LT1641CS8#PBF

Hot Swap Controllers Overview

The LT1641CS8#PBF is a positive high-voltage hot-swap controller manufactured by Analog Devices Inc. It operates within a supply voltage range of 9V to 80V and features a single channel in an 8-SOIC package. The device includes programmable current limiting, overvoltage protection, undervoltage lockout, and slew rate control. It supports automatic retry or latch-off modes upon fault detection, with a typical operating supply current of 2 mA.

Hot Swap Controllers Feature Summary

• Programmable foldback current limiting adjusts sense resistor voltage drop dynamically to reduce power dissipation.
• Integrated timer allows setting maximum current limit duration via external capacitor for precise fault management.
• High-side driver provides sufficient gate drive voltage for standard N-channel MOSFETs during insertion.

Hot Swap Controllers Applications

• Electronic circuit breakers
• Industrial alarm systems
• Power module protection

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the manufacturer designation as Analog Devices Inc. matches your bill of materials. Ensure the SOIC-8 package dimensions align with your PCB footprint requirements before finalizing procurement orders.

Hot Swap Controllers Selection Notes

Select this component for applications requiring robust protection against inrush currents and short circuits in high-voltage environments. The programmable nature of the current limit and fault timeout offers flexibility for various load profiles. Consider the 80V maximum input rating to ensure compatibility with system bus voltages.

Hot Swap Controllers Part Context

This part belongs to the LT1641 series of hot-swap controllers designed for safe board insertion into live backplanes. It serves as a critical power management IC for protecting downstream components from electrical stress during hot-plugging events in industrial and telecommunications equipment.

Hot Swap Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and parameter equivalence with any alternative devices through official datasheet cross-referencing before implementation.

Hot Swap Controllers FAQ

What is the operating supply voltage range?

The LT1641CS8#PBF operates with a supply voltage range from 9V to 80V.

How is the current limit controlled?

Current limiting is programmable using an external sense resistor, with a dynamic foldback feature that reduces the sense voltage drop under overload conditions.