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參數(shù)資料
| 型號： | ATS642LSH |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Two-Wire True Zero Speed Miniature Differential Peak-Detecting Gear Tooth Sensor with Continuous Calibration |
| 中文描述： | 兩線真零速微型差分峰值檢測與校正連續(xù)齒輪齒傳感器 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 430K |
| 代理商： | ATS642LSH |
11
ATS642LSH-DS
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
True Zero Speed Miniature Differential Peak-Detecting Gear Tooth Sensor
ATS642LSH
Automatic Gain Control (AGC)
This feature allows the device to operate with an optimal internal
electrical signal, regardless of the air gap (within the AG speci-
fi
cation). During calibration, the device determines the peak-to-
peak amplitude of the signal generated by the target. The gain of
the sensor is then automatically adjusted. Figure 5 illustrates the
effect of this feature.
Automatic Offset Adjust (AOA)
The AOA is patented circuitry that automatically compensates
for the effects of chip, magnet, and installation offsets. (For
capability, see Dynamic Offset Cancellation, in the Operat-
ing Characteristics table.) This circuitry is continuously active,
including both during calibration mode and running mode, com-
pensating for any offset drift. Continuous operation also allows it
to compensate for offsets induced by temperature variations over
time.
Digital Peak Detection
A digital DAC tracks the internal analog voltage signal V
PROC
,
and is used for holding the peak value of the internal analog
signal. In the example shown in
fi
gure 6, the DAC would
fi
rst
track up with the signal and hold the upper peak’s value. When
V
PROC
drops below this peak value by B
OP
, the device hyster-
esis, the output would switch and the DAC would begin tracking
the signal downward toward the negative V
PROC
peak. Once the
DAC acquires the negative peak, the output will again switch
states when V
PROC
is greater than the peak by the value B
RP
. At
this point, the DAC tracks up again and the cycle repeats. The
digital tracking of the differential analog signal allows the sensor
to achieve true zero-speed operation.
Figure 5. Automatic Gain Control (AGC). The AGC function corrects for
variances in the air gap. Differences in the air gap affect the magnetic
gradient, but AGC prevents that from affecting device performance, a
shown in the lowest panel.
Mechanical Profile
AG
Small
AG
Large
AG
Small
AG
Large
Internal Differential
Analog Signal
Response, with AGC
Internal Differential
Analog Signal
Response, without AGC
Ferrous Target
V+
V+
Figure 6: Peak Detecting Switchpoint Detail
Device
Output Current
B
RP
Internal
Differential
Analog Signal
V+
I+
B
OP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATS642LSHTN-I1-T | Two-Wire True Zero Speed Miniature Differential Peak-Detecting Gear Tooth Sensor with Continuous Calibration |
| ATS642LSHTN-I2-T | Two-Wire True Zero Speed Miniature Differential Peak-Detecting Gear Tooth Sensor with Continuous Calibration |
| ATS643LSH-I2 | Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update |
| ATS643LSH | Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update |
| ATS643LSH-I1 | Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATS642LSH_09 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:The ATS642LSH is an optimized Hall effect sensing integrated circuit and magnet combination that provides a user-friendly solution for true zero-speed digital gear-tooth sensing in two-wire applications. |
| ATS642LSHTN-I1-T | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 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(shù)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(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| ATS642LSHTN-I1-T | 制造商:Allegro MicroSystems 功能描述:Hall Effect IC |
| ATS642LSHTN-I2-T | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 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(shù)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(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| ATS642LSHTN-I2-T | 制造商:Allegro MicroSystems 功能描述:Hall Effect IC |
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