Description

AH1889 is a high sensitivity dual output Unipolar Hall effect IC which can detect either a North or South pole independently and switch one of its two outputs with internal pull up and pull down capability. The AH1889 is mainly designed for low voltage applications which require a quick response time and can operate over the supply voltage of 1.65V to 3.6V. To minimize PCB space AH1889 outputs have internal pull up and pull down capability and is packaged in a small low profile SOT553 package.

Features

● Two Monolithic Unipolar Hall Effect Sensor Switch

● Operation with a South Pole (OUTPUT1)

● Operation with a North Pole (OUTPUT2)

● Supply Voltage of 1.65V to 3.6V

● Quick Response Time Without Sleep Mode

● Chopper Stabilized Design Provides:

● Superior Temperature Stability

● Extremely low Switch-Point Drift

● Enhanced immunity to physical stress

● Good RF Noise Immunity

● -40°C to +85°C Operating Temperature

● ESD (Human Body Model) >4kV

● Small and Low Profile SOT553 package

Applications

● Position and proximity detection for consumer, office equipments and industrial applications

● Open and close detect switches for home appliances

● Door, lids, tray position detect switches

● Magnetic field direction detection

● Contact-less switches for consumer and industrial applications