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AS8650

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 ......................................................................................................................................................

6

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

7

6.1 Electrical System Specification............................................................................................................................................................. 8

6.2 DCDC Converter .................................................................................................................................................................................. 8

6.3 Low Drop Out Regulators..................................................................................................................................................................... 9

6.4 CAN Transceiver ................................................................................................................................................................................ 10

6.4.1 Timing Diagrams........................................................................................................................................................................ 12

6.5 Undervoltage Detection...................................................................................................................................................................... 13

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

14

7.1 Operating Modes and States.............................................................................................................................................................. 14

7.1.1 Normal Mode ............................................................................................................................................................................. 14

7.1.2 Receive-only Mode.................................................................................................................................................................... 14

7.1.3 Standby Mode............................................................................................................................................................................ 14

7.1.4 Sleep Mode................................................................................................................................................................................ 14

7.2 Power Management Strategy............................................................................................................................................................. 14

7.3 State Diagram..................................................................................................................................................................................... 17

7.4 Initialization Sequence........................................................................................................................................................................ 17

7.5 DCDC Converter ................................................................................................................................................................................ 19

7.6 Voltage Regulator LDO1..................................................................................................................................................................... 19

7.7 Voltage Regulator LDO2..................................................................................................................................................................... 19

7.8 Voltage Regulator LDO3..................................................................................................................................................................... 19

7.9 Over-Temperature Monitor ................................................................................................................................................................. 19

7.10 Undervoltage Reset.......................................................................................................................................................................... 19

7.11 Reset Block...................................................................................................................................................................................... 20

7.12 CAN Transceiver .............................................................................................................................................................................. 21

7.12.1 BUS Driver............................................................................................................................................................................... 21

7.12.2 Normal Receiver...................................................................................................................................................................... 21

7.12.3 Low Power Receiver................................................................................................................................................................ 21

7.12.4 Operating Modes ..................................................................................................................................................................... 21

7.12.5 Local Wake-up Event............................................................................................................................................................... 21

7.12.6 Remote Wake-up..................................................................................................................................................................... 22

7.13 Internal Flags.................................................................................................................................................................................... 23

7.13.1 VSUP_UV_flag ........................................................................................................................................................................ 23

7.13.2 VSUP_POK_flag...................................................................................................................................................................... 23

7.13.3 V5V_UV_flag ........................................................................................................................................................................... 23

7.13.4 V5V_POK_flag......................................................................................................................................................................... 23

7.13.5 VLDO2_UV_flag ...................................................................................................................................................................... 23

7.13.6 VLDO2_POK_flag.................................................................................................................................................................... 23

7.13.7 VLDO3_UV_flag ...................................................................................................................................................................... 23

7.13.8 VLDO3_POK_flag.................................................................................................................................................................... 23