The A3245 is an integrated digital output Hall switch from Allegro MicroSystems, Inc. It has an integrated regulator that allows operation up to 24 V and has a wide operating temperature range of up to 150°C.
The Allegro A3245 is an integrated circuit designed as a chopper-stabilized omnipolar Hall-effect switch with a digital output. It features an integrated regulator that permits operation up to 24 V, making it the first device of its kind capable of such high-voltage operation while maintaining superior performance over extended temperature ranges up to +150°C.
The device permits operation up to 24 V.
No, it is an omnipolar switch that activates with either a north or south polarity field.