LT6108HMS8-2#PBF

Overview

The LT6108HMS8-2#PBF is a high-side current sense amplifier with an integrated 400mV reference and a non-latching comparator. It operates within a supply voltage range of 2.7V to 60V, drawing 450µA typical supply current. The device features a maximum input offset voltage of 450µV and a gain error of 0.2% maximum. It provides a 1MHz bandwidth and a total propagation delay of typically 1.4µs. The component is specified for operation from –40°C to 125°C and is housed in an 8-lead MSOP package.

Feature Summary

• Incorporates a precision current sense amplifier with low offset voltage and configurable external gain.
• Features an internal 400mV precision reference and a non-latching open-drain comparator for fault detection.
• Supports wide supply voltages up to 60V with low shutdown current capability.

Applications

• Overcurrent and fault detection
• Current shunt measurement
• Battery monitoring
• Motor control
• Automotive monitoring and control

Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and RoHS compliance as per manufacturer standards. Confirm the 'H' grade designation ensures performance across the full industrial temperature range of -40°C to 125°C. Ensure the MS8 package type matches the target PCB footprint requirements before finalizing procurement.

Selection Notes

Select this variant when a non-latching comparator output is required for transient overcurrent events. The H-grade version is necessary for applications operating at temperatures up to 125°C. Consider the 1MHz bandwidth and fast step response for motor control or critical error detection scenarios requiring quick reaction times.

Part Context

This component belongs to the LT6108 family of high-side current sense amplifiers. It is functionally similar to the LT6108-1 but utilizes a non-latching comparator instead of a latching one. Both versions share identical amplifier specifications and package options, differing primarily in the comparator's behavior upon reset.

Replacement Considerations

LT6108IMS8-2#PBF (Industrial Grade)

FAQ

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

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

How is the comparator threshold configured?

The comparator trip point is set using external resistors connected to the INC pin, referencing the internal 400mV precision voltage reference.