Allegro MicroSystems, LLC unveils a new field programmable linear Hall-effect current sensor IC with features including a 240 kHz bandwidth, integrated voltage regulator, reverse battery protection, user-selectable ratiometry, and uni- or bi-directional output options, High accuracy is achieved through proprietary linearly interpolated temperature compensation technology that is programmed at the Allegro factory and provides sensitivity and offset that are virtually flat across the full operating temperature range. Temperature compensation is done in the digital domain with integrated EEPROM technology, while maingtaining a 240 kHz bandwidth analog signal path, making the A1367 device ideal for automotive applications, especially HEV inverter, DC-DC converter and electric power steering (EPS) applications. This ratiometric Hall-effect sensor IC provides a voltage output that is proportional to the applied magnetic field. Ratiometry can be disabled if immunity to Vcc fluctuations is desired.
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