Contents

STBC02

2/39

DocID029261 Rev 2

Contents

1

Application schematic .................................................................... 6

2

Pin configuration (top through view) ............................................. 8

3

Maximum ratings ........................................................................... 10

4

Electrical characteristics .............................................................. 11

5

Typical performance characteristics ........................................... 15

6

Functional pin description............................................................ 19

6.1

GND, AGND.................................................................................... 19

6.2

NTC................................................................................................. 19

6.3

ISET and IPRE................................................................................ 19

6.4

BATMS............................................................................................ 19

6.5

BATSNS, BATSNSFV..................................................................... 20

6.6

BAT ................................................................................................. 20

6.7

IN .................................................................................................... 20

6.8

SYS ................................................................................................. 20

6.9

LDO................................................................................................. 21

6.10

WAKE-UP ....................................................................................... 21

6.11

CHG ................................................................................................ 21

6.12

CEN ................................................................................................ 22

6.13

RESET_NOW (RESET_CLEAR), nRESET, RST_PENDING ......... 22

6.13.1

Smart reset section control pins ....................................................... 22

6.13.2

Watchdog section control pins ......................................................... 23

6.14

SW1_OA, SW1_OB, SW1_I, SW2_OA, SW2_OB, SW2_I ............. 23

6.15

SW_SEL ......................................................................................... 24

7

Block diagram................................................................................ 27

8

Operation description ................................................................... 28

8.1

Power-on......................................................................................... 28

8.2

Battery charger................................................................................ 28

8.3

Battery temperature monitoring....................................................... 32

8.4

Battery overcharge protection ......................................................... 32

8.5

Battery over-discharge protection ................................................... 32

8.6

Battery discharge overcurrent protection ........................................ 32

8.7

Battery fault protection .................................................................... 32