Allegro MicroSystems Inc. Continuous-Time Switch Unipolar Switch A1102EUA-T

The A1102EUA-T is a unipolar Hall-effect switch in the A110x family, designed for automotive and industrial motor commutation applications. It features a 3-pin SIP through-hole package and operates from a 3.8 V to 24 V supply with a ±30 V absolute maximum voltage rating. The device is AEC-Q100 automotive qualified and provides stable operation from -40°C to 85°C ambient temperature. It includes integrated reverse battery protection, ESD protection, and regulator stability without a bypass capacitor. The output is an open-drain NMOS transistor capable of sinking up to 25 mA with an on-voltage of 215 to 400 mV at 20 mA. Power-on time is less than 4 µs, and output rise and fall times are each under 400 ns under specified load conditions.