AH1822-FU4G-7

AH1822 MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH Description Pin Assignments AH1822 is comprised of two Hall effect plates and an open-drain output driver, mainly designed for battery-operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total power consumption in normal operation is typically 24µW with a 3V power source. ( Top View ) NC Vdd GND Either north or south pole of sufficient strength will turn the output on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operating point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off. 1 6 NC 2 5 Output 3 4 GND X2-DFN2015-6 Features          Notes: Micropower Operation Operation with Magnetic Field of Either North or South Pole (Omnipolar) 2.5V to 5.5V Battery Operation Chopper Stabilized  Superior Temperature Stability  Extremely Low Switch-Point Drift  Insensitive to Physical Stress Good RF Noise Immunity -40C to +85C Operating Temperature ESD (HBM) ＞ 5kV Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Note: 4. NC is “No Connection” which is recommended to be tied to ground. Applications    Cover Switch in Clam-Shell Cellular Phones Cover Switch in Notebook PC/PDA Contact-Less Switch in Consumer Products 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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