LT6108AHMS8-2#TRPBF

Overview

The LT6108AHMS8-2#TRPBF is a high-side current sense amplifier with an integrated comparator and voltage reference, manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.7V to 60V and features a specified temperature range from -40°C to 125°C. The device incorporates a precision current sense amplifier with a maximum input offset voltage of 125µV and a bandwidth of 1MHz. It includes a non-latching comparator with a typical threshold of 400mV and a total threshold error of ±1.25%. The component is housed in an 8-lead MSOP package.

Feature Summary

• Integrates a precision current sense amplifier with low offset voltage and high common-mode rejection ratio for accurate shunt measurement.
• Includes an internal 400mV precision reference and a non-latching open-drain comparator for fast overcurrent detection and fault flagging.
• Supports wide supply voltage operation up to 60V with low shutdown current capability for power-sensitive applications.

Applications

• Overcurrent and fault detection in industrial systems
• Motor control circuits requiring fast step response
• Battery monitoring and automotive control systems

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'H' grade designation matches the required -40°C to 125°C operating temperature range for your application environment. Ensure the '-2' variant corresponds to the non-latching comparator requirement rather than the latching version.

Selection Notes

Select this component for applications requiring high-side sensing with integrated fault protection. The non-latching comparator output is suitable for systems needing immediate reset without external latch-clearing logic. Consider the 1MHz bandwidth for high-speed motor control or critical error detection scenarios where rapid response is necessary.

Part Context

This part belongs to the LT6108 family of high-side current sense amplifiers. The LT6108-2 variant specifically provides a non-latching comparator, distinguishing it from the LT6108-1 which offers a latching option. The 'A' grade denotes tighter electrical specifications compared to standard grades, while the 'H' grade ensures extended temperature performance.

Replacement Considerations

LT6108HMSE#TRPBF

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 to clear the fault state, whereas the LT6108-2 has a non-latching comparator that automatically resets when the overcurrent condition clears.

How is the comparator threshold configured?

The comparator threshold is set using the internal 400mV precision reference connected to the INC pin. External resistors can be used to adjust the trip point relative to this reference.