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| 型号： | ATS632LSA |
| 元件分类： | 速度传感器和接近开关 |
| 英文描述： | PROXIMITY SENSOR-HALL EFFECT, 0.3-2.5mm, 0.20-0.40V, ROUND, THROUGH HOLE MOUNT |
| 文件页数： | 11/12页 |
| 文件大小： | 124K |
| 代理商： | ATS632LSA |
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ATS632LSA
HALL-EFFECT
GEAR-TOOTH SENSOR
8
APPLICATIONS INFORMATION — Continued
Measurement of the effect of changing air gap after power
on:
1.
Set the air gap to the desired value (nominal, for
example). Rotate the target at the desired speed.
Apply power to the module. Wait for 16 output pulses
to occur. Monitor output for correct switching and
measure accuracy.
2.
Change the air gap by
± 0.25 mm. Do not re-power
module. Wait for 64 output pulses to occur. Monitor
the output for correct switching and measure accu-
racy.
Device Switch Points. The device switch points are
referenced to the peak-to-peak values of the gain-ad-
justed signal. The comparator thresholds have been
chosen to provide timing accuracy, as well as limited
immunity from mis-detection caused by short valley
conditions or by gear run-out.
Gear Design Criteria.* The system was designed to
work correctly with minimum valley depths of 5 mm and
minimum valley widths of 13 mm. As the valley depth
decreases, the valley field rises above the open-circuit
value of the magnetic circuit when the sensor is at mini-
mum air gap. The same is true when the valley width
decreases. In both cases, the metal mass from the valley
bottom or side walls provides an interference at minimum
air gap and will provide a signal that may be interpreted
as a tooth upon power on. It is important to note that this
anomaly will normally only affect the power-on state of the
device and the self-calibration circuitry will null this
baseline shift when the device is in running mode.
* In application, the terms “gear” and “target” are often
interchanged. However, “gear” is preferred when motion
is transferred.
Signal-Timing Accuracy. Timing accuracy is improved
with larger gear diameters. The magnetic field profile has
a defined spread that narrows in degrees as the target
diameter increases. The slope of this magnetic profile
also changes with air gap. For highest accuracy, targets
greater than 100 mm diameter should be used.
Operation with Fine-Pitch Gears. The self-calibration
routines allow the detection of fine-pitch gears once the
target is rotating. The major issue in these applications is
the impact of gear run-out on the baseline of the magnetic
field. Excessive run-out may result in tooth edges not
being detected.
Signal Duty Cycle. For regular tooth geometries, precise
duty cycle is maintained over the operating air gap and
temperature range due to the good symmetry of the
magnetic switch points of the device.
Output. The output of the sensor is a short-circuit-
protected open-collector stage capable of sinking 20 mA.
An external pull-up (resistor) to a supply voltage of not
more than 24 V must be supplied.
Output Polarity. The switching of the output is indepen-
dent of the direction of gear rotation.
Power Supply Protection. The device contains an on-
chip regulator and can operate over a wide supply voltage
range (4.5 V to 24 V). For devices that need to operate
from an unregulated power supply, transient protection
must be added externally. For applications being run off a
regulated line, EMI/RFI protection is still required. Incor-
rect protection can result in unexplained pulses on the
output line, providing inaccurate sensing information to
the user.
continued next page…
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATS632LSC | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:ZERO-SPEED, SELF-CALIBRATING, NON-ORIENTED, HALL-EFFECT GEAR-TOOTH SENSOR |
| ATS635LSB-FP | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:否 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| ATS635LSE | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Programmable Back Biased Hall-Effect Switch with TPOS Functionality |
| ATS635LSETN | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:否 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| ATS635LSETN-T | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
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