Contents

STPMS2

2/36

DocID16525 Rev 5

Contents

1

Introduction ..................................................................................... 5

2

Internal block diagram .................................................................... 6

3

Pin configuration ............................................................................. 7

4

Maximum ratings ............................................................................. 8

5

Electrical characteristics ................................................................ 9

6

Applications................................................................................... 13

7

Terminology................................................................................... 16

7.1

Conventions .................................................................................... 16

7.2

Notations ......................................................................................... 16

8

Typical performance characteristics ........................................... 17

9

Theory of operation....................................................................... 19

9.1

General operation description ......................................................... 19

9.2

Functional description of the analog part ........................................ 19

9.3

Functional description of the digital part .......................................... 22

9.3.1

Decoder for different modes of operations ....................................... 23

9.3.2

Generator for clock frequency .......................................................... 23

9.4

Hard mode ...................................................................................... 24

9.5

Soft mode........................................................................................ 25

9.5.1

Writing to the configuration register in soft mode ............................. 30

10

Package information ..................................................................... 32

10.1

QFN16 (4x4 mm) package information ........................................... 33

11

Revision history ............................................................................ 35