Cirrus Logic AN398 User Manual
An398
Copyright
Cirrus Logic, Inc. 2014
(All Rights Reserved)
Cirrus Logic, Inc.
Top
Bottom
AN398
Design Example of CS1610
for 15W Dimmer-Compatible SSL Circuit
Features
• Supports Cirrus Logic CS1610
• Quasi-resonant Flyback Topology with Constant-
current Output
• Flicker-free Dimming
• Line Voltage 108VAC - 132VAC
• Rated Input Power: 15W
• Rated Output Power: 13.2W
• Efficiency: ~81% at 470mA for 9xLEDs in Series
• Low Component Count
General Description
This application note provides an example of a Solid State
Lighting (SSL) LED lamp circuit designed using Cirrus
Logic’s CS1610, the CRD1610-15W-27V. The CRD1610-
15W-27V reference design demonstrates the performance
of the CS1610 resonant mode AC/DC LED driver IC with a
470mA output driving 9xLEDs in series. It offers best-in-
class dimmer compatibility and minimum dimming
performance with leading-edge, trailing-edge, and digital
dimmers. The form factor is targeted to fit into many LED
bulb applications (A19-type, PAR).
AUG‘14
AN398