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AH3712Q

更新时间： 2023-12-06 20:08:56
品牌 Logo 应用领域
美台 - DIODES /
页数 文件大小 规格书
19页 1107K
描述
27V Open-Drain Hall Effect Latch

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AH3712Q 数据手册

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AH3712Q  
AUTOMOTIVE HIGH-VOLTAGE, HIGH-SENSITIVITY HALL-EFFECT LATCH  
Description  
Pin Assignments  
The DIODES AH3712Q is an AEC-Q100 qualified, high-voltage, high-  
sensitivity, Hall-effect latch IC designed for brushless DC-motor  
commutation, speed measurement, angular/linear encoders, and  
position sensors in automotive applications. To support a wide range  
of demanding applications, the design is optimized to operate over  
the 3.0V to 27V supply range. With chopper-stabilized architecture  
and an internal bandgap regulator providing temperature-  
compensated supply for internal circuits, the AH3712Q 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, and the output has an overcurrent limit and a  
Zener clamp.  
(Top View)  
3 OUTPUT  
1 VDD  
GND 2  
SC59 and SOT23  
(Top View)  
3. OUTPUT  
2. GND  
VDD  
The single, open-drain output can be switched on with the South pole  
with sufficient strength, and switched off with the North pole with  
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). The output is held latched until magnetic flux  
density reverses and becomes lower than the release point (BRP).  
1.  
SIP-3  
( Top View )  
1
6
5
4
GND  
GND  
GND  
VDD  
Pad 1  
The magnetic operating and release polarity is opposite for the  
SOT23 and SC59 packages. For operation, the SOT23, SIP-3 (Bulk),  
and U-DFN2020-6/SWP packages require the south pole to the part-  
marking side, and the SC59 requires the south pole to the non-part-  
marking side.  
GND  
2
OUTPUT  
3
Pad 2  
U-DFN2020-6/SWP  
Features  
Applications  
Bipolar Latch (South Pole: On, North Pole: Off)  
3.0V to 27V Operating Voltage Range  
Brushless DC motor commutation  
Revolution per minute (RPM) measurement  
Flow meters  
High Sensitivity: BOP and BRP of ±25G Typical  
Angular and linear encoder and position sensors  
Resistant to Physical Stress  
Contactless commutation, speed measurement, and angular  
position sensing/indexing in automotive applications  
Single, Open-Drain Output AH3712Q or Internal Pull-Up  
AH3712AQ (*Future New Product)  
Output with Overcurrent Limit  
Chopper-Stabilized Design Provides  
.
.
.
Superior Temperature Stability  
Minimal Switch-Point Drift  
Enhanced Immunity to Stress  
Good RF Noise Immunity  
Reverse-Blocking Diode and Zener Clamp on Supply  
-40C to +150°C Operating Temperature  
ESD HBM: 8kV, CDM: 1kV  
Industry-Standard SC59, SOT23, SIP-3, and  
U-DFN2020-6/SWP Packages  
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  
Halogen and Antimony Free. “Green” Device (Note 3)  
The AH3712Q is suitable for automotive applications  
requiring specific change control; this part is AEC-Q100  
qualified, PPAP capable, and manufactured in IATF16949  
certified facilities.  
https://www.diodes.com/quality/product-definitions/  
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.  
4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.  
1 of 19  
www.diodes.com  
March 2023  
© 2023 Copyright Diodes Incorporated. All Rights Reserved.  
AH3712Q  
Document number: DS45415 Rev. 2 - 2  
1234567...19

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