AH1895数据手册传感器变送器的磁性传感器-开关（固态）规格书PDF

描述 Description

The AH1895 is a medium sensitivity micropower Omnipolar Hall effect switch IC with internal pull up and pull down capability. Designed for portable and battery powered equipment such as cellular phones and portable PCs to home appliances and industrial applications, the average supply current is only 4.3uA at 1.85V. To support portable equipment the AH1895 can operate over the supply range of 1.6V to 3.6V and uses a hibernating clocking system to minimize the power consumption. Based on chopper stabilized architecture the AH1895 provides a reliable solution over the whole operating range. To minimize PCB space the AH1895 is available in small low profile packages .

The single output is activated with either a north or south pole of sufficient magnetic field strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop), the output will be turned on (pul°C low) and held until B is lower than release point (Brp). The output will remain off when there is no magnetic field.

The AH1895 is available in a small low profile X1-DFN1216-4 and leaded SOT553 packages

应用 Application

Holster or Cover Detect for Cellular Phones and Tablets PCsOpen and Close Detect for Fflip/Slide Cellular PhonesCover or Display Switch in Low Profile Portable PCs (eg Ultrabooks)Digital Still, Video Cameras and Handheld Gaming ConsolesDoor, Lids and Tray Position Switches Level, Proximity and Position SwitchesContact-Less Switches in Home Appliances and Industrial Applications
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