AH3362Q
HIGH VOLTAGE HIGH SENSITIVITY
AUTOMOTIVE HALL EFFECT UNIPOLAR SWITCH
Description Pin Assignments
The AH3362Q is an AECQ100 qualified high voltage high sensitivity
Hall Effect Unipolar switch IC designed for position and proximity
sensing in automotive applications such as in seat and seatbelt
(Top View)
buckleL, 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
3 OUTPUT
design has been optimized to operate over the supply range of 3.0V
GND 2
to 28V. With chopper stabilized architecture and an internal bandgap
regulator to provide temperature compensated supply for internal
1 V
DD
circuits, the AH3362Q 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
SC59 and SOT23
has an over current limit and a Zener clamp.
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 (B ) the output is
OP
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)
The magnetic operating and release polarity is opposite for SOT23
3.
OUTPUT
and SC59 packages. The SOT23 and SIP-3 (Ammo Pack), SIP-3
2. GND
(Bulk Pack) packages require south pole to the part marking side to
operate while SC59 requires south pole to the non-part marking side.
1. V
DD
SIP-3 (Bulk Pack)
Features
Unipolar Operation
High Sensitivity: B and B of 30G and 20G Typical
OP RP
Single Open Drain Output with Over Current Limit
3.0V to 28V Operating Voltage Range
Chopper Stabilized Design Provides
o Superior Temperature Stability
o Minimal Switch Point Drift
o Enhanced Immunity to Stress
Good RF Noise Immunity
Applications
Reverse Blocking Diode
Position and Proximity Sensing in Automotive Applications
Zener Clamp on Supply and Output Pins
Seat Position
-40C to +150C Operating Temperature
Seatbelt Buckle
ESD: HBM > 8kV, CDM: > 2kV
Steering Lock / Immobilisation
AECQ100 Grade 0 Qualified
Gear Stick
Industry Standard SC59, SOT23 and SIP-3 (Ammo Pack), SIP-3
HVAC Compression
(Bulk Pack) Packages
Transmission Actuator
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Transmission Gear Position
Halogen and Antimony Free. Green Device (Note 3)
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 Low-Pass Filter
Sample and
Hold
Dynamic Offset
Cancellation
AH3362Q
Typical Applications Circuit (Note 4)
3.0V to 28V
V
DD
R
L
OUTPUT
AH3362Q
C
IN
GND
Note: 4. C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF ~ 100nF.
IN
R is the pull-up resistor.
L
Pin Descriptions
Package: SC59, SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack)
Pin Number Pin Name Function
1 Power Supply Input
V
DD
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 15
AH3362Q November 2016
Diodes Incorporated
www.diodes.com
Document number: DS39174 Rev. 1 - 2
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