LT6119-1
LT6119-2
Info : RECOMMENDED FOR NEW DESIGNS
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LT6119-1
LT6119-2

Current Sense Amplifier, Reference and Comparators with POR

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 8
1ku List Price Starting From $2.43
Features
  • 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
Additional Details
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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
Part Models 8
1ku List Price Starting From $2.43

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

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- 20_0130

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PCN

Jun 5, 2024

- 24_0003

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Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

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PRODUCTION

Feb 4, 2020

- 20_0130

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Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

reference details image

DC2261A-B

LT6119-2 | Current Sense Amplifier, Reference and Comparators with POR

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DC2261A-B

LT6119-2 | Current Sense Amplifier, Reference and Comparators with POR

LT6119-2 | Current Sense Amplifier, Reference and Comparators with POR

Product Detail

Demonstration circuit 2193A features the LT6119, a high side current sense amplifier with comparators and a 400mV reference.


The demo board circuit amplifies the voltage across an on-board current sense resistor, to provide a precision unipolar voltage output that is proportional to the sensed current. The board has two on-board comparators with latching outputs and an integrated 400mV reference that sets the threshold for the comparators. There are two versions of the board, A and B. The version determines the available comparator inputs. The DC2261A-A (LT6119-1) has an inverting and a noninverting comparator input available while the DC2261A-B (LT6119-2) has two inverting inputs available.

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DC2261A-A

LT6119-1 | Current Sense Amplifier, Reference and Comparators with POR

zoom

DC2261A-A

LT6119-1 | Current Sense Amplifier, Reference and Comparators with POR

LT6119-1 | Current Sense Amplifier, Reference and Comparators with POR

Product Detail

Demonstration circuit 2193A features the LT6119, a high side current sense amplifier with comparators and a 400mV reference.


The demo board circuit amplifies the voltage across an on-board current sense resistor, to provide a precision unipolar voltage output that is proportional to the sensed current. The board has two on-board comparators with latching outputs and an integrated 400mV reference that sets the threshold for the comparators. There are two versions of the board, A and B. The version determines the available comparator inputs. The DC2261A-A (LT6119-1) has an inverting and a noninverting comparator input available while the DC2261A-B (LT6119-2) has two inverting inputs available.

Tools & Simulations

Tools & Simulations 1

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.

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