AN439

Conclusion

15/16

3

Conclusion

Thanks to the logic level and Snubberless TRIACs, the designer can use devices with a

commutation behavior which is compatible with all applications in the 50 or 60 Hz range.

This includes phase control and static commutation for loads going from a few watts to

several kilowatts.

These classes of TRIAC offer:

●

An increase in the security margin of circuits, particularly where there is a risk of

spurious triggering

●

Reduction of costs by using logic level TRIACs, without the need of an interface

between the TRIAC gate and the logic circuit, or using Snubberless TRIACs, which are

specified without a resistive / capacitive network

4

Revision history

Table 4.

Document revision history

Date

Revision

Changes

May-1992

1

Initial release.

19-Apr-2004

2

Stylesheet update. No content change.

07-Mar-2008

3

Reformatted to current standards. Complete rewrite for text and

graphics. Part numbers updated for current products.