L9969S datasheet(66/70 Pages) STMICROELECTRONICS

66 / 70 page

Contents

Block diagram and pin description .................................................2

1.1

Block diagram ................................................................. 2

1.2

Pin description ................................................................. 4

1.3

Pin definitions and functions ..................................................... 5

Electrical specifications ...........................................................9

2.1

Operating range ............................................................... 9

2.2

Thermal data .................................................................. 9

2.2.1

Temperature and load profile................................................ 9

2.3

Absolute maximum ratings...................................................... 10

2.3.1

Supply voltage ......................................................... 10

2.4

Quiescent current consumption.................................................. 11

2.5

ESD protection ............................................................... 11

2.6

Power Supply................................................................. 12

2.6.1

Power-ON reset ........................................................ 13

2.6.2

NABE and VDD monitoring ................................................ 13

Functional description ............................................................18

3.1

Description of external interfaces ................................................ 18

3.2

Functional behavior in detail .................................................... 18

3.2.1

Power stages .......................................................... 18

3.2.2

Inverse current on VS .................................................... 19

3.2.3

Reverse current ........................................................ 19

3.2.4

Power stage switching behavior ............................................ 20

3.2.5

Output control .......................................................... 30

3.2.6

Protection and monitoring ................................................. 30

3.2.7

SPI Interface ........................................................... 40

Functional safety .................................................................56

Application circuit ................................................................57

5.1

Bill Of Materials ............................................................... 58

Load dump pulse .................................................................59

Package information..............................................................60

L9969x

Contents

DS14029 - Rev 3

page 66/70

L9969S Datasheet(PDF) 66 Page - STMicroelectronics

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