AH3376
HIGH VOLTAGE LOW SENSITIVITY
HALL EFFECT UNIPOLAR SWITCH
Description
Pin Assignments
The AH3376 is a high voltage low sensitivity Hall Effect Unipolar
switch IC designed for proximity, position and level sensing in
industrial and consumer home appliances and personal care
applications. 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 AH3376 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
1 VDD
GND 2
SC59 and 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
VDD
1.
SIP-3 (Bulk Pack)
The magnetic operating and release polarity is opposite for SOT23
and SC59 packages. The SOT23 and SIP-3 (Ammo Pack), SIP-3
(Bulk Pack) packages will require south pole to the part marking side
to operate while the SC59 will require south pole to the non-part
marking side.
Applications
•
Position and Proximity Sensing in Consumer Home Appliances,
Features
Building Automation, Office Equipments and Industrial Applications
•
•
•
•
•
Open and Close Detect
Position Detect
Level Detect
•
•
•
•
•
Unipolar Operation
Low Sensitivity: BOP and BRP of +100G and +85G Typical
Single Open Drain Output with Over Current Limit
3.0V to 28V Operating Voltage Range
Chopper Stabilized Design Provides
Flow Meters
Contact-less Switches
o
o
o
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 +125°C Operating Temperature
ESD: HBM ＞ 6kV
Industry Standard SC59, 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)
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.
1 of 15
www.diodes.com
May 2018
© Diodes Incorporated
AH3376
Document number: DS38919 Rev. 2 - 2
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