www.ams.com/AS5030

Revision 2.4

2 - 44

AS5030

Datasheet - Contents

Contents

1 General Description .................................................................................................................................................................. 1

2 Key Features............................................................................................................................................................................. 1

3 Applications............................................................................................................................................................................... 1

4 Pin Assignments ....................................................................................................................................................................... 4

4.1 Pin Descriptions.................................................................................................................................................................................... 4

5 Absolute Maximum Ratings ......................................................................................................................................................

5

6 Electrical Characteristics...........................................................................................................................................................

6

6.1 Operating Conditions............................................................................................................................................................................ 6

6.2 System Parameters.............................................................................................................................................................................. 6

6.3 Magnet Specifications .......................................................................................................................................................................... 7

6.4 Magnetic Field Alarm Limits ................................................................................................................................................................. 7

6.5 Hall Element Sensitivity Options........................................................................................................................................................... 7

6.6 Programming Parameters .................................................................................................................................................................... 8

6.7 DC Characteristics of Digital Inputs and Outputs ................................................................................................................................. 8

6.8 8-bit PWM Output................................................................................................................................................................................. 9

6.9 Serial 8-bit Output................................................................................................................................................................................. 9

6.10 General Data Transmission Timings ................................................................................................................................................ 10

7 Detailed Description................................................................................................................................................................

11

7.1 Connecting the AS5030...................................................................................................................................................................... 11

7.2 Serial 3-Wire R/W Connection............................................................................................................................................................ 11

7.3 Serial 3-Wire Read-only Connection .................................................................................................................................................. 13

7.4 Serial 2-Wire Connection (R/W Mode) ............................................................................................................................................... 14

7.5 Serial 2-Wire Continuous Readout..................................................................................................................................................... 15

7.6 Serial 2-Wire Differential SSI Connection........................................................................................................................................... 15

7.7

1-Wire PWM Connection ................................................................................................................................................................ 16

7.8 Analog Output..................................................................................................................................................................................... 18

7.9 Analog Sin/Cos Outputs with External Interpolator ............................................................................................................................ 19

7.10 3-Wire Daisy Chain Mode................................................................................................................................................................. 20

7.11 2-Wire Daisy Chain Mode................................................................................................................................................................. 21

8 Application Information ...........................................................................................................................................................

22

8.1 AS5030 Programming ........................................................................................................................................................................ 23

8.1.1 OTP Programming Options ....................................................................................................................................................... 23

8.1.2 Reduced Power Mode Programming Options ........................................................................................................................... 23

8.2 AS5030 Read / Write Commands ...................................................................................................................................................... 23

8.2.1 16-bit Read Command............................................................................................................................................................... 23

8.2.2 16-bit Write Command............................................................................................................................................................... 24

8.2.3 18-bit OTP Read Commands ................................................................................................................................................... 24

8.2.4 18-bit OTP Write Commands .................................................................................................................................................... 25

8.3 OTP Programming Connection .......................................................................................................................................................... 26

8.3.1 Programming in Daisy Chain Mode ........................................................................................................................................... 26

8.4 Programming Verification ................................................................................................................................................................... 27