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OCH178
Micro Power Omnipolar Hall-effect Sensor Switch
◼ General Description
◼ Features
The OCH178 Omnipolar Hall-effect Sensor IC is
⚫ Micro power consumption ideal for
fabricated from mixed signal CMOS technology. It is
battery-powered applications
comprised of two Hall plates and a CMOS output
⚫ Omnipolar (operation with magnetic field of either
driver, mainly designed for battery-operation,
north or south pole), easy to use as output
hand-held equipment (such as Cellular and Cordless
switches with both North and South pole
Phone, PDA). The total power consumption in normal
⚫ Input Voltage Range: 2.4V to 5.5V
operation is typically 24μW with a 3V power source.
⚫ Very High Sensitivity Hall Sensor
Either north or south poles of sufficient strength will turn the output on.
OCH178 Datasheet
