L9300 datasheet(171/178 Pages) STMICROELECTRONICS

171 / 178 page

9.6.1

Battery monitor functional description ........................................ 47

9.6.2

Battery monitor electrical characteristics ...................................... 47

9.6.3

Battery monitor error handling.............................................. 47

Valve drivers .....................................................................48

10.1

Solenoid driver................................................................ 48

10.1.1

Solenoid driver functional description ........................................ 48

10.1.2

Solenoid driver electrical characteristics ...................................... 60

10.1.3

Solenoid driver error handling .............................................. 64

10.2

Fail-safe pre-driver ............................................................ 64

10.2.1

Fail-safe pre-driver functional description ..................................... 64

10.2.2

Fail–safe pre–driver electrical characteristics .................................. 65

10.3

Pump pre-driver............................................................... 65

10.3.1

Pump pre-driver functional description ....................................... 65

10.3.2

Pump pre-driver electrical characteristics ..................................... 67

10.3.3

Pump pre-driver error handling ............................................. 68

Charge pump .....................................................................69

11.1

Charge pump functional description .............................................. 69

11.2

Charge pump electrical characteristics............................................ 69

11.3

Charge pump error handling .................................................... 70

General purpose output (GPO) ....................................................71

12.1

GPO functional description ..................................................... 71

12.2

GPO electrical characteristics ................................................... 73

12.3

GPO error handling............................................................ 74

PRUN watchdog ..................................................................75

13.1

PRUN watchdog functional description ........................................... 75

13.1.1

PRUN over frequency detection ............................................ 77

13.1.2

Reset-Latch function ..................................................... 78

13.2

PRUN watchdog electrical characteristics ......................................... 80

13.3

PRUN watchdog error handling.................................................. 81

Q&A Watchdog ...................................................................82

14.1

Q&A watchdog functional description ............................................. 82

14.1.1

Timing ................................................................ 82

14.1.2

Watchdog states evolution ................................................ 84

14.1.3

Out Of Sequence error cases .............................................. 87

14.1.4

Seed generation and answer check ......................................... 88

14.2

Q&A watchdog SPI registers .................................................... 89

14.2.1

L9300

Contents

DS12258 - Rev 5

page 171/178

L9300 Datasheet(PDF) 171 Page - STMicroelectronics

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