AH1902-Z-7

AH1902 HIGH SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH NEW PRODUCT Description Pin Assignments The AH1902 is a high-sensitivity micropower Omnipolar Hall effect switch IC with internal pull up and pull down capability. Designed for portable and battery powered consumer equipment such as cellular phones and portable PCs to office equipment, home appliances and industrial applications, the average supply current is only 4.3μA at 1.8V. To support potable equipment the AH1902 can operate over the supply range of 1.6V to 3.6V and uses a hibernating clocking system to minimize the power consumption. To minimize PCB space, the AH1902 is available in small low profile X1-DFN1216-4, X2-DFN2015-6 and SOT553 packages. ( Top View ) ( Top View ) OUTPUT 1 4 GND 2 3 VDD NC 2 5 NC NC 3 4 GND NC X2-DFN2015-6 NC 1 GND 2 NC 3 5 OUTPUT 4 VDD SOT553 Applications             Omnipolar Operation (North or South Pole) Supply Voltage of 1.6V to 3.6V High Sensitivity Micropower Operation Chopper Stabilized Design Provides: Superior Temperature Stability Minimal Switch Point Drift Enhanced Immunity to Physical Stress No External Pull-up Resistors Required Good RF Noise Immunity -40°C to +85°C Operating Temperature High ESD capability of 8kV (Human Body Model) Small Low Profile X1-DFN1216-4, X2-DFN2015-6 and SOT553 Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 6 ( Top View ) Features   1 X1-DFN1216-4 The 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 (pulled low) and held until B is lower than release point (Brp).      OUTPUT VDD Open and Close Detect for Flip/Slide Cellular Phones Smart Cover or Dock Detect for Cellular Phones and Tablet PCs Cover or Display Switch in Portable PCs (eg: Ultrabook) Digital Still, Video Cameras and Handheld Gaming Consoles Door, Lids and Tray Position Switches Level, Proximity and Position Switches Contact-Less Switches in Home Appliances and Industrial Applications 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain