Allegro MicroSystems Inc. Continuous-Time Switch Unipolar Switch A1102LLHLX-T

The A1102LLHLX-T is a unipolar Hall-effect switch in the A110x family, designed for automotive and industrial motor commutation. It features a 3-pin SOT23W surface-mount package, operates over a supply voltage of 3.8 to 24 V, and is rated for an ambient temperature range of -40°C to 150°C. The device includes integrated reverse battery protection, a ±30 V absolute maximum voltage rating, and AEC-Q100 automotive qualification. Output saturation voltage is specified at 215 to 400 mV under 20 mA load, with a power-on time of up to 4 μs and output rise and fall times of up to 400 ns. The part has a maximum output sink current of 25 mA, low-noise continuous-time operation, and stable performance without a bypass capacitor.