Seminario VIPerPlus - STMicroelectronics

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Seminario VIPerPlus - STMicroelectronics

  1. 1. ST Off-Line Power SupplySeptember 2011
  2. 2. Agenda ST brief Introduction Offline Common configurations  SMPS Fundamentals  SMPS Common Configurations New VIPer+ Family  Roadmap  Products  Detailed description New products Magnetic Components Lunch Layout Recommendations Design Tools 2
  3. 3. ST brief introduction
  4. 4. Market Segments 30 % 38% Automotive, Consumer, Industrial and Computer and Wireless Multisegment Sector Communication 31 % (“IMS”)50/50 JV with Ericsson Infrastructure (“ACCI”) Home Computer & Automotive Analog, Microcontrollers, Entertainment Communication Products Power and Memories and Major Product Lines & Displays Infrastructure Group MEMS Smartcards Products Wireless: Consumer: Computer: Automotive: Industrial: Market Position* #2 #2 in Set Top Box #2 (HDD & Printers) #3 #1 Major Customers * Source: iSuppli-2008 rankings, ST and ST-Ericsson 4
  5. 5. 2010 overall ranking Revenue Revenue Revenue 2009 2010 2009 2010 Company Name Percent Percent Cumulative Rank Rank Revenue($) Revenue($) Change of Total Percent 1 1 Intel 32,187 40,394 25.5% 13.3% 13.3% 2 2 Samsung Electronics 17,496 27,834 59.1% 9.2% 22.4% 3 3 Toshiba 10,319 13,010 26.1% 4.3% 26.7% 4 4 Texas Instruments (1) 9,671* 12,994 34.4% 4.3% 31.0% 9 Renesas Electronics (2) 5,153 5 11,893* 130.8% 3.9% 34.9% 12 NEC Electronics 4,384 7 6 Hynix 6,246 10,380 66.2% 3.4% 38.3% 5 7 STMicroelectronics 8,510 10,346 21.6% 3.4% 41.7% 13 8 Micron Technology (3) 4,293* 8,876* 106.8% 2.9% 44.6% 6 9 Qualcomm 6,409 7,204 12.4% 2.4% 47.0% 14 10 Broadcom (4) 4,278 6,682* 56.2% 2.2% 49.2% 15 11 Elpida Memory 3,948 6,446 63.3% 2.1% 51.3% 8 12 AMD 5,207 6,345 21.9% 2.1% 53.4% 11 13 Infineon Technologies (5) 4,456* 6,319 41.8% 2.1% 55.5% 10 14 Sony (6) 4,468* 5,224 16.9% 1.7% 57.2% 18 15 Panasonic Corporation (7) 3,243* 4,946 52.5% 1.6% 58.8% 17 16 Freescale Semiconductor (8) 3,402* 4,357 28.1% 1.4% 60.3% 19 17 NXP (9) 3,240 4,028* 24.3% 1.3% 61.6% 23 18 Marvell Technology Group 2,572 3,633 41.3% 1.2% 62.8% 16 19 MediaTek 3,551 3,553 0.1% 1.2% 64.0% 20 20 nVidia 2,826 3,196 13.1% 1.1% 65.0% Top 20 Companies 141,475 197,660 39.7% 65.0% All Others 88,719 106,415 19.9% 35.0% Total Semiconductor 230,194 304,075 32.1% 100.0%Source: iSuppli, March 11th 2011(x) * refers to M&A. Details provided on separate page. 5
  6. 6. 2010 ranking on ST SAM 2009 2010 Revenue Revenue Revenue 2009 2010 Revenue Revenue Percent Percent Cumulative Rank Rank Company Name ($) ($) Change of Total Percent 1 1 Texas Instruments 9,671 12,994 34.4% 7.3% 7.3% 5 Renesas Electronics 5,146 2 11,469 122.9% 6.4% 13.8% 9 NEC Electronics 4,119 2 3 STMicroelectronics 8,093 9,778 20.8% 5.5% 19.3% 4 4 Intel 5,721 7,233 26.4% 4.1% 23.3% 3 5 Qualcomm 6,409 7,204 12.4% 4.1% 27.4% 8 6 Broadcom 4,278 6,682 56.2% 3.8% 31.1% 7 7 Infineon Technologies 4,456 6,319 41.8% 3.6% 34.7% 6 8 Toshiba 5,053 5,659 12.0% 3.2% 37.9% 11 9 Samsung Electronics 3,279 4,348 32.6% 2.4% 40.3% 12 10 NXP 3,235 4,024 24.4% 2.3% 42.6% 18 11 Panasonic Corporation 2,428 3,647 50.2% 2.1% 44.6% 10 12 MediaTek 3,551 3,553 0.1% 2.0% 46.6% 17 13 Marvell Technology Group 2,458 3,472 41.3% 2.0% 48.6% 15 14 Freescale Semiconductor 2,537 3,204 26.3% 1.8% 50.4% 13 15 nVidia 2,826 3,196 13.1% 1.8% 52.2% 16 16 Fujitsu Semiconductor Limited 2,537 3,059 20.6% 1.7% 53.9% 14 17 Sony 2,810 2,999 6.7% 1.7% 55.6% 20 18 Analog Devices 2,091 2,862 36.9% 1.6% 57.2% 19 19 ROHM Semiconductor 2,286 2,776 21.4% 1.6% 58.7% 23 20 Maxim Integrated Products 1,657 2,367 42.8% 1.3% 60.1% Top 20 Companies 80,522 106,845 32.7% 60.1% All Others 59,587 70,997 19.1% 39.9% Total Semiconductor 140,109 177,842 26.9% 100.0%SAM = TAM – DRAM – Flash – MPU - Opto Source: iSuppli, March 11th 2011 6
  7. 7. Manufacturing Locations France Italy (Crolles I & II, Rousset, Tours) (Agrate, Catania 6”& 8”) China Morocco (Shenzhen, Longgang) Malta Philippines Malaysia 2009 sales : US$ 8.51 billion Singapore 2010 sales : US$ 10.346 billion Approx. 53,000 employees in the group Front-end fabs 15 main production sites Back-end fabs Advanced R&D centers in 10 countries
  8. 8. Innovation Investment 8
  9. 9. SMPS Fundamentals 9
  10. 10. Power Supply in Appliances Power ranges from 3W to 15W Non-isolated topologies are used where there are no external electrical connection. Isolated topologies are used where there is a possibility of user touching electrical points. Cost and simplicity are key drivers. 10
  11. 11. BUCK 11
  12. 12. Topology S1 L1 V2 V1 + + IL S2 12
  13. 13. Topology Applied IIN L VS IIND Cout IGND 13
  14. 14. Buck topology – ON time L IIND OnVswIMIDIL 14
  15. 15. Buck topology – Off time L IIND OffVswIMIDIL 15
  16. 16. Current/Voltage Waveforms S1 Vsw L1 IS1 V2V1 + + IL IS2 S2 IL 16
  17. 17. Buck Example 17
  18. 18. Buck/Boost, Negative Output VD ISW ID VOUT VIN IL RO 18
  19. 19. Negative Output Example 19
  20. 20. Continuous versus Discontinuous Continuous refers to continuous current in the inductor, there is always positive current flowing in the inductor. Inductor current Load Current 20
  21. 21. Continuous versus Discontinuous Discontinuous refers to the inductor current going to zero during every clock cycle. Inductor current Load Current 21
  22. 22. Continuous versus Discontinuous Discontinuous mode has higher peak currents. Higher peak current lowers the efficiency. Higher peak current increases the EMI energy. 22
  23. 23. EMI considerations for the Buck EMI stands for ElectroMagnetic Interference and is the result of noise generated by switching devices. EMI has two components, radiated and conducted. Radiated refers to the EMI that is “broadcast” into the air by the module. Conducted refers to EMI on the power line emitted by the module. 23
  24. 24. EMI Considerations for the Buck The buck has one switching point, the common point of the two switches and the inductor. A simple RC snubber at this switching point is the most common method of reducing EMI (both conducted and radiated). 24
  25. 25. Reduction of EMI IIN Snubber L VS IIND Cout IGND 25
  26. 26. Effect of Snubber on VS(t) VS Ringing causes big EMI numbers No snubber Snubber lows frequency and amplitude of ringing With Snubber 50 100 150 T (ns) 26
  27. 27. FLYBACK 27
  28. 28. Topology 28
  29. 29. Topology Applied IP IS VIN + + VP VS VD Note: NP = # of primary turns NS = # of secondary turns 29
  30. 30. Transformer relationship I1 I2 N1 V1 I2 N2 V2 I1 + + V1 N1 N2 V1 2 N1 L1 N2 2 L2 Where NX = number of turns LX = inductance of winding 30
  31. 31. Flyback topology – ON time D1 + 1 + 4 - + IQ1 C2 Output DCInput DC C1 - + Q1 2 T1 3 - - IQ1 ON OFF ON OFF 1 2 P1 T LP I Q1PK f SW VQ1 2 ID1
  32. 32. Flyback topology – OFF time D1 + 1 - 4 + + ID1 C2 Output DCInput DC C1 + - Q1 2 T1 3 - - IQ1 ON OFF ON OFF VQ1 ID1
  33. 33. Charge and discharge of the core I V IN L P VOUT L S t 33
  34. 34. Drain Switching Waveforms (DM) 34
  35. 35. Drain Switching Waveforms (CM) 35
  36. 36. Diode Switching Waveforms 36
  37. 37. Current/Voltage Waveforms (discontinuous) VIN+VO*NP/NS VIN VD t IPEAK T IP IS VIN VP -VO*NP/NS VOUT VS VIN * NS/NP 37
  38. 38. Current/Voltage Waveforms (continuous) VIN+VO*NP/NS VIN VD IPEAK IP IS VIN VP -VO*NP/NS VOUT VS VIN * NS/NP 38
  39. 39. Quasi ResonantVIN+VO*NP/NS VIN+VO*NP/NS VIN VIN VD t VD t IPEAK T IP IS IPEAK VIN T IP VP -VO*NP/NS VOUT VS IS VIN * NS/NP VIN VP Key difference between a discontinuous mode flyback and QR flyback: -VO*NP/NS 1) There is no dead time in QR flyback. 2) QR flyback is a variable frequency VOUT scheme VS VIN * NS/NP 39
  40. 40. EMI considerations for a Flyback There are two commutation point in a flyback  The primary side power switch.  The secondary side diode switch EMI is created only if there is a high frequency power dissipation event. For DM, the current is ~zero when the switch turns on and the diode turns off. Most of the EMI is generated when the switch turns off and the diode turns on (the current is highest). 40
  41. 41. Reducing EMI High current tracks should be as short as possible Area enclosed by high current loops, as indicated in red should be minimized It is recommended to place high current tracks close each to other to compensate magnetic field and reduce parasitic inductance Use snubber to decrease dV/dt. Snubbers should be placed with minimum trace lengths Increase capacitance between primary and secondary side of the transformer. Higher Leakage inductance helps!! Connect the VIPer Drain to the deepest primary winding 41
  42. 42. Reducing EMI VIN + + VP VS 42
  43. 43. Auxiliary Supply VOUT = < 40V VIN = 160V VAUX = 12V 43
  44. 44. Why Auxiliary Supply (1/2) The PWM control loop uses 10V/5mA for power. If the power supply is the input bus (rectified line voltage) and VDD is ~10V then the PWM loop will draw (160V-10V)*5mA=7.5W The secondary output can’t be used because galvanic isolation is required Auxiliary supply allows low power consumption and galvanic isolation. Cost is low. 44
  45. 45. Why Auxiliary Supply (1/2) Transformer action will also apply between the secondary voltage and the auxiliary voltage. Fault tolerence when reference/opto fails: No overvoltage seen at output. Short circuit behavior: with aux winding the max output power is limited, no need to oversize secondary side components. 45
  46. 46. Flyback Example 46
  47. 47. Buck Vs Flyback Buck Flyback Lower cost  Higher cost Less components  Custom transformer Designed based on  Designed based on output current output power Differential EMI critical  Common mode EMI Outputs must be critical inaccessible to users  Users can touch output Single output commonly connectors or output power stages  Multiple outputs possible 47
  48. 48. Viper Family 48
  49. 49. Solutions for low-medium power SMPS  The best energy saving approach  Minimized stand-by power  High efficiency  The most reliable approach  Avalanche rugged power section  Integration of advanced protections  Thermal shutdown sensor located on power section  The most flexible approach  Modular product: controller + power section  Packages’ design and development  The most profitable partner  Continuous products’ innovation  Technical support (competence centers, documentations, software)  Excellence in quality and supply chain 49
  50. 50. Solutions for low-medium power SMPS Primary Controllers Secondary Controllers HV Converters Sync. CC/CV Rectification REGULATE Controller + MOSFET RECTIFY Efficiently Constant Voltage & CurrentAC VIPer Plus. (optional) DC Replacement of the (Adapters, diode Chargers,..) DELIVER the power to Transformer’s Primary 50
  51. 51. New VIPer Plus familyGND / SOURCE DRAIN + Technology VDD DRAIN + Functionalities VIPer+ + Protections CONT / Lim FB Function = VIPer+ 51
  52. 52. + Technology NEW 800V Power MOSFETGND / SOURCE DRAIN DRAIN VDD Out Out VDD DRAIN On-Off On/Off VIPER17 BR Gate Gate CONT CONTROL CONT Sense Sense FB Tmp1 Tmp1 Gnd FB Gnd1 Gnd BR SOURCE NEW BCD6 controller technology 52
  53. 53. + Functionalities Current mode converter with ADJUSTABLE IDLIM set point Frequency  Fixed (60kHz or 115kHz) with JITTERING for EMI reduction  Quasi Resonant operation with Frequency Fold-back function (x5) SOFT START UP: IDLIM increased cycle by cycle BURST MODE in low load condition with IDLIM fixed ADJUSTABLE IDLIM set point STAND BY consumption < 50 mW 53
  54. 54. + Protections Over voltage protection (OVP) AUTO RESTART 2nd over current protection (2nd OCP) MODE after every fault Over load protection (OLP) condition Over temperature protection + hysteresis (OTP) Brown out protection Max Duty Cycle: 70% 54
  55. 55. SMPS topology and main applications High features - Isolated Fly-back VIPer17 VIPer27 VIPer37 Auxiliary PS, STB, DVD, Games console, LCD TV, major appliances, Motor control, Power Meter, Chargers, Adapters, PC Stand-by Quasi Resonant - Isolated Fly-back VIPer15 VIPer25 VIPer35 Auxiliary PS, STB, DVD, Games console, LCD TV, major appliances, Motor control, Power Meter, Chargers, Adapters, PC Stand-by VIPer28 VIPer38 Peak Power Isolated Fly-back DVD, Printer, ATX Non Isolated converters VIPer06 VIPer16 VIPer26 Home appliances, Small appliances, Lighting, Power meter DIP7 DIP7 DIP7 Basic features – Isolated Fly-back SDIP10 Auxiliary PS, STB, DVD, Games console, LCD TV, SSO10 SO16N SO16N major appliances, Motor control, Power Meter, Chargers, Adapters, PC Stand-by 1W……. …….15W(1) / 30W(2) 55
  56. 56. Main features Basic features VIPer x7 VIPer x8 VIPer x5 VIPer x6 PWM operations Fixed Frequency (60 or 115kHz) with Fixed Frequency Quasi Resonant (301 or 60 or 115kHz) with settable IDLIM Jittering with Jittering 800V Extra Power Simplified Avalanche Rugged Brown out Brown out Non Isolated Timer loop Burst Mode Over Voltage No auxiliary Over Temperature Over Load Delay Feedback shut down disconnection Soft start 2° OCP Auto restart (fixed time) Latched a Auto restart Feedback disconnection (option only for VIPer06) Latched OVP (option for VIPer25LLD)(1) 30kHz available only for VIPer06 56
  57. 57. HV Converter Portfolio + Roadmap 730V 30 18 5.5 3 1 620V 1 W (3) VIPer22 VIPer12 VIPer50 VIPer100 VIPer53 VIPer20 30 24 7 4.5 3 1 800 V Av.Rug. 30 mW(3) CTRL VIPer17 VIPer27 VIPer37 VIPer x7 30 mW(3) CTRL VIPer15 VIPer25 VIPer x5 30 mW(3) CTRL VIPer28 VIPer x8 30 mW(3) CTRL VIPer06 VIPer16 VIPer26 VIPer x6 4W(1) / 8W(2) 6W(1) / 12W(2) 12W(1) / 24W(2) 15W(1) / 30W(2) 20W(1) / 35W(2) 30W(1) / 50W(2) SSO10 & DIP7 SO16N & DIP7 SO16N & DIP7 SDIP10(1) Open frame, VIN = 85 - 264VAC , under development, SOP planned within 2011(2) Open frame, VIN = 230VAC ±20%,(3) Achievable consumption at no load with Vin 264VAC 57
  58. 58. Tools availability Training Application Evaluation e-Design Datasheet Spreadsheet Spice Model (slides) Notes Boards StudioVIPer17 Yes Yes Yes Yes Yes Yes YesVIPer27 Yes Yes Yes Yes Yes Yes Yes Under Under Under UnderVIPer37 Preliminary Yes development development development development -- Under Under Under UnderVIPer06 Preliminary Yes development development development development --VIPer16 Yes Yes Yes Yes Yes Yes YesVIPer26 Yes Yes Yes Yes Yes Yes -- Under UnderVIPer15 Yes Yes Yes Yes development development -- UnderVIPer25 Yes Yes Yes Yes development Yes -- Under --VIPer28 Yes Yes Yes Yes Yes development . 58
  59. 59. Evaluation Boards and ANsVIPer 17 Order code Topology Input VAC Output Output Relevant AN Reference IsolatedVIPER17LN STEVAL-ISA058V1 85-265 5W 5V / 1A AN2864 Stand-by PSU Fly-back IsolatedVIPER17HN STEVAL-ISA060V1 85-265 6W 12V / 0.5A AN2753 Stand-by PSU Fly-back Isolated Cell PhoneVIPER17HN EVLVIP17-5WCHG 90-265 5W 5V / 1A AN2840 Fly-back Battery Charger IsolatedVIPER17HN STEVAL-ILL017V1 220 ±20% 3.5W 7V / 500mA AN2811 Led Driver Fly-back Isolated 5V / 500mAVIPER17HN STEVAL-ISA062V1 85-265 5.5W AN2934 General Purpose Fly-back 12V / 250mA Isolated High PowerVIPER17HN EVLVIP27-7WLED 100-264 3.5W 10V / 350mA AN3212 Fly-back Factor Led DriverVIPer 27 Order code Topology Input VAC Output Output Relevant AN Reference IsolatedVIPER27LN EVLVIP27L-12WS 85-265 12W 5V / 2.4A AN2929 Auxiliary PSU Fly-back IsolatedVIPER27HN EVLVIP27H-12SB 85-265 11W 5V / 2.2A AN3011 Auxiliary PSU Fly-back Isolated High PowerVIPER27HN EVLVIP27-7WLED 100-264 7W 10V / 750mA AN3212 Fly-back Factor Led DriverVIPer 37 Order code Topology Input VAC Output Output Relevant AN Reference IsolatedVIPER37xx TBD 85-265 5V / 3A Fly-back IsolatedVIPER37xx TBD 85-265 12V / 1.3A Fly-back 59
  60. 60. Evaluation Boards and ANsVIPer 06 Order code Topology Input VAC Output Output Relevant AN Reference 12V / 300mAVIPER06LS Non isolated Under development 85-265 option TBD Home applianceVIPER06HS Fly-back ( 5V /800mA) Isolated Under development 85-265 TBD TBD Home Appliance Fly-backVIPer 16 Order code Topology Input VAC Output Output Relevant AN Reference Non isolated 12V / 5V (postVIPER16LN STEVAL-ISA010V1 85-500 1.8W AN2872 Power Meter buck converter reg.) / 150mA Non Isolated AN3028VIPER16LN EVLVIP16L-4WFN 85-265 4.5W 16V / 280mA Home appliance Fly-back draft Non Isolated - 5V / 400mA,VIPER16LN STEVAL-ISA071V1 85-265 4W UM0920 Home appliance Fly-back +7V / 160mA Isolated Home applianceVIPER16LN EVLVIP16L-5WFL 85-265 5W 12 / 350mA databrief Fly-back Auxilairy PSU Non Isolated 12V / 5V (post Small HomeVIPER16LD EVLVIP16LD-1W5 85-265 1.8W databrief buck converter reg.) / 150mA Appliance Non IsolatedVIPER16HN EVLVIP16H-4WFN 85-265 4.5W 16V / 280mA databrief Home appliance Fly-backVIPer 26 Order code Topology Input VAC Output Output Relevant AN Reference PrimaryVIPER26LD STEVAL-ISA081V1 Regulation 85-265 12.5W 12V, 3.3V / 1A UM0984 Home appliance Fly-back 60
  61. 61. Evaluation Boards and ANsVIPer 15 Order code Topology Input VAC Output Output Relevant AN Reference Quasi- Resonant AN3160VIPER15LN STEVALVIP15L-6W 90-265 VAC 6W 12V, 500mA Auxiliary PSU Isolated draft Fly-back Quasi- ResonantVIPER15LN EVLVIP15L-5WSB 90-265 VAC 5W 5V, 1A TBD Auxiliary PSU Isolated Fly-backVIPer 25 Order code Topology Input VAC Output Output Relevant AN Reference Quasi- Auxiliary PSU Resonant AN3286VIPER25LN EVLVIP25L-10WSB 85-265 VAC 10W 5V, 2A STB Isolated draft Power Meter Fly-backVIPer 28 Order code Topology Input VAC Output Output Relevant AN Reference Isolated Auxiliary PSUVIPER28LN EVLVIPER28L-10W 85-265 VAC 12W 5V, 2.4A AN2950 Fly-back Printer 61
  62. 62. VIPer06 / 16 /26 Main Features Pin description 800V, avalanche rugged power MOSFET PWM controller with drain current limit IDlim Adjustable current limit,IDlim Fixed frequency with Jittering high performance for stand-by & efficiency No need of auxiliary winding Automatic auto restart after faults Hysteretic thermal shutdown Direct feedback for non isolated SMPS Replacement of capacitive power supply  GND Open loop protection controller ground / power MOSFET Source MAIN PARAMETERS Power MOSFET CONTROLLER  VDD (SuperMESH) Main parameters (BCD6S) controller supply voltage / ICHARGE output current Break down voltage [V] 800  LIM Current limit set-up, IDlim . RDSon [Ohm] 30 /24 / 7  FB VDD [V] 9 ÷ 23 direct voltage feedback (in case of non isolated SMPS) FOSC [KHz] 30 or 60 or 115  COMP Max IDlim [mA] 420 / 740 Compensation network. RTHJ-A [°C/W] (1) 80 Current loop feedback in case of isolated SMPS  N.A. POUT [W] @ 85-265 VAC 4 / 6 / 12 Not Available for user. (It can be connected to GND)(1) Package SO16N, 100mm2 of Cu  N.C.(2) Open Frame Not Connected 62
  63. 63. Schematics with VIPerx6 FLY-BACK / Fixed Freq. VIPer06 / 16 / 26 NON ISOLATED Simplified feedback loop R3, R4 R1 D1 L1 T1 D3 VOUT+ No Need auxiliary winding R2 C6 + C4 C5 C1 + C2 + D2 GND Low cost EMI filter C1, C2, L1- VIPER x6 DRAIN R3 Low cost clamp components Controller FB R2,D2,C6 GND COMP LIM VDD R4 Short circuit protection C3 C4 (automatic restart) Default current limit 400mA / 700mA 63
  64. 64. Schematics with VIPerx6 FLY-BACK / FF VIPer06 / 16 / 26 NON ISOLATED Simplified feedback loop R3, R4 R1 D1 L1 T1 D3 VOUT+ No Need auxiliary winding R2 C6 + C4 C5 C1 + C2 + D2 GND Low cost EMI filter C1, C2, L1- VIPER x6 DRAIN R3 Low cost clamp components Controller FB R2,D2,C6 GND COMP LIM VDD R4 Short circuit protection C3 C4 (automatic restart) RLIM Current limit set-up - RLIM <400mA or <700mA 64
  65. 65. Schematics with VIPerx6 FLY-BACK / FF VIPer06 / 16 / 26 NON ISOLATED Simplified feedback loop R3, R4 R1 D1 L1 T1 D3 VOUT+ No Need auxiliary winding R2 C6 + C4 C5 C1 + C2 + D2 GND Low cost EMI filter C1, C2, L1- VIPER x6 R5 DRAIN R3 D4 Low cost clamp components Controller FB R2,D2,C6 GND COMP LIM VDD R4 Short circuit protection C3 C4 (automatic restart) Feedback disconnection (automatic restart) Default current limit 400mA / 700mA VOUT ≥ 12 V Stand-by optimization , 30 mW D4, R5 65
  66. 66. Schematics with VIPerx6 FLY-BACK / FF VIPer06 / 16 / 26 NON ISOLATED Simplified feedback loop R3, R4 R1 D1 L1 + Need auxiliary winding R2 C6 C4 + AUXAC IN C1 + C2 + D2 T1 D3 VOUT Low cost EMI filter + C1, C2, L1 - C5 GND Low cost clamp components VIPER x6 R2,D2,C6 R5 R3 DRAIN D4 Controller FB Short circuit protection (automatic restart) GND COMP LIM VDD R4 C3 C4 Feedback disconnection (automatic restart) Default current limit 400mA / 700mA VOUT < 12 V Stand-by optimization , 30 mW D4, R5
  67. 67. Schematics with VIPerx6 FLY-BACK / FF VIPer06 / 16 / 26 PRIMARY REGULATION Simplified feedback loop R3, R4 R1 D1 L1 + Need auxiliary winding R2 C6 C4 + AUXAC IN C1 + C2 + D2 T1 D3 VOUT Low cost EMI filter + C1, C2, L1 - C5 GND R5 D4 Low cost clamp components VIPER x6 R2,D2,C6 DRAIN R3 Controller FB Short circuit protection (automatic restart) GND COMP LIM VDD R4 C3 C4 Feedback disconnection (automatic restart) Default current limit 400mA / 700mA No need the optocoupler Stand-by optimization , 30 mW D4, R5
  68. 68. Schematics with VIPerx6 FLY-BACK / FF VIPer06 / 16 / 26 ISOLATED R1 D1 L1 Minimum components count + R2 C6 C1 C2 No Need auxiliary windingAC IN + + D2 T1 D3 VOUT C4 + - C5 Low cost EMI filter GND C1, C2, L1 R6 D4 C6 VIPER x6 DRAIN Low cost clamp components FB R2,D2,C6 Controller GND COMP LIM VDD Short circuit protection C4 (automatic restart) R5 R3 IC3 Default current limit R4 C7 400mA / 700mA IC2 C3 R4 68
  69. 69. Schematics with VIPerx6 FLY-BACK / FF VIPer06 / 16 / 26 ISOLATED R1 D1 L1 Minimum components count + R2 C6 C2 Need auxiliary windingAC IN C1 + + D2 T1 D3 C4 + AUX VOUT + - C5 Low cost EMI filter GND C1, C2, L1 R6 D4 C6 VIPER x6 DRAIN Low cost clamp components FB R2,D2,C6 Controller GND COMP LIM VDD Short circuit protection C4 (automatic restart) R5 R3 IC3 Feedback disconnection R4 C7 (automatic restart) IC2 Default current limit C3 R4 400mA / 700mA Stand-by optimization , 30 mW AUX + D4, R5 69
  70. 70. VIPer17 / 27 / 37 Main Features Pin description 800V, avalanche rugged power MOSFET * PWM controller with drain current limit, IDlim. Adjustable current limit, IDlim Fixed Frequency with Jittering High performance for stand-by & efficiency Integrated protections: OVP, OLP, high OCP Automatic auto restart after fault Hysteretic thermal shutdown Brown-out: minimum input voltage is settable  GND Power MOSFET CONTROLLER controller ground / power MOSFET Source MAIN PARAMETERS Main parameters (SuperMESH) (BCD6S)  VDD Break down voltage [V] 800 controller supply voltage / ICHARGE output current  CONT RDSon [Ohm] 24 / 7 / 4.5 OVP set-up, IDLIM set-up. VDD [V] 9 ÷ 23  FB current loop feedback FOSC [KHz] 60 or 115  BR * Max IDlim [mA] 420 / 740 / 1050 brown out set-up RTHJ-A [°C/W] (1) 50  N.A. Not Available for user. (It can be connected to GND) POUT [W] @ 85-265VAC 6 / 12 / 15  N.C.(1) Package SO16N and 100mm2 of Cu Not Connected(2) Open Frame * BR pin has the position 10 for VIPER17LD/HD (SO16N package) 70
  71. 71. Schematics with VIPerx7 FLY-BACK / FF VIPer17 / 27 / 37 ISOLATED L1 30mW Stand-by F R2 C6 Minimum components countAC IN C1 + C2 + D2 T1 D3 NTC VOUT + C5 Low cost EMI filter GND C1,C2, L1 R6 D4 C6 VIPER x7 DRAIN Low cost clamp components R2,C6,D2 VDD Controller Default current limit GND BR CONT FB C4 400mA / 700mA / 1000mA R5 R3 Short circuit protection IC3 No need ext components R4 C7 IC2 2nd Over Current protection C3 R4 No need ext components 71
  72. 72. Schematics with VIPerx7 FLY-BACK / FF VIPer17 / 27 / 37 ISOLATED L1 30mW Stand-by F R2 C6 Minimum components countAC IN C1 + C2 + D2 T1 D3 NTC VOUT + C5 Low cost EMI filter GND C1,C2, L1 R6 D4 C6 VIPER x7 DRAIN Low cost clamp components R2,C6,D2 VDD Controller Current limit set-up - RLIM GND BR CONT FB C4 <400mA or <700mA or <1000mA R5 R3 Short circuit protection IC3 No need ext components R4 C7 RLIM IC2 2nd Over Current protection C3 R4 No need ext components 72
  73. 73. Schematics with VIPerx7 FLY-BACK / FF VIPer17 / 27 / 37 ISOLATED L1 30mW Stand-by F R2 C6 Minimum components countAC IN C1 + C2 + D2 T1 D3 NTC VOUT DOVP + C5 Low cost EMI filter GND C1,C2, L1 R6 D4 C6 VIPER x7 DRAIN Low cost clamp components ROVP R2,C6,D2 VDD Controller Current limit set-up - RLIM GND BR CONT FB C4 <400mA or <700mA or <1000mA R5 R3 Short circuit protection IC3 No need ext components R4 C7 RLIM IC2 2nd Over Current protection C3 R4 No need ext components Over Voltage Protection (VOUT) RLIM , ROVP , DOVP 73
  74. 74. Schematics with VIPerx7 FLY-BACK / FF VIPer17 / 27 / 37 ISOLATED L1 30mW Stand-by F R2 C6 Minimum components countAC IN C1 + C2 + D2 T1 D3 NTC VOUT + C5 Low cost EMI filter GND C1,C2, L1 R6 D4 C6 VIPER x7 DRAIN Low cost clamp components R2,C6,D2 R7 VDD Controller Default current limit GND BR CONT FB C4 400mA / 700mA / 1000mA R5 R3 Short circuit protection IC3 No need ext components R4 C7 R8 IC2 2nd Over Current protection C6 C3 R4 No need ext components Brown out set-up (VINDC) R7,R8, C6 74
  75. 75. Schematics with VIPerx7 FLY-BACK / FF VIPer17 / 27 / 37 ISOLATED L1 30mW Stand-by F R2 C6 Minimum components countAC IN C1 + C2 + D2 T1 D3 NTC VOUT DOVP + C5 Low cost EMI filter GND C1,C2, L1 R6 D4 C6 VIPER x7 DRAIN Low cost clamp components ROVP R2,C6,D2 R7 VDD Controller Current limit set-up - RLIM GND BR CONT FB C4 <400mA or <700mA or <1000mA R5 R3 Short circuit protection IC3 No need ext components R4 C7 R8 RLIM IC2 2nd Over Current protection C6 C3 R4 No need ext components Over Voltage Protection (VOUT) RLIM , ROVP , DOVP Brown out set-up (VINDC) R7,R8, C6 75
  76. 76. VIPer28 Main Features Pin description 800V, avalanche rugged power MOSFET PWM controller with drain current limit, IDlim. Adjustable current limit, IDlim Fixed Frequency with Jittering High performance for stand-by & efficiency Integrated protections: OVP, OLP, high OCP Automatic auto restart after fault Hysteretic thermal shutdown Extra Power Management  GND Power MOSFET CONTROLLER controller ground / power MOSFET Source MAIN PARAMETERS Main parameters (SuperMESH) (BCD6S)  VDD Break down voltage [V] 800 controller supply voltage / ICHARGE output current  COMP RDSon [Ohm] 7 OVP set-up, IDLIM set-up. VDD [V] 9 ÷ 23  FB current loop feedback FOSC [KHz] 60 or 115  EPT Max IDlim [mA] 850 Extra Power Time set-up RTHJ-A [°C/W] (1) 50  N.A. Not Available for user. (It can be connected to GND) POUT [W] @ 85-265VAC 12  N.C.(1) Package SO16N and 100mm2 of Cu Not Connected(2) Open Frame 76

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