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AH3781-SA-7

更新时间： 2024-02-17 05:51:15
品牌 Logo 应用领域
美台 - DIODES 输出元件传感器换能器
页数 文件大小 规格书
13页 461K
描述
Hall Effect Sensor, -4mT Min, 4mT Max, 30-55mA, Rectangular, Surface Mount, GREEN, SOT-23, 3 PIN

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AH3781-SA-7 技术参数

是否Rohs认证： 符合生命周期：Active
Reach Compliance Code：compliantFactory Lead Time：19 weeks
风险等级：1.7主体宽度：1.3 mm
主体高度：1.025 mm主体长度或直径：2.9 mm
滞后：5 mTJESD-609代码：e3
最大磁场范围：4 mT最小磁场范围：-4 mT
安装特点：SURFACE MOUNT最大工作电流：5.8 mA
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：55 mA输出范围：30-55mA
输出类型：CURRENT OUTPUT封装形状/形式：RECTANGULAR
传感器/换能器类型：MAGNETIC FIELD SENSOR,HALL EFFECT最大供电电压：28 V
最小供电电压：3 V表面贴装：YES
端子面层：Matte Tin (Sn)端接类型：SOLDER
Base Number Matches：1

AH3781-SA-7 数据手册

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AH3781  
HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH  
WITH INTERNAL PULL-UP RESISTOR  
Description  
Pin Assignments  
The AH3781 is a high-voltage, high-sensitivity Hall Effect latch IC  
with internal pull-up resistor designed for commutation of brushless  
DC motors, flow meters, linear encoders and position sensors in  
industrial, consumer home appliance and personal care applications.  
To support a wide range of demanding applications, the design is  
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  
AH3781 provides a reliable solution over the whole operating range.  
For robustness and protection, the device has a Zener clamp on the  
supply. The output has an overcurrent limit and a Zener clamp.  
(Top View)  
3 OUTPUT  
GND 2  
1 VDD  
SOT23  
(Top View)  
The internally pulled-up output can be switched on with South pole of  
sufficient strength and switched off with North pole of sufficient  
strength. When the magnetic flux density (B) perpendicular to the part  
marking surface 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).  
3. OUTPUT  
2. GND  
VDD  
1.  
SIP-3  
Applications  
Features  
•
•
•
•
•
Brushless DC Motor Commutation  
Revolution Per Minute (RPM) Measurement  
Flow Meters  
•
•
•
•
•
•
Bipolar Latch Operation (South Pole: On, North Pole: off)  
3.0V to 28V Operating Voltage Range  
High Sensitivity: BOP and BRP of +25G and -25G Typical  
Internally Pull-up Resistor on the Output Pin  
Output Overcurrent Limit  
Angular and Linear Encoder and Position Sensors  
Contactless Commutation, Speed Measurement and Angular  
Position Sensing/Indexing in Consumer Home Appliances, Office  
Equipments and Industrial Applications  
Chopper Stabilized Design Provides  
-
-
-
Superior Temperature Stability  
Minimal Switch Point Drift  
Enhanced Immunity to Stress  
•
•
•
•
•
•
•
Good RF Noise Immunity  
Zener Clamp on Supply and Output Pins  
-40°C to +125°C Operating Temperature  
ESD (HBM): 6kV  
Industry Standard SOT23 and SIP-3 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) compliant.  
2. See http://www.diodes.com/quality/lead_free.html 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 13  
www.diodes.com  
September 2015  
© Diodes Incorporated  
AH3781  
Document number: DS37903 Rev. 1 - 2  
1234567...13

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AH3782-P-7 DIODES

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AH3782-P-A DIODES

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 		Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Through Hole Mount, GREEN, SI
AH3782-P-B DIODES

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 		Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Through Hole Mount, GREEN, SI
AH3782-SA-7 DIODES

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 		Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Surface Mount, GREEN, SOT-23,
AH3782-SA-A DIODES

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 		HIGH-VOLTAGE, HIGH-SENSITIVITY HALL EFFECT LATCH WITH INTERNAL PULL-UP RESISTOR
AH3782-SA-B DIODES

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 		HIGH-VOLTAGE, HIGH-SENSITIVITY HALL EFFECT LATCH WITH INTERNAL PULL-UP RESISTOR
AH3782-W-7 DIODES

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 		Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Surface Mount, GREEN, SC-59,
AH3782-W-A DIODES

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 		HIGH-VOLTAGE, HIGH-SENSITIVITY HALL EFFECT LATCH WITH INTERNAL PULL-UP RESISTOR
AH3782-W-B DIODES

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 		HIGH-VOLTAGE, HIGH-SENSITIVITY HALL EFFECT LATCH WITH INTERNAL PULL-UP RESISTOR

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