L9908 datasheet(147/153 Pages) STMICROELECTRONICS

147 / 153 page

5.20

Serial Peripheral Interface (SPI) ................................................104

5.20.1

Protocol description..................................................... 105

5.20.2

Frame description ...................................................... 107

5.20.3

Frame monitoring ...................................................... 110

5.20.4

Error handling ......................................................... 110

5.20.5

5.21

Window Watchdog Timer (WTD) ................................................130

Application circuit .............................................................. 136

6.1

12 V/24 V systems ...........................................................136

6.2

48 V systems ................................................................137

6.3

Bill of materials ..............................................................137

6.4

Layout guidelines ............................................................139

Package information............................................................ 140

7.1

TQFP48 (7x7x1 mm exp. pad down) package information ..........................140

7.2

TQFP48 (7x7x1 mm exp. pad down) PCB landpattern .............................142

Revision history ..................................................................... 143

L9908

Contents

DS13546 - Rev 3

page 147/153

L9908 데이터시트(PDF) 147 Page - STMicroelectronics