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AS8530

Preliminary Data Sheet - C o n t e n t s

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 Detailed System and Block Specifications ............................................................................................................................................... 6

6.1.1 Low Dropout Regulator................................................................................................................................................................. 7

6.1.2 LIN Transceiver ............................................................................................................................................................................ 7

7 Detailed Description ................................................................................................................................................................. 12

7.1 Block Description.................................................................................................................................................................................... 12

7.1.1 Voltage Regulator (LDO) ............................................................................................................................................................ 12

7.1.2 Temperature Limiter ................................................................................................................................................................... 12

7.1.3 VSUP Undervoltage Reset ......................................................................................................................................................... 12

7.1.4 RESET........................................................................................................................................................................................ 12

7.1.6 Window Watchdog (WWD) ......................................................................................................................................................... 13

7.1.7 LIN Transceiver .......................................................................................................................................................................... 14

7.2 Operating Modes and States.................................................................................................................................................................. 14

7.2.1 Normal Mode .............................................................................................................................................................................. 14

7.2.2 Standby Mode............................................................................................................................................................................. 14

7.2.3 Sleep Mode................................................................................................................................................................................. 14

7.2.4 Temporary Shutdown Mode ....................................................................................................................................................... 14

7.2.5 Thermal Shutdown State ............................................................................................................................................................ 15

7.3 State Diagram......................................................................................................................................................................................... 16

8 Application Information............................................................................................................................................................ 17

8.1 Initialization............................................................................................................................................................................................. 17

8.2 Wake-Up................................................................................................................................................................................................. 18

8.3 Over-Temperature Shutdown ................................................................................................................................................................. 18

8.4 LIN BUS Transceiver.............................................................................................................................................................................. 18

8.4.1 Transmit Mode............................................................................................................................................................................ 18

8.4.2 Receive Mode............................................................................................................................................................................. 18

8.5 RX and TX Interface............................................................................................................................................................................... 19

8.5.1 Input TX ...................................................................................................................................................................................... 19

8.5.2 Output RX................................................................................................................................................................................... 19

8.6 MODE Input EN...................................................................................................................................................................................... 20

8.7 Serial Port Interface................................................................................................................................................................................ 21

8.7.1 Device Configuration using 2-Wire Serial Port ........................................................................................................................... 21

8.8 Control and Diagnosis Registers ............................................................................................................................................................ 24

8.8.1 Definition of Control and Status Registers.................................................................................................................................. 24

8.9 ESD/EMC REMARKS ............................................................................................................................................................................ 26

8.9.1 General Remarks........................................................................................................................................................................ 26

8.9.2 ESD-Test .................................................................................................................................................................................... 26