LT6108AIMS8-1#TRPBF

Overview

The LT6108AIMS8-1#TRPBF is a high-side current sense amplifier with an integrated reference and 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. It includes a 400mV internal reference for the comparator, which has a total threshold error of ±1.25%. The component is specified for operation from –40°C to 85°C and is housed in an 8-lead MSOP package.

Feature Summary

• Integrates a precision current sense amplifier with a latching comparator and a 400mV internal reference.
• Provides fast response capabilities with a 1MHz bandwidth and a typical propagation delay of 1.4µs.
• Features low offset voltage and gain error to ensure accurate current monitoring across a wide dynamic range.
• Supports direct connection to power supply rails with inputs capable of handling voltages up to 60V.

Applications

• Circuit fault protection with very fast latching load disconnect
• Motor control systems requiring overcurrent detection
• Battery monitoring and management
• Industrial control and automotive monitoring applications

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the A grade designation meets the required offset voltage specifications for your application. Ensure the MS8 package footprint matches your PCB design constraints. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this part for applications requiring high-side sensing with integrated fault latching. The A grade offers tighter offset voltage limits compared to standard grades. Consider the 1MHz bandwidth for high-speed error detection needs. Evaluate the 450µA supply current against system power budgets. Verify compatibility with the 8-lead MSOP package dimensions.

Part Context

This component belongs to the LT6108 family of high-side current sense amplifiers. The -1 variant specifically includes a latching comparator output, distinguishing it from the non-latching -2 version. It is designed for industrial and automotive environments where reliable fault detection is critical. The device simplifies system design by integrating the reference and comparator functions.

Replacement Considerations

LT6108IMS8-1#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, 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 threshold configured?

The comparator threshold is set using an external resistor divider connected to the OUTA pin, referencing the internal 400mV precision reference available at the INC pin.