LT6109AHMS-2#TRPBF

Overview

The LT6109AHMS-2#TRPBF is a high-side current sense amplifier with integrated reference and comparators, manufactured by Analog Devices. It operates within a supply voltage range of 2.7V to 60V and features a maximum input offset voltage of 125µV. The device includes two comparators with the same polarity configuration, offering a typical propagation delay of 1.4µs and a bandwidth of 1MHz. It is housed in a 10-lead MSOP package and specified for operation from –40°C to 125°C.

Feature Summary

• Integrates a precision current sense amplifier with an internal 400mV reference and two latching comparators configured in the same polarity.
• Provides fast response capabilities with a total threshold error of ±1.25% maximum and a step response time of 500ns.
• Features open-drain comparator outputs that allow easy interface to system components and level shifting to digital supplies.

Applications

• Circuit fault protection with latching load disconnect
• Motor control systems requiring overcurrent and undercurrent detection
• Battery monitoring and automotive sensing applications

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the AHMS designation corresponds to the extended temperature grade and accuracy class required for your design. Ensure compatibility with the 10-lead MSOP footprint during PCB layout. Cross-reference the datasheet revision to confirm pinout consistency.

Selection Notes

Select this component for applications requiring high-side current monitoring with integrated fault detection logic. The LT6109-2 variant is suitable where both comparators must trigger on the same condition. Consider the 125µV maximum offset voltage for low-current measurement accuracy requirements. Evaluate the 1MHz bandwidth against signal frequency needs.

Part Context

This part belongs to the LT6109 family of high-side current sense amplifiers. The 'A' grade denotes tighter electrical specifications compared to standard grades. The 'H' indicates the extended industrial temperature range capability. The 'MS' specifies the plastic MSOP package type used for space-constrained designs.

Replacement Considerations

LT6109AHMS-2#PBF offers the same electrical characteristics but in tube packaging instead of tape and reel.