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AH3376
Document number: DS38919 Rev. 1 - 2
1 of 15
www.diodes.com
July 2016
© Diodes Incorporated
NEW PROD UCT
AH3376
HIGH VOLTAGE LOW SENSITIVITY
HALL EFFECT UNIPOLAR SWITCH
Description
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.
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
OP
) the output is
switched on (pulled low) and is held on until magnetic flux density B
is lower than the release point (B
RP
). The output remains switched off
for North pole fields to or no magnetic fields.
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.
Features
• Unipolar Operation
• Low Sensitivity: B
OP
and B
RP
of +100G and +85G Typical
• 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
• Reverse Blocking Diode
• Zener Clamp on Supply and Output Pins
• -40C to +125C 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)
Pin Assignments
(Top View)
1 V
DD
GND 2
3 OUTPUT
SC59 and SOT23
(Top View)
1.
V
DD
2.
GND
3.
OUTPUT
SIP-3 (Bulk Pack)
Applications
• Position and Proximity Sensing in Consumer Home Appliances,
Building Automation, Office Equipments and Industrial Applications
• Open and Close Detect
• Position Detect
• Level Detect
• Flow Meters
• 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 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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