L9961 datasheet(61/65 Pages) STMICROELECTRONICS

61 / 65 page

3.6.1

Electrical parameters .................................................... 33

3.7

HS/LS pre-drivers (CHG/DCHG/FUSE) ........................................... 33

3.7.1

Battery pack charge/discharge relays (CHG/DCHG) ............................. 33

3.7.2

FUSE pre-driver ........................................................ 34

3.8

Digital IOs (RDY/SDA/SCL/FAULTN_SAFE/FAULTN/OD)............................ 37

3.8.1

Data-ready interrupt pin (RDY) ............................................. 37

3.8.2

Fault interrupt pin (FAULTN) ............................................... 37

3.8.3

MCU emergency reset (FAULTN_SAFE) ..................................... 39

3.8.4

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

3.9

I2C communication interface .................................................... 39

3.9.1

Clock polarity .......................................................... 40

3.9.2

START/STOP conditions.................................................. 40

3.9.3

ACK/NACK ............................................................ 41

3.10

I2C protocol layer.............................................................. 41

3.10.1

Addressing and R/ W bit .................................................. 41

3.10.2

CRC ................................................................. 41

3.10.3

Single read/block read ................................................... 42

3.10.4

Single WRITE/block WRITE ............................................... 42

3.10.5

Electrical parameters .................................................... 43

3.11

Non-volatile memory (NVM)..................................................... 44

3.11.1

Electrical parameters .................................................... 46

Device register map ..............................................................47

Application information ...........................................................48

5.1

Power supply circuit ........................................................... 48

5.2

Cell voltage sensing and balancing circuit ......................................... 49

5.3

Current sense circuit........................................................... 49

5.4

NTC analog front end .......................................................... 50

5.5

HS/LS pre-drivers circuit ....................................................... 51

5.6

Fuse circuit................................................................... 51

5.7

Digital IOs.................................................................... 52

5.8

Charger connection............................................................ 53

L9961

Contents

DS14012 - Rev 3

page 61/65

L9961 Datasheet(PDF) 61 Page - STMicroelectronics

L9961 Datasheet(HTML) 61 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Datasheet Download

Link URL