LT2940
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LT2940

Power and Current Monitor

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Info: : PRODUCTION tooltip
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Part Details
Part Models 8
1ku List Price Starting From $2.48
Features
  • Four-Quadrant Power Measurement
  • ±5% Power Measurement Accuracy
  • 4V to 80V High Side Sense, 100V Max
  • Current Mode Power and Current Outputs
  • Output Bandwidth Exceeds 500kHz
  • ±3% Current Measurement Accuracy
  • 6V to 80V Supply Range, 100V Max
  • Inverting and Noninverting Open-Collector Comparator Outputs
  • Available in 12-Pin DFN (3mm × 3mm) and 12-Lead MSOP Packages
Additional Details
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The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate forward and reverse power flow.

An integrated comparator with inverting and noninverting open-collector outputs makes the LT2940 a complete power level monitor. In addition, an output current proportional to the sensed high side current allows current monitoring. The current mode outputs make scaling, filtering and time integration as simple as selecting external resistors and/or capacitors.

Applications

  • Board Level Power and Current Monitoring
  • Line Card and Server Power Monitoring
  • Power Sense Circuit Breaker
  • Power Control Loops
  • Power/Energy Meters
  • Battery Charger Metering
Part Models 8
1ku List Price Starting From $2.48

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Documentation

Documentation

Video

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

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

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

Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LT2940CMS#PBF

PRODUCTION

LT2940CMS#TRPBF

PRODUCTION

LT2940IMS#PBF

PRODUCTION

LT2940IMS#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

Apr 18, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

arrow down

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

Feb 4, 2020

- 20_0129

arrow down

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LT2940CMS#PBF

PRODUCTION

LT2940CMS#TRPBF

PRODUCTION

LT2940IMS#PBF

PRODUCTION

LT2940IMS#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

Apr 18, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Software & Part Ecosystem

Software & Part Ecosystem

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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