L9963E datasheet(175/184 Pages) STMICROELECTRONICS

175 / 184 page

Contents

Device introduction ................................................................3

Block diagram and pin description .................................................5

2.1

Block diagram ................................................................. 5

2.2

Pin description ................................................................. 6

Product electrical ratings ..........................................................9

3.1

Operating range ............................................................... 9

3.1.1

Supply voltage ranges.................................................... 10

3.2

Absolute maximum ratings...................................................... 10

3.3

Temperature ranges and thermal data ............................................ 11

3.4

Power management ........................................................... 12

Functional description ............................................................14

4.1

Device functional state ......................................................... 14

4.1.1

Reset and Sleep states ................................................... 14

4.1.2

Init state .............................................................. 15

4.1.3

Normal state ........................................................... 16

4.1.4

Power up sequence ..................................................... 17

4.1.5

Silent Balancing state .................................................... 18

4.1.6

Cyclic wake up state ..................................................... 18

4.1.7

Sleep parameters ....................................................... 19

4.2

Serial communication interface .................................................. 20

4.2.1

Communication interface selection .......................................... 20

4.2.2

Serial Peripheral Interface (SPI) ............................................ 21

4.2.3

Isolated Serial Peripheral Interface .......................................... 22

4.2.4

SPI protocol details ...................................................... 27

4.3

FAULT line ................................................................... 36

4.3.1

State transitions in case of failure detection ................................... 37

4.3.2

FAULT line configuration .................................................. 37

4.3.3

Failure sources ......................................................... 37

4.3.4

Electrical parameters .................................................... 39

4.4

Cell voltage measurement ...................................................... 40

L9963E

Contents

DS13636 - Rev 12

page 175/184

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