LT6119HMS-2#TRPBF

Overview

The LT6119HMS-2#TRPBF is a high-side current sense amplifier featuring an integrated 400mV precision reference and two latching comparators with power-on reset. It operates on a supply voltage range of 2.7V to 60V with a typical supply current of 550µA. The device provides a maximum input offset voltage of 200µV, a gain error of 0.2% maximum, and a signal bandwidth of 1MHz. It 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 dual latching comparators.
• Features fast fault protection with a total propagation delay typically of 1.4µs and power-on reset capability.
• Supports wide supply ranges up to 60V while maintaining low offset voltage and high common-mode rejection.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the HMS-2 designation matches the required comparator polarity configuration. Ensure the component meets the –40°C to 125°C temperature grade requirements for your application environment.

Selection Notes

Select this part for applications requiring simultaneous amplification and threshold detection. The LT6119-2 variant features comparators connected in the same polarity, suitable for detecting both overcurrent and undercurrent events using identical logic levels. Verify external resistor values to ensure output current remains within the 1mA limit.

Part Context

This component belongs to the LT6119 family of complete high-side current sense devices. It combines sensing, referencing, and comparison functions into a single small 10-lead MSOP package. The device is designed for industrial and automotive environments where space constraints and high accuracy are critical.

Replacement Considerations

LT6119HMS-2#PBF is the tube version of the same device. LT6119IMS-2#TRPBF offers the same functionality but is rated for the industrial temperature range of –40°C to 85°C.

FAQ

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

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

How is the comparator latch functionality controlled?

The latch is enabled or disabled via the LE (Latch Enable) pin. When high, the comparator output latches at a low level once tripped.