical limits.

Hot Swap Controllers Selection Notes

Select this component when designing systems that require negative voltage hot swap capabilities. It is suitable for applications needing integrated current limiting and soft-start functionality without external switches. Consider the SOT-23-6 package size for space-constrained designs. Evaluate the 800 uA supply current for low-power standby requirements. Ensure the input voltage range matches the system's negative rail specifications.

Hot Swap Controllers Part Context

This part belongs to the LTC4251 series of hot swap controllers from Analog Devices. It is specifically engineered for negative voltage applications, contrasting with positive voltage counterparts like the LTC4250. The CS6 variant indicates a commercial temperature range and SOT-23-6 packaging. It serves as a critical interface component for maintaining system integrity during maintenance or expansion of live electronic systems.

Hot Swap Controllers Replacement Considerations

Direct replacements include other parts from the LTC4251 family such as the LTC4251BCS6-2#TRMPBF, which shares similar functionality but may differ in specific parameter tolerances or package variants. Verify pin compatibility and electrical characteristics before substitution. No other direct cross-model substitutes are confirmed in public documentation.