Cirrus-logic CDB1611-8W Manuel d'utilisateur

Copyright  Cirrus Logic, Inc. 2013(All Rights Reserved)Cirrus Logic, Inc.http://www.cirrus.comCDB1611-8WCDB1611-8W 8 Watt Demonstration BoardFeatures

CDB1611-8W10 DS978DB45. DIMMER COMPATIBILITY - CS1611 (220V - 240V)Input Power 7.7W Dimmer Compatibility 972/1008 Efficiency 83.1%Date12/20/2011 Power

CDB1611-8WDS978DB4 11Notes: 1. Tested at nominal input voltage, nominal input frequency and without a dimmer after soaking for 15 minutes2. Tested at

CDB1611-8W12 DS978DB46. INDUCTOR CONSTRUCTIONThe CDB1611-8W includes a critical conduction mode (CRM) boost converter that provides power factor corre

CDB1611-8WDS978DB4 136.2 Flyback TransformerThe flyback transformer stage is a quasi-resonant peak current-regulated DC-DC converter capable of delive

CDB1611-8W14 DS978DB47. PERFORMANCE PLOTS -0.100.10.20.30.40.50.620 40 60 80 100 120 140 160 180Output Current (mA)Dim Angle (°)Figure 9. Typical

CDB1611-8WDS978DB4 15Figure 11. Output Current vs. Line Voltage0.000.200.400.600.801.00200 210 220 230 240 250 260Output Current (A)Line Voltage (V)5

CDB1611-8W16 DS978DB4Figure 13. Power Factor vs. Line Voltage, 207VAC to 253VAC0.600.700.800.901.00200 210 220 230 240 250 260Power FactorVin (VAC)

CDB1611-8WDS978DB4 17Figure 14. No-dimmer Mode, Startup 230VACFigure 15. No-dimmer Mode, Steady-state, 230VAC

CDB1611-8W18 DS978DB4Figure 16. Boost FET, Q1, WaveformFigure 17. Flyback FET, Q3, Waveform

CDB1611-8WDS978DB4 19Figure 18. ILED at Maximum Dim Angle, Turn-on WaveformsFigure 19. ILED at Medium Dim Angle, Turn-on Waveforms

CDB1611-8W2 DS978DB4Contacting Cirrus Logic SupportFor all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the on

CDB1611-8W20 DS978DB4Figure 20. ILED at Minimum Dim Angle, Turn-on Waveforms

CDB1611-8WDS978DB4 218. REVISION HISTORYRevision Date ChangesDB1 FEB 2012 Initial Release.DB2 FEB 2012 Change to schematic and BOM.DB3 AUG 2012 Update

CDB1611-8WDS978DB4 31. INTRODUCTIONThe CS1611 is a 230VAC quasi-resonant flyback mode dimmable LED controller IC. The CS1611 uses a digital con-trol a

CDB1611-8W4 DS978DB42. SCHEMATIC=5(9$-&0-&06+((72)6+((7(1*,1((5'$7('5$:1%<3$576+(

CDB1611-8WDS978DB4 53. BILL OF MATERIALSFigure 2. Bill of MaterialsItem Rev Description Qty Reference Designator MFG MFG P/N1AWIRE 24 AWG SOLID PVC I

CDB1611-8W6 DS978DB44. BOARD LAYOUTFigure 3. PCB Dimensions

CDB1611-8WDS978DB4 7Figure 4. Top Silkscreen

CDB1611-8W8 DS978DB4Figure 5. Top Routing

CDB1611-8WDS978DB4 9Figure 6. Bottom Routing