TPS2420RSAR

Hot Swap Controllers Overview

The TPS2420RSAR is a hot-swap voltage controller manufactured by Texas Instruments, designed for safe insertion and removal of live circuit boards. It integrates an N-channel MOSFET driver with current limiting and thermal protection features. The device operates within a supply voltage range of 3 V to 20 V and supports a maximum continuous current limit of 5 A. It is housed in a 16-pin QFN package (4x4 mm) suitable for surface-mount assembly. The component functions across an extended temperature range from -40°C to +125°C and includes programmable fault timeout and automatic retry capabilities.

Hot Swap Controllers Feature Summary

• Integrates internal FET driver with adjustable current limiting and thermal shutdown protection
• Supports automatic retry and lockout fault modes for robust system recovery
• Features undervoltage lockout (UVLO) and power-fail detection for reliable operation

Hot Swap Controllers Applications

• Hot-swap backplane systems requiring safe board insertion
• Peripheral cards in industrial control environments
• Telecommunications equipment with live replacement requirements

Hot Swap Controllers Procurement Notes

Verify the suffix 'R' indicates reel packaging configuration when ordering. Confirm RoHS compliance status through official datasheets as specifications may vary by revision. Ensure ESD handling procedures are followed due to moisture sensitivity level 2 classification. Cross-reference part numbers carefully to distinguish between RSAR and RSAT variants based on packaging needs.

Hot Swap Controllers Selection Notes

Select this component for applications requiring integrated hot-swap control without external discrete MOSFETs. Consider the 16-QFN package constraints for PCB layout and thermal dissipation. Evaluate the 5 A current limit against peak load requirements. Verify compatibility with system voltage ranges between 3 V and 20 V before integration into the design.

Hot Swap Controllers Part Context

This part belongs to the TPS2420 series of hot-swap controllers from Texas Instruments. It serves as a general-purpose solution for protecting circuits during live insertion. The series offers configurable fault responses and is commonly used in systems where maintenance without power-down is critical. It complements other PMIC offerings by providing dedicated power path management.

Hot Swap Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer guidelines for direct replacements or pin-compatible alternatives if redesign is necessary.