MPQ8112/MPQ8112A

60V, High-Side Current-Sense Amplifier,

AEC-Q100 Qualified

MPQ8112/MPQ8112A Rev. 1.0

www.MonolithicPower.com

1

7/7/2020

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© 2020 MPS. All Rights Reserved.

DESCRIPTION

The MPQ8112 and MPQ8112A are low-cost,

unipolar, high-side current-sense amplifiers.

The devices operate from a 2.7V to 60V supply

and typically consume a 300µA current. They

are

ideal for today’s automotive systems,

industrial

supplies,

and

systems

where

battery/DC current monitoring is critical.

High-side current monitoring is especially useful

in battery-powered systems, since it does not

interfere with the ground path of the battery

charger. The common mode input ranges

between 0V and 60V with a 700kHz high

bandwidth. That makes these devices suitable

for use in inside control and short-circuit

protection loops.

The MPQ8112 directly converts a differential

input voltage to a voltage output with built-in

internal common input resistors and a load

resistor. The MPQ8112 has a 50V/V gain.

The MPQ8112A converts 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 resistor.

Both

the

MPQ8112

and

MPQ8112A

are

available in TSOT23-6L packages.

MPQ8112 FAMILY VERSIONS

Part Number

Output Gain

MPQ8112

50V/V

MPQ8112A

Adjustable

FEATURES

 Low-Cost, Compact Current-Sense Solution

 700kHz Bandwidth

 300µA Typical Supply Current

 2.7V to 60V Operating Supply Voltage

 0V to 60V Common Mode Input Range

 0.2µA Typical Shutdown Current

 300µV Input Offset Voltage

 Available with Fixed 50V/V Gain

(MPQ8112), or Adjustable Gain

(MPQ8112A)

 ±1% Current-Sense Gain Accuracy

 High-Current Sensing Capabilities

 Available in a 6-Lead TSOT23 Package

 Available in AEC-Q100 Grade 1

APPLICATIONS

 Advanced Driver Assistance Systems

(ADAS)

 Sensor Fusion Systems

 Electric Power Steering (EPS) Systems

 Electronic Stability Control (ESC) Systems

 Brake Systems

 Battery-Operated Systems

 Energy Management Systems

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.