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NCL30185FLYGEVB,
NCL30188FLYGEVB
10 W High Power Factor
Isolated LED Driver
Evaluation Board
User's Manual
Overview
This manual covers the specification, theory of operation, testing
and construction of the NCL30185/88FLYGEVB demonstration
board. The NCL30185/88 board demonstrates a 10 W high PF isolated
flyback LED driver in a typical A19 outline. The 2 demo boards are
nearly identical in construction except for the controller and Vcc bulk
capacitor. The NCL30188 controller is a non−dimming version while
the NCL30185 supports 3 levels of step dimming.
Specifications
Input voltage (Class 2 Input, no ground)
Line Frequency
Power factor (100% Load)
THD (100% Load)
Class 2 Output Mains Isolated
Output Voltage Range
Output Current
Efficiency
Start Up Time
(
)
EMI
conducted
As illustrated, the key features of this demo board include:
•
Wide Mains
•
Low THD across line and load
•
High Power Factor across wide line and load
•
Integrated auto recovery fault protection
(can be letched by choice A version)
Programmable over temperature thermal foldback
♦
(NTC mounted on PCB)
Cycle by cycle current limiting
♦
Open LED and shorted output protection
♦
© Semiconductor Components Industries, LLC, 2018
March, 2018 − Rev. 0
90 − 265 V ac
50 Hz/60 Hz
0.9
Min
20%
Max
14 − 28 V dc
350 mA dc
±2%
85%
Typ.
< 500 msec
Typ.
Class B
FCC/CISPR
1
www.onsemi.com
EVAL BOARD USER'S MANUAL
Figure 1. NCL30185FLYGEVB/
NCL30188FLYGEVB
Evaluation Board
Publication Order Number:
EVBUM2551/D
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Table of Contents
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Related Manuals for ON Semiconductor NCL30185FLYGEVB
Summary of Contents for ON Semiconductor NCL30185FLYGEVB
- Page 1 Vcc bulk capacitor. The NCL30188 controller is a non−dimming version while the NCL30185 supports 3 levels of step dimming. Specifications Figure 1. NCL30185FLYGEVB/ NCL30188FLYGEVB Input voltage (Class 2 Input, no ground) 90 − 265 V ac...
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Page 2: Theory Of Operation
NCL30185FLYGEVB, NCL30188FLYGEVB THEORY OF OPERATION Power Stage CrM Timing The power stage for the demo boards is an isolated In the off time, the voltage on the transformer/inductor flyback. The controller has a built in control algorithm that forward biases Dout and D9. When the current in the is specific to the flyback transfer function. - Page 3 LED V and current. Step Dimming Step dimming only available NCL30185FLYGEVB. Cbulk is added to keep Vcc active for brief AC power interruptions. There are 3 dimming current levels for the NCL30185FLYGEVB after the driver is powered on. 100% www.onsemi.com...
- Page 4 NCL30185FLYGEVB, NCL30188FLYGEVB SCHEMATIC +HVDC 1.5 mH +HVDC_iso AC_L 2.7 mH FUSE 120nF 400 V 120nF 400 V − AC_N MB6S 2.7 mH Figure 2. Input Circuit Cbulk is not stuffed on the NCL30188 version. LED+ +HVDC +HVDC_iso Dout Rclmp Cout...
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Page 5: Bill Of Material
NCL30185FLYGEVB, NCL30188FLYGEVB BILL OF MATERIAL Table 1. BILL OF MATERIAL Substitution Allowed Quantity Reference Part Manufacturer Mfr_PN PCB Footprint CVcc 4.7 mF TAJB475M035RNJ 1210 Cbulk Panasonic EEU−FC1E270 CAP−ALEL−4X11−HOR 27 mF Cout 330 mF 35 V Nichicon UHE1V331MPD CAP−ALEL−10X16−HOR C4, C5... - Page 6 NCL30185FLYGEVB, NCL30188FLYGEVB GERBER VIEWS Figure 4. Top Side PCB Figure 5. Bottom Side PCB www.onsemi.com...
- Page 7 NCL30185FLYGEVB, NCL30188FLYGEVB Figure 6. PCB Outline Mark the appropriate Version Here White Wires Here Black Wire Here Short Flying Lead Here Cbulk not stuffed on NCL30188FLYGDVB Red Wire Here Long Flying Lead Here NOTES: 1. Trim Transformer flying leads for minimum length.
- Page 8 NCL30185FLYGEVB, NCL30188FLYGEVB CIRCUIT BOARD FABRICATION NOTES 11. Size tolerance of plated holes: ±0.003 in.: 1. Fabricate per IPC−6011 and IPC6012. Inspect to non−plated holes ±0.002 in. IPA−A−600 Class 2 or updated standard. 2. Printed Circuit Board is defined by files listed in 12.
- Page 9 NCL30185FLYGEVB, NCL30188FLYGEVB FLYBACK TRANSFORMER SPECIFICATION www.onsemi.com...
- Page 10 NCL30185FLYGEVB, NCL30188FLYGEVB ECA PICTURES Figure 8. Top View Figure 9. Bottom View www.onsemi.com...
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Page 11: Test Procedure
NCL30185FLYGEVB, NCL30188FLYGEVB TEST PROCEDURE Equipment Needed Test Connections • 1. Connect the LED Load to the red(+) and black(−) AC Source – 90 to 305 V ac 50/60 Hz Minimum 500 W leads through the ammeter shown in Figure 10. - Page 12 NCL30185FLYGEVB, NCL30188FLYGEVB TEST DATA Figure 11. Power Factor over Line and Load Figure 12. THD over Line and Load www.onsemi.com...
- Page 13 NCL30185FLYGEVB, NCL30188FLYGEVB Figure 13. Efficiency over Line and Load @ Maximum Output Current Figure 14. Maximum Current Load Regulation over Line www.onsemi.com...
- Page 14 NCL30185FLYGEVB, NCL30188FLYGEVB Figure 15. 70% Load Regulation over Line (NCL30185FLYG only) Figure 16. 25% Load Regulation over Line (NCL30185FLYG only) www.onsemi.com...
- Page 15 NCL30185FLYGEVB, NCL30188FLYGEVB Figure 17. Minimum Load Regulation over Line (NCL30185FLYG only) Figure 18. Start Up with AC Applied 120 V Maximum Load www.onsemi.com...
- Page 16 NCL30185FLYGEVB, NCL30188FLYGEVB Figure 19. Start Up with AC Applied 230 V Maximum Load Figure 20. Conducted EMI Pre−compliance QP Data 150 kHz − 1 MHz www.onsemi.com...
- Page 17 NCL30185FLYGEVB, NCL30188FLYGEVB Figure 21. Conducted EMI Pre−compliance Peak Data 150 kHz − 30 MHz Microsoft Excel is a registered trademark of Microsoft Corporation. www.onsemi.com...
- Page 18 onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf.
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