SPSB0813 datasheet(134/135 Pages) STMICROELECTRONICS

134 / 135 page

List of figures

Figure 1.

Functional block diagram of SPSB0815 and SPSB0813........................................ 3

Figure 2.

Functional block diagram of SPSB081C5 and SPSB081C3 ..................................... 4

Figure 3.

Pin connection SPSB0815 and SPSB0813 (top view) ......................................... 5

Figure 4.

Pin connection SPSB081C5 and SPSB081C3 (top view) ....................................... 5

Figure 5.

QFN32L 5x5 4-layers .............................................................. 11

Figure 6.

Voltage regulator behavior and diagnosis during supply voltage ramp-up / ramp-down conditions .......... 14

Figure 7.

Interrupt pin ..................................................................... 16

Figure 8.

Static monitoring: wake-up occurs if threshold is greater than the filter time ......................... 17

Figure 9.

Cyclic monitoring: the external contacts are supplied periodically by the internal timer .................. 18

Figure 10.

Main operating modes .............................................................. 20

Figure 11.

Watchdog in normal operating mode (no errors) ............................................ 21

Figure 12.

Watchdog with error conditions ........................................................ 21

Figure 13.

Watchdog in debug mode ........................................................... 22

Figure 14.

NReset pin...................................................................... 24

Figure 15.

DIAGN pin ...................................................................... 25

Figure 16.

Overvoltage protection on V1 ......................................................... 26

Figure 17.

Overvoltage detection V1 = 5 V ....................................................... 27

Figure 18.

Wake-up behavior according to LIN 2.2a ................................................. 28

Figure 19.

CANFD transceiver supply ........................................................... 30

Figure 20.

Transceiver state diagram ........................................................... 31

Figure 21.

CAN wake up capabilities ........................................................... 33

Figure 22.

Thermal shutdown protection and diagnosis related to thermal cluster 1............................ 35

Figure 23.

Thermal shutdown protection and diagnosis related to thermal cluster 2, 3 and 4 ..................... 36

Figure 24.

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

Figure 25.

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

Figure 26.

SPI pin description ................................................................ 42

Figure 27.

SPI signal description .............................................................. 43

Figure 28.

SDI frame ...................................................................... 44

Figure 29.

SDO frame...................................................................... 45

Figure 30.

Window watchdog operation.......................................................... 50

Figure 31.

Watchdog timing ................................................................. 59

Figure 32.

Watchdog early, late and safe windows .................................................. 60

Figure 33.

Slew-rate of the drivers ............................................................. 62

Figure 34.

LIN transmit, receive timing .......................................................... 75

Figure 35.

SPI – transfer timing diagram ......................................................... 77

Figure 36.

SPI input timing .................................................................. 78

Figure 37.

SPI output timing ................................................................. 79

Figure 38.

SPI CSN - output timing............................................................. 80

Figure 39.

SPI–CSN low to high transition and global status bit access .................................... 80

Figure 40.

Typical application diagram .......................................................... 83

Figure 41.

QFN32L 5x5 Package outline ........................................................ 125

SPSB081

List of figures

DS14048 - Rev 1

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