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A3230ELHLT-T

更新时间： 2024-02-05 10:48:34
品牌 Logo 应用领域
急速微 - ALLEGRO 开关传感器换能器磁场传感器输出元件
页数 文件大小 规格书
12页 476K
描述
Chopper-Stabilized Hall-Effect Bipolar Switch

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A3230ELHLT-T 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SIP
针数：3Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.82
Is Samacsys：N其他特性：SHORT CIRCUIT PROTECTION, REVERSE BATTERY PROTECTION
主体宽度：1.52 mm主体高度：5.26 mm
主体长度或直径：4.105 mm滞后：1.5 mT
JESD-609代码：e3最大磁场范围：2.5 mT
最小磁场范围：-2.5 mT安装特点：THROUGH HOLE MOUNT
最大工作电流：3.5 mA最高工作温度：150 °C
最低工作温度：-40 °C最大输出电流：60 mA
输出范围：30-60mA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：24 V最小供电电压：3.6 V
表面贴装：NO端子面层：Matte Tin (Sn)
端接类型：SOLDERBase Number Matches：1

A3230ELHLT-T 数据手册

 浏览型号A3230ELHLT-T的Datasheet PDF文件第4页浏览型号A3230ELHLT-T的Datasheet PDF文件第5页浏览型号A3230ELHLT-T的Datasheet PDF文件第6页浏览型号A3230ELHLT-T的Datasheet PDF文件第8页浏览型号A3230ELHLT-T的Datasheet PDF文件第9页浏览型号A3230ELHLT-T的Datasheet PDF文件第10页 
A3230  
Chopper-Stabilized Hall Effect Bipolar Switch  
Functional Description  
field of the opposite polarity and of sufficient strength causes  
Operation  
it to switch. The hysteresis of latch mode behavior is shown in  
panel A of figure 1.  
The output of these devices switches low (turns on) when a  
magnetic field perpendicular to the Hall sensor exceeds the  
operate point threshold, BOP. After turn-on, the output voltage  
is VOUT(SAT). The output transistor is capable of sinking current  
up to the short circuit current limit, IOM, which is a minimum of  
30 mA. When the magnetic field is reduced below the release  
point, BRP, the device output goes high (turns off). The differ-  
ence in the magnetic operate and release points is the hysteresis,  
In contrast to latching, when a device exhibits unipolar switch-  
ing, it only responds to a south magnetic field. The field must  
be of sufficient strength, > BOP, for the device to operate. When  
the field is reduced beyond the BRP level, the device switches  
back to the high state, as shown in panel B of figure 1. Devices  
B
HYS, of the device. This built-in hysteresis allows clean switch-  
ing of the output even in the presence of external mechanical  
vibration and electrical noise.  
VS  
There are three switching modes for bipolar devices, referred to  
as latch, unipolar switch, and negative switch. Mode is deter-  
mined by the switchpoint characteristics of the individual device.  
Note that, as shown in figure 1, these switchpoints can lie in  
either north or south polarity ranges. The values of the magnetic  
parameters for the A3230 are specified in the Magnetic Charac-  
teristics table, on page 3.  
VCC  
RLOAD  
Sensor Output  
C
BYP  
A3230  
VOUT  
0.1 µF  
GND  
Bipolar devices typically behave as latches (although these  
devices are not guaranteed to do so). In this mode, magnetic  
fields of opposite polarity and equivalent strengths are needed  
to switch the output. When the magnetic fields are removed  
(B → 0) the device remains in the same state until a magnetic  
(D)  
(A)  
(B)  
(C)  
V+  
V+  
V+  
VCC  
VCC  
VCC  
VOUT(SAT)  
VOUT(SAT)  
B+  
VOUT(SAT)  
0
0
0
B–  
B+  
B– 0  
B–  
0
B+  
0
BHYS  
BHYS  
BHYS  
Figure 1. Bipolar Device Output Switching Modes. These behaviors can be exhibited when using a circuit such as that shown in panel D. Panel A  
displays the hysteresis when a device exhibits latch mode (note that the BHYS band incorporates B= 0), panel B shows unipolar switch behavior (the  
BHYS band is more positive than B = 0), and panel C shows negative switch behavior (the BHYS band is more negative than B = 0). Bipolar devices,  
such as the A3230, can operate in any of the three modes.  
Allegro MicroSystems, Inc.  
7
115 Northeast Cutoff, Box 15036  
A3230-DS  
Worcester, Massachusetts 01615-0036 (508) 853-5000  
www.allegromicro.com  
1...45678910...12

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