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AH1903-FA-7

更新时间： 2024-11-28 14:47:39
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
11页 557K
描述
Hall Effect Sensor, 0.9mT Min, 4.8mT Max, 0.2-1.6V, Rectangular, Surface Mount, 1.20 X 1.60 MM, GREEN, DFN-4

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AH1903-FA-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：1.74Is Samacsys：N
主体宽度：1.2 mm主体高度：0.5 mm
主体长度或直径：1.6 mm滞后：1 mT
JESD-609代码：e3最大磁场范围：4.8 mT
最小磁场范围：0.9 mT安装特点：SURFACE MOUNT
最大工作电流：0.013 mA最高工作温度：85 °C
最低工作温度：-40 °C输出范围：0.2-1.6V
输出类型：VOLTAGE 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：3.6 V
最小供电电压：1.6 V表面贴装：YES
端子面层：Matte Tin (Sn)端接类型：SOLDER
Base Number Matches：1

AH1903-FA-7 数据手册

 浏览型号AH1903-FA-7的Datasheet PDF文件第2页浏览型号AH1903-FA-7的Datasheet PDF文件第3页浏览型号AH1903-FA-7的Datasheet PDF文件第4页浏览型号AH1903-FA-7的Datasheet PDF文件第5页浏览型号AH1903-FA-7的Datasheet PDF文件第6页浏览型号AH1903-FA-7的Datasheet PDF文件第7页 
AH1903  
HIGH SENSITIVITY MICROPOWER  
UNIPOLAR/OMNIPOLAR SELECTABLE HALL-EFFECT SWITCH  
Description  
Pin Assignments  
The AH1903 is a high sensitivity micropower Omnipolar or Unipolar  
selectable Hall effect switch IC with internal pull up and pull down  
capability. Designed for battery powered consumer equipment such  
as cellular phones and portable PCs to office equipment, home  
appliances and industrial applications, the average supply current is  
only 4.3µA at 1.8V. To support portable equipment the AH1903 can  
operate over the supply range of 1.6V to 3.6V and uses a hibernating  
clocking system to minimize the power consumption. To minimize  
PCB space the AH1903 is available in  
X1-DFN1216-4 package.  
a small low profile  
The user can change the Hall switch function between Unipolar and  
Omnipolar operation via the Select (SEL) pin. If the SEL pin is open  
circuit or pulled high the AH1903 operates in Unipolar switch mode  
detecting magnetic field direction with a South pole to the part mark  
side of the package. If the SEL pin is pulled low the AH1903 functions  
as a Omnipolar switch detecting either a North or South pole. The  
output is activated with a pole of sufficient magnetic field strength.  
When the magnetic flux density (B) perpendicular to the package is  
larger than operate point (Bop), the output will be turned on (pulled  
low) and held until B is lower than release point (Brp).  
Applications  
•
•
•
•
•
•
•
Open and Close Detect for flip/slide Cellular Phones  
Smart Cover or Dock Detect for Cellular Phones and Tablet PCs  
Cover or Display Switch in Portable PCs (eg Ultrabook)  
Digital Still, Video Cameras and Handheld Gaming Consoles  
Door, Lids and Tray Position Switches  
Level, Proximity and Position Switches  
Contact-Less Switches in Home Appliances and Industrial  
Applications  
Features  
•
Unipolar or Omnipolar Operation  
ƒ
Operation can be changed by a logic source or fixed via  
PCB design with no additional components  
Typical Application Circuit  
•
•
•
•
Supply Voltage of 1.6V to 3.6V  
High Sensitivity  
Micropower Operation  
Chopper Stabilized Design Provides  
ƒ
ƒ
ƒ
Superior Temperature Stability  
Minimal Switch Point Drift  
Enhanced Immunity to Physical Stress  
•
•
•
•
No External Pull-up Resistors Required  
Good RF Noise Immunity  
-40°C to +85°C Operating Temperature  
High ESD capability of 8kV (Human Body Model) on VDD, GND  
and OUTPUT Pins  
•
•
•
Small Low Profile X1-DFN1216-4 Package  
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.  
4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical and should be placed as close to the  
supply pin as possible.  
1 of 11  
www.diodes.com  
June 2014  
© Diodes Incorporated  
AH1903  
Document number: DS36568 Rev. 3 - 2  
1234567...11

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