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Shenzhen Mingjiada Electronics Co., Ltd New Original [Distribution Allegro] ACS72981LLRATR-050B5 Current Sensor 50A 1 Channel Hall Effect, Differential Bi-directional

ACS72981 Description

The Allegro™ ACS72981 current sensor IC family provides an economical and accurate solution for AC or DC current measurement. The 250 kHz bandwidth makes it ideal for motor control, load sensing and management, power supply and DC-DC converter control, and inverter control. Response times of less than 2 µs allow for overcurrent fault detection in safety critical applications.

The device consists of a precision, low-distortion linear Hall circuit with a copper conduction path near the chip. The applied current flowing through this copper conduction path generates a magnetic field, which the Hall IC converts into a proportional voltage. Device accuracy is optimised by the close proximity of the magnetic signal to the Hall sensor. The low bias, chopper stabilised BiCMOS Hall IC provides an accurate proportional output voltage which is factory programmed for accuracy. Proprietary digital temperature compensation technology greatly improves zero output voltage and output sensitivity accuracy over the entire temperature and throughout its lifetime. The output of the device will increase as current flows through the primary copper conduction path (from terminal 5 to terminal 6). for current sampling. The conductive path has an internal resistance of 200µΩ typical, providing low power consumption and higher power density in the application. The sensor uses differential sensing technology to virtually eliminate output interference due to common mode interference magnetic fields.

The thickness of the copper conductor allows the device to survive high overcurrent conditions. The terminals of the conductive path are electrically isolated from the signal lines (pins 1 to 3).

The devices are fully calibrated before leaving the factory. The ACS72981 series is lead (Pb) free. All leads are 100% matte tin plated and there is no Pb in the package. heavy gauge leadframes are made of oxygen-free copper.

Features and benefits of the ACS72981

-AEC-Q100 automotive approval

-High bandwidth 250 kHz analogue output

-Lower than 2 µs output response time

-3.3 V and 5 V supply operation

-Ultra-low power consumption: 200 μΩ internal conductor resistance

-Industry-leading noise performance and increased bandwidth through proprietary amplifier and filter design techniques

-Greatly improved total output error over the entire operating temperature range through digitally programmed and compensated gain and detuning

-Small package for easy installation

-Monolithic Hall IC for high reliability

-Output voltage proportional to AC or DC current

-Factory tuning accuracy

-Very stable zero-amp output detuning voltage over the entire temperature and over the entire service life

If interested, please feel free to contact Mr. Chen at

Tel: +86 13410018555

E-mail: sales@hkmjd.com

Home page URL: www.hkmjd.com