AH3563Q HIGH VOLTAGE HIGH SENSITIVITY AUTOMOTIVE HALL EFFECT OMNIPOLAR SWITCH Description Pin Assignments The AH3563Q is an AEC-Q100 qualified high-voltage, high-sensitivity (Top View) Hall effect omnipolar switch IC designed for position and proximity sensing in automotive applications, such as in seat and seatbelt 3 OUTPUT buckle, steering lock/immobilization, gear stick, transmission actuator GND 2 and gear position, HVAC compression, wiper, door/trunk closure, and so on. To support a wide range of demanding applications, the design 1 V DD is optimized to operate over the supply range of 3.0V to 28V. With chopper-stabilized architecture and an internal bandgap regulator to SOT23 provide temperature compensated supply for internal circuits, the AH3563Q provides a reliable solution over the whole operating range. For robustness and protection, the device has a reverse blocking (Top View) diode with a zener clamp on the supply. The output has an overcurrent limit and a zener clamp. 3. OUTPUT 2. GND The single open-drain output can be switched on with south or north 1. V DD pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than the operate point (B ), OP SIP-3 (Bulk Pack) the output is switched on (pulled low) and is held on until the magnetic flux density B is lower than the release point (B ). RP Features Applications Position and Proximity Sensing in Automotive Applications Omnipolar Operation Open and Close Detect High Sensitivity: BOP and BRP of 30G and 20G Typical Position Detect Single Open-Drain Output with Overcurrent Limit Level Detect 3.0V to 28V Operating Voltage Range Flow Meters Chopper Stabilized Design Provides Contactless Switches Superior Temperature Stability Seatbelt Buckle Minimal Switch Point Drift Seat Position Enhanced Immunity to Stress Good RF Noise Immunity Reverse Blocking Diode Zener Clamp on Supply and Output Pins -40C to +150C Operating Temperature ESD: HBM > 8kV, CDM > 2kV Industry Standard SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) The AH3563Q is suitable for automotive applications requiring specific change control this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Low-Pass Filter Sample and Hold Dynamic Offset Cancellation AH3563Q Typical Applications Circuit 3.0V to 28V V DD R L OUTPUT AH3563Q C IN GND Note: 4. C is for power stabilization and to strengthen the noise immunity the recommended capacitance is 10nF ~ 100nF. IN Pin Descriptions Packages: SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) Pin Number Pin Name Function 1 VDD Power Supply Input 2 GND Ground 3 OUTPUT Output Pin Functional Block Diagram V DD Power switch To All Subcircuits OUTPUT Amp Amp Control Current Limit GND 2 of 14 AH3563Q December 2020 Diodes Incorporated www.diodes.com Document number: DS40865 Rev. 3 - 2