Contents

1

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

2

Electrical data .....................................................................3

2.1

Absolute maximum ratings....................................................... 3

2.2

Recommended operating conditions .............................................. 3

2.3

Thermal data .................................................................. 3

2.4

ESD protection ................................................................ 3

3

Electrical characteristics...........................................................5

4

Pin description ....................................................................7

5

Typical application.................................................................8

6

Functional description .............................................................9

6.1

Standby and power-up .......................................................... 9

6.2

Microstepping sequencer ........................................................ 9

6.3

PWM current control ........................................................... 12

6.3.1

OFF time adjustment..................................................... 14

6.4

Overcurrent and short-circuit protection ........................................... 15

6.5

Thermal shutdown............................................................. 17

7

Graphs ...........................................................................19

8

Package information..............................................................21

8.1

VFQFPN 3x3x1.0 16L package information........................................ 21

Revision history .......................................................................23

Contents ..............................................................................24

List of tables ..........................................................................25

List of figures..........................................................................26

STSPIN220

Contents

DS11633 - Rev 4

page 24/27