Rev. G 08/16

9

TOP221-227

www.power.com

Figure 9. Recommended TOPSwitch Layout.

D

S

C

CONTROL

SOURCE

SOURCE

DRAIN

TOP VIEW

DIP-8/SMD-8 PACKAGE

TO-220 PACKAGE

TOP VIEW

Design Tools

The following tools available from Power Integrations greatly

simplify TOPSwitch based power supply design.

• Data Book and Design Guide includes extensive

application information

• Excel Spreadsheets for Transformer Design - Use of

this tool is strongly recommended for all TOPSwitch

designs.

• Reference design boards – Production viable designs

that are assembled and tested.

All data sheets, application literature and up-to-date versions

of the Transformer Design Spreadsheets can be downloaded

from our Web site at www.power.com. A diskette of the

Transformer Design Spreadsheets may also be obtained by

sending in the completed form provided at the end of this

data sheet.