LT6109HMS-2#TRPBF

Overview

The LT6109HMS-2#TRPBF is a high-side current sense amplifier from Analog Devices, featuring an integrated precision reference and two comparators with identical polarity. It operates within a supply voltage range of 2.7V to 60V and draws a typical supply current of 475µA at 2.7V. The device offers a signal bandwidth of 1MHz and a common-mode rejection ratio of 125dB. Input offset voltage is specified at a maximum of 350µV for the H-grade version, with a gain error of 0.2% maximum. It is housed in a 10-lead MSOP package.

Feature Summary

• Integrates a precision current sense amplifier with an internal 400mV voltage reference and two latching comparators configured with the same polarity.
• Provides fast response capabilities with a total propagation delay of typically 1.4µs and a step response time of 500ns for accurate fault detection.
• Features open-drain comparator outputs that allow flexible interfacing with various system components and digital supplies.
• Supports wide supply voltage operation up to 60V with low shutdown current consumption for power-sensitive applications.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the H-grade designation ensures operation across the full industrial temperature range of –40°C to 125°C. Ensure compatibility with the required 10-lead MSOP footprint during PCB layout. Cross-reference the manufacturer's latest documentation for any product change notifications or lead-free finish updates.

Selection Notes

Select the LT6109HMS-2#TRPBF when dual comparators with identical polarity are required for simultaneous threshold triggering. The H-grade variant is necessary for environments exceeding 85°C. Consider the 1MHz bandwidth for applications requiring rapid error detection in critical circuits. Evaluate external resistor values to set gain and thresholds while maintaining output current limits below 1mA.

Part Context

This component belongs to the LT6109 family of high-side current sense amplifiers. The -2 suffix denotes a specific configuration where both internal comparators share the same polarity, differing from the -1 version which features opposing polarities. The HMS package identifies the 10-lead MSOP form factor suitable for space-constrained designs.

Replacement Considerations

LT6109HMS-2#PBF is the tube-packaged equivalent of this part number.