L9963E datasheet(177/184 Pages) STMICROELECTRONICS

177 / 184 page

4.11.3

Cell open wire diagnostic ................................................. 67

4.11.4

ADC swap............................................................. 68

4.11.5

PCB open diagnostic..................................................... 68

4.11.6

Voltage ADC BIST ...................................................... 69

4.11.7

Die temperature diagnostic and over temperature............................... 69

4.11.8

Balancing open load diagnostic............................................. 69

4.11.9

Balancing short load diagnostic............................................. 70

4.11.10 Balancing secondary timing ............................................... 70

4.11.11 Oscillator main clock monitoring ............................................ 71

4.11.12 Stand-by oscillator main clock monitoring ..................................... 71

4.11.13 Regulator UV/OV diagnostic ............................................... 71

4.11.14 Regulator self test ....................................................... 71

4.11.15 Regulator current limitation ................................................ 72

4.11.16 GPIO short FAULT ...................................................... 72

4.11.17 GPIO open fault (GPIO3-9) ................................................ 72

4.11.18 GPIO OT/UT (UV/OV) and fast charge OT diagnostic (GPIO3-9) ................... 73

4.11.19 Current sense overcurrent................................................. 74

4.11.20 Current sense open diagnostic ............................................. 74

4.11.21 Reference voltage monitor ................................................ 74

4.11.22 Communication integrity .................................................. 75

4.11.23 Communication loss detection ............................................. 75

4.11.24 Rolling counter ......................................................... 75

4.11.25 Trimming and calibration data integrity check .................................. 75

4.11.26 FAULT heart beat ....................................................... 75

4.11.27 GND loss detection ...................................................... 76

4.11.28 Safety mechanisms summary .............................................. 76

4.12

Voltage conversion routine...................................................... 83

4.12.1

Routine structure........................................................ 84

4.12.2

Routine execution modes ................................................. 86

4.12.3

Routine steps .......................................................... 93

4.12.4

Operations periodicity .................................................... 99

4.12.5

Transition between cyclic wake up and normal states ........................... 100

L9963E

Contents

DS13636 - Rev 12

page 177/184

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