Fairchild FEBFAN9611 S01U300A User manual

Manual is about: FAN9611 300W Interleaved Dual-BCM, Low-Profile, PFC Evaluation Board

Summary of FEBFAN9611 S01U300A

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    To learn more about on semiconductor, please visit our website at www.Onsemi.Com is now part of on semiconductor and the on semiconductor logo are trademarks of semiconductor components industries, llc dba on semiconductor or its subsidiaries in the united states and/or other countries. On semicondu...

  • Page 2: Febfan9611_S01U300A

    © 2012 fairchild semiconductor corporation 1 febfan9611_s01u300a • rev. 0.0.1 user guide for febfan9611_s01u300a evaluation board fan9611 300w interleaved dual-bcm, low-profile, pfc evaluation board featured fairchild product: fan9611 direct questions or comments about this evaluation board to: “wor...

  • Page 3: Table of Contents

    © 2012 fairchild semiconductor corporation 2 febfan9611_s01u300a • rev. 0.0.1 table of contents 1. Overview of the evaluation board ............................................................................................. 3 2. Key features ...........................................................

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    © 2012 fairchild semiconductor corporation 3 febfan9611_s01u300a • rev. 0.0.1 the following user guide supports the fan9611 300w evaluation board for interleaved boundary-conduction-mode power-factor-corrected supply. It should be used in conjunction with the fan9611 datasheet, fairchild application...

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    © 2012 fairchild semiconductor corporation 4 febfan9611_s01u300a • rev. 0.0.1 figure 1. Febfan9611_s01u300a, top view, 152mm x 105mm figure 2. Febfan9611_s01u300a, side view (low profile), cross section=18mm figure 3. Febfan9611_s01u300a, bottom view, 152mm x 105mm.

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    © 2012 fairchild semiconductor corporation 5 febfan9611_s01u300a • rev. 0.0.1 2. Key features 180° out-of-phase synchronization automatic phase disable at light load 1.8a sink, 1.0a source, high-current gate drivers transconductance (g m ) error amplifier for reduced overshoot voltage-mode control w...

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    © 2012 fairchild semiconductor corporation 6 febfan9611_s01u300a • rev. 0.0.1 3. Specifications this evaluation board has been designed and optimized for the conditions in table 1. Table 1. Electrical and mechanical requirements min. Typ. Max. V in_ac 80v 120v 265v v in_ac(on) 90v v in_ac(off) 80v f...

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    © 2012 fairchild semiconductor corporation 7 febfan9611_s01u300a • rev. 0.0.1 4. Test procedure before applying power to the febfan9611_s01u300a evaluation board; the dc bias supply for v dd , ac voltage supply for line input, and dc electronic load for output should be connected to the board as sho...

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    © 2012 fairchild semiconductor corporation 8 febfan9611_s01u300a • rev. 0.0.1 figure 5. Recommended test set-up all efficiency data shown in this document was taken using the test set up shown in figure 5 with the output voltage being measured directly at the output bulk capacitors (not through the ...

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    © 2012 fairchild semiconductor corporation 9 febfan9611_s01u300a • rev. 0.0.1 5. Schematic figure 6. Febfan9611_s01u300a 300w evaluation board schematic.

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    © 2012 fairchild semiconductor corporation 10 febfan9611_s01u300a • rev. 0.0.1 6. Boost inductor specification 750340834 from wurth electronics ( www.We-online.Com ) core: efd30 (a e =69mm 2 ) bobbin: efd30 inductance : 270 h figure 7. Boost inductor (l1, l2) in the evaluation board figure 8. Wurth...

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    © 2012 fairchild semiconductor corporation 11 febfan9611_s01u300a • rev. 0.0.1 7. Four-layer pcb and assembly images figure 9. Layer 1 – top layer figure 10. Layer 2 – internal layer.

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    © 2012 fairchild semiconductor corporation 12 febfan9611_s01u300a • rev. 0.0.1 figure 11. Layer 3 – internal layer figure 12. Layer 4 – bottom layer.

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    © 2012 fairchild semiconductor corporation 13 febfan9611_s01u300a • rev. 0.0.1 figure 13. Top assembly figure 14. Bottom assembly.

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    © 2012 fairchild semiconductor corporation 14 febfan9611_s01u300a • rev. 0.0.1 8. Bill of materials (bom) item qty. Reference part number value description manufacturer package 1 2 c1, c6 0.22µf cap, smd, ceramic, 25v, x7r std 1206 2 1 c2 390nf cap, smd, ceramic, 25v, x7r std 805 3 2 c3, c13 15nf ca...

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    © 2012 fairchild semiconductor corporation 15 febfan9611_s01u300a • rev. 0.0.1 item qty. Reference part number value description manufacturer package 30 2 q2, q4 zxtp25020dfl transistor, pnp, 20v, 1.5a zetex sot-23 31 1 q6 2n7002 mosfet, nch, 60v, 300ma philips sot-23 32 2 r1-2 46.4kΩ res, smd, 1/8w...

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    © 2012 fairchild semiconductor corporation 16 febfan9611_s01u300a • rev. 0.0.1 9. Inrush current limiting the evaluation board includes an inrush current limiting circuit comprised of the highlighted components shown in figure 15. Figure 15. Inrush current limiting circuit since the inrush current l...

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    © 2012 fairchild semiconductor corporation 17 febfan9611_s01u300a • rev. 0.0.1 m2: ac line current (5a/div), ch3: ac line current (5a/div), time (50ms/div) figure 16. Full-load startup at 115v ac table 4. Inrush current limiting circuit effectiveness comparison input line voltage output power peak l...

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    © 2012 fairchild semiconductor corporation 18 febfan9611_s01u300a • rev. 0.0.1 10. Test results 10.1. Startup figure 17 and figure 18 show the startup operation at 115v ac line voltage for no-load and full-load condition, respectively. Due to the closed-loop soft-start, almost no overshoot is observ...

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    © 2012 fairchild semiconductor corporation 19 febfan9611_s01u300a • rev. 0.0.1 figure 19 and figure 20 show the startup operation at 230v ac line voltage for no-load and full-load conditions, respectively. Due to the closed-loop soft-start, almost no overshoot is observed for no-load startup and ful...

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    © 2012 fairchild semiconductor corporation 20 febfan9611_s01u300a • rev. 0.0.1 10.2. Steady-state operation figure 21 and figure 22 show the two inductor currents and the sum of the two inductor currents operating at full load for 90v ac and 230v ac line voltage. The sum of the inductor currents has...

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    © 2012 fairchild semiconductor corporation 21 febfan9611_s01u300a • rev. 0.0.1 ch1: drv1 (20v/div), ch2: vds(q3) (100v/div) ch3: zcd1 (1v/div), ch4: inductor l2 current (5a/div) figure 23. Zero valley switching at full load, 115v ac ch1: drv1 (20v/div), ch2: vds(q3) (100v/div) ch3: zcd1 (1v/div), ch...

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    © 2012 fairchild semiconductor corporation 22 febfan9611_s01u300a • rev. 0.0.1 ch1: drv1 (20v/div), ch2: vds(q3) (100v/div) ch4: inductor l2 current (5a/div) figure 25. Zoom of valley switching at full load, 230v ac ch1: fan9611, pin 16 (100mv/div), ch2: fan9611, pin 15 (100mv/div) ch3: inductor l2 ...

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    © 2012 fairchild semiconductor corporation 23 febfan9611_s01u300a • rev. 0.0.1 ch1: inductor l1 current (2a/div), ch2: inductor l2 current (2a/div) figure 27. Inductor current waveforms at 360w, 85v ac , over-current operation ch1: inductor l1 current (5a/div), ch2: inductor l2 current (5a/div) ch3:...

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    © 2012 fairchild semiconductor corporation 24 febfan9611_s01u300a • rev. 0.0.1 10.3. Line transient figure 29 and figure 30 show the line transient operation and minimal effect on output voltage due to the line feed-forward function. When the line voltage changes from 230v ac to 115v ac , about 20v ...

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    © 2012 fairchild semiconductor corporation 25 febfan9611_s01u300a • rev. 0.0.1 10.4. Load transient figure 31 and figure 32 show the load-transient operation. When the output load changes from 100% to 0%, 20v (5% of nominal output voltage) voltage overshoot is observed. When the output load changes ...

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    © 2012 fairchild semiconductor corporation 26 febfan9611_s01u300a • rev. 0.0.1 ch1: rectified line voltage (100v/div), ch2: output voltage (20v/div, ac), ch3: comp voltage (5v/div), ch4: line current (5a/div), time (50ms/div) figure 33. Load transient response at 230v ac (full load  no load) ch1: r...

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    © 2012 fairchild semiconductor corporation 27 febfan9611_s01u300a • rev. 0.0.1 10.5. Brownout protection figure 35 shows the startup operation while slowly increasing the line voltage. The power supply starts up when the line voltage reaches around 90v ac . Figure 36 shows the shutdown operation whi...

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    © 2012 fairchild semiconductor corporation 28 febfan9611_s01u300a • rev. 0.0.1 10.6. Phase management figure 37 and figure 38 show the phase-shedding waveforms. As observed, when the gate drive signal of channel 2 is disabled, the duty cycle of channel 1 gate drive signal is doubled to minimize the ...

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    © 2012 fairchild semiconductor corporation 29 febfan9611_s01u300a • rev. 0.0.1 figure 39 and figure 40 show the phase-adding waveforms. As observed, just before the channel 2 gate drive signal is enabled, the duty cycle of channel 1 gate drive signal is reduced by 50% to minimize the line current gl...

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    © 2012 fairchild semiconductor corporation 30 febfan9611_s01u300a • rev. 0.0.1 10.7. Efficiency figure 41 and figure 42 show the measured efficiency of the 300w evaluation board with r mot =60.4kΩ at input voltages of 115v ac and 230v ac . The phase management threshold on the test evaluation board ...

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    © 2012 fairchild semiconductor corporation 31 febfan9611_s01u300a • rev. 0.0.1 figure 45 and figure 46 show a direct comparison of light-load efficiency benefit gained when increasing the mot resistor. For r mot =120kΩ, the phase threshold is adjusted upward from 18% to approximately 30% of nominal ...

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    © 2012 fairchild semiconductor corporation 32 febfan9611_s01u300a • rev. 0.0.1 10.8. Harmonic distortion and power factor figure 47 and figure 48 compare the measured harmonic current with en61000 class d and class c, respectively, at input voltages of 115v ac and 230v ac . Class d is applied to tv ...

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    © 2012 fairchild semiconductor corporation 33 febfan9611_s01u300a • rev. 0.0.1 10.9. Emi en55022 cispr, class b figure 51. 115v ac , line figure 52. 115v ac , neutral figure 53. 230 vac , line figure 54. 230v ac , neutral 150 khz 30 mhz 1 pk maxh 2 av maxh tdf 6db dbµv dbµv rbw 9 khz mt 10 ms preamp...

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    © 2011 fairchild semiconductor corporation 34 febfan9611_s01u300a • rev. 0.0.1 11. References [1] fan9611 / fan9612 — interleaved dual bcm pfc controllers [2] an-6086 — design considerations for interleaved boundary-conduction mode pfc using fan9611 / fan9612 12. Ordering information orderable part ...

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