Allegro MicroSystems Inc. Continuous-Time Switch Unipolar Switch A1101LLHLX-T

The A1101LLHLX-T is a continuous-time unipolar Hall-effect switch designed for automotive and industrial motor commutation applications. It features a 3-pin SOT23W surface-mount package, operates from a supply voltage of 3.8 to 24 V, and is qualified to AEC-Q100 with an operating ambient temperature range of -40°C to 150°C. The device includes integrated reverse battery protection, a ±30 V absolute maximum supply voltage rating, and stable operation without an external bypass capacitor. It has a fast power-on time of up to 4 µs, output saturation voltage of up to 400 mV at 20 mA, and output rise and fall times of up to 400 ns under specified load conditions. Reverse battery current is limited to -10 mA at -30 V.