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| 型号： | AS5215OM-HMFP-500 |
| 厂商： | ams |
| 文件页数： | 13/27页 |
| 文件大小： | 0K |
| 描述： | IC ENCODER ROTARY 32-QFN |
| 应用说明： | AS5000 Series Magnet Selection Guide AS5000 Series Magnets for Extended Vertical Range |
| 特色产品： | AS5215 - Automotive Rotary Encoder IC |
| 标准包装： | 1 |
| 传感范围： | 20mT ~ 80mT |
| 类型： | 线性，旋转编码器 - 可编程 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 28mA |
| 输出类型： | 模拟 |
| 特点： | 可编程 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 32-VQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN（7x7） |
| 包装： | 标准包装 |
| 其它名称： | AS5215-HQFT-500DKR AS5215-HQFT-500DKR-ND AS5215-HQFT-OM-500DKR AS5215-HQFT-OM-500DKR-ND AS5215OM-HMFP-500DKR |
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AS5215
Datasheet - D e t a i l e d D e s c r i p t i o n
7.1.3
Axial Distance (Airgap)
Figure 7. Sinusoidal Magnetic Field Generated by the Rotating Magnet
B
vertical
field
0
360o
The recommended magnetic field, measured at the chip surface on a radius equal to the Hall sensor array radius (typ 1mm) should be within a
certain range. This range lies between 45 and 75mT or between 20 and 80mT, depending on the encoder product.
Linear position sensors are more sensitive as they use weaker magnets. The allowed magnetic range lies typically between 5 and 60mT.
7.1.4
Angle Error vs. Radial and Axial Misalignment
The angle error is the deviation of the actual angle vs. the angle measured by the encoder. There are several factors in the chip itself that
contribute to this error, mainly offset and gain matching of the amplifiers in the analog signal path. On the other hand, there is the nonlinearity of
the signals coming from the Hall sensors, caused by misalignment of the magnet and imperfections in the magnetic material.
Ideally, the Hall sensor signals should be sinusoidal, with equal peak amplitude of each signal. This can be maintained, as long as all Hall
elements are within the linear range of the magnetic field Bz (see Figure 5) .
7.1.5
Mounting the Magnet
Generally, for on-axis rotation angle measurement, the magnet must be mounted centered over the IC package. However, the material of the
shaft into which the magnet is mounted, is also of big importance.
Magnetic materials in the vicinity of the magnet will distort or weaken the magnetic field being picked up by the Hall elements and cause
additional errors in the angular output of the sensor.
Figure 8. Magnetic Field Lines in Air
Figure 8 shows the ideal case with the magnet in air. No magnetic materials are anywhere nearby.
www.austriamicrosystems.com/AS5215
Revision 1.11
12 - 26
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相关代理商/技术参数 |
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| AS5215-QF_EK_AB | 功能描述:AS5215 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:串行 灵敏度:- 电压 - 电源:5V 嵌入式:否 所含物品:板 使用的 IC/零件:AS5215 标准包装:1 |
| AS5215-QF_EK_DB | 功能描述:AS5215 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:USB 灵敏度:-161dB 电压 - 电源:5V USB 或 9V 嵌入式:是，MCU，8 位 所含物品:板，线缆 使用的 IC/零件:AS5215 标准包装:1 |
| AS5215-QF_EK_PB | 功能描述:AS5215 - ZIF Socket 制造商:ams 系列:- 零件状态:有效 模块/板类型:ZIF 插口 配套使用产品/相关产品:AS5215 标准包装:1 |
| AS-521R0DLF | 制造商:IRCTT 制造商全称:IRC - a TT electronics Company. 功能描述:Semi-Precision Power Wirewound Resistor |
| AS521R0FLF | 制造商:TT Electronics / IRC 功能描述:AS521R0FLF |
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