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) & 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.
AH3382
Document number: DS38921 Rev. 2 - 2
1 of 14
www.diodes.com
May 2018
© Diodes Incorporated
