LT4200RUHG#PBF

Hot Swap Controllers Overview

The LT4200RUHG#PBF is a hot-swap electronic fuse integrating a controller, power MOSFET, and current sense resistor in a single package. It supports continuous operation at 50 A up to +85°C ambient temperature with a 57 A current limit accuracy of ±12%. The device features independent inrush current control, output-related foldback, and dynamic threshold adjustment via the ISET pin. It includes monitoring outputs for ground-referenced current sensing and MOSFET temperature, alongside protections for thermal limiting, overvoltage, undervoltage, and power good status.

Hot Swap Controllers Feature Summary

• Integrated solution combining hot-swap controller, power MOSFET, and current sense resistor
• Manufacturing-tested MOSFET Safe Operating Area (SOA) guarantee for hot-swap stress reliability
• Dynamic current limit threshold adjustment capability via external ISET pin
• Comprehensive protection suite including thermal limiting, overvoltage, undervoltage, and power good monitoring

Hot Swap Controllers Applications

• High availability server systems
• Solid state drive backplanes
• 5G communication infrastructure
• Industrial automation equipment
• Instrumentation systems

Hot Swap Controllers Procurement Notes

Verify the specific suffix PBF indicates lead-free compliance against the manufacturer's official documentation. Confirm the RUHG package type matches the required board layout constraints. Ensure the 50 A continuous current rating aligns with the system's thermal management capabilities. Validate that the 57 A current limit setting meets the circuit's fault protection requirements without nuisance tripping during normal operation transients.

Hot Swap Controllers Selection Notes

Select this component when integrated hot-swap protection is required for high-current applications. The built-in SOA guarantee simplifies design validation compared to discrete solutions. Consider the ISET pin flexibility if dynamic current limiting adjustments are necessary. Evaluate the compact co-package size benefits against available PCB real estate. Verify compatibility with the target bus voltage levels and operating temperature range specifications.

Hot Swap Controllers Part Context

This part belongs to Analog Devices' hot-swap eFuse family designed for safe insertion and removal from live backplanes. It replaces complex discrete designs by consolidating control logic, switching elements, and sensing into one unit. The series targets robust protection in critical infrastructure where uptime and component reliability are paramount.

Hot Swap Controllers Replacement Considerations

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