LTC1645CS#TRPBF

Hot Swap Controllers Overview

The LTC1645CS#TRPBF is a dual-channel hot swap controller designed for positive low-voltage applications. It manages power insertion for N-channel MOSFETs, supporting supply voltages from 1.2V to 12V. The device features an adjustable circuit breaker threshold with a typical setting of 50mV and utilizes an external sense resistor for current limiting. Operating within a commercial temperature range of 0°C to 70°C, it is housed in an 8-pin SOIC package. The maximum supply current is 2mA, ensuring efficient standby operation during idle states.

Hot Swap Controllers Feature Summary

• Dual-channel control architecture for independent management of two separate power rails
• Integrated circuit breaker functionality with adjustable threshold via external sensing
• Supports N-channel MOSFETs for efficient load switching and protection

Hot Swap Controllers Applications

• PCI/PCI-X backplane power insertion systems
• Hot-swappable peripheral card interfaces
• Industrial equipment requiring controlled power ramp-up

Hot Swap Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape-and-reel configuration. Ensure compliance with RoHS directives and check for SVHC status as indicated in regulatory filings. Confirm that the component meets the required operating temperature grade for the intended commercial environment before finalizing procurement specifications.

Hot Swap Controllers Selection Notes

Select this component when dual-channel hot swap protection is required for low-voltage systems up to 12V. It is suitable for designs utilizing N-channel FETs where precise current limiting and controlled power sequencing are necessary. Consider the external sense resistor requirement for customizing trip thresholds and ensure the PCB layout supports the thermal requirements of the SOIC-8 package.

Hot Swap Controllers Part Context

This part belongs to the LTC1645 family of hot swap controllers manufactured by Analog Devices. These devices are engineered to protect circuits during insertion and removal, preventing voltage spikes and inrush currents. The CS variant denotes the commercial temperature range and SOIC packaging, distinguishing it from military or wider temperature grade options available in the broader product line.

Hot Swap Controllers FAQ

Does the LTC1645 support negative voltage hot swapping?

No, the LTC1645 is specifically designed for positive low-voltage hot swap applications using N-channel MOSFETs.

How is the current limit threshold determined?

The circuit breaker threshold is set by an external sense resistor connected to the device, allowing for customizable current limiting values.