AS5245

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

5

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..................................................................................................................................................................................

8.2同步串行接口（ SSI ） ....................................................................................................................................................

8.2.1

8.2.2

8.2.3

8.2.4

8.2.5

8.2.6

串行数据Contents..................................................................................................................................................................

Z轴范围指示（按钮功能，红/黄/绿色指示灯） ................................. ..........................................

增量模式......................................................................................................................................................................

同步Mode.................................................................................................................................................................................

正弦/余弦模式.....................................................................................................................................................................

菊花链模式.....................................................................................................................................................................

11

12

12

13

13

14

14

16

16

16

17

18

8.3脉冲宽度调制（ PWM）的Output..............................................................................................................................................

8.4模拟Output.....................................................................................................................................................................................

8.3.1改变PWM Frequency.................................................................................................................................................. 18

9应用信息...........................................................................................................................................................

9.1编程的AS5245 ..................................................................................................................................................................

9.1.1

9.1.2

9.1.3

9.1.4

9.1.5

9.1.6

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...............................................................................................................................................

19

19

19

20

20

21

21

21

22

23

24

25

9.2对齐Mode..................................................................................................................................................................................

9.3 3.3V / 5V工作电压............................................................................................................................................................................

9.4选择适当的Magnet..............................................................................................................................................................

9.5故障诊断.............................................................................................................................................................................

9.5.1磁场强度诊断............................................................................................................................................ 25

9.5.2电源故障检测................................................................................................................................................ 25

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......................................................................................................................................................

25

25

27

27

28

28

28

28

29

9.7 AS5245的差异来AS5045..........................................................................................................................................................

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