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参数资料
| 型号： | AS5304B-ATSU |
| 厂商： | ams |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | IC ENCODER LINEAR 20-TSSOP |
| 应用说明： | AS5000 Series Magnet Selection Guide AS5000 Series Magnets for Extended Vertical Range |
| 标准包装： | 74 |
| 传感范围： | 5mT ~ 60mT |
| 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： | 35mA |
| 电流 - 输出（最大）： | 14mA |
| 输出类型： | 正交，带刻度角（增量） |
| 特点： | 高速度 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 804 (CN2011-ZH PDF) |
AS5304/AS5306 Integrated Hall IC for linear and off-axis rotary motion detection
8.1
Resolution and Maximum Rotating Speed
When using the AS5304/AS5306 in an off-axis rotary application, a multi-pole ring magnet must be used. Resolution, diameter
and maximum speed depend on the number of pole pairs on the ring.
8.1.1
Resolution
The angular resolution increases linearly with the number of pole pairs. One pole pair ha s a resolution (= interpolation factor) of
160 steps or 40 quadrature pulses.
Resolution [steps] = [interpolation factor] x [number of pole pairs]
Resolution [bit] = log (resolution[steps]) / log (2)
Example: multi-pole ring with 22 pole pairs
Resolution
= 160x22 = 3520 steps per revolution
= 40x22 = 880 quadrature pulses / revolution
= 11.78 bits per revolution = 0.1023° per step
8.1.2
Multi-pole Ring Diameter
The length of a pole pair across the median of the multi-pole ring must remain fixed at either 4mm (AS5304) or 2.4mm
(AS5306). Hence, with increasing pole pair count, the diameter increases linearly with the number of pole pairs on the magnet ic
ring.
Magnetic ring diameter = [pole length] * [number of pole pairs] / π
for AS5304: d = 4.0mm * number of pole pair s / π
for AS5306: d = 2.4mm * number of pole pair s / π
Example: same as above: multi-pole ring with 22 pole pairs for AS5304
Ring diameter =
4 * 22 / 3.14 = 28.01mm (this number represents the median di ameter of the ring, this is where the
For the AS5306, the same ring would have a diameter of: 2.4 * 22 / 3.14 = 16.8mm
8.1.3
Maximum Rotation Speed
The AS5304/AS5306 use a fast interpolation technique allowing an input frequency of 5kHz. This means, it can process
magnetic field changes in the order of 5000 pole pairs per second or 300 ,000 revolutions per minute. However, since a magnetic
ring consists of more than one pole pair, the above figure must be divided by the number of pole pairs to get the maximum
rotation speed:
Maximum rotation speed = 300,000 rpm / [number of pole pairs]
Example: same as above: multi-pole ring with 22 pole pairs:
Max. speed = 300,000 / 22 = 13,636 rpm (this is independent of the pole length)
8.1.4
Maximum Linear Travelling Speed
For linear motion sensing, a multi-pole strip using equally spaced north and south poles is used. The pole length is again fixed
at 2.0mm for the AS5304 and 1.2mm for the A S5306. As shown in 8.1.3 above, the sensors can process up to 5000 pole pairs
per second, so the maximum travelling speed is:
Maximum linear travelling speed = 5000 * [pole pair length]
Example: linear multi-pole strip:
Max. linear travelling speed = 4mm * 5000 1/sec = 20 ,000mm/sec = 20m/sec
Max. linear travelling speed = 2.4mm * 5000 1/sec = 12 ,000mm/sec = 12m/sec
for AS5304
for AS5306
Revision 1.9
www.ams.com
Page 10 of 14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5304-DK-1.0 | 功能描述:BOARD DEMO AS5304 RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| AS5304-DK-ST-1.0 | 制造商:ams 功能描述:Demo Board |
| AS5304-TS_EK_AB | 功能描述:AS5304A, AS5304B - Magnetic, Linear, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，线性，旋转位置 感应范围:- 接口:模拟 灵敏度:- 电压 - 电源:4.5 V ~ 5.5 V 嵌入式:- 所含物品:板 使用的 IC/零件:AS5304A，AS5304B 标准包装:1 |
| AS5304-TS_EK_DB | 功能描述:AS5304/B - Hall Effect Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:霍尔效应 感应范围:5mT 跳闸，60mT 释放 接口:- 灵敏度:- 电压 - 电源:9V 嵌入式:否 所含物品:2 个板，电池，夹具，磁条 使用的 IC/零件:AS5304/B 标准包装:1 |
| AS5305 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Integrated Hall IC for Linear and Off-Axis Rotary Motion Detection |
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