AH1806-P-A Diodes Incorporated

AH1806 HIGH SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH Description Pin Assignments The AH1806 is a high-sensitivity, micro-power Omnipolar Hall effect (Top View) switch IC, designed for portable and battery powered consumer to home appliance and industrial applications such as smart-meter 3 OUTPUT magnetic tamper detection. Based on two sensitive Hall effect plates and a copper stabilized architecture the AH1806 provides a reliable GND 2 solution over the whole operating range. To support portable and battery powered equipment, the design has been optimized to operate 1 V DD over the supply range of 2.5V to 5.5V and consumes only 24W with a supply of 3V. SC59 The single-open-drain output can be switched on with either a North or (Top View) South pole of sufficient field strength. When the magnetic flux density 1 5 OUTPUT NC (B) perpendicular to the package is larger than operate point (Bop) the 2 output is switched on (pulled low). The output is turned off when GND B becomes lower than the release point (Brp). The output will remain 3 4 V NC DD off when there is no magnetic field. SOT553 Features 3. OUTPUT Omnipolar (North or South Pole) Operation 2. GND High Sensitivity 1. V DD Single Open Drain Output Micropower Operation SIP-3 (Bulk Pack) 2.5V to 5.5V Operating Range Chopper Stabilized Design Provides: Superior Temperature Stability Minimal Switch Point Drift Applications Enhanced Immunity to Stress Doors, Lids, Cover and Tray Position Detect Switches Good RF Noise Immunity Display Switch for Portable PCs and Tablets -40C to +85C Operating Temperature On/Off Switch for PDAs and Digital Cameras ESD (HBM) > 6KV Liquid Level Detection Small Low Profile SOT553 and Industry Standard SC59, Smart Meters SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) Packages Position, Proximity and Level Detection Contact-Less Switch in Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Battery Powered Consumer, Home Appliances and Industrial Halogen and Antimony Free. Green Device (Note 3) Applications Notes: 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 Offset Offset Cancellation Cancellation AH1806 Typical Applications Circuit 2.5V to 5.5V V DD R L OUTPUT AH1806 C IN GND Note: 4. C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF to 100nF. IN R is the pull-up resistor; the recommended resistance is 10k to 100k. L Pin Descriptions Packages: SC59 and SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) Pin Pin Function Number Name 1 V Power Supply Input DD 2 GND Ground 3 OUTPUT Output Package: SOT553 Pin Pin Function Number Name 1 NC No Connection (Note 5) 2 GND Ground 3 NC No Connection (Note 5) 4 V Power Supply Input DD 5 OUTPUT Output Note: 5. NC is No Connection pin and is not connected internally. This pin can be left open or tied to ground. Functional Block Diagram V DD Sleep/Awake Logic and Power Switch Hall Plate Amp Latch OUTPUT Output Driver GND Controller Hall Plate Amp Latch 2 of 12 AH1806 February 2018 Diodes Incorporated www.diodes.com Document number: DS36104 Rev. 8 - 2 NEW PRODUCT