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A3422LKA-T PDF预览

A3422LKA-T

更新时间: 2024-01-20 03:19:41
品牌 Logo 应用领域
急速微 - ALLEGRO 传感器换能器磁场传感器信息通信管理
页数 文件大小 规格书
10页 539K
描述
HALL-EFFECT, DIRECTION-DETECTION SENSORS

A3422LKA-T 技术参数

生命周期:ActiveReach Compliance Code:compliant
风险等级:5.84Base Number Matches:1

A3422LKA-T 数据手册

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3422  
HALL-EFFECT,  
DIRECTION-DETECTION SENSORS  
The A3422xKA Hall-effect, direction-detection sensor is a new  
generation of special-function integrated sensors that is capable of sens-  
ing the direction of rotation of a ring magnet. This transducer provides  
separate digital outputs that provide information on magnet rotation  
speed, direction, and magnet pole count. This device eliminates the ma-  
jor manufacturing hurdles encountered in ne-pitch direction-detection  
applications, namely maintaining accurate mechanical location between  
the two active Hall elements. Here, the two Hall elements are photo-  
lithographically aligned to better than 1 μm, as contrasted with 100 μm  
or worse mechanical location tolerance when manufactured discretely.  
This highly sensitive, temperature-stable, magnetic transducer is ideal  
for use in digital-encoder systems in the harsh environments of auto-  
motive or industrial applications. The A3422xKA is a high-sensitivity  
device optimized for use with high-density magnets.  
E1  
X
E2  
X
LOGIC  
V
CC  
1
2
3
4
5
The A3422xKA monolithic integrated circuit contains two inde-  
pendent Hall-effect bipolar switches whose digital outputs are internally  
coupled to CMOS logic circuitry that decodes signal speed and direc-  
tion. Extremely low-drift BiCMOS circuitry is used for the ampliers  
to ensure symmetry between the two switches so that signal quadrature  
can be maintained. An on-chip voltage regulator allows the use of this  
device from a 4.5 V to 18 V supply. The outputs are standard open-col-  
lector outputs.  
Dwg PH-015  
Two operating temperature ranges are provided; sufx ‘E–’ is for  
the automotive and industrial temperature range of -40°C to +85°C, suf-  
x ‘L–’ is for the automotive and military temperature range of  
-40°C to +150°C. The 5-pin ‘KASIP package provides a cost-com-  
petitive solution to magnetic sensing in harsh environments.  
Pinning is shown viewed from branded side.  
FEATURES  
ABSOLUTE MAXIMUM RATINGS  
Internal Direction-Decoding Circuitry  
Two Matched Hall Bipolar Switches on a Single Substrate  
Superior Temperature Stability  
4.5 V to 18 V Operation  
Supply Voltage, VCC . . . . . . . . . . . . . . 18 V  
Magnetic Flux Density, B . . . . Unlimited  
Output OFF Voltage, VOUT . . . . . . . . . VCC  
Output Sink Current, IOUT . . . . . . . 30 mA  
Electrically Dened Power-On State  
Undervoltage Lockout  
Package Power Dissipation,  
PD . . . . . . . . . . . . . . . . . . . . . 500 mW  
Operating Temperature Range, TA  
Sufx ‘E–’ . . . . . . . . . -40°C to +85°C  
Sufx ‘L–’ . . . . . . . . -40°C to +150°C  
Storage Temperature Range,  
TS . . . . . . . . . . . . . . -65°C to +170°C  

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