LT6119HMS-1#TRPBF

Overview

The LT6119HMS-1#TRPBF is a high-side current sense device from Analog Devices Inc. in a 10-lead MSOP package, specified for –40°C to 125°C. It integrates a precision current sense amplifier with a wide supply range of 2.7V to 60V and an internal 400mV reference. The device features two latching comparators configured with opposing polarity (LT6119-1 variant). Key electrical parameters include a maximum input offset voltage of 200µV, a typical propagation delay of 1.4µs, and a supply current ranging from 475µA to 1000µA depending on voltage.

Feature Summary

• Integrates a precision current sense amplifier with an internal 400mV reference and two latching comparators.
• Features fast fault protection with power-on reset capability and early warning functionality.
• Supports high-side current sensing with a wide supply voltage range up to 60V.
• Includes comparator latch functionality that can be enabled or disabled via the LE pin.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the HMS designation corresponds to the industrial temperature grade of –40°C to 125°C. Ensure compatibility with the LT6119-1 comparator polarity configuration, which utilizes opposing polarity inputs compared to the LT6119-2 variant.

Selection Notes

Select this component for applications requiring integrated overcurrent protection and precise high-side current monitoring. The LT6119-1 variant is suitable where opposing polarity comparator outputs are needed for distinct warning and disconnect signals. Consider the 200µV maximum offset voltage for low-current accuracy requirements and the 60V supply range for automotive or industrial bus architectures.

Part Context

This part belongs to the LT6119 family of complete high-side current sense devices. The LT6119 series combines a current sense amplifier, a voltage reference, and comparators in a single small 10-lead MSOP package. The LT6119-1 version specifically configures the internal comparators with opposing polarities, distinguishing it from the LT6119-2 which shares the same polarity.

Replacement Considerations

LT6119HMS-1#PBF is the tube-packaged equivalent of this part number.

FAQ

What is the difference between the LT6119-1 and LT6119-2 variants?

The LT6119-1 has comparators connected in opposing polarity, while the LT6119-2 has comparators connected in the same polarity.

How is the comparator latch functionality controlled?

The latch is enabled when the LE (Latch Enable) pin is high and disabled when the LE pin is low.