LT1641-1IS8#PBF

Hot Swap Controllers Overview

The LT1641-1IS8#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. The device supports programmable current limiting, fault timeout, overvoltage protection (OVP), slew rate control, and undervoltage lockout (UVLO). It includes an automatic retry feature for fault recovery. The component is housed in an 8-SOIC package with a width of 3.90mm and functions reliably across an operating temperature range of -40°C to +85°C.

Hot Swap Controllers Feature Summary

• Provides comprehensive protection against overcurrent, overvoltage, and undervoltage conditions during board insertion or power application.
• Enables controlled power-up sequencing through adjustable slew rate capabilities to limit inrush current.
• Supports system resilience via automatic retry functionality following transient fault events.

Hot Swap Controllers Applications

• High-voltage backplane systems requiring safe module insertion
• Industrial equipment power distribution units
• Telecommunications infrastructure power management

Hot Swap Controllers Procurement Notes

Verify the specific suffix IS8#PBF to confirm the industrial temperature grade and lead-free packaging status. Confirm availability as stock levels fluctuate due to limited supply situations reported by distributors. Ensure the ordering information matches the exact pinout and electrical specifications required for the target design before finalizing procurement.

Hot Swap Controllers Selection Notes

Select this component when designing circuits that require protection for loads connected to positive supply rails up to 80V. It is suitable for applications needing precise control over turn-on ramps and robust fault handling without internal switching elements. Consider the SOIC-8 package constraints and thermal dissipation requirements relative to the expected load currents and ambient temperatures.

Hot Swap Controllers Part Context

This part belongs to the LT1641 family of positive high voltage hot swap controllers from Analog Devices. It serves as a dedicated interface between the power source and the load, managing the risks associated with live insertion. The series is designed for general-purpose applications where reliable power management and component protection are critical for system uptime.

Hot Swap Controllers Replacement Considerations

Publicly confirmed substitute part numbers for this specific variant are not available in the provided documentation. Evaluate alternatives such as the LT1641-2IS8#PBF if dual-channel capability is acceptable, or consult manufacturer resources for direct cross-references based on updated product line data.

Hot Swap Controllers FAQ

Does the LT1641-1IS8#PBF include an internal switch?

No, the LT1641-1IS8#PBF does not contain an internal switch; it requires an external N-channel MOSFET to handle the load current.

What is the maximum supply voltage supported by this controller?

The controller supports a maximum supply voltage of 80V.