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AS5130

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

6.2 Magnetic Input Range .......................................................................................................................................................................... 8

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

9

7.1 Connecting the AS5130........................................................................................................................................................................ 9

7.1.1 Serial 3-Wire Connection (Default Setting).................................................................................................................................. 9

7.1.2 Serial 3-Wire Connection (OTP Programming Option).............................................................................................................. 11

7.1.3 1-Wire PWM Connection ........................................................................................................................................................... 11

7.1.4 Analog Output............................................................................................................................................................................ 12

7.1.5 Analog Sin/Cos Outputs with External Interpolator.................................................................................................................... 13

7.2 Serial Synchronous Interface (SSI) .................................................................................................................................................... 15

7.2.1 Commands of the SSI in Normal Mode ..................................................................................................................................... 15

7.2.2 Commands of the SSI in Extended Mode.................................................................................................................................. 16

7.3 OTP Programming.............................................................................................................................................................................. 17

7.4 Multi Turn Counter.............................................................................................................................................................................. 19

7.5 AS5130 Status Indicators................................................................................................................................................................... 19

7.5.1 Lock Status Bit........................................................................................................................................................................... 19

7.5.2 Magnetic Field Strength Indicators ............................................................................................................................................ 19

7.6 “Pushbutton” Feature.......................................................................................................................................................................... 20

7.7 High Speed Operation........................................................................................................................................................................ 21

7.7.1 Propagation Delay ..................................................................................................................................................................... 21

7.7.2 Sampling Rate ........................................................................................................................................................................... 21

7.7.3 Chip Internal Lowpass Filtering ................................................................................................................................................. 21

7.7.4 Digital Readout Rate.................................................................................................................................................................. 21

7.7.5 Total Propagation Delay of the AS5130 .................................................................................................................................... 21

7.8 Reduced Power Modes ...................................................................................................................................................................... 22

7.8.1 Low Power Mode ....................................................................................................................................................................... 22

7.8.2 Power Cycling Mode.................................................................................................................................................................. 23

7.8.3 Polling Mode .............................................................................................................................................................................. 24

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

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8.1 Application Example I: 3-Wire Sensor with Magnetic Field Strength Indication ................................................................................. 27

8.2 Application Example II: Low-Power Encoder...................................................................................................................................... 28

8.3 Application Example III: Polling Mode ................................................................................................................................................ 29