LT6108HMS8-2#TRPBF

Overview

The LT6108HMS8-2#TRPBF is a high-side current sense amplifier with an integrated comparator and reference, supplied in tape and reel packaging. It features a non-latching comparator output. The device operates within a supply voltage range of 2.7V to 60V and draws a typical supply current of 450µA. Key electrical parameters include a maximum input offset voltage of 350µV, a gain error of 0.2% maximum, and a signal bandwidth of 1MHz. The total propagation delay is typically 1.4µs, with a step response time of 500ns. It is specified for operation from -40°C to 125°C.

Feature Summary

• Integrates a precision current sense amplifier, internal voltage reference, and comparator in a single device.
• Features a non-latching open-drain comparator output configured by external resistors.
• Provides direct access to amplifier and comparator inputs and outputs for system integration.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the H grade meets the required -40°C to 125°C temperature specification. Ensure the non-latching comparator variant matches the application logic requirements compared to the latching version.

Selection Notes

Select this component for high-side sensing where fast reaction to overcurrent conditions is critical. The non-latching comparator is suitable for applications requiring immediate reset upon fault clearance. Consider the 1MHz bandwidth for error detection in motor control scenarios.

Part Context

This part belongs to the LT6108 family, which includes versions with latching (LT6108-1) and non-latching (LT6108-2) comparators. The MSOP package provides a compact solution for space-constrained designs. The H grade ensures performance across the extended industrial temperature range.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

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

The LT6108-1 features a latching comparator that requires a reset pulse, while the LT6108-2 has a non-latching comparator that resets automatically when the fault condition clears.

How is the comparator threshold configured?

The comparator trip point is configured using external resistors connected to the INC pin and the internal 400mV reference.