LT6108HMS8-1#TRPBF

Overview

The LT6108HMS8-1#TRPBF is a high-side current sense amplifier with an integrated 400mV reference and a latching comparator. It operates on a supply voltage range of 2.7V to 60V with a typical supply current of 450µA. The device features a maximum input offset voltage of 125µV, a gain error of 0.2% maximum, and a signal bandwidth of 1MHz. The open-drain comparator output provides fast response times for overcurrent detection.

Feature Summary

• Integrates a precision current sense amplifier with a latching comparator and internal voltage reference
• Provides direct access to amplifier and comparator inputs and outputs for flexible system configuration
• Features low offset voltage and high common-mode rejection ratio for accurate fault detection

Applications

• Overcurrent and fault detection in power systems
• Motor control applications requiring fast step response
• Battery monitoring and automotive sensing
• Industrial control and remote sensing circuits

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm the H grade meets the required -40°C to 125°C operating temperature range for your application environment. Ensure compatibility with the 8-lead MSOP package dimensions during PCB layout planning.

Selection Notes

Select this part for applications requiring a latching comparator output to capture transient overcurrent events. The device supports wide supply voltages up to 60V and offers configurable gain via external resistors. Consider the thermal performance of the MSOP package if high dissipation is expected in the design.

Part Context

This component belongs to the LT6108 family of high-side current sense amplifiers. The LT6108-1 variant specifically includes a latching comparator, distinguishing it from the non-latching LT6108-2. Both versions share similar amplifier characteristics but differ in their fault flag behavior.

Replacement Considerations

LT6108HMS8-1#PBF (Same electrical specifications; differs only in bulk tube packaging instead of tape and reel).

FAQ

What distinguishes the LT6108-1 from the LT6108-2?

The LT6108-1 features a latching comparator that requires a reset pulse to clear the fault flag, whereas the LT6108-2 has a non-latching comparator.

How is the comparator threshold configured?

The comparator trip point is set using external resistors connected to the INC pin, utilizing the internal 400mV precision reference as a baseline.