LT6108AHMS8-2#PBF

Overview

The LT6108AHMS8-2#PBF is a high-side current sense amplifier with an integrated voltage reference and comparator. It operates within a supply voltage range of 2.7V to 60V and draws a typical supply current of 450µA. The device features a maximum input offset voltage of 125µV and a signal bandwidth of 1MHz. It includes a non-latching open-drain comparator output configured by external resistors.

Feature Summary

• Integrates a precision current sense amplifier, internal 400mV voltage reference, and comparator in a single package
• Features a non-latching open-drain comparator output for easy system interfacing
• Provides direct access to amplifier inputs and outputs for flexible gain and threshold configuration

Applications

• Overcurrent and fault detection
• Motor control error detection
• Battery monitoring systems
• Industrial control applications

Procurement Notes

Verify the specific suffix 'H' indicates the extended temperature grade (-40°C to 125°C) and 'MS8' denotes the 8-lead MSOP package. Confirm the '#PBF' designation corresponds to lead-free finish requirements. Ensure compatibility with the non-latching comparator variant designated by the '-2' model number.

Selection Notes

Select this component when a non-latching comparator response is required for overcurrent protection. The H-grade version is necessary for environments requiring operation up to 125°C. Consider the 1MHz bandwidth for applications needing fast error detection in critical circuits like motor drives.

Part Context

This part belongs to the LT6108 family of high-side current sense amplifiers. The -2 variant specifically provides a non-latching comparator, distinguishing it from the -1 version which offers latching functionality. Both share the same core amplifier specifications and package options.

Replacement Considerations

LT6108IMS8-2#PBF (Industrial Grade)

FAQ

What is the difference between the LT6108-1 and LT6108-2 variants?

The LT6108-1 features a latching comparator that requires a reset pulse, while the LT6108-2 has a non-latching comparator that returns to its normal state immediately after the fault condition clears.

How is the comparator trip point configured?

The comparator trip point is set using external resistors connected to the INC pin and the internal 400mV reference, allowing for customizable threshold detection.