AS5145
数据表 - C O 4 N T E N t个s
目录
1概述..................................................................................................................................................................
2关键Features.............................................................................................................................................................................
3 Applications...............................................................................................................................................................................
4引脚分配.......................................................................................................................................................................
4.1引脚Descriptions....................................................................................................................................................................................
1
1
1
4
4
5绝对最大额定值......................................................................................................................................................
6电气Characteristics...........................................................................................................................................................
6.1磁输入Specification.................................................................................................................................................................
6.2系统规格..........................................................................................................................................................................
6
7
8
9
7时序特性............................................................................................................................................................
8详细Description................................................................................................................................................................
8.1 Mode_Index Pin..................................................................................................................................................................................
8.1.1
8.1.2
8.1.3
8.1.4
8.1.5
同步串行接口( SSI ) ...........................................................................................................................................
增量模式......................................................................................................................................................................
同步Mode.................................................................................................................................................................................
仙/余弦模式.......................................................................................................................................................................
菊花链模式.....................................................................................................................................................................
11
12
12
13
14
16
16
16
17
18
8.2脉冲宽度调制( PWM)的Output..............................................................................................................................................
8.3模拟Output.....................................................................................................................................................................................
8.2.1改变PWM Frequency.................................................................................................................................................. 18
9应用信息...........................................................................................................................................................
9.1编程的AS5145 ..................................................................................................................................................................
9.1.1
9.1.2
9.1.3
9.1.4
9.1.5
9.1.6
9.1.7
零位编程.......................................................................................................................................................
OTP存储器Assignment..........................................................................................................................................................
用户可选择的设置...........................................................................................................................................................
OTP默认Setting...................................................................................................................................................................
Redundancy...............................................................................................................................................................................
多余的编程选项...............................................................................................................................................
OTP注册进入和退出条件.....................................................................................................................................
19
19
19
20
20
21
21
22
22
23
24
24
9.2对齐Mode..................................................................................................................................................................................
9.3 3.3V / 5V工作电压............................................................................................................................................................................
9.4选择适当的磁铁....................................................................................................................................................................
磁铁的9.4.1物理布局............................................................................................................................................ 25
9.4.2磁铁Placement..................................................................................................................................................................... 26
9.5故障诊断.............................................................................................................................................................................
26
9.5.1磁场强度诊断............................................................................................................................................ 26
9.5.2电源故障检测................................................................................................................................................ 26
9.6角度输出误差.................................................................................................................................................................
9.6.1
9.6.2
9.6.3
9.6.4
9.6.5
9.6.6
9.6.7
准确性....................................................................................................................................................................................
过渡Noise.........................................................................................................................................................................
高速运行...............................................................................................................................................................
传播延迟...................................................................................................................................................................
内部时序误差..........................................................................................................................................................
温度..............................................................................................................................................................................
在温度精度......................................................................................................................................................
26
26
28
28
28
29
29
29
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