L9800 datasheet(51/55 Pages) STMICROELECTRONICS

51 / 55 page

Contents

Detailed description ...............................................................3

Block diagram and pin description .................................................4

Application circuit .................................................................6

Product characteristics ............................................................8

4.1

Operating range ............................................................... 8

4.1.1

Supply voltage ranges..................................................... 8

4.2

Absolute maximum ratings....................................................... 8

4.3

Temperature ranges and thermal data ............................................ 10

Input/output ......................................................................11

5.1

Control pins .................................................................. 11

5.2

Input pins (IN0, IN1) ........................................................... 11

5.3

Reset pin .................................................................... 11

5.4

DIS pin ...................................................................... 11

5.5

IDLE pin ..................................................................... 11

5.6

Electrical parameters .......................................................... 12

Power supply .....................................................................13

6.1

Operating modes.............................................................. 13

6.1.1

Power-up ............................................................. 15

6.1.2

Sleep mode............................................................ 19

6.1.3

Idle mode ............................................................. 19

6.1.4

Active mode ........................................................... 20

6.1.5

Limp-home mode ....................................................... 20

6.1.6

Power supply transition ................................................... 20

6.1.7

Reset ................................................................ 21

6.1.8

Undervoltage on VBATT .................................................. 21

6.1.9

Low operating power-on VDDIO ............................................ 22

6.1.10

Power-down ........................................................... 22

6.2

Electrical parameters .......................................................... 25

Power stages .....................................................................28

7.1

Operating modes.............................................................. 28

7.1.1

Switching resistive loads .................................................. 28

7.1.2

Inductive output clamp ................................................... 28

7.1.3

Maximum load inductance................................................. 29

7.2

Bulb inrush mode ............................................................. 29

7.3

PWM generator ............................................................... 30

L9800

Contents

DS14041 - Rev 2

page 51/55

L9800 データシート(PDF) 51 Page - STMicroelectronics

L9800 データシート(HTML) 51 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

データシートダウンロード