AH1892-Z-7

AH1892-Z-7 is a micropower magnetic range selectable (Bop/Brp) omnipolar hall effect switch IC with internal pull-up and pull-down capability, designed for consumer equipment ranging from portable and battery-powered cellular phones and portable PCs to home appliances and industrial applications. The output is activated with either a north or south pole of sufficient magnetic field strength. The user can select one of two magnetic sensitivity bands via the BSEL pin without the addition of any external components, allowing a flexible but small solution. Applications include open and close detection for gaming and cellular phones, holster and dock detection for cellular phones, cover switch in portable and tablet PCs, digital still and video cameras, tray, door and covers position detection for printers and scanners, and contactless switch in consumer and industrial products.

• Programmable operate and release points
• Supply voltage of 1.6V to 3.6V
• Micropower operation
• Chopper stabilized design, superior temperature stability
• Extremely low switch-point drift, insensitive to physical stress
• No external pull up resistors required
• Good RF noise immunity, 8kV ESD on supply and output pins
• Average supply current is 4.3µA typ at VDD = 1.8V, TA = +25°C
• SOT553 package
• Operating temperature range from -40 to +85°C

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