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AS5055

Datasheet - Contents

Contents

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

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

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3 Applications...............................................................................................................................................................................

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

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4.1 Pin Descriptions.................................................................................................................................................................................... 3

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

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

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6.1 Operating Conditions............................................................................................................................................................................ 5

6.2 System Parameters .............................................................................................................................................................................. 5

6.3 DC/AC Characteristics.......................................................................................................................................................................... 6

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

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7.1 Operating Modes.................................................................................................................................................................................. 7

7.1.1 Power Supply Filter...................................................................................................................................................................... 7

7.1.2 Reading an Angle ........................................................................................................................................................................ 8

7.1.3 Low Power Mode ......................................................................................................................................................................... 8

7.1.4 Interrupt Chaining ........................................................................................................................................................................ 8

7.2 SPI Communication.............................................................................................................................................................................. 9

7.2.1 Command Package ..................................................................................................................................................................... 9

7.2.2 Read Package (Value Read from AS5055) ................................................................................................................................. 9

7.2.3 Write Data Package (Value Written to AS5055) ........................................................................................................................ 10

7.2.4 Register Block............................................................................................................................................................................ 10

7.2.5 SPI Interface Commands........................................................................................................................................................... 11

7.2.6 Error Monitoring.......................................................................................................................................................................... 14

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

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8.1 SPI Interface....................................................................................................................................................................................... 16

8.1.1 SPI Interface Signals (4-Wire Mode, Wire_mode = 1)............................................................................................................... 16

8.1.2 SPI Timing ................................................................................................................................................................................. 17

8.1.3 SPI Connection to the Host µC ................................................................................................................................................. 18

8.1.4 SPI Over Long Distances .......................................................................................................................................................... 20

8.2 Placement of the Magnet.................................................................................................................................................................... 21

9 Package Drawings and Markings ...........................................................................................................................................

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10 Ordering Information.............................................................................................................................................................

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