Cirrus Logic AN404 User Manual
An404
Copyright
Cirrus Logic, Inc. 2014
(All Rights Reserved)
Cirrus Logic, Inc.
CRD1616A-11W-30V
AN404
Design Example of CS1616A
for 11W Dimmer-Compatible SSL Circuit
Features
• Supports Cirrus Logic CS1616A
• Quasi-resonant Flyback Topology with Constant-
current Output
• Flicker-free Dimming
• Line Voltage: 207VAC - 253VAC
• Rated Input Power: 11W
• Rated Output Power: 5W
• Efficiency: ~82% at 300mA for 10xLEDs 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 CS1616A, the CRD1616A-11W-30V. The
CRD1616A-11W-30V reference design demonstrates the
performance of the CS1616A resonant mode AC/DC LED
driver IC with a 300mA output driving 10xLEDs 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
AN404