Application Note, V1.0, Jul 2012 A N- E V A L 3 A R1 0 0 8 0 CJ Z 1 0W 5V S MPS E valuation B oard wi th CoolSET® F3R80 ICE3AR10080CJZ Power Management & Supply N e v e r s t o p t h i n k i n g . Published by Infineon Technologies AG 81726 Munich, Germany © 2012 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. 10W 5V Demoboard using ICE3AR10080CJZ on board Revision History: Previous Version: Page V1.0 none Subjects (major changes since last revision) 10W 5V SMPS Evaluation Board with CoolSET®F3R80 ICE3AR10080CJZ: License to Infineon Technologies Asia Pacific Pte Ltd Kyaw Zin Min Kok Siu Kam Eric We Listen to Your Comments Any information within this document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously improve the quality of this document. Please send your proposal (including a reference to this document) to: [email protected] AN-PS0069 10W 5V Demoboard using ICE3AR10080CJZ Table of Contents Page 1 Abstract .................................................................................................................................... 6 2 Evaluation board ...................................................................................................................... 6 3 List of features ......................................................................................................................... 7 4 Technical specifications .......................................................................................................... 7 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 Circuit description.................................................................................................................... 8 Introduction ................................................................................................................................ 8 Line input ................................................................................................................................... 8 Start up ...................................................................................................................................... 8 Operation mode ......................................................................................................................... 8 Soft start .................................................................................................................................... 8 RCD clamper circuit ................................................................................................................... 8 Peak current control of primary current ....................................................................................... 8 Output stage .............................................................................................................................. 8 Feedback and burst entry/exit control ......................................................................................... 9 Blanking window for load jump ................................................................................................... 9 Brownout mode .......................................................................................................................... 9 Fast AC reset ............................................................................................................................. 9 Active burst mode ...................................................................................................................... 9 Jitter mode, soft gate drive and the 50Ω gate turn on resistor ................................................... 10 Protection modes ..................................................................................................................... 10 6 Circuit diagram ....................................................................................................................... 11 7 7.1 7.2 PCB layout.............................................................................................................................. 13 Top side ................................................................................................................................... 13 Bottom side .............................................................................................................................. 13 8 Component list ....................................................................................................................... 14 9 Transformer construction ...................................................................................................... 16 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 Test results............................................................................................................................. 17 Efficiency ................................................................................................................................. 17 Input standby power ................................................................................................................. 18 Line regulation ......................................................................................................................... 19 Load regulation ........................................................................................................................ 19 Max. output power .................................................................................................................... 20 ESD test................................................................................................................................... 20 Lightning surge test .................................................................................................................. 20 Conducted EMI ........................................................................................................................ 21 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 11.12 11.13 11.14 11.15 11.16 Waveforms and scope plots .................................................................................................. 23 Start up at low and high AC line input voltage and max. load .................................................... 23 Soft start at low and high AC line input voltage and max. load .................................................. 23 Frequency jittering.................................................................................................................... 24 Drain to source voltage and Current at max. load ..................................................................... 24 Load transient response (Dynamic load from 10% to 100%) ..................................................... 25 Output ripple voltage at max. load ............................................................................................ 25 Output ripple voltage during burst mode at 1 W load ................................................................. 26 Entering active burst mode ....................................................................................................... 26 Vcc over voltage protection (Odd skip auto restart mode) ......................................................... 27 Over load protection (Odd skip auto restart mode) .................................................................... 27 Open loop protection (Odd skip auto restart mode) ................................................................... 28 VCC under voltage/Short optocoupler protection(Normal auto restart mode) .............................. 28 External protection enable/Secondary OVP by internal short (Latch mode) ............................... 29 External protection enable/Secondary OVP by external short (Latch mode) .............................. 29 Brownout mode ........................................................................................................................ 30 Fast AC reset ........................................................................................................................... 30 Application Note 4 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ Table of Contents 12 Page References ............................................................................................................................. 31 Application Note 5 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 1 Abstract This document is an engineering report of an universal input 10W 5V off-line flyback converter power supply utilizing IFX F3R80 CoolSET® ICE3AR10080CJZ. The application demo board is operated in Continuous and Discontinuous Conduction Mode (CCM & DCM) and is running at 100 kHz switching frequency. It has a single output voltage with secondary side control regulation. It is especially suitable for small power supply such as DVD player, set-top box, game console, charger and auxiliary power of high power system, etc. The ICE3AR10080CJZ is the enhanced version of ICE3ARxx80JZ (CoolSET® -F3R80), the major new featrures includes slope compensation for continuous conduction mode (CCM), fast AC reset after latch enabled, fixed ® voltage brownout detect/reset. Besides having the basic features of the F3R80 CoolSET such as Active Burst Mode, propagation delay compensation, soft gate drive, auto restart protection for major faults (Vcc over voltage, Vcc under voltage, over temperature, over-load, open loop and short opto-coupler), it also has the BiCMOS technology design, selectable entry and exit burst mode level, built-in soft start time, built-in blanking time, frequency jitter feature and external latch enable, etc. The particular features need to be stressed are 800V Mosfet,CCM/DCM operation, fixed voltage Brownout detect/reset, fast AC reset, the bestin-class low standby power and the good EMI performance. 2 Evaluation board Figure 1 – EVALSF3R80-ICE3AR10080CJZ This document contains the list of features, the power supply specification, schematic, bill of material and the transformer construction documentation. Typical operating characteristics such as performance curve and scope waveforms are showed at the rear of the report. Application Note 6 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 3 List of features 800V avalanche rugged CoolMOS® with Startup Cell Active Burst Mode for lowest Standby Power Slope compensation for CCM operation Selectable entry and exit burst mode level 100kHz internally fixed switching frequency with jittering feature Auto Restart Protection for Over load, Open Loop, VCC Under voltage & Over voltage and Over temperature External latch enable pin and fast AC reset Over temperature protection with 50°C hysteresis Built-in 10ms Soft Start Built-in 40ms blanking time for short duration peak power Propagation delay compensation for both maximum load and burst mode Brownout feature BiCMOS technology for low power consumption and wide VCC voltage range Soft gate drive with 50Ω turn on resistor 4 Technical specifications Input voltage 85Vac~282Vac Brownout detect/reset voltage 65/85Vac Input frequency 50/60Hz Input Standby Power < 100mW @ no load Output voltage 5V +/- 2% Output current 2A Output power 10W Acitve mode average efficiency >75% Output ripple voltage < 50mVp-p Application Note 7 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 5 5.1 Circuit description Introduction The EVAL3AR10080CJZ demo board is a low cost off-line flyback switch mode power supply (SMPS) using ® the ICE3AR10080CJZ integrated power IC from the CoolSET -F3R80 family. The circuit, shown in Figure 3, details a 5V, 10W power supply that operates from an AC line input voltage range of 85Vac to 282Vac and brownout detect/reset voltage is 65/85Vac, suitable for applications in enclosed adapter or open frame auxiliary power supply for different system such as PC, server, DVD, LED TV, Set-top box, etc. 5.2 Line input The AC line input side comprises the input fuse F1 as over-current protection. The choke L11, X-capacitor C11 and Y-capacitor C12 act as EMI suppressors. Optional spark gap device SA1, SA2 and varistor VAR can absorb high voltage stress during lightning surge test. After the bridge rectifier BR1 and the input bulk capacitor C13, a voltage of 120 to 400 VDC is present which depends on input voltage. 5.3 Start up Since there is a built-in startup cell in the ICE3AR10080CJZ, there is no need for external start up resistors. The startup cell is connecting the drain pin of the IC. Once the voltage is built up at the Drain pin of the ICE3AR10080CJZ, the startup cell will charge up the Vcc capacitor C16 and C17. When the Vcc voltage exceeds the UVLO at 17V, the IC starts up. Then the Vcc voltage is bootstrapped by the auxiliary winding to sustain the operation. 5.4 Operation mode During operation, the Vcc pin is supplied via a separate transformer winding with associated rectification D12 and buffering C16, C17. In order not to exceed the maximum voltage at Vcc pin due to poor coupling of transformer design, an external zener diode ZD11(optional) and a resistor R13(optional) can be added. 5.5 Soft start The Soft-Start is a built-in function and is set at 10ms. 5.6 RCD clamper circuit ® While turns off the CoolMOS , the clamper circuit R11, C15 and D11 absorbs the current caused by transformer leakage inductance once the voltage exceeds clamp capacitor voltage. Finally drain-source ® ® voltage of CoolMOS is lower than maximum break down voltage (V(BR)DSS = 800V) of CoolMOS . 5.7 Peak current control of primary current The CoolMOS® drain source current is sensed via external shunt resistors R14 and R15 which determine the tolerance of the current limit control. Since ICE3AR10080CJZ is a current mode controller, it would have a cycle-by-cycle primary current and feedback voltage control and can make sure the maximum power of the converter is controlled in every switching cycle. A revised propagation delay compensation with CCM and slope compensation factor are implemented. It can give a good maximum power control. 5.8 Output stage On the secondary side the power is coupled out by a schottky diode D21. The capacitor C22 provides energy buffering following with the LC filter L21 and C23 to reduce the output voltage ripple considerably. Storage capacitors C22 is selected to have a very small internal resistance (ESR) to minimize the output voltage ripple. Application Note 8 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 5.9 Feedback and burst entry/exit control FBB combines the feedback function and burst entry/exit control. The output voltage is controlled by using a TL431 (IC21) which incorporates the voltage reference as well as the error amplifier and a driver stage. Compensation network C25, C26, R24, R25, R26 and R27 constitutes the external circuitry of the error amplifier of IC21. This circuitry allows the feedback to be precisely matched to dynamically varying load conditions and provides stable control. The maximum current through the optocoupler diode and the voltage reference is set by using resistors R22 and R211. Optocoupler IC12 is used for floating transmission of the control signal to the “Feedback” input of the ICE3AR10080CJZ. The optocoupler used meets DIN VDE 884 requirements for a wider creepage distance. The capacitor C18 filters the noise from going to the FBB pin and the resistor R113 (Rsel resistor) at the FBB pin sets the selection of the burst entry/exit level. During IC first start up (Vcc=0~17V), Rfb resistor is isolated from FBB pin and Isel (3.5µA) will start to charge the R113 (Rsel resistor). Based on the charged voltage level at R113 (Rsel resistor), the entry and exit burst level are set. The below table is the control logic for the entry and exit level with R113 (Rsel resistor) voltage. Entry level Level Rsel VFBB 1 2 3 <405kΩ 685kΩ~900kΩ >1530kΩ VFBB < Vref1 (1.8V) Vref1 (1.8V) <VFBB < Vref2 (4V) VFBB > Vref2 (4V) % of Pin_max 5% 10% 15% VFB_burst 1.29V 1.61V 1.84V Exit level % of Pin_max 11% 20% 27% Vcsth_burst 0.21V 0.29V 0.34V 5.10 Blanking window for load jump In case of load jumps the controller provides the built in blanking window (40ms) before activating the Over Load Protection and entering the Odd skip Auto Restart Mode. 5.11 Brownout mode When the AC line input voltage is lower than the input voltage range, brownout mode is detected by sensing the voltage level at BRL pin through the voltage divider resistors from AC hold up circuit. Once the voltage level at BRL pin falls below 1V for 270µs, the controller stops switching and enters into brownout mode. It is until the input level goes back to input voltage range, VBRL > 1.25V and the Vcc hits 17V, the brownout mode is released. If the brownout feature is not needed, it needs to tie the BRL pin to the Vcc pin through a current limiting resistor (R114), 5MΩ~10ΜΩ. The BRL pin cannot be in floating condition. Note: A filter capacitor (e.g. 100pF (min. value)) may be needed to add to the BRL pin if the noise cannot be avoided to enter that pin in the physical PCB layout. Otherwise, some protection features may be mistriggered and the system may not be working properly. 5.12 Fast AC reset During normal operation, the ICE3AR1008080CJZ can be latched by pulling down the BRL voltage below 0.4V for 210µs and this can be reset by 2 condtions. The first one is to pull down the Vcc voltage to below 8V. However, the Vcc drop would take quite a long time if it is by normal AC power down. The second one is to have a slow rise time of the BRL voltage from 0.4V to 1V for at least 450µs after the BRL pin is pulled down, then IC can reset latch mode and it is also called the fast AC reset. 5.13 Active burst mode At light load condition, the SMPS enters into Active Burst Mode. For this F3R80 CoolSET®, the entry/exit burst mode level is selected by a Rsel resistor at FBB pin (refer to section 5.9). The light load condition is actually reflected to the FB voltage level for the CCM/DCM operation; i.e. FB voltage drops according to how light the load is. With the selectable feature, the enter burst mode level, VFB_burst is determined by the Rsel Application Note 9 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ resistor at FBB pin. After entering burst mode, the controller is always active and thus the VCC must always be kept above the switch off threshold VCCoff ≥ 10.5V. During the active burst mode, the efficiency maintains in a very high level and at the same time it supports low ripple on VOUT and fast response on load jump. To avoid mis-triggering of the burst mode, there is a 20ms internal blanking time. Once the FB voltage drops below VFB_burst, the internal blanking timer starts to count. When it reaches the built-in 20ms blanking time, it then enters Active Burst Mode. During Active Burst Mode the current sense voltage limit is reduced from 0.76V to Vcsth_burst so as to reduce the conduction losses and audible noise. All the internal circuits are switched off except the reference and bias voltages to reduce the total VCC current consumption to below 0.62mA. At burst mode, the FB voltage is changing like a sawtooth between 3.2 and 3.5V. To leave Burst Mode, FB voltage must exceed 4V. It will reset the Active Burst Mode and turn the SMPS into Normal Operating Mode. Maximum current can then be provided to stabilize VOUT. 5.14 Jitter mode, soft gate drive and the 50Ω gate turn on resistor In order to obtain better EMI performance, the ICE3AR10080CJZ is implemented with frequency jittering, soft gate drive and 50Ω gate turn on resistor. The jitter frequency is internally set at 100 kHz (+/-4 kHz) and the jitter period is set at 4ms. 5.15 Protection modes Protection is one of the major factors to determine whether the system is safe and robust. Therefore sufficient protection is necessary. ICE3AR10080CJZ provides three kinds of protection mode; normal auto restart mode, odd skip auto restart mode and non switch auto restart mode. In odd skip auto restart mode, there is no detect of fault and no switching pulse for the odd number restart cycle. At the even number of restart cycle, the fault detects and soft start switching pulses are maintained. If the fault persists, it would continue the auto-restart mode. However, if the fault is removed, it can release to normal operation only at the even number auto restart cycle. Non switch auto restart mode is similar to odd skip auto restart mode except the start up switching pulses are also suppressed at the even number of the restart cycle. The detection of fault still remains at the even number of the restart cycle. When the fault is removed, the IC will resume to normal operation at the even number of the restart cycle. The main purpose of the odd skip auto restart is to extend the restart time such that the power loss during auto restart protection can be reduced when a small Vcc capacitor is used. A list of protections and the failure conditions are shown in the following table. Protection functions VCC overvoltage Over load Open loop VCC under voltage short optocoupler Over temperature External protection enable Failure condition VCC > 25.5V & last for 150µs VFBB > 4.5V & last for 40ms -> Overload VCC < 10.5V -> VCC under voltage TJ > 130°C ( recovered with 50°C hysteresis) VBBA < 0.4V & last for 210µs Protection Modes Odd skip auto restart Odd skip auto restart Odd skip auto restart Normal auto restart Normal auto restart Non switch auto restart Latch N.B.: For External protection enable/Secondary OVP by external voltage source short (Latch mode) as shown in 11.14 (Fig 44 & 45), optional (OVP ckt power) & (FB disable ckt) are necessary to add. The purpose of (OVP ckt power) is feeding the power to IC13 (optocoupler) during normal time and disable the power during fault time, so that IC can enter latch mode in any fault conditions. The purpose of (FB disable ckt) is to exit the IC from burst mode to normal mode during fault time, since external protection enable feature is only work in normal operation mode. Application Note 10 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 6 Circuit diagram Figure 3 – 10W 5V ICE3AR10080CJZ power supply schematic Application Note 11 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ N.B. : In order to get the optimized performance of the CoolSET ®, the grounding of the PCB layout must be connected very carefully. From the circuit diagram above, it indicates that the grounding for the CoolSET® can be split into several groups; signal ground, Vcc ground, Current sense resistor ground and EMI return ground. All the split grounds should be connected to the bulk capacitor ground separately. ® Signal ground includes all small signal grounds connecting to the CoolSET GND pin such as filter capacitor ground, C17, C18, C19, C111, C115 and opto-coupler ground. Vcc ground includes the Vcc capacitor ground, C16 and the auxiliary winding ground, pin 2 of the power transformer. Current Sense resistor ground includes current sense resistor R14 and R15. EMI return ground includes Y capacitor, C12. Application Note 12 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 7 7.1 PCB layout Top side Figure 4 – Top side component legend 7.2 Bottom side Figure 5 – Bottom side copper & component legend Application Note 13 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 8 Component list No Designator 1 2 5 3 4 5 6 7 8 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 BR1 C11 C12 C13 C14 C15 C16,C28 C17,C27 C18,C19 C22 C23 C25 C26 C112 C115 D12 D11 D13,D14 D21 D22 F1 HS1 IC11 IC12,IC13 IC21,IC22 J11,J12,J13,J14, J15,J21,R16,R115, L22 L N, +5V Com L11 L21 Q11,Q12,Q13 R11 R12 R14 R15 R17 R18 R19,R110,R111 R112 R113 R117 R118 R120 R121 R22,R213 R23,R211 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Application Note Component description 600V,1A 0.1µF,305V 2.2nF,250V,Y1 47µF,500V 0.1µF,450V 2.2nF,630V 10µF,50V 0.1µF 1nF 1500µF,10V 1000µF,10V 47nF 470pF 47nF,63V 100nF,63V 200V,0.2A 800V,1A 600V,1A 45V,30A 100V,0.1A 0.5A,250V Heat sink ICE3AR10080CJZ SFH617A-3 TL431 Part No. Manufacturer DF06M-E3/45 B32922C3104+*** DE1E3KX222MA4BL01 B43501A6476M000 GR332DD72W104KW01 VISHAY EPCOS MURATA EPCOS MURATA EPCOS EPCOS MURATA MURATA EPCOS EPCOS B41851A6106M*** RPER71H104K2K1A03B RPE5C1H102J2K1A03B B41889 B41859 1N485B UF4006 UF4005 VFT3045C-M3/4W 1N4148 VISHAY VISHAY VISHAY ICE3AR10080CJZ INFINEON B82731M2501A030 EPCOS 2N7002 INFINEON Jumper Connector 2 x 47mH, 0.5A 1.5uH,6.3A 60V,0.3A 330k,2W 20R 1.8R,1W,1% 47R, 0.25W,1% 0R 24k 3M 105k 820k 100k 40k 40k 100k 150R 1.1k 14 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 47 48 49 50 R24 R26 R27,R28 R29 51 TR1 Application Note 3.3k 10k,1% 10k,1% 6.2k,1% Lp=2mH(87:4:11), E20/10/6(N87) 15 B662061110T001 EPCOS 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 9 Transformer construction Core: E20/10/6, N87(EPCOS) Bobbin: Horizontal Version Primary Inductance, Lp=2mH, measured between pin 4 and pin 5 (Gapped to inductance) Leakage Inductance <5% of Lp, measured between pin 4 and pin 5 while other outputs are short(short pin 6, 7,8 & 9, short pin 1 & 2) Figure 6 – Transformer structure and top view of transformer complete Wire size requirement: Application Note Start 5 Stop 3 No. of turns 44 Wire size 1XAWG#28 8,9 3 6,7 4 4 43 4XTIW(0.45mm) 1XAWG#28 Secondary 1 /2 Primary 2 1 11 1XAWG#28 Auxiliary 16 Layer /2 Primary 1 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 10 Test results 10.1 Efficiency Figure 7 – Efficiency vs. AC line input voltage Figure 8 – Efficiency vs. output power @ low and high line Application Note 17 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 10.2 Input standby power Figure 9 – Input standby power @ no load vs. AC line input voltage (measured by Yokogawa WT210 power meter - integration mode) Figure 10 – Input standby power @ 0.5W, 1W, 2W & 3W vs. AC line input voltage (measured by Yokogawa WT210 power meter - integration mode) Application Note 18 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 10.3 Line regulation Figure 11 – Line regulation Vo @ full load vs. AC line input voltage 10.4 Load regulation Figure 12 – Load regulation Vout vs. output power Application Note 19 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 10.5 Max. output power Figure 13 – Max. input power (before over-load protection) vs. AC line input voltage 10.6 ESD test Pass (EN61000-4-2): 16kV for contact discharge Pass (EN61000-4-2): 20kV for contact discharge (with ferrite bead (TOKIN B-20L-25) at D22 cathode side) 10.7 Lightning surge test Pass (EN61000-4-5): 4kV for line to earth Pass (EN61000-4-5): 6kV for line to earth (with surge absorber device; SA1 & SA2 (SSA601M)) Application Note 20 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 10.8 Conducted EMI The conducted EMI was measured by Schaffner (SMR4503) and followed the test standard of EN55022 (CISPR 22) class B. The demo board was set up at maximum load (20W) with input voltage of 115Vac and 230Vac. 80 EN_V_QP EN_V_AV QP AV 70 60 dBµV 50 40 30 20 10 0 -10 -20 0.1 1 10 100 f / MHz Figure 14 – Max. Load (10W) with 115 Vac (Line) 80 EN_V_QP EN_V_AV QP AV 70 60 dBµV 50 40 30 20 10 0 -10 -20 0.1 1 10 100 f / MHz Figure 15 – Max. Load (10W) with 115 Vac (Neutral) Application Note 21 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 80 EN_V_QP EN_V_AV QP AV 70 dBµV 60 50 40 30 20 10 0 -10 0.1 1 f / MHz 10 100 Figure 16 – Max. Load (10W) with 230 Vac (Line) 80 EN_V_QP EN_V_AV QP AV 70 dBµV 60 50 40 30 20 10 0 -10 0.1 1 f / MHz 10 100 Figure 17 – Max. Load (10W) with 230 Vac (Neutral) Pass conducted EMI EN55022 (CISPR 22) class B with > 10dB margin. Application Note 22 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11 Waveforms and scope plots All waveforms and scope plots were recorded with a LeCroy 6050 oscilloscope 11.1 Start up at low and high AC line input voltage and max. load 250ms 250ms Entry/exit burst selection (Level 2) Channel Channel Channel Channel Entry/exit burst selection (Level 2) 1; C1 : Drain voltage (VD) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Channel Channel Channel Channel 1; C1 : Drain voltage (VD) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Startup time = 250ms Startup time = 250ms Figure 18 – Startup @ 85Vac & max. load Figure 19 – Startup @ 282Vac & max. load 11.2 Soft start at low and high AC line input voltage and max. load 9.5ms Channel Channel Channel Channel 9.5ms 1; C1 : Current sense voltage (VCS) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Channel Channel Channel Channel 1; C1 : Current sense voltage (VCS) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Soft Start time = 9.5ms Soft Start time = 9.5ms Figure 20 – Soft Start @ 85Vac & max. load Figure 21– Soft Start @ 282Vac & max. load Application Note 23 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.3 Frequency jittering 102kHz 102kHz 3.8ms 3.8ms 95kHz 95kHz Channel 1; C1 : Drain voltage (VD) Channel 1; C1 : Drain voltage (VD) Frequency jittering from 95 kHz ~ 102 kHz, Jitter period is 4ms Frequency jittering from 95kHz ~ 102 kHz, Jitter period is 4ms Figure 22 – Frequency jittering @ 85Vac and max. load Figure 23 – Frequency jittering @ 282Vac and max. load 11.4 Drain to source voltage and Current at max. load Channel 1; C1 : Drain voltage (VDrain) Channel 2; C2 : Drain current (IDS) Duty cycle = 50%, VDrain_peak = 349V Figure 24 – CCM Operation @ 85Vac and max. load Application Note Channel 1; C1 : Drain voltage (VDrain) Channel 2; C2 : Drain current (IDS) Duty cycle = 18%, VDrain_peak = 628V Figure 25 – DCM Operation @ 282Vac and max. load 24 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.5 Load transient response (Dynamic load from 10% to 100%) Channel 1; C1 : Output ripple voltage (Vo) Channel 2; C2 : Output current (Io) Channel 1; C1 : Output ripple voltage (Vo) Channel 2; C2 : Output current (Io) Vripple_pk_pk=190mV (Load change from10% to 100%,100Hz,0.4A/μS slew rate) Probe terminal end with decoupling capacitor of 0.1uF(ceramic) & 1uF(Electrolytic), 20MHz filter Vripple_pk_pk=188mV (Load change from10% to 100%,100Hz,0.4A/μS slew rate Probe terminal end with decoupling capacitor of 0.1uF(ceramic) & 1uF(Electrolytic), 20MHz filter Figure 26 – Load transient response @ 85Vac Figure 27 – Load transient response @ 282Vac 11.6 Output ripple voltage at max. load Channel 1; C1 : Output ripple voltage (Vo) Channel 2; C2 : Output current (Io) Channel 1; C1 : Output ripple voltage (Vo) Channel 2; C2 : Output current (Io) Vripple_pk_pk=36mV Probe terminal end with decoupling capacitor of 0.1uF(ceramic) & 1uF(Electrolytic), 20MHz filter Vripple_pk_pk = 33mV Probe terminal end with decoupling capacitor of 0.1uF(ceramic) & 1uF(Electrolytic), 20MHz filter Figure 28 – AC output ripple @ 85Vac and max. load Figure 29– AC output ripple @ 282Vac and max. load Application Note 25 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.7 Output ripple voltage during burst mode at 1 W load Channel 1; C1 : Output ripple voltage (Vo) Channel 2; C2 : Output current (Io) Channel 1; C1 : Output ripple voltage (Vo) Channel 2; C2 : Output current (Io) Vripple_pk_pk=19mV Probe terminal end with decoupling capacitor of 0.1uF(ceramic) & 1uF(Electrolytic), 20MHz filter Vripple_pk_pk = 22mV Probe terminal end with decoupling capacitor of 0.1uF(ceramic) & 1uF(Electrolytic), 20MHz filter Figure 30 – AC output ripple @ 85Vac and 1W load Figure 31 – AC output ripple @ 282Vac and 1W load 11.8 Entering active burst mode 19 ms 19ms Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) Blanking time to enter burst mode : 19ms (load step down from 2A to 0.2A) Figure 32 – Active burst mode @ 85Vac Application Note Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) Blanking time to enter burst mode : 19ms (load step down from 2A to 0.2A) Figure 33 – Active burst mode @ 282Vac 26 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.9 Vcc over voltage protection (Odd skip auto restart mode) VCC OVP VCC OVP Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) VCC OVP (R27 disconnected during system operating at no load) Remark; Removed J13(disable latch mode) Figure 34 – Vcc overvoltage protection @ 85Vac 11.10 Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) VCC OVP (R27 disconnected during system operating at no load) Remark; Removed J13(disable latch mode) Figure 35 – Vcc overvoltage protection @ 282Vac Over load protection (Odd skip auto restart mode) Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) Over load protection with built-in blanking time = 38ms (output load change from 2A to 3.5A) Figure 36 – Over load protection with built-in blanking time @ 85Vac) Application Note Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) Over load protection with built-in blanking time = 38ms (output load change from 2A to 3.5A) Figure 37 – Over load protection with built-in blanking time @ 282Vac) 27 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.11 Channel Channel Channel Channel Open loop protection (Odd skip auto restart mode) 1; C1 : Current sense voltage (VCS) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Channel Channel Channel Channel 1; C1 : Current sense voltage (VCS) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Open loop protection (R27 disconnected during system operation at max. load) – over load protection Remark; Removed J13(disable latch mode) Open loop protection (R27 disconnected during system operation at max. load) – Vcc over voltage protection Remark; Removed J13(disable latch mode) Figure 38 – Open loop protection @ 85Vac Figure 39 – Open loop protection @ 282Vac 11.12 VCC under voltage/Short optocoupler protection(Normal auto restart mode) Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) VCC under voltage/short optocoupler protection (short the transistor of optocoupler(IC12) during system operating @ full load & release) Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) VCC under voltage/short optocoupler protection (short the transistor of optocoupler during system operating @ full load & release) Figure 40 – Vcc under voltage/short optocoupler protection @ 85Vac Figure 41 – Vcc under voltage/short optocoupler protection @ 282Vac Application Note 28 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.13 Channel Channel Channel Channel External protection enable/Secondary OVP by internal short (Latch mode) 1; C1 : Output voltage (VO) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Channel Channel Channel Channel 1; C1 : Output voltage (VO) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) External protection enable (short R26 during system operating at 1A load) External protection enable (short R26 during system operating at 1A load) Figure 42 – External protection enable @ 85Vac Figure 43– External protection enable @ 282Vac 11.14 Channel Channel Channel Channel External protection enable/Secondary OVP by external short (Latch mode) 1; C1 : Output voltage (VO) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) Channel Channel Channel Channel 1; C1 : Output voltage (VO) 2; C2 : Supply voltage (VCC) 3; C3 : Feedback voltage (VFBB) 4; C4 : BRL voltage (VBRL) External protection enable (feed 12V/2A external power source to output voltage,5V rail during system operating at 1A load) External protection enable (feed 12V/2A external power source to output voltage,5V rail during system operating at 1A load) Figure 44 – External protection enable @ 85Vac Figure 45– External protection enable @ 282Vac Application Note 29 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ 11.15 Brownout mode 93Vdc 90Vdc 114Vdc 115Vdc Channel 1; C1 : DC line input voltage (VC14) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Current sense voltage (VCS) Channel 4; C4 : BRL voltage (VBRL) Brownout reset: VC14= 115Vdc (82Vac), VBRL=1.25V Brownout detect: VC14= 93Vdc (66Vac), VBRL=1V Channel 1; C1 : DC line input voltage (VC14) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Current sense voltage (VCS) Channel 4; C4 : BRL voltage (VBRL) Brownout reset: Vbulk= 114Vdc (82Vac),VBRL=1.25V Brownout detect: Vbulk= 90Vdc (65Vac), VBRL=1V Figure 46 – Brownout mode with max. load Figure 47 – Brownout mode with no load 11.16 Fast AC reset Enter Latch Enter Latch AC on AC off AC on AC off Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) AC reset time=0.28s short the R26 while system running at 1A load(to simulate latch), then switch off main AC & on again Channel 1; C1 : Current sense voltage (VCS) Channel 2; C2 : Supply voltage (VCC) Channel 3; C3 : Feedback voltage (VFBB) Channel 4; C4 : BRL voltage (VBRL) AC reset time=0.99s short the R26 while system running at 1A load(to simulate latch), then switch off main AC & on again Figure 48 – Fast AC reset timing @ 85Vac Figure 49– Fast AC reset timing @ 282Vac Application Note 30 2013-01-04 10W 5V Demoboard using ICE3AR10080CJZ More information regarding how to calculate the additional components, see application note AN_SMPS_ICE2xXXX – available on the internet: www.infineon.com (directory : Home > Power Semiconductors > Integrated Power ICs > CoolSET® F2) 12 References [1] Infineon Technologies, Datasheet “CoolSET®-F3R80 ICE3AR10080CJZ Off-Line SMPS Current Mode Controller with integrated 800V CoolMOS® and Startup cell( brownout & CCM) in DIP-7” [2] Kyaw Zin Min, Kok Siu Kam Eric, Infineon Technologies, Design Guide “ICE3ARxx80CJZ CoolSET® F3R80 (DIP-7) brownout & CCM version Design Guide” [3] Harald Zoellinger, Rainer Kling, Infineon Technologies, Application Note “AN-SMPS-ICE2xXXX-1, CoolSET® ICE2xXXXX for Off-Line Switching Mode Power supply (SMPS )” Application Note 31 2013-01-04