Datasheet AH4930Q (Diodes)

AH4930Q AUTOMOTIVE 3D MAGNETIC LINEAR HALL SENSOR WITH I2C INTERFACE Description Pin Assignments
The AH4930Q automotive 3D magnetic chip is a miniature monolithic sensor IC sensitive to the three orthogonal components of the flux density applied to the IC. On-chip integrated temperature sensor data is available for system functions such as junction temperature indication and temperature compensation of magnetic field
(Top View)
measurement. A precision analog signal-path along with integrated ADC digitizes the measured analog magnetic field values, and this allows the AH4930Q with the correct magnetic circuit to decode the SCL/INT 1 6 SDA absolute position of any moving magnet. With its magnetic field detection in x, y, and z-direction the sensor reliably measures three- dimensional, linear and rotation movements. GND 2 AH4930Q 5 GND The AH4930Q measurement data can be read over I2C bus. The sensor is runtime programmable and offers on-chip temperature GND 3 7 4 VDD compensation of the measured units. The selectable power mode control unit enables micro-power and continuous measurement functionality. Applications include joysticks, control elements (white
SOT26 (Type A1)
goods, multifunction knops), or electric meters (anti-tampering) and any other application that requires accurate angular measurements or low power consumptions.
Features Applications
• 3D Magnetic Flux Density Sensing • Knobs/levers • Low Power-Down Current 9nA typical • Joysticks with push • Very Low Power Consumption = 13μA During Operation (10Hz, • Rotaries with push typ) • Linear (long strokes) • Digital Output via Standard I2C Interface up to 1 Mbit/sec • Stalk gear shifters • 12-bit Data Resolution for Each Measurement Direction • Shifter position sensors • Bx, By and Bz Linear Field Measurement up to +-1300Gs • Robotics shaft positions • Different Power Modes and Variable Update Frequencies • Flap positions • Supply Voltage Range = 2.8V to 5.5V, Temperature Range • Mirror positions TJ = -40°C to +125°C • Flow meters • Small, Industrial 6-Pin SOT26 (Type A1) Package • Load detection • Interrupt Signal Available to Wake Up a Microcontroller to Save • Water levels System Power and Watch Dog in Wake-Up Mode • Multimedia rotaries/push selectors • Temperature Measurement • Door handles & door locks •
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Motor commutation •
Halogen and Antimony Free. “Green” Device (Note 3)
• Power tools (speed, torque, direction selections) •
The AH4930Q is suitable for automotive applications
• 2-wheelers (throttle controls, multifunction switchgears)
requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF16949 certified facilities. https://www.diodes.com/quality/product-definitions/
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 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AH4930Q 1 of 23 April 2025 Document number: DS45843 Rev. 2 - 2
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