Allegro MicroSystems Inc. Magnetic Sensors - Magnetic Sensors - Switches (Solid State) - A1192LLHLT-T A1192LLHLT-T

The A1192LLHLT-T is a programmable, chopper-stabilized, two-wire Hall-effect switch designed for automotive applications. It features a factory-set temperature coefficient suitable for use with ferrite or rare-earth magnets and allows for field programming to optimize switchpoints. The device is AEC-Q100 automotive qualified, ensuring reliability in automotive environments. This Hall-effect switch operates with a supply voltage range of 3 to 24 V and incorporates an on-chip voltage regulator. It utilizes a high-speed, 4-phase chopper stabilization technique, which minimizes switchpoint drift across a wide temperature range and enhances resistance to thermal and mechanical stresses. The device also includes internal protection features such as supply transient protection and reverse-battery protection, with a clamping structure that meets ISO 7637-2 standards. The A1192LLHLT-T is available in a compact SOT-23W package, making it suitable for surface-mount applications. It is lead-free and compliant with RoHS standards. The operating temperature range is from -40¬8C to 150¬8C, and it is designed for solid-state reliability with robust EMC and ESD performance. This product is ideal for applications requiring precise magnetic sensing, such as seat track position sensing and shift selector position detection.