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| 型号： | AS5311 DB |
| 厂商： | ams |
| 文件页数： | 20/29页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AS5311 |
| 标准包装： | 1 |
| 传感器类型： | 磁性，线性位置 |
| 接口： | USB/串行 |
| 电源电压： | 3.3V，5V |
| 嵌入式： | 是，MCU，8 位 |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS5311 |
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AS5311
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
8.3 Mounting the Magnet
8.3.1
Vertical Distance
As a rule of thumb, the gap between chip and magnet should be ? of the pole length, that is Z=0.5mm for the 1.0mm pole length of the AS5311
magnets. However, the gap also depends on the strength of the magnet. Typical gaps for AS5311 magnets range from 0.3 to 0.6mm (see
Electrical System Specifications on page 8) .
The AS5311 automatically adjusts for fluctuating magnet strength by using an automatic gain control (AGC). The vertical distance should be set
such that the AS5311 is in the “green” range. See Z-axis Range Indication (“Red/Yellow/Green” Indicator) on page 14 for more details.
8.3.2
Alignment of Multi-pole Magnet and IC
When aligning the magnet strip or ring to the AS5311, the centerline of the magnet strip should be placed exactly over the Hall array. A lateral
displacement in Y-direction (across the width of the magnet) is acceptable as long as it is within the active area of the magnet. See Figure 14 for
the position of the Hall array relative to Pin #1.
Note: The active area in width is the area in which the magnetic field strength across the width of the magnet is constant with reference to the
centerline of the magnet (see Figure 13) .
8.3.3
Lateral Stroke of Multi-pole Strip Magnets
The lateral movement range (stroke) is limited by the area at which all Hall sensors of the IC are covered by the magnet in either direction. The
Hall array on the AS5311 has a length of 2.0mm, hence the total stroke is,
maximum lateral Stroke = Length of active area – length of Hall array
(EQ 2)
Note: Active area in length is defined as the area containing poles with the specified 1.0mm pole length. Shorter poles at either edge of the
magnet must be excluded from the active area (see Figure 13) .
Figure 13. Active Area of Strip Magnet
Active Area
Active area ( length )
B
N
S
N
S
N
S
N
S
N
S
recommended
scanning path
2 mm
strip length
www.ams.com/AS5311
Revision 1.12
20 - 29
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相关代理商/技术参数 |
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| AS5311-TS_EK_AB | 功能描述:AS5311 - Magnetic, Linear Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，线性位置 感应范围:- 接口:串行 灵敏度:- 电压 - 电源:3 V ~ 5.5 V 嵌入式:否 所含物品:板 使用的 IC/零件:AS5311 标准包装:1 |
| AS5311-TS_EK_DB | 功能描述:AS5311 - Magnetic, Linear Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，线性位置 感应范围:- 接口:USB 灵敏度:- 电压 - 电源:3.3V，5V 嵌入式:是，MCU，8 位 所含物品:板 使用的 IC/零件:AS5311 标准包装:1 |
| AS53160FLF | 制造商:TT Electronics / IRC 功能描述:AS53160FLF |
| AS53160HLF | 制造商:TT Electronics / IRC 功能描述:AS53160HLF |
| AS53160JLF | 制造商:TT Electronics / IRC 功能描述:AS53160JLF |
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