Fairchild FAN9611 FAN9612 User's Manual
Summary
This evaluation board is an essential resource for electrical engineers developing high-efficiency Power Factor Correction (PFC) supplies. Built around the FAN9611/FAN9612 controllers, it facilitates interleaved dual Boundary-Conduction Mode (BCM) design, enabling robust, high-power solutions exceeding 800W while minimizing switching losses and physical size. The accompanying manual serves as a comprehensive technical guide, providing full schematics, specifications, detailed test procedures—including load transience and efficiency evaluation—and operational data needed to successfully implement advanced PFC designs.
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www.fairchildsemi.com
User Guide for
AN-8026: FAN9611 / FAN9612 400W 1-Layer Evaluation Board (FEB-301)
Featured Fairchild Product: FAN9611 / FAN9612
Direct questions or comments about this Evaluation Board to: “Worldwide Direct Support”
Fairchild Semiconductor.com
© 2009 Fairchild Semiconductor Corporation AN-8026 / FEB301_FAN9611 / FAN9612 • Rev. 0.0.4
Page Summary Contents For Fairchild FAN9611 FAN9612 User's Manual
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www.fairchildsemi.com User Guide for AN-8026: FAN9611 / FAN9612 400W 1-Layer Evaluation Board (FEB-301) Featured Fairchild Product: FAN9611 / FAN9612 Direct questions or comments about this Evaluation...
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www.fairchildsemi.com Table of Contents 1. Overview of the Evaluation Board ............................................................................................. 3 2. General Specification .....
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www.fairchildsemi.com The following user guide supports the FAN9611 / FAN9612 400W evaluation board for interleaved boundary-conduction mode power factor corrected supply. The user guide should be use...
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www.fairchildsemi.com 3. Test Procedures Before testing the board; DC voltage supply for VDD, AC voltage supply for line input, and DC electric load for output should be connected to the board properl...
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www.fairchildsemi.com Figure 1. Photograph of Tested Board © 2009 Fairchild Semiconductor Corporation 5 AN-8026 / FEB301_FAN9611 / FAN9612 • Rev. 0.0.4
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www.fairchildsemi.com 4. Schematic Figure 2. FAN9611 / FAN9612 400W Evaluation Board Schematic © 2009 Fairchild Semiconductor Corporation 6 AN-8026 / FEB301_FAN9611 / FAN9612 • Rev. 0.0.4
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www.fairchildsemi.com 5. Specification Approval Customer Fairchild Semiconductor P/N: TRN-0197 Date 08/04/2006 Version A Page 1/1 Dimension Unit: mm A 30 max B 5 max C 11 ref D 13 ref Black Glue E tub...
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www.fairchildsemi.com Customer Fairchild Semiconductor P/N: TRN-0256 Date 09/02/2009 Version A Page 1/4 Notes: 1. Pin 1,6,7,8,10,11,12 removed. 2. Add insulation tape *3 turns to fix core and bobbin. ...
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www.fairchildsemi.com Customer Fairchild Semiconductor P/N: TRN-0256 Date 09/02/2009 Version A Page 3/4 6. Boost Inductor Specification Figure 3. Boost Inductor in the FAN9611 / FAN9612 Evaluation Boa...
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www.fairchildsemi.com 6.1. Electrical Specification Inductance Test: at 1k Hz, 1V P(5-3): 200µH 5% DC Resistance test at TA = 25°C P(5-3): 62.44m maximum P(2-4): 196.7m maximum Hi-Pot Test:...
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www.fairchildsemi.com Customer Fairchild Semiconductor P/N: TRN-0256 Date 09/02/2009 Version A Page 3/4 Materials List: Component Material Manufacturer File# Phenolic PQ3230 1.Bobbin E59481(S) 94v-0,T...
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www.fairchildsemi.com 7. Bill of Materials Component Qty. Part # Reference JUMPER WIRE 0.8ψ(mm) 18 JP1~ JP4 JP6~JP19 Resistor 0805 0Ω+/-5% 1 JP20 Resistor 0805 39Ω+/-5% 2 R28 R29 Resistor 0805 1KΩ+/-5...
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www.fairchildsemi.com Bill of Materials (Continued) Component Qty. Part # Manufacturer Reference Ceramic Capacitor 103P 500V +80/-20% 1 C5 Electrolytic Capacitor 47µ 50V 105°C 1 LHK JACKCON C11 Electr...
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www.fairchildsemi.com Figure 4. PCB Layout Top Overlay Figure 5. PCB Layout Bottom Layer © 2009 Fairchild Semiconductor Corporation 14 AN-8026 / FEB301_FAN9611 / FAN9612 • Rev. 0.0.4
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www.fairchildsemi.com Figure 6. PCB Layout Bottom Overlay © 2009 Fairchild Semiconductor Corporation 15 AN-8026 / FEB301_FAN9611 / FAN9612 • Rev. 0.0.4
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www.fairchildsemi.com 8. Test Results 8.1. Startup Test Condition: 115VAC / 60Hz, 230VAC / 50Hz, no load and full load. Figure 7. 115VAC / 60Hz No Load Figure 8. 115VAC / 60Hz Full Load Note: 2. Only ...
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www.fairchildsemi.com 8.2. Normal Operation Test Condition: Inductor current of 115VAC / 60Hz, 230VAC / 50Hz full load. Figure 11. 115VAC / 60Hz Full Load Figure 12.115VAC / 60Hz Full Load Note: 4. Fi...
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www.fairchildsemi.com 8.3. Line and Load Transient Test Condition: 115VAC to 230VAC full load transient and 230VAC load transient. Figure 15. 230VAC to 115VAC Line Transient Figure 16.115VAC to 230VAC...
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www.fairchildsemi.com 8.4. Brown in/out Protection Test Condition: startup and shutdown when slowly increasing and decreasing the line voltage. Figure 19. Brownin Figure 20.Brownout Note: 8. Figure 19...
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www.fairchildsemi.com 8.5. Phase Management Test Condition: Change the output load to observe the phase shedding and adding. Figure 21. Phase-Shedding Figure 22.Zoom-In Note: 9. Figure 21 and Figure 2...
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www.fairchildsemi.com 8.6. Efficiency Test Condition: 115VAC / 60Hz and 230VAC / 50Hz efficiency. Ef fi ci cy ( Ef fi ci cy ( FEB301‐001, FAN9612 Efficiency vs. Load (115 VAC Input, 390 VDC Output, ...
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www.fairchildsemi.com 8.7. Harmonic Distortion and Power Factor Test Condition: Measure the harmonic and power factor at 115VAC / 60Hz and 230VAC / 50Hz output full load. Figure 29. 115VAC/60Hz, Outpu...
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www.fairchildsemi.com 0.98 0.96 0.94 0.92 115Vac/60Hz 0.9 0.88 230Vac/50Hz 0.86 0.84 0.82 0.8 Load(%) Figure 31. Measured Power Factor Table 2. Total Harmonic Distortion at Input Voltage of 115VAC and...
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www.fairchildsemi.com 9. References FAN9611 / FAN9612 — Interleaved Dual BCM PFC Controller AN-6086 — Design Consideration for Interleaved Boundary Conduction Mode (BCM) PFC Using FAN9611 / FAN9612 AN...
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 24 |
| File Size | 2.52 MB |
| Published | June 03, 2026 |
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Frequently Asked Questions
What is the primary function of this evaluation board?
It supports the FAN9611 / FAN9612 for interleaved dual Boundary-Conduction-Mode (BCM) PFC controller applications.
How does BCM improve power efficiency compared to CCM?
BCM offers inherent zero-current switching of the boost diodes, eliminating reverse-recovery losses and allowing for use of less expensive diodes.
What protective features are built into the FAN9611 / FAN9612 controller?
Built-in protections include over-voltage, over-current, open-feedback, under-voltage lockout, brownout, and redundant latching over-voltage.
Do I need to use an external charger for this setup?
The guide recommends using it with a suitable power source, but always consult the accompanying datasheets and application notes (like AN-6086) for full integration details.