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AH3382

HIGH VOLTAGE ULTRA HIGH SENSITIVITY HALL EFFECT LATCH


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AH3382 pdf
Description
AH3382
HIGH VOLTAGE ULTRA HIGH SENSITIVITY HALL
EFFECT LATCH WITH INTERNAL PULL-UP RESISTOR
Pin Assignments
The AH3382 is a high voltage ultra high 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 AH3382 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)
GND 2
3 OUTPUT
1 VDD
SC59 and SOT23
The internally pulled-up 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.
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 SC59 will require south pole to the non-part marking
side.
(TOP View)
SIP-3 (Bulk Pack)
3. OUTPUT
2. GND
1. VDD
Features
Unipolar Operation
High Sensitivity: BOP and BRP of +55G and +35G Typical
Internally Pull-up Resistor on the 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)
Applications
Position and Proximity Sensing in Industrial Applications
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.
AH3382
Document number: DS38921 Rev. 1 - 2
1 of 14
www.diodes.com
July 2016
© Diodes Incorporated



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AH3382 pdf
Typical Applications Circuit
3.0V to 28V
VDD
CIN
AH3382
OUTPUT
GND
Note:
4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF ~ 100nF.
Pin Descriptions
Package: SC59, SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack)
Pin Number
1
2
3
Pin Name
VDD
GND
OUTPUT
Power Supply Input
Ground
Output Pin
Function
Functional Block Diagram
AH3382
VDD
Power
switch
To All Subcircuits
Amp
Amp
Control
OUTPUT
Current
Limit
GND
AH3382
Document number: DS38921 Rev. 1 - 2
2 of 14
www.diodes.com
July 2016
© Diodes Incorporated



Part Number AH3382
Description HIGH VOLTAGE ULTRA HIGH SENSITIVITY HALL EFFECT LATCH
Maker Diodes - Diodes
Total Page 14 Pages
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