Cirrus Logic AN368 - Manual (Page 6)

AN368
6 AN368REV2
2 Introduction
This application note provides a guide to designing a solid-state lighting (SSL) LED lamp circuit using Cirrus Logic's
CS1630. The second-stage topology is a flyback topology with a series LED lamp stack as the output configuration.
The first half of the document presents a step-by-step design procedure for calculating the required components for
each stage of the system. The second half of the document supports the design effort by showing an example of a
CS1630 design. The CS1630 example is based on the Cirrus Logic CRD1630-9W reference design. See the
CS1630/31 2-Channel TRIAC Dimmable LED Driver IC data sheet for more details about the CS1630 IC. See the
CRD1630-9W 9 Watt Reference Design and CRD1631-9W 9 Watt Reference Design data sheets for more details
regarding the reference design.
Further Reading
• See the CS1630/31 data sheet DS954 2-Channel TRIAC Dimmable LED Driver IC to review the features
and specifications of the CS1630/31.
• See application note AN372 Design Guide for a CS1612 and CS1613 Dimmer-compatible SSL Circuit for
more information about designing the CS1612/13.
• See customer reference design data sheet DS989RD1 CRD1630-9W 9 Watt Reference Design for more
information about the CRD1630.
• See customer reference design data sheet DS990RD1 CRD1631-9W 9 Watt Reference Design for more
information about the CRD1631.
• See application note AN369 CS1630/31 Device Programmer User Guide for more information about using
the application software to program the CS1630/31.