Monolithic Power Systems (MPS) MPQ811x High-Side Current-Sense Amplifiers

Monolithic Power Systems (MPS) MPQ811x High-Side Current-Sense Amplifiers

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Monolithic Power Systems (MPS) MPQ811x High-Side Current-Sense Amplifiers are ideal for automotive systems, industrial supplies, and systems where battery/DC monitoring is critical. High-side current monitoring is beneficial in battery-powered systems since it does not interfere with the ground path of the battery charger. The low-cost, unipolar, high-side current-sense amplifiers operate from a 2.7V to 60V supply and typically consume a 300µA current. These devices have common-mode input ranges between 0V and 60V with a 700kHz high bandwidth. Additionally, this makes the MPQ811x ideal for inside control and short-circuit protection loops.

The MPS MPQ8112 and MPQ8113 convert a differential input voltage to a voltage output with built-in internal common input resistors and load resistors. The MPQ8112 has a 50V/V gain.

The MPQ8112A and MPQ8113A convert the differential input voltage to a current output. This current is converted back to a voltage with an external load resistor. The MPQ8112A has an adjustable gain based on the external common input resistors and load resistors.

The MPQ811x High-Side Current-Sense Amplifiers are available in TSOT23-6L packages

Features

  • Low-cost, compact current-sense solution
  • 700kHz Bandwidth
  • 300µA Typical supply current
  • 2.7V to 60V Operating supply voltage range
  • 0V to 60V Common-mode input voltage range
  • 0.2µA Typical shutdown current
  • 300µV Input offset voltage
  • Available with fixed 50V/V gain (MPQ8112 and MPQ8113), or adjustable gain (MPQ8112A and MPQ8113A)
  • Adjustable maximum output voltage
  • ±1% Current-sense gain accuracy
  • High-current sensing capabilities
  • Available in a TSOT23-6L package
  • Available in AEC-Q100 Grade 1

MPQ8112/A Typical Applications

MPQ8113/A Typical Applications

more information: https://www.monolithicpower.com/en/mpq8112a-aec1.html

About mixos

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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