AH3368Q
HIGH VOLTGAE LOW SENSITIVITY
AUTOMOTIVE HALL EFFECT UNIPOLAR SWITCH
Description
Pin Assignments
The AH3368Q is an AECQ100 qualified high voltage low sensitivity
Hall Effect Unipolar switch IC designed for position and proximity
sensing in automotive applications such as in seat and seatbelt
buckle, steering lock/immobilisation, gear stick, transmission actuator
and gear position, HVAC compression, wiper, door/trunk closure, etc.
To support wide range of demanding applications, the design has
been 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
AH3368Q 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
over current limit and a Zener clamp.
(Top View)
3 OUTPUT
GND 2
1 VDD
SOT23
The single open drain output can be switched on with South 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 is held on until magnetic flux density B is
lower than the release point (BRP). The output remains switched off
for North pole fields to or no magnetic fields.
(Top View)
3. OUTPUT
2. GND
Features
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Unipolar Operation
VDD
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Low Sensitivity: BOP and BRP of 150G and 125G Typical
Single Open Drain Output with Over Current Limit
3.0V to 28V Operating Voltage RP0ange
Chopper Stabilized Design Provides
SIP-3 (Bulk Pack)
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Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Stress
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Good RF Noise Immunity
Reverse Blocking Diode
Zener Clamp on Supply and Output Pins
-40C to +150C Operating Temperature
ESD: HBM > 8kV, CDM: > 2kV
AECQ100 Grade 0 Qualified
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
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Position and Proximity Sensing in Automotive Applications
Seat Position
Seatbelt Buckle
Steering Lock/Immobilisation
Gear Stick
HVAC Compression
Transmission Actuator
Transmission Gear Position
Wipers
Sunroof and Windows
Door/Trunk Closure
Door Locks
Contact-Less Switches
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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.
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www.diodes.com
November 2016
© Diodes Incorporated
AH3368Q
Document number: DS39180 Rev. 1 - 2