AS5161

Datasheet - Contents

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Revision 1.1

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Contents

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

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

3 Benefits..................................................................................................................................................................................... 1

4 Applications............................................................................................................................................................................... 1

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

5.1 Pin Descriptions.................................................................................................................................................................................... 4

6 Absolute Maximum Ratings ......................................................................................................................................................

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7 Electrical Characteristics...........................................................................................................................................................

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7.1 Operating Conditions............................................................................................................................................................................ 6

7.2 Magnetic Input Specification................................................................................................................................................................. 6

7.3 Electrical System Specifications........................................................................................................................................................... 7

7.4 Timing Characteristics .......................................................................................................................................................................... 8

7.5 Power Management - Supply Monitor .................................................................................................................................................. 8

8 Detailed Description.................................................................................................................................................................. 9

8.1 Operation.............................................................................................................................................................................................. 9

8.1.1 VDD Voltage Monitor ................................................................................................................................................................... 9

8.2 PWM Output....................................................................................................................................................................................... 10

8.2.1 Programming Parameters.......................................................................................................................................................... 10

8.2.2 Application Specific Angular Range Programming .................................................................................................................... 11

8.2.3 Application Specific Programming of the Break Point ............................................................................................................... 11

8.2.4 Multiple Slope Output ................................................................................................................................................................ 12

8.2.5 Linearization of the Output......................................................................................................................................................... 13

8.2.6 Resolution of Parameters .......................................................................................................................................................... 13

8.3 PWM Output Driver Parameters......................................................................................................................................................... 15

8.3.1 Noise Suppressor ...................................................................................................................................................................... 15

8.3.2 Hysteresis Function ................................................................................................................................................................... 15

9 Application Information ...........................................................................................................................................................

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9.1 Recommended Application Schematic............................................................................................................................................... 16

9.2 Programming the AS5161 .................................................................................................................................................................. 17

9.2.1 UART Interface for Programming .............................................................................................................................................. 17

9.2.2 Frame Organization ................................................................................................................................................................... 17

9.2.3 WRITE (Command Description) ................................................................................................................................................ 19

9.2.4 READ (Command Description).................................................................................................................................................. 20

9.2.5 Baud-rate Automatic Detection.................................................................................................................................................. 20

9.2.6 Baud-rate Manual Setting (optional) .......................................................................................................................................... 20

9.3 OTP Programming Data..................................................................................................................................................................... 22

9.4 READ / WRITE Register Map............................................................................................................................................................. 26

9.5 READ Only Register Map................................................................................................................................................................... 27

9.6 Special Registers................................................................................................................................................................................ 29

9.7 Programming Procedure .................................................................................................................................................................... 30

10 Package Drawings and Markings .........................................................................................................................................

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11 Ordering Information .............................................................................................................................................................

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