DIOAH1388-HK4-7
Overview
The AH1388-HK4-7 is a dual-output, unipolar Hall effect switch designed for micropower applications operating between 1.6V and 3.6V. It features two independent outputs that respond to different magnetic poles: Output 1 triggers on a North pole while Output 2 triggers on a South pole, allowing for sophisticated position and proximity sensing in a compact X2-DFN1410-4 package.
Why Choose This Part
The device is highly efficient with an average supply current of 12uA and a sleep current of only 0.36uA, making it ideal for battery-operated devices. Its chopper-stabilized design ensures superior temperature stability and minimal switch-point drift across the -40 to 85 degree Celsius operating range. The dual push-pull outputs eliminate the need for external pull-up resistors, reducing the total bill of materials and PCB footprint.
Applications
Key Specifications
Getting Started
To integrate this sensor, provide a stable 1.6V to 3.6V supply with a 0.1uF local bypass capacitor. Ensure the magnetic target is oriented such that the flux lines pass through the center of the X2-DFN1410-4 package for optimal +/-2.5mT trip sensitivity. Since the outputs are push-pull, they can be connected directly to high-impedance GPIO pins on a microcontroller without additional components.
