AH1803-WG-7 Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH1803 USE AH1806 Green MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Description Pin Assignments (Note 4) The AH1803 has two Hall effect plates and a CMOS output driver. SC59 (commonly known as SOT23 in Asia) The device is primarily designed for battery-operated, handheld ( Top View ) equipment (such as cellular and cordless phones, PDAs). The total operation power is down to 24W in the 3V supply. 2. Output Either the north or south pole turns the output on with sufficient strength. The output turns off under no magnetic field. GND 3. 1. Vdd While the magnetic flux density (B) is larger than operate point (Bop), the output turns on (low). The output is held until B is lower than release point (Brp) then turns off (high). DFN2020-6 ( Top View ) 5. GND 6. NC 4. NC Features Micropower Operation Operation with North or South Pole 2.4 to 5.5V Battery Operation Chopper Stabilized Superior Temperature Stability Extremely Low Switch-Point Drift Insensitive to Physical Stress Good RF Noise Immunity -40C to +85C Operating Temperature Low-Profile 3-Pin SC59 (Commonly Known as SOT23 in Asia) 1. Vdd 2. NC 3. Output and DFN2020-6 Package ESD (HBM) > 4KV for DFN2020-6 SC59 (commonly known as SOT23 in Asia) and DFN2020-6: Available in Green Molding Compound (No Br, Sb) Applications Lead-Free Finish RoHS Compliant (Notes 1 & 2) Cellular Phone Halogen and Antimony Free. Green Device (Note 3) PDA Cordless Phone Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3).compliant. All applicable RoHS exemptions applied. 2. See Offset Offset Cancelling Cancelling AH1803 Typical Applications Circuit 2.4~5.5V C* Output AH1803 GND C is for power stabilization and to strengthen the noise immunity, the * recommended capacitance is 10nF~100nF. Pin Descriptions Pin Name P/I/O Description Vdd P/I Power Supply Input GND P/I Ground Output O Output Pin NC No Connected Functional Block Diagram Vdd Power switch Hall Plate Amp Latch Output Logical Hall Plate Amp Latch GND 2 of 8 AH1803 April 2018 Diodes Incorporated www.diodes.com Document number: DS31193 Rev. 10 - 3