The A1155LUA-T is a two-wire, unipolar Hall-effect switch with a 3-pin ultramini SIP through-hole package, operating from 3 to 24 V and rated for ambient temperatures from -40°C to 150°C. It features chopper stabilization for low switchpoint drift, on-chip supply transient and reverse-battery protection, and is AEC-Q100 automotive qualified. The device has a supply current of 5 to 6.9 mA and a magnetic operate point of 20 to 60 G. The part includes built-in voltage regulation and is designed for applications such as seat track and seat belt buckle position sensing.
The A115x family provides a cost-effective solution for two-wire Hall-effect switching, with chopper stabilization for enhanced temperature stability and a variety of package options for design flexibility.
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Datasheets
Digital Switch Unipolar Switch Current Source Hall Effect 3-SIP
| Allegro MicroSystems Inc. | DigiKey | |
|---|---|---|
| Product Category | Proximity Sensors | Proximity Sensors |
| Product Number | A1155LUA-T | 620-1415-ND |
| Product Name | Chopper-Stabilized, Two-Wire Hall-Effect Switch | Switches (Solid State) |
| Sensor Technology | Hall Effect Proximity Sensor | Hall Effect Proximity Sensor |
