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| 型号： | AS5304A-ATST |
| 厂商： | ams |
| 文件页数： | 7/15页 |
| 文件大小： | 0K |
| 描述： | IC ENCODER LIN SGL CHIP 20-TSSOP |
| 应用说明： | AS5000 Series Magnet Selection Guide AS5000 Series Magnets for Extended Vertical Range |
| 标准包装： | 4,500 |
| 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： | 带卷 (TR) |
AS5304/AS5306 Integrated Hall IC for linear and off-axis rotary motion detection
7
Incremental Quadrature AB Output
The digital output is compatible to optical incremental
S
N
S
N
S
encoder outputs. Direction of rotation is encoded into
two signals A and B that are phase-shifted by 90o.
Depending on the direction of rotation, A leads B
(CW) or B leads A (CCW).
7.1.1
Index Pulse
A
40
1
2
40
1
2
A single index pulse is generated once for every pole
pair. One pole pair is interpolated to 40 quadrature
pulses (160 steps), so one index pulse is generated
B
40
1
2
40
1
2
The Index output is switched to Index = high, when a
magnet is placed over the Hall array as shown in
placed over the left side of the IC (top view, pin#1 at
bottom left) and the south pole is placed over the
right side of the IC.
The index output will switch back to Index = low,
when the magnet is moved by one LSB from position
X=0 to X=X1, as shown in Figure 7, bottom graph.
One LSB is 25μm for AS5304 and 15μm for AS5306.
Index
Detail:
A
B
Index
Note: Since the small step size of 1 LSB is hardly
recognizable in a correctly scaled graph it is shown as an
Step #
157 158 159
0
1
2
3
4
5
Figure 6:
Quadrature A / B and Index output
7.1.2
Magnetic Field Warning Indicator
The AS5304 can also provide a low magnetic field warning to indicate a missing magnet or when the end of the magnetic strip
has been reached. This condition is indicated by using a combination of A, B and Index, that does not occur in normal
operation:
A low magnetic field is indicated with:
Index = high
A=B=low
7.1.3
Vertical Distance between Magnet and IC
The recommended vertical distance between magnet and IC depends on the strength of the magnet and the length of the
magnetic pole.
Typically, the vertical distance between magnet and chip surface should not exceed ? of the pole length.
That means for AS5304, having a pole length of 2.0mm, the maximum vertical gap should be 1.0mm,
For the AS5306, having a pole length of 1.2mm, the maximum vertical gap should be 0.6mm
These figures refer to the chip surface. Given a typical distance of 0.2mm between chip surface and IC package surface,
the recommended vertical distances between magnet and IC surface are therefore:
AS 5304: ≤ 0.8mm
AS 5306: ≤ 0.4mm
Revision 1.9
www.ams.com
Page 6 of 14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5304AATSU | 制造商:AMS 功能描述:IC LINEAR ENCODER 12.3BIT 20-TSSOP 制造商:AMS 功能描述:IC, LINEAR ENCODER, 12.3BIT, 20-TSSOP; IC Function:Encoder IC; Brief Features:Linear Movement Measurement, Circular Off-Axis Movement Measurement; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Operating Temperature Min:-40C ;RoHS Compliant: Yes |
| AS5304A-ATSU | 功能描述:板机接口霍耳效应/磁性传感器 RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23 |
| AS5304-AB-2.0 | 制造商:ams 功能描述:ADAPTER BOARD FOR AS5304-2.0 |
| AS5304B | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Integrated Hall ICs for Linear and Off-Axis Rotary Motion Detection |
| AS5304B-ATSM | 功能描述:IC ENCODER 20TSSOP 制造商:ams 系列:- 零件状态:有效 编码器类型:磁性 输出类型:正交（增量） 每转脉冲数:1280 电压 - 电源:4.5 ~ 5.5 V 致动器类型:外磁铁，不含 棘爪:无 内置开关:无 安装类型:表面贴装 朝向:- 端子类型:SMD（SMT）接片 旋转寿命（最少次数）:- 标准包装:500 |
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