Power Electronics / Power Management


High-side current sense amplifier with adjustable gain

23 June 2021 Power Electronics / Power Management

The MPQ8112A is a low-cost, unipolar, high-side current sense amplifier. The device operates from a 2,7 V to 60 V supply and typically consumes 300 μA of current. It is ideal for automotive systems, industrial supplies and systems where battery monitoring and DC current monitoring are critical.

High-side current monitoring is ideal in battery powered systems, as it does not interfere with the ground path of the battery charger. The common mode input ranges between 0 V and 60 V with a high 700 kHz bandwidth, making the device suitable for inside control loops and short-circuit protection (SCP) loops.

The MPQ8112A converts a differential input voltage to a current output, which is converted back to a voltage via an external load resistor. The device has an adjustable gain that is determined by the external common input resistors and the load resistor.

The amplifier is available in a TSOT23-6L package.

For more information contact NuVision Electronics, +27 11 608 0144, gdeklerk@nuvisionelec.co.za, www.nuvisionelec.com


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