A3290KUA-T

更新时间： 2024-02-17 00:56:46

品牌	Logo	应用领域
急速微 - ALLEGRO		锁存器传感器换能器磁场传感器输出元件
页数	文件大小	规格书
8页	245K
描述
Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications

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A3290KUA-T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	SIP3,.03,50
Reach Compliance Code：	compliant	风险等级：	1.68
Is Samacsys：	N	其他特性：	OPEN COLLECTOR OUTPUT
主体宽度：	1.52 mm	主体高度：	3.02 mm
主体长度或直径：	4.09 mm	滞后：	100 mT
JESD-609代码：	e3	最大磁场范围：	5 mT
最小磁场范围：	-5 mT	安装特点：	THROUGH HOLE MOUNT
端子数量：	3	最大工作电流：	8 mA
最高工作温度：	125 °C	最低工作温度：	-40 °C
输出电路类型：	SINGLE-ENDED	最大输出电流：	25 mA
输出范围：	500mV	输出类型：	DIGITAL VOLTAGE
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	SIP3,.03,50
封装形状/形式：	RECTANGULAR	电源：	4.2/24 V
传感器/换能器类型：	MAGNETIC FIELD SENSOR,HALL EFFECT	子类别：	Other Sensors/Transducers
最大供电电压：	24 V	最小供电电压：	4.2 V
表面贴装：	NO	端子面层：	Matte Tin (Sn)
端接类型：	SOLDER	Base Number Matches：	1

A3290KUA-T 数据手册

A3290 and

A3291

Chopper Stabilized, Precision Hall Effect Latches

for Consumer and Industrial Applications

Note that these devices latch; that is, after a south (+) polarity

magnetic field of sufficient strength impinging on the branded

face of the device turns on the device, the device remains on until

the magnetic field is reduced below the Release Point threshold,

clean switching of the output, even in the presence of external

mechanical vibration and electrical noise.

When the devices are powered on, if the ambient magnetic field

has an intensity that is between B_OPand B_RP, the initial output

state is indeterminate. The first time that the level of B either

rises through B_OP, or falls through B_RP, however, the correct

output state is obatined.

B_RP. At that transition, the device output goes high (turns off).

The difference in the magnetic operate and release points is the

hysteresis, B_HYS, of the device. This built-in hysteresis allows

Application Information

It is strongly recommended that an external bypass capacitor be

connected (in close proximity to the Hall sensor) between the

supply and ground of the device to reduce both external noise

and noise generated by the chopper-stabilization technique. This

configuration is shown in figure 4.

pate heat from the junction (die), through all paths to the ambient

air. Its primary component is the Effective Thermal Conductivity,

K, of the printed circuit board, including adjacent devices and

traces. Radiation from the die through the device case, R_θJC, is

relatively small component of R_θJA. Ambient air temperature,

T_A, and air motion are significant external factors, damped by

overmolding. Sample power dissipation results are given in the

Thermal Characteristics section. Additional thermal data is also

available on the Allegro website.

The simplest form of magnet that will operate these devices is a

ring magnet.Other methods of operation, such as linear magnets,

are possible.

The device must be operated below the maximum junction

temperature of the device, T_J(max). Under certain combinations of

peak conditions, reliable operation may require derating supplied

power or improving the heat dissipation properties of the applica-

tion. The Package Thermal Resistance, R_θJA, is a figure of merit

Extensive applications information for Hall-effect sensors is

available in: Hall-Effect IC Applications Guide, Application Note

27701 and Guidelines for Designing Subassemblies Using Hall-

summarizing the ability of the application and the device to dissi- Effect Devices, Application Note 27703.1

VOUT

VCC

A329x

0.1 uF

GND

Figure 4. Typical basic application circuit. A bypass capacitor is highly

recommended.

Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

1...3 4 567 8

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与A3290KUA-T相关器件

型号	品牌	描述	获取价格	数据表
A3291	ALLEGRO	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications	获取价格
A3291KLHLT-T	ALLEGRO	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications	获取价格
A3291KUA-T	ALLEGRO	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications	获取价格
A3295	ALLEGRO	Chopper Stabilized, Precision Hall Effect Switch	获取价格
A3295_16	ALLEGRO	Chopper Stabilized, Precision Hall Effect Switch for Consumer and Industrial Applications	获取价格
A3295KLHLT-T	ALLEGRO	Hall Effect Sensor, 0.5mT Min, 7.5mT Max, 30-60mA, Rectangular, Surface Mount, SOT-23W, 3	获取价格

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