A3161 Datasheet - Allegro MicroSystems

A3161 HALL-EFFECT SWITCH

Data Sheet 27621.30A‡ 3161 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS This Hall-effect switch is a monolithic integrated circuit designed to operate continuously over extended temperatures to +85°C. The unipolar switching characteristic makes this device ideal for use with a simple bar or rod magnet. The A3161ELT and A3161EUA are identical except for package. Each device includes a voltage regulator for operation with supply voltages of 3.5 to 25 volts, reverse battery protection diode, quadra.

A3161 Features

* I I I I I I I I I Pinning is shown viewed from branded side. ABSOLUTE MAXIMUM RATINGS at TA = +25°C Supply Voltage, VCC Continuous 28 V Surge (tw ≤ 100 ms) 40 V Reverse Battery Voltage, VRCC Continuous -25 V Surge (tw ≤ 100 ms) -40 V Magnetic Flux Density, B Unlimited Output OFF Voltage, VOUT

A3161_AllegroMicroSystems.pdf