Overview

Features and Benefits

  • Current Sense Amplifier
    • Fast Step Response: 500ns
    • Low Offset Voltage: 200μV Maximum
    • Low Gain Error: 0.2% Maximum
  • Internal 400mV Precision Reference
  • Internal Latching Comparators
    • Power-On Reset Capability
    • Fast Response Time: 500ns
    • Total Threshold Error: ±1.25% Maximum
    • Two Comparator Polarity Options
  • Wide Supply Range: 2.7V to 60V
  • Supply Current: 550μA
  • Specified for –40°C to 125°C Temperature Range
  • Available in 10-Lead MSOP Package

Product Details

The LT6119 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and two latching comparators. Two versions of the LT6119 are available. The LT6119-1 has the comparators connected in opposing polarity and the LT6119-2 has the comparators connected in the same polarity. The comparator latch functionality can be enabled or disabled and the comparators can be configured to reset upon power-on. The input and the open-drain outputs of the comparators are independent from the current sense amplifier. The comparator trip points and amplifier gain are configured with external resistors.

The overall propagation delay of the LT6119 is typically only 1.4μs, allowing for quick reaction to overcurrent and undercurrent conditions. The 1MHz bandwidth allows the LT6119 to be used for error detection in critical applications such as motor control. The high threshold accuracy of the comparators, combined with the ability to latch both comparators, ensures the LT6119 can capture high speed events.

The LT6119 is fully specified for operation from –40°C to 125°C, making it suitable for industrial and automotive applications. The LT6119 is available in a small 10-lead MSOP.

Applications

  • Overcurrent, Undercurrent and Fault Detection
  • Current Shunt Measurement
  • Battery Monitoring
  • Motor Control
  • Automotive Monitoring and Control
  • Industrial Control

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

LT6119-1
LT6119-2

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.