LTC1645CS8#PBF

Hot Swap Controllers Overview

The LTC1645CS8#PBF is a dual-channel hot swap controller designed for positive low-voltage applications, housed in an 8-pin SOIC package. It supports supply voltages from 1.2V to 12V and operates within a commercial temperature range of 0°C to 70°C. The device features a typical circuit breaker threshold voltage of 50mV and requires an external sense resistor. It draws a maximum supply current of 2mA and utilizes N-channel MOSFETs for power path control.

Hot Swap Controllers Feature Summary

• Dual-channel architecture enables independent control of two separate power paths
• Integrated sequence generation manages orderly power-up and power-down events
• External FET design allows selection of high-current N-channel transistors
• Built-in protection mechanisms safeguard against overcurrent and thermal faults

Hot Swap Controllers Applications

• Server backplane power distribution systems
• Industrial equipment hot-swappable module insertion
• Telecommunications infrastructure power management
• Computer system peripheral card power sequencing

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm that the CS8 variant corresponds to the standard commercial temperature grade rather than industrial specifications. Ensure the ordering information matches the exact 8-pin SOIC package dimensions required for your PCB layout constraints.

Hot Swap Controllers Selection Notes

Select this component when designing systems requiring controlled insertion of dual power rails. The external FET approach provides flexibility for higher current loads compared to integrated solutions. Evaluate the 50mV threshold setting against your system's fault detection sensitivity requirements before finalizing the bill of materials.

Hot Swap Controllers Part Context

This part belongs to the LTC1645 family of hot swap controllers manufactured by Analog Devices. It shares functional similarities with other members like the LTC1645IS8 but differs in temperature rating and package options. The series is commonly used alongside evaluation boards such as the DC1356A for design verification.

Hot Swap Controllers Replacement Considerations

Public confirmed substitute part numbers include the LTC1645IS8#PBF for industrial temperature grades and the LTC1645CS#PBF for 14-pin packages. Verify pin compatibility and thermal performance when transitioning between these variants.