Contents

1

Diagram ...........................................................................3

2

Pin configuration ..................................................................4

3

Maximum ratings ..................................................................5

4

Electrical characteristics...........................................................6

5

Typical application diagram ........................................................7

6

Typical characteristics .............................................................8

7

The STPW12 detailed description .................................................11

7.1

Power breaker intervention and thermal shutdown ................................. 11

7.2

Current limit and thermal protections............................................. 11

7.3

Monitor/fault pin description .................................................... 11

7.4

Auto-retry delay time setting .................................................... 12

7.5

PWM mode description, masking time ........................................... 12

7.6

Details about the start-up sequence ............................................. 12

8

Application guidelines ............................................................15

8.1

Power supply voltage.......................................................... 15

8.2

Input and output capacitors..................................................... 15

8.3

Additional protections and layout guidelines....................................... 15

9

Package information ..............................................................16

9.1

Power SO8 package information ................................................ 16

Revision history .......................................................................19

STPW12

Contents

DS12478 - Rev 1

page 20/23