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Hall-effect current sensor suits 50-100A apps

Posted: 11 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:open-loop current sensor? electrostatic shield?


Allegro MicroSystems Inc. has introduced its next generation in Hall-effect current sensing technology, the ACS756. The device is a low noise, open-loop current sensor with a 125kHz bandwidth capability. The enhanced accuracy and speed make this device suitable for a variety of 50-100A applications. This device takes advantage of the low loss leadframe of the company's "CA" package and the fast response capability of an integrated core.

Allegro's ACS756 also has an internal electrostatic shield. The electrostatic shield effectively shunts the effects of voltage transient spikes around the silicon and minimizes the voltage ripple on the output of the device. The result is a high performance current sensing solution suitable for motor and inverter control, power supply control and protection and other applications requiring high side current sensing.

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