Cirrus-logic CRD1615A-8W Manual de usuario descargar pdf

Cirrus Logic, Inc.

http://www.cirrus.com

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CRD1615A-8W

8 Watt Reference Design

Features

• Supports Cirrus Logic CS1615A

• Reduced BOM Cost Compared to CS1615

• Isolated Flyback Topology with Constant-current

Output

• Flicker-free Dimming

• <1% Minimum Dimming Across a Broad Range of

Dimmers

• Line Voltage 108VAC - 132VAC

• Rated Output Power: 7.5W

• Efficiency: ~82% at 250mA for 10

LEDs in Series

• Power Factor >0.99

General Description

The CRD1615A-8W reference design demonstrates the

performance of the CS1615A single stage dimmable

AC/DC LED driver IC with a 250mA output driving

10LEDs in series

The CS1615A is designed to support

a reduced off-chip BOM compared to the CS1615.

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 (GU10, A19-type, PAR, BR).

DIMENSIONS (OVERALL)

Length Width Height

For more information, see Figure 3 on page 6.

ORDERING INFORMATION

CRD1615A-8W-Z 8 Watt Reference Design

Supports CS1615A

2.028 51.5mm1.004 25.5mm0.65 16.5mm

AUG‘13

DS1043RD2

1 2 3 4 5 6 ... 20 21

CRD1615A-8W 1
8 Watt Reference Design 1

Indice de contenidos

Pagina 1 - 8 Watt Reference Design

Pagina 2

CRD1615A-8W10 DS1043RD2Figure 7. Bottom Routing

Pagina 3

CRD1615A-8WDS1043RD2 115. THERMAL IMAGINGFigure 8. Top ThermalFigure 9. Bottom Thermal

Pagina 4

CRD1615A-8W12 DS1043RD26. DIMMER COMPATIBILITYA19 Lamp with a CS1615A (120V/60Hz)Date 8/12/2013 Power Factor1,40.994Vendor Cirrus Logic EN55015 Compli

Pagina 5

CRD1615A-8WDS1043RD2 131. Tested at nominal input voltage, nominal input frequency and without a dimmer after soaking for 15 minutes2. Average3. Peak-

Pagina 6

CRD1615A-8W14 DS1043RD27. TRANSFORMER CONSTRUCTIONThe CRD1615A-8W provides power factor correction and dimmer compatibility with a constant output cur

Pagina 7

CRD1615A-8WDS1043RD2 158. PERFORMANCE PLOTS0.200.220.240.260.280.30108 110 112 114 116 118 120 122 124 126 128 130 132Output Current (A)Line Voltage (

Pagina 8

CRD1615A-8W16 DS1043RD2Figure 13. Power Factor vs. Line Voltage0.900.910.920.930.940.950.960.970.980.991.00108 110 112 114 116 118 120 122 124 126 12

Pagina 9

CRD1615A-8WDS1043RD2 17Figure 15. Typical Output Current vs Dim Angle05010015020025030035 50 65 80 95 110 125 140 155 170 180Output Current (mA)Dim A

Pagina 10

CRD1615A-8W18 DS1043RD2Figure 16. No-dimmer Mode, Startup, 120 VACFigure 17. No-dimmer Mode, Steady-state, 120VAC

Pagina 11

CRD1615A-8WDS1043RD2 19Figure 18. Leading-edge Dimmer Mode, Steady-state, 120VACFigure 19. Trailing-edge Dimmer Mode, Steady-state, 120VAC

Pagina 12

CRD1615A-8W2 DS1043RD2Contacting Cirrus Logic SupportFor all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the

Pagina 13

CRD1615A-8W20 DS1043RD29. CONDUCTED EMIDevice Under Test: CRD1615A-8W-Z Operating Conditions: NOMINALTest Specification: EN55022:2010 Operator Name: C

Pagina 14

CRD1615A-8WDS1043RD2 2110.REVISION HISTORYRevision Date ChangesRD1 JUL 2013 Preliminary releaseRD2 AUG 2013 Content clarification

Pagina 15

CRD1615A-8WDS1043RD2 31. INTRODUCTIONThe CS1615A is a 120VAC quasi-resonant flyback mode dimmable LED controller IC. The CS1615A uses a digitalcontrol

Pagina 16

CRD1615A-8W4 DS1043RD22. SCHEMATICFigure 1. Schematic127(681/(6627+(5:,6(63(&,),('$//5(6,67259$/8(6$5(,12+06$8;,/,$5<+$5&a

Pagina 17

CRD1615A-8WDS1043RD2 53. BILL OF MATERIALS Item Rev DescripƟon Qty Reference Designator MFG MFG P/N1 DIODE RECT 200V 0.8A NPB MINIDIP 1 BR1 DIODES INC

Pagina 18

CRD1615A-8W6 DS1043RD24. BOARD LAYOUTFigure 3. PCB Dimensions

Pagina 19

CRD1615A-8WDS1043RD2 7Figure 4. Top Silkscreen

Pagina 20

CRD1615A-8W8 DS1043RD2Figure 5. Bottom Silkscreen

Pagina 21

CRD1615A-8WDS1043RD2 9Figure 6. Top Routing