LT1641-2CS8#PBF

Hot Swap Controllers Overview

The LT1641-2CS8#PBF is a positive high-voltage hot swap controller manufactured by Analog Devices Inc. It operates within a supply voltage range of 10 V to 80 V and draws a typical operating current of 1.3 mA. The device features programmable current limiting with adjustable sense voltages, an internal timer for fault protection, and automatic retry capabilities. It is housed in an SOIC-8 surface-mount package and supports operation temperatures from 0°C to +70°C.

Hot Swap Controllers Feature Summary

• Integrates programmable foldback current limiting to dynamically adjust sense resistor voltage drop, reducing power dissipation during overcurrent events.
• Includes an internal timer that defines maximum current limit duration, supporting both latch-off and automatic retry modes upon fault clearance.
• Provides high-side gate drive capable of delivering at least 10 V to standard N-channel MOSFETs when input voltage exceeds 20 V.

Hot Swap Controllers Applications

• Electronic circuit breaker implementations
• Industrial alarm system power protection
• Power module surge and short-circuit protection

Hot Swap Controllers Procurement Notes

Verify the specific suffix CS8 against the datasheet to confirm the commercial temperature range (0°C to +70°C). Ensure the ordering part number matches the exact pinout and package dimensions required for the PCB footprint. Confirm RoHS compliance status through official manufacturer documentation prior to procurement.

Hot Swap Controllers Selection Notes

Select this component for applications requiring precise control over inrush current and short-circuit protection in single-channel systems. Evaluate the need for automatic retry functionality versus latch-off behavior based on system recovery requirements. Ensure the external MOSFET selected can handle the peak currents defined by the programmable limit settings.

Hot Swap Controllers Part Context

This part belongs to the LT1641 family of positive high-voltage hot swap controllers. It serves as a dedicated solution for managing power insertion sequences and protecting downstream circuits from electrical faults without requiring complex external logic or discrete protection components.

Hot Swap Controllers Replacement Considerations

LT1641-2IS8#PBF offers an extended industrial temperature range (-40°C to +85°C) compared to the commercial range of the CS8 variant. Verify thermal requirements before substituting.