VNI8200XP-32 datasheet(2/43 Pages) STMICROELECTRONICS

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Contents

VNI8200XP-32

2/43

DocID027849 Rev 3

Contents

Description....................................................................................... 6

Block diagram.................................................................................. 7

Pin connection................................................................................. 8

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

Electrical characteristics .............................................................. 12

5.1

Power section.................................................................................. 12

5.2

SPI characteristics .......................................................................... 13

5.3

Switching......................................................................................... 13

5.4

Logic inputs ..................................................................................... 14

5.5

Protection and diagnostic ................................................................ 14

5.6

Step-down switching regulator ........................................................ 16

5.7

LED driving array ............................................................................ 16

Reverse polarity protection .......................................................... 17

Demagnetization energy ............................................................... 18

Truth table...................................................................................... 19

Pin function description................................................................ 20

9.1

SPI/parallel selection mode (SEL2)................................................. 20

9.2

Serial data in (SDI).......................................................................... 20

9.3

Serial data out (SDO)...................................................................... 20

9.4

Serial data clock (CLK) ................................................................... 20

9.5

Slave select..................................................................................... 21

9.6

8/16-bit selection (SEL1) ................................................................. 21

9.7

Output enable (OUT_EN)................................................................ 21

9.8

IC warning case temperature detection........................................... 22

9.9

Fault indication ................................................................................ 22

9.10

Power Good ( PG ) ........................................................................ 23

9.11

Programmable watchdog counter reset (WD) ................................. 23

SPI operation (SEL2 = H) .............................................................. 25

10.1

8-bit SPI mode (SEL1 = L) .............................................................. 25

10.2

16-bit SPI mode (SEL1 = H)............................................................ 25

LED driving array .......................................................................... 27

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