AS8530-ASOT-002 datasheet(2/32 Pages) AMSCO

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AS8530

Datasheet - Contents

Contents

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

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

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

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

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

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

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

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

6.2 Digital Inputs and Outputs .................................................................................................................................................................... 6

6.3 Detailed System and Block Specifications ........................................................................................................................................... 7

6.3.1 Electrical System Specifications .................................................................................................................................................. 7

6.4 Low Dropout Regulator......................................................................................................................................................................... 7

6.5 LIN Transceiver .................................................................................................................................................................................... 8

6.5.1 DC Electrical Characteristics ....................................................................................................................................................... 8

6.5.2 AC Electrical Characteristics ....................................................................................................................................................... 9

6.5.3 Temperature Limiter .................................................................................................................................................................. 10

6.5.4 TX Timeout Watchdog ............................................................................................................................................................... 10

6.6 VCC Undervoltage Reset and Window Watchdog.............................................................................................................................. 11

6.7 Two Port Serial Interface .................................................................................................................................................................... 12

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

7.1 Voltage Regulator (LDO) .................................................................................................................................................................... 13

7.2 Temperature Limiter............................................................................................................................................................................ 13

7.3 VSUP Undervoltage Reset ................................................................................................................................................................. 13

7.3.1 VSUP Undervoltage in Normal Mode......................................................................................................................................... 13

7.3.2 VSUP Undervoltage in Standby Mode / Sleep Mode................................................................................................................. 13

7.3.3 VSUP Undervoltage in Low Slew Mode..................................................................................................................................... 13

7.4 RESET................................................................................................................................................................................................ 14

7.5 VCC Undervoltage Reset ................................................................................................................................................................... 14

7.6 Window Watchdog (WWD)................................................................................................................................................................. 14

7.7 LIN Transceiver .................................................................................................................................................................................. 15

7.8 Operating Modes and States.............................................................................................................................................................. 15

7.8.1 Normal Mode ............................................................................................................................................................................. 15

7.8.2 Standby Mode............................................................................................................................................................................ 15

7.8.3 Sleep Mode................................................................................................................................................................................ 15

7.8.4 Temporary Shutdown Mode ...................................................................................................................................................... 16

7.8.5 Thermal Shutdown State ........................................................................................................................................................... 16

7.9 State Diagram..................................................................................................................................................................................... 17

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

8.1 Initialization......................................................................................................................................................................................... 18

8.2 Wake-Up............................................................................................................................................................................................. 19

8.3 Over-Temperature Shutdown ............................................................................................................................................................. 19

8.4 LIN BUS Transceiver.......................................................................................................................................................................... 19

8.4.1 Transmit Mode........................................................................................................................................................................... 19

8.4.2 Receive Mode............................................................................................................................................................................ 20

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