LT6109AHMS-1#TRPBF

Overview

The LT6109AHMS-1#TRPBF is a high-side current sense amplifier with integrated reference and comparators, manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.7V to 60V and features a maximum input offset voltage of 125µV. The device provides a signal bandwidth of 1MHz and a typical propagation delay of 1.4µs. It includes two comparators with opposing polarity connections, an internal 400mV precision reference, and open-drain outputs. The component is specified for operation from –40°C to 125°C and is housed in a 10-lead MSOP package.

Feature Summary

• Integrates a precision current sense amplifier with an internal 400mV reference and two latching comparators.
• Features fast response capabilities with a 1MHz bandwidth and low propagation delay for critical error detection.
• Provides open-drain comparator outputs configured in opposing polarity for flexible system interfacing.

Applications

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

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 A-grade accuracy specifications required for the application. Ensure compatibility with the 10-lead MSOP footprint during PCB layout review.

Selection Notes

Select this variant for applications requiring high threshold accuracy and opposing polarity comparator configurations. The A-grade specification ensures tighter offset voltage limits compared to standard grades. Consider the 125°C operating range suitability for industrial or automotive environments where thermal stability is critical.

Part Context

This component belongs to the LT6109 family of high-side current sense amplifiers. The LT6109-1 version specifically connects its comparators in opposing polarity, distinguishing it from the LT6109-2 which uses same-polarity connections. The AHMS suffix denotes the extended temperature range and enhanced accuracy grade within the MSOP package lineup.

Replacement Considerations

LT6109AHMS-1#PBF is the tube-packaged equivalent. LT6109HMS-1#TRPBF offers the same functionality but with standard accuracy specifications rather than the A-grade performance.