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參數資料
| 型號： | A3421EKA |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | HALL-EFFECT, DIRECTION-DETECTION SENSORS |
| 中文描述： | 霍爾效應，方向檢測傳感器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 160K |
| 代理商： | A3421EKA |
The A3421xKA and A3422xKA Hall-effect, direction-detection
sensors are a new generation of special-function integrated sensors that
are capable of sensing the direction of rotation of a ring magnet. These
transducers provide separate digital outputs that provide information on
magnet rotation speed, direction, and magnet pole count. These devices
eliminate the major manufacturing hurdles encountered in fine-pitch
direction-detection applications, namely maintaining accurate mechani-
cal location between the two active Hall elements. Here, the two Hall
elements are photolithographically aligned to better than 1
m, as
contrasted with 100
m or worse mechanical location tolerance when
manufactured discretely. These highly sensitive, temperature-stable,
magnetic transducers are ideal for use in digital-encoder systems in the
harsh environments of automotive or industrial applications. The
A3421xKA is a high-hysteresis device designed for low-resolution
pulse counting while the A3422xKA is a high-sensitivity device
optimized for use with high-density magnets.
The A3421xKA and A3422xKA monolithic integrated circuits
contain two independent Hall-effect latches whose digital outputs are
internally coupled to CMOS logic circuitry that decodes signal speed
and direction. Extremely low-drift BiCMOS circuitry is used for the
amplifiers to ensure symmetry between the two latches so that signal
quadrature can be maintained. An on-chip voltage regulator allows the
use of these devices from a 4.5 V to 18 V supply. Both devices have
standard open-collector outputs; the logic operation of both devices is
the same.
Two operating temperature ranges are provided; suffix ‘E–’ is for
the automotive and industrial temperature range of -40
°C to +85°C,
suffix ‘L–’ is for the automotive and military temperature range of
-40
°C to +150°C. The 5-pin ‘KA’ SIP package provides a cost-com-
petitive solution to linear magnetic sensing in harsh environments.
FEATURES
I Internal Direction-Decoding Circuitry
I Two Matched Hall Latches On A Single Substrate
I Superior Temperature Stability
I 4.5 V to 18 V Operation
Electrically Defined Power-On State
Under-Voltage Lockout
HALL-EFFECT,
DIRECTION-DETECTION SENSORS
Always order by complete part number, e.g., A3421EKA .
X
V
CC
1
4
3
2
5
Dwg. PH-015
SUPPLY
DIRECTION
GROUND
E1
OUTPUT
SPEED
LOGIC
X
E1
E2
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC . . . . . . . . . . . . . 18 V
Magnetic Flux Density, B . . . .
Unlimited
Output OFF Voltage, VOUT . . . . . . . . VCC
Output Sink Current, IOUT . . . . . . . 30 mA
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . . . . . . . 500 mW
Operating Temperature Range, TA
Suffix ‘EKA’ . . . . . . . -40C to +85C
Suffix ‘LKA’ . . . . . . -40C to +150C
Storage Temperature Range,
TS . . . . . . . . . . . . . . . -65C to +170C
3421 AND
3422
PRELIMINARY INFORMATION
(subject to change without notice)
September 6, 2000
Data
Sheet
27650.1
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| A3FSDBXAU01 | GENERAL PURPOSE AUDIO CONNECTOR |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| A3421LKA | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:HALL-EFFECT, DIRECTION-DETECTION SENSORS |
| A3421XKA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HALL-EFFECT. DIRECTION-DETECTION SENSORS |
| A3422EKA | 功能描述:IC SENSOR DIRECT/DETECT 5-SIP RoHS:否 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A3422EKA-T | 功能描述:IC SENSOR DIRECT/DETECT 5-SIP RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A3422EKA-T | 制造商:Allegro MicroSystems 功能描述:Driver IC Package/Case:5-SIP |
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