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AH3372

更新时间： 2023-12-06 20:11:53
品牌 Logo 应用领域
美台 - DIODES /
页数 文件大小 规格书
15页 791K
描述
28V Open-drain Unipolar Hall Switch

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AH3372 数据手册

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AH3372  
HIGH VOLTAGE HIGH SENSITIVITY  
HALL EFFECT UNIPOLAR SWITCH  
Description  
Pin Assignments  
The AH3372 is a high voltage 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 AH3372 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.  
1.  
GND  
VDD  
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 require south pole to the part marking side to  
operate while SC59 requires south pole to the non-part marking side.  
Applications  
Features  
•
Position and Proximity Sensing in Consumer Home Appliances,  
•
•
•
•
•
Unipolar Operation  
Building Automation, Office Equipments and Industrial Applications  
High Sensitivity: BOP and BRP of +30G and +20G Typical  
Single Open Drain Output with Over Current Limit  
3.0V to 28V Operating Voltage Range  
Chopper Stabilized Design Provides  
•
•
•
•
•
Open and Close Detect  
Position Detect  
Level Detect  
Flow Meters  
o
o
o
Superior Temperature Stability  
Minimal Switch Point Drift  
Contact-less switches  
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  
AH3372  
Document number: DS38874 Rev. 2 - 2  
1234567...15

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