Fairchild FEBFL7730_L20H008A User Manual Download Page 1

Page: 1 / 20

FEBFL7730_L20H008A • Rev. 0.0.2

User Guide for

FEBFL7730_L20H008A

8.4W LED Bulb Using FL7730

Featured Fairchild Product:

FL7730

Direct questions or comments

about this evaluation board to:

“Worldwide Direct Support”

Fairchild Semiconductor.com

Summary of Contents for FEBFL7730_L20H008A

Page 1: ...n 1 FEBFL7730_L20H008A Rev 0 0 2 User Guide for FEBFL7730_L20H008A 8 4W LED Bulb Using FL7730 Featured Fairchild Product FL7730 Direct questions or comments about this evaluation board to Worldwide Di...

Page 2: ...otographs 6 4 Printed Circuit Board 7 5 Schematic 8 2 1 Bill of Materials 9 2 2 Transformer and Winding Specifications 10 6 Performance of Evaluation Board 11 6 1 Startup 11 6 2 Operation Waveforms 11...

Page 3: ...reduce external components such as input bulk capacitor and feedback circuitry and minimize cost To improve good power factor and Total Harmonic Distortion THD constant on time control is utilized wit...

Page 4: ...2012 Fairchild Semiconductor Corporation 4 FEBFL7730_L20H008A Rev 0 0 2 1 3 Internal Block Diagram Figure 1 Internal Block Diagram...

Page 5: ...ut Voltage Change 180 265VAC 3 1 Output Voltage Change 10 28V Efficiency Note No Dimmer Connected Eff180VAC 84 5 Efficiency at 180VAC Line Input Voltage Eff220VAC 84 4 Efficiency at 220VAC Line Input...

Page 6: ...Bottom View of Evaluation Board Dimensions 62 5mm L 26 8mm W 12 0 H Figure 4 Side View in Bulb Case Type 1 Figure 5 Bottom View in Bulb Case Type 1 Bulb Case Type 1 32mm Case Diameter 40mm Case Depth...

Page 7: ...2012 Fairchild Semiconductor Corporation 7 FEBFL7730_L20H008A Rev 0 0 2 4 Printed Circuit Board 26 8 16 1 19 0 Figure 8 Printed PCB Top Side Figure 9 Printed PCB Bottom Side...

Page 8: ...3 6 2 4 5 R 8 150k R 9 20k R 13 10 R 14 1 2 D 3 1N4003 C 5 10p C 9 4 7nF C 4 1u L 1 10mH R 15 1 0 C 6 2 2u R 17 51k D 2 11V R 5 510k R 6 200k R 4 1M Q1 MB8S R 1 1k 0 5W C 1 100n C 2 100n Q3 FL7730 Q4...

Page 9: ...225 25V SMD Capacitor 2012 TDK 19 C7 KMG 47 F 35V 1 47 F 35V Electrolytic Capacitor Samyoung 20 C8 C1206C103KDRACTU 1 103 1kV SMD Capacitor 3216 Kemet 21 C9 SCFz2E472M10BW 1 472 250V Y Capacitor Samw...

Page 10: ...od 1 NP1 5 3 0 13 38 Ts Solenoid Winding 2 Insulation Polyester Tape t 0 025mm 2 Layer 3 NS NS NS 0 3 TIW 24 Ts Solenoid Winding 4 Insulation Polyester Tape t 0 025mm 2 Layer 5 NA 2 6 0 13 18 Ts Solen...

Page 11: ...D waveform VDD indicates a reflected output voltage Figure 13 Startup VIN 220VAC C1 VIN C2 VCS C3 VDD C4 IOUT No Dimmer Connected 6 2 Operation Waveforms In steady state line compensation regulates ou...

Page 12: ...e Table 4 Constant Current Regulation by Output Voltage Change 10 28V Input Voltage Min Current Max Current Tolerance 180VAC 60Hz 385mA 399mA 1 8 220VAC 60Hz 383mA 398mA 1 9 230VAC 60Hz 382mA 399mA 2...

Page 13: ...output diode conduction time The output current in the short LED condition is less than 1 5A which doesn t damage any external components Figure 16 Short LED Condition VIN 220VAC C1 VCS C2 VDD C3 VIN...

Page 14: ...in Figures 18 20 Active damper RC bleeder and dimming control in FL7730 implement flicker free dimming operation Spike current at dimmer firing is less than 1A Figure 18 Dimming Operation Waveforms Ma...

Page 15: ...20VAC C1 VIN C2 VCS C4 IIN Output current is controlled by dimming function when rotating dimmer switch as in the dimming curve in Figure 21 The dimming control block in FL7730 smoothly changes regula...

Page 16: ...e vs Efficiency Table 7 System Efficiency Input Voltage Input Power Output Current Output Voltage Output Power Efficiency 180VAC 10 13W 392mA 21 84V 8 56W 84 5 220VAC 9 97W 386mA 21 80V 8 41W 84 4 230...

Page 17: ...Rev 0 0 2 6 8 Operating Temperature Temperature of the all components on this board is less than 55 C Figure 23 Board Temperature Top View VIN 220VAC IO 380mA Bottom of MOSFET 51 C Diode 45 C FL7730 4...

Page 18: ...2012 Fairchild Semiconductor Corporation 18 FEBFL7730_L20H008A Rev 0 0 2 6 9 EMI The all measurement was conducted in observance of CISPR22 criteria Figure 25 EMI Results VIN 220V VOUT 22V IOUT 380mA...

Page 19: ...expected to result in significant injury to the user 2 A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure...

Page 20: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information ON Semiconductor FEBFL7730_L20H008A FEBFL7730 L20H008A GEVB...