SPSB081 datasheet(130/137 Pages) STMICROELECTRONICS

130 / 137 page

3.8

Reset output (NRESET) ........................................................ 25

3.9

DIAGN output ................................................................ 25

3.10

V1 overvoltage detection ....................................................... 26

3.11

LIN bus interfaces (only for SPSB0815 and SPSB0813) ............................. 27

3.11.1

Features .............................................................. 27

3.11.2

Error handling .......................................................... 28

3.11.3

Wake-up from standby modes.............................................. 28

3.12

CAN FD bus transceiver........................................................ 29

3.12.1

Features .............................................................. 29

3.12.2

CAN transceiver supply................................................... 29

3.12.3

CAN transceiver operating modes........................................... 31

3.12.4

CAN error handling ...................................................... 31

3.12.5

Wake-up by CAN ....................................................... 32

3.12.6

CAN receive only mode .................................................. 33

3.12.7

CAN looping mode ...................................................... 33

3.13

Power supply fail ............................................................. 33

3.13.1

VS supply failure ........................................................ 33

3.13.2

VSREG supply failure ..................................................... 34

3.14

Thermal state machine ........................................................ 35

3.15

Power outputs OUT1..4 ....................................................... 37

3.16

Open-load detection .......................................................... 37

3.17

Overcurrent detection ......................................................... 37

3.18

Current monitor .............................................................. 37

3.19

Constant current mode ........................................................ 38

3.20

Temperature warning and shutdown ............................................. 39

3.21

Thermal clusters .............................................................. 39

3.22

Functional safety management ................................................. 40

Serial peripheral interface (SPI) ...................................................42

4.1

ST-SPI ...................................................................... 42

4.1.1

Physical layer .......................................................... 43

4.2

Signal description ............................................................. 43

SPSB081

Contents

DS14048 - Rev 3

page 130/137

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