Description
The AH3564Q is an AECQ100-qualified high-voltage, high-sensitivity
Hall effect omnipolar switch IC designed for position and proximity
sensing in automotive applications, such as in seat and seatbelt
buckle, steering lock/immobilization, gear stick, transmission actuator
and gear position, HVAC compression, wiper, door/trunk closure, and
so on. To support a wide range of demanding applications, the
design is optimized to operate over the supply range of 3.0V to 28V.
With chopper-stabilized architecture and an internal bandgap
regulator to provide temperature compensated supply for internal
circuits, the AH3564Q provides a reliable solution over the whole
operating range. For robustness and protection, the device has a
reverse blocking diode with a zener clamp on the supply. The output
has an overcurrent limit and a zener clamp.
The single open-drain output can be switched on with south or north
pole of sufficient strength. When the magnetic flux density (B)
perpendicular to the package is larger than the operate point (BOP),
the output is switched on (pulled low) and stays on until the magnetic
flux density B is lower than the release point (BRP).
AH3564Q
HIGH VOLTAGE HIGH SENSITIVITY
AUTOMOTIVE HALL EFFECT OMNIPOLAR SWITCH
Pin Assignments
(Top View)
GND 2
3 OUTPUT
1 VDD
SOT23
(Top View)
SIP-3 (Bulk Pack)
3. OUTPUT
2. GND
1. VDD
Features
• Omnipolar Operation
• High Sensitivity: BOP and BRP of ±40G and ±25G Typical
• Single Open Drain Output with Overcurrent Limit
• 3.0V to 28V Operating Voltage Range
• Chopper Stabilized Design Provides
• Superior Temperature Stability
• Minimal Switch Point Drift
• Enhanced Immunity to Stress
• Good RF Noise Immunity
• Reverse Blocking Diode
• Zener Clamp on Supply and Output Pins
• -40°C to +150°C 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)
Applications
• Position and Proximity Sensing in Automotive Applications.
• Open and Close Detect
• Position Detect
• Level Detect
• Flow Meters
• Contactless Switches
• Seatbelt Buckle
• Seat Position
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.
AH3564Q
Document number: DS40866 Rev. 1 - 2
1 of 14
www.diodes.com
July 2018
© Diodes Incorporated
