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AC TO DC PWM IC Induction

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UNISON<strong>IC</strong> Technologies Co., Ltd.UTC SemiconductorProfessional Design<strong>PWM</strong> <strong>IC</strong> For SMPS IntroductionRev. 1.0May 2013Support. Service. Solution.Http://www.unisonic.com.tw


UTC SemiconductorProfessional DesignSupport. Service. Solution.Content‧ Cover Page - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ UTC Semiconductor Provides - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ UTC SMPS Product Line - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ UTC SMPS Applications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ UTC Power Consumption- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ Total of Power Supply Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ <strong>AC</strong> To <strong>DC</strong> Switching Portfolio - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ A/D Voltage Mode <strong>PWM</strong> <strong>IC</strong> Design Reference - - - - - - - - - - - - - - - - - - - - -‧ A/D Voltage Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ A/D Current Mode <strong>PWM</strong> <strong>IC</strong> Design Reference - - - - - - - - - - - - - - - - - - - - -‧ A/D Current Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Design Reference - - - - - - - - - - - - - - - - - - - - -‧ A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ Green Mode UC3863 10W 5V/2A Demo Board Performance - - - - - - - - - - - - - - - - - -‧ A/D <strong>PWM</strong> Power Switcher Design Reference - - - - - - - - - - - - - - - - - - - - -‧ A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ Power Switcher Green Mode UPS603 12W 12V/1A Demo Board Performance - - - - - -‧ Power Factor Controller Design Reference - - - - - - - - - - - - - - - - - - - - - - -‧ PFC Controller Introduce - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ UA7527 20W 27V/0.75A Demo Board Performance- - - - - - - - - - - - - - - - - - - - - - - - - -‧ Power Factor Correction and <strong>PWM</strong> <strong>IC</strong> Design Reference - - - - - - - - - - - -‧ PFC and <strong>PWM</strong> Combo Controller Introduce - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -‧ Sales and Design Assistance from UTC - - - - - - - - - - - - - - - - - - - - - - - - -Page123456789/101011/1412/1415/2215/1920/2223/3024/2728/3031/3632/3435/3637/383839<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.UTC Semiconductor Provides Professional Knowledge, Really Solution,Quickly Design , Eco-design Requirements of Green Power Supply.Efficiency StandardsThe efficiency in the active power supply must to according to standards organizations, like ENERGY STAR, USA CEC,Europe EUP etc. UTC Semiconductor actively participate in global energy organizations to work in energy efficiency .UTC Semiconductor have ability to support customers got solution and promotion adaptor power in marketing, and meetall of the specification requirements.Power Supply ExpertiseUTC Semiconductor provides all kinds of power supply, enabling quick development products of cost-effectiveand meet evolving global efficiency standards. Our expertise in quick design and high efficiency power helps solve yourChallenges in all focus area for efficiency enhancement:‧No load mode power consumption.‧High active power efficiency.‧Power factor correction.UTC Semiconductor provides all kinds of integrated circuit, to help customers design for Adaptor power supply. Like:‧Power factor controllers.‧Pulse Wide-Modulation controllers.‧Power MOS-FET.‧Diode and Transistor.‧Power Management Controllers.‧Supervisory controllers.Support and SolutionProducts Design CentersUTC Semiconductor can support design circuit, PCB artwork, BOM, test data, and EMI report, even our SMPS designgroup co-design with manufacturers and design experience.<strong>IC</strong> Design CentersUTC Semiconductor can support and develop advanced power management integrated circuits, to lower design, approved, process time and modify SMPS to simplify, standard.Field Application CentersUTC Semiconductor field application engineer provides fully support any issues in SMPS. Including specification, feature,application, failure analysis, solutions, training, and pay attention to design.<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.SMPS Product LinePFCL8561UA7527MOSFET2N604N60RectifierMBR10100CBYC10-600<strong>PWM</strong>UC3863UC3873SMPSCC.CV ControllerUM601UM606<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.SMPS ApplicationsPortableChargeLCDTV/MonitorLEDLightingHomeApplianceSMPSSet TopBoxPC PowerSupplyNote BookAdaptor<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.Power Consumption100mW~150mW


UTC SemiconductorProfessional DesignSupport. Service. Solution.Total of Power Supply Functions<strong>AC</strong> to <strong>DC</strong> SMPS FunctionsPrimary SideSecondary Side<strong>AC</strong>InputEMI FilterBridgeRectifierPowerFactorCorrectionConverter Rectifier <strong>DC</strong> Filter<strong>DC</strong>Output<strong>AC</strong> To <strong>DC</strong> Power Supply<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.<strong>AC</strong> <strong>TO</strong> <strong>DC</strong> SMPS PortfolioSSR TYPE<strong>PWM</strong><strong>PWM</strong>+PFCPFCPSR TYPE<strong>PWM</strong>SwitcherControllerComboControllerControllerSwitcherUPS601-4UPS701-4UPS5601UPS1602UPS2602UPS3602UPS4602UPS1622UPS1604UPS3601VoltageModeTL494TL594UA7500B519435313521U3525CurrentModeUC2843BUC3843BUC3843AUC3842BUC3842AUC2844UC3844UC2845UC3845GreenModeUC3846UC3846BUC3848UC3849UC3830UC3863UC3873UC3837UC3869UC3842GUC3843GL65657842TDA16888UA7527UA7524L8561L85628565UPSR100GUPSR1103UPSS1601UQS6502<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Voltage Mode <strong>PWM</strong> <strong>IC</strong> Design ReferenceComparable Block DiagramVoltage Mode <strong>PWM</strong> <strong>IC</strong> Design<strong>PWM</strong> <strong>IC</strong> For Power Total Solution


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Voltage Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Voltage Mode)Model No. Application Marketing Description General Design FunctionTL494/ TL594UA7500B/51494<strong>AC</strong> To <strong>DC</strong>Up to 400W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3531 <strong>AC</strong> To <strong>DC</strong>Up to 400W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. OVP, UVP,OPP, SCP, OCP.4. Remote Control, PG/PF.5. Stand-By Power Control.5. Totem Pole Output3521 <strong>AC</strong> To <strong>DC</strong>Up to 400W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. OVP, UVP,OPP, SCP, OCP.4. Remote Control, PG/PF.5. Totem Pole OutputU3525<strong>AC</strong> To <strong>DC</strong>Up to 400W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Current Mode <strong>PWM</strong> <strong>IC</strong> Design ReferenceComparable Block DiagramCurrent & Green Mode <strong>PWM</strong> <strong>IC</strong> Design


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Current Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Current Mode)Model No. Application Marketing Description General Design FunctionUC3843A/B<strong>AC</strong> To <strong>DC</strong>Up to 500W(<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC3843A=Frequency:RT=10KΩ,CT=3.3nF 47KHz-57KHz4. UC3843B=Frequency:RT=10KΩ,CT=3.3nF 49KHz-55KHz.5. Totem Pole design for MOSFET.6. Duty Cycle up to 100%.7. UVLO: VTH(st)=8.4V.Vopr(min.)=7.6V.8. OCP: Current Sense pin CS (1.0V Typical)9. SCP, OLP Build in.10. T(OP)= -0~+70℃UC2843B<strong>AC</strong> To <strong>DC</strong>500W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC2843B=Frequency:RT=10KΩ,CT=3.3nF 49KHz-55KHz.4. Totem Pole design for MOSFET.5. Duty Cycle up to 100%.6. UVLO: VTH(st)=8.4V.Vopr(min.)=7.6V.7. OCP: Current Sense pin CS (1.0V Typical)8. SCP, OLP Build in.9. T(OP)= -40~+85℃UC3842A/B<strong>AC</strong> To <strong>DC</strong>500W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC3842A=Frequency:RT=10KΩ,CT=3.3nF 47KHz-57KHz4. UC3842B=Frequency:RT=10KΩ,CT=3.3nF 49KHz-55KHz.5. Totem Pole design for MOSFET.6. Duty Cycle up to 100%.7. UVLO: VTH(st)=16V.Vopr(min.)=10V.8. OCP: Current Sense pin CS (1.0V Typical)9. SCP, OLP Build in.10. T(OP)= -0~+70℃


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Current Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Current Mode)Model No. Application Marketing Description General Design FunctionUC3844<strong>AC</strong> To <strong>DC</strong>Up to 350W(<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC3844=Frequency:RT=10KΩ,CT=3.3nF 47KHz-57KHz4. Totem Pole design for MOSFET.5. Duty Cycle up to 48%.6. UVLO: VTH(st)=16.0V.Vopr(min.)=10V.7. OCP: Current Sense pin CS (1.0V Typical)8. SCP, OLP Build in.9. T(OP)= -0~+70℃UC2844<strong>AC</strong> To <strong>DC</strong>500W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC2844=Frequency:RT=10KΩ,CT=3.3nF 47KHz-57KHz4. Totem Pole design for MOSFET.5. Duty Cycle up to 48%.6. UVLO: VTH(st)=16.0V.Vopr(min.)=10V.7. OCP: Current Sense pin CS (1.0V Typical)8. SCP, OLP Build in.9. T(OP)= --40~+120℃


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Current Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Current Mode)Model No. Application Marketing Description General Design FunctionUC3845<strong>AC</strong> To <strong>DC</strong>350W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC3845=Frequency:RT=10KΩ,CT=3.3nF 47KHz-57KHz4. Totem Pole design for MOSFET.5. Duty Cycle up to 48%.6. UVLO: VTH(st)=8.4V.Vopr(min.)=7.6V.7. OCP: Current Sense pin CS (1.0V Typical)8. SCP, OLP Build in.9. T(OP)= -0~+70℃UC2845<strong>AC</strong> To <strong>DC</strong>500W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. UC2845=Frequency:RT=10KΩ,CT=3.3nF 47KHz-57KHz4. Totem Pole design for MOSFET.5. Duty Cycle up to 48%.6. UVLO: VTH(st)=8.4V.Vopr(min.)=7.6V.7. OCP: Current Sense pin CS (1.0V Typical)8. SCP, OLP Build in.9. T(OP)= --40~+120℃


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)ModelNo.Application Marketing Description General Design Function CompatibleUB3846<strong>AC</strong> To <strong>DC</strong>Up To 65W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVR/Set-topBox/ BusinessMachines/Open FrameMeet DoE Level 6, Etc1. I/P V=25V(Max.)2. Totem Pole High Speed Design forMOSFET. Io>200mA.3. OVP, OLP, OTP,UVLO.OCP cycleby cycle.4. Standby Mode with Burst Mode at10% below.5. Programmable PFM Frequency.(Load at 10% -25% variable).6. Fix Frequency by RI pin (<strong>PWM</strong>)(over 25% fix on set frequency.)7. UTC hopping technology forimproved EMI.8. Typical 74% Duty Cycle.SG6848UB3846B<strong>AC</strong> To <strong>DC</strong>Up To 65W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVR/Set-topBox/ BusinessMachines/Open FrameMeet DoE Level 6, Etc1. I/P V=25V(Max.)2. Totem Pole High Speed Design forMOSFET. Io>200mA.3. OVP, OLP, OTP,UVLO.OCP cycleby cycle.4. OTP can to sense by RT pin.5. Standby Mode with Burst Mode at10% below.6. Programmable PFM Frequency.(Load at 10% -25% variable).7. Fix Frequency by RI pin (<strong>PWM</strong>)(over 25% fix on set frequency.)8. UTC hopping technology forimproved EMI.9.Typical 74% Duty Cycle.SG6846UC3848<strong>AC</strong> To <strong>DC</strong>Up To 65W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVR/Set-topBox/ BusinessMachines/Open FrameMeet DoE Level 6, Etc1. I/P V=30V(Max.)2. Totem Pole High Speed Design forMOSFET. Io>200mA.3. Soft start, OVP, OLP, OTP,UVLOOCP cycle by cycle.4. Standby Mode with Burst Mode at10% below.5. Programmable PFM Frequency.(Load at 10% -25% variable).6. Fix Frequency by RI pin (<strong>PWM</strong>)(over 25% fix on set frequency.)7. UTC hopping technology forimproved EMI.8. Typical 74% Duty Cycle.


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)ModelNo.Application Marketing Description General Design Function CompatibleUC3849<strong>AC</strong> To <strong>DC</strong>Up To 65W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVR/Set-topBox/ BusinessMachines/Open FrameMeet DoE Level6 , Etc1. I/P V=25V(Max.)2. Totem Pole High Speed Design forMOSFET. Io>200mA.3. OVP, OLP, OTP,UVLO.OCP cycle bycycle.4. <strong>AC</strong> input detector pin UVP at Vin pin.5. OTP can to sense by RT pin.6. Standby Mode with Burst Mode at10% below.7. Programmable PFM Frequency.(Load at 10% -25% variable).8. Fix Frequency by RI pin (<strong>PWM</strong>)(over 25% fix on set frequency.)9. UTC hopping technology forimproved EMI.10. Typical 74% Duty Cycle.OB2269UC3830<strong>AC</strong> To <strong>DC</strong>Up To 65W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVR/Set-topBox/BusinessMachines/OpenFrameMeet DoE Level6 , Etc1. I/P V=30V(Max.)2. Totem Pole High Speed Design forMOSFET. Io>300mA.3. OVP, OLP, OTP,UVLO.OCP cycle bycycle.4. Standby Mode with Burst Mode at10% below.5. Programmable PFM Frequency.(Load at 10% -25% variable).6. Fix Frequency by RI pin (<strong>PWM</strong>)(over 25% fix on set frequency.)7. UTC hopping technology forimproved EMI.8. Typical 74% Duty Cycle.LD7530UC3863<strong>AC</strong> To <strong>DC</strong>Up To 65W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVR/Set-topBox/BusinessMachines/OpenFrameMeet DoE Level6 , Etc1. I/P V=30V(Max.)2. Totem Pole High Speed Design forMOSFET. Io>200mA.3. Soft start, OVP, OLP,OTP,UVLO.OCP cycle by cycle.4. Standby Mode with Burst Mode at10% below.5. Programmable PFM Frequency.(Load at 10% -25% variable).6. Fix Frequency by RI pin (<strong>PWM</strong>)(over 25% fix on set frequency.)7. UTC hopping technology forimproved EMI.8. Typical 74% Duty Cycle.OB2263LD7535/LD7535AR7731G8830/G8836SF1531


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)UC3863 <strong>PWM</strong> Comparable TableVendorUTCLeadTrendOn Bright R<strong>IC</strong>HTEK GRENERGY 賽 威FunctionUC3863LD7535LD7535AOB2263R7731GR8830GR8836SF1531PINAssignmentPackageSOT-26(DIP-8 , SOP-8)SOT-26DIP-8SOT-26DIP-8 , SOP-8SOT-26DIP-8SOT-26DIP-8SOT-26DIP-8Start UpVoltageV THD(ON) =14V-17VV DD(MIN) =9V-11VV THD(ON) =15V-17VV DD(MIN) =9V-11VV THD(ON) =13V-15VV DD(MIN) =7.8V-9.8VV THD(ON) =13V-15VV DD(MIN) ≒ 11VV THD(ON) =13.3V-17VV DD(MIN) =8V-10VV THD(ON) =13.5V-15.5VV DD(MIN) =8V-9.8VProtectionFunction(Build in)OTP, OVP,OLP,SCP, LEB, UVLO,SSVDD Clamp forhigh securityOVP, OLP, SCP,LEB, UVLO,VDD Clamp for32VOLP, LEB, SCP,UVLO,VDD Clamp for 30VOTP, OVP, LEB,UVLO, SSVDD Clamp forhigh securityOTP,OLP, OVP,SCP,LEB, UVLO, SSOVP, OLP,SCP, LEB,UVLO,VDD Clampfor 35VPower SavingBurst →PFM →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>EMIHopping TechnologyUTC PatentJitter Jitter Jitter JitterHoppingTechnologyUTC PatentOTP 135℃ NON NON 140℃ NON NONOVP(TYP<strong>IC</strong>AL)V CC =26.0VLD7535=28.0VLD7535A=21.0VNONV CC =27.0V8830=V CC =27.0V8836=Vcc=28VV CC =28.5VOLP(TYP<strong>IC</strong>AL)FB≒4.8V FB≒5.0V FB≒3.7VBy CS Pin (NotTrue)8830=FB≒3.5V8830=FB≒3.7VFB≒3.6VLEB Cs(TYP<strong>IC</strong>AL)0.65V 0.85V 0.75V 0.7V 0.9V 0.75VUVLO(TYP<strong>IC</strong>AL)10V 10V 8.8V 11.0V8830=10.8V8830=9.0V9.0V


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)UTC Electrical Characteristics ExcellenceVendorUTCLeadTrendOn Bright R<strong>IC</strong>HTEK GRENERGY 賽 威FunctionUC3863LD7535LD7535AOB2263R7731GR8830GR8836SF1531Function Compare InstructionOTP Yes X X Yes Yes XOVP Yes Yes X Yes Yes YesOLP Yes Yes Yes Yes Yes YesSCP Yes Yes Yes Danger Yes YesLEB Yes Yes Yes Yes Yes YesUVLO Yes Yes Yes Yes Yes YesSS Yes X X Yes Yes YesVD<strong>DC</strong>lampYes Yes Yes Yes X YesElectrical Characteristics Function Compare InstructionEfficiency Best Generally Generally Generally Generally BestPowerSavingBurst →PFM →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Build inBurst →<strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>EMIHopping TechnologyUTC PatentJitter Jitter Jitter JitterHoppingTechnologyUTC PatentStart UpIstr


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)UC3873 <strong>PWM</strong> Comparable TableVendorUTC On Bright Lead Trend R<strong>IC</strong>HTEK FairchildNEOENERGYHOTCHOPPower-RailFunctionUC3873 OB2273 LD7536 R7735 FAN6863 NE1102E HT2273 PR6865PINAssignmentPackage SOT-26 SOT-26SOT-26 ,DIP-8SOT-26 ,DIP-8SOT-26 SOT-26 SOT-26 SOT-26Start UpVoltageV THD(ON) =12V-14.5VV DD(MIN) =7.5V-9.5VV THD(ON) =13V-15VV DD(MIN) =7.8V-9.8VV THD(ON) =15V-17VV DD(MIN) =9V-11VV THD(ON) =13.0V-15.0VV DD(MIN) =8.5V-9.5VV THD(ON) =15.0V-17.0VV DD(MIN) =6.5V-7.5VV THD(ON) =13.0V-15.0VV DD(MIN) =9.0V-11.0VV THD(ON) =12.5V-14.5VV DD(MIN) =6.0V-8.0VV THD(ON) =14.0V-16.0VV DD(MIN) =8.2V-10.2VProtectionFunctionOTP,OVP,OCP,OLP,SCP, LEB,UVLO, SSVDD Clampfor highsecurityOTP, OVP,OCP, OLP,SCP, LEB,UVLO, SSVDD Clampfor 30VOTP, OVP,OCP, OLP,SCP, LEB,UVLO, SSVDD Clampfor 29VOTP,OVP,OCP, OLP,SCP, LEB,UVLO, SSVDD Clampfor 29VOTP,OVP,OCP, OLP,SCP, LEB,UVLO, SSVDD NotClampOTP,OVP,OCP,OLP,SCP, LEB,UVLO, SSVDD NotClampOTP,OVP,OCP,OLP,SCP, LEB,UVLO, SSVDD Clampfor 34VOTP,OVP,OCP,OLP,SCP, LEB,UVLO, SSVDD Clampfor 31VPower SavingBurst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>EMIHoppingTechnologyUTC PatentJitter Jitter Jitter Jitter Jitter Jitter JitterOTP 125℃ 150℃ 140℃ 125℃ 135℃ 150℃ 85℃ 85℃OVP(TYP<strong>IC</strong>AL)OLP(TYP<strong>IC</strong>AL)LEB Cs(TYP<strong>IC</strong>AL)UVLO(TYP<strong>IC</strong>AL)V CC =25.0V V CC =26.0V V CC =26.0V V CC =27.0V V CC =22.5V V CC =25.0V V CC =28.0V V CC =27.0VFB≒5.0V FB≒3.7V FB≒4.5V FB≒2.9V FB≒4.6V FB≒4.0V FB≒3.7V FB≒3.5V0.70V 0.75V 0.85V 0.70V 0.60V 0.85V 0.75V 0.90V8.5V 7.0V 10.0V 9.0V 7.0V 10.0V 7V 9.2V


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)UTC Electrical Characteristics ExcellenceFunctionVendorUTC On Bright Lead Trend R<strong>IC</strong>HTEK Fairchild NeoEnergy Hotchip Power-RailUC3873 OB2273 LD7536 R7735 FAN6863 NE1102E HT2273 PR6865Electrical Characteristics Function Compare InstructionEfficiency Best Generally Generally Generally Best Generally Generally GenerallyPowerSavingBurst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>Burst →PFM→ <strong>PWM</strong>EMIHoppingTechnologyUTC PatentJitter Jitter Jitter Jitter Jitter Jitter JitterStart UpIstr


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D Green Mode <strong>PWM</strong> <strong>IC</strong> Controller Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> <strong>IC</strong> Controller (Green Mode)ModelNo.Application Marketing Description General Design Function CompatibleUC3842G<strong>AC</strong> To <strong>DC</strong>500W (<strong>PWM</strong>)PC/TVGame/IndustrialDesk Top Etc.*To replace originaldesign 3842 Type.1. I/P: 110V<strong>AC</strong>/230V<strong>AC</strong>2. O/P: 5V~UP3. I start up


UTC SemiconductorProfessional DesignSupport. Service. Solution.Green Mode UC3863 10W 5V/2A Demo Board PerformancePCB LAYOUT34mm50mm50mm


UTC SemiconductorProfessional DesignSupport. Service. Solution.Green Mode UC3863 10W 5V/2A Demo Board PerformancePower Consumption☆ DoE Level 6 for O/P at no load power consumption.☆ <strong>AC</strong> Input : From 115V<strong>AC</strong>/60Hz to 230V<strong>AC</strong>/50Hz.☆ Output: At no load (0.0A)☆ Input power ≦0.1W<strong>AC</strong> Input<strong>DC</strong> OutputCurrentSpecificationI/P WResultI/P W115.0V<strong>AC</strong>/60Hz 0.0A ≦ 0.1 0.0046W230.0V<strong>AC</strong>/50Hz 0.0A ≦ 0.1 0.0191W


UTC SemiconductorProfessional DesignSupport. Service. Solution.Green Mode UC3863 10W 5V/2A Demo Board PerformanceEfficiency☆ Low voltage model (Po=10W).☆ Measure at end of cable, 18AWG/1.8m.<strong>AC</strong> InputV<strong>AC</strong>/HzIout(2A)Rule AV-EFF(DoE Level 6)ResultPin (W) Pout (W) EFF. (%) AV-EFF. (%)25%3.213 2.578 80.236115.0/6050% 6.207 5.108 82.29478.704%75% 9.330 7.590 81.350100% 12.426 10.022 80.65381.13325%3.280 2.578 78.597230.0/5050% 6.281 5.108 81.32478.704%75% 9.442 7.589 80.375100% 12.480 10.022 80.30480.150


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D <strong>PWM</strong> Power Switcher Design ReferenceComparable Block DiagramGreen Mode <strong>PWM</strong> Power Switcher Design


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D <strong>PWM</strong> Power Switcher Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> Power Switcher (Green Mode)Model No. Application Marketing Description General Design FunctionUPS601UPS701<strong>AC</strong> To <strong>DC</strong>Up To 7.5W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVRCamera/ADSLMeet DoE Level 6 ,Etc1. Design for Vin=90~ 264V<strong>AC</strong> SMPS.2. Design for Output Power Up to 7.5W* O/P=3.3V 1.0A 3.3W.* O/P=5.0V 1.0A 5.0W.* O/P=9.0V 0.83A 7.5W* O/P=12V 0.625A 7.5W.3. Build in High Voltage MOSFET* UPS601=600V* UPS701=700V4. OVP, OLP, OTP,UVLO., SCP, OCPcycle by cycle.5. External Soft-Start Pin.6. Constant output power limit control pin Vin.7. Low Start up Current


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D <strong>PWM</strong> Power Switcher Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> Power Switcher (Green Mode)UPSXXX2 Series Power Switcher Comparable TableModelFunctionPINAssignmentSL SD484X OB2354 ST Viper22UPS602 UPS1602 UPS2602 UPS3602 UPS4602 UPS1622MOSFETVdss=600V MINRds(on)=5Ω MAXVdss=600V MINRds(on)=5Ω MAXVdss=650V MINRds(on)=5Ω MAXVdss=650V MINRds(on)=5Ω MAXVdss=650V MINRds(on)=5Ω MAXVdss=650V MINRds(on)=5Ω MAXStart UpPinVcc (3) Pinconnect resistor tohigh voltage andBias circuit.Vcc (3) Pinconnect resistor tohigh voltage andBias circuit.Vcc (2) Pin connectresistor to highvoltage and Biascircuit.Vcc (2) Pinconnect resistor tohigh voltage andBias circuit.Vcc (4) Pin connectto Bias circuit.(HV Start)Soft StartPinSS Pin connect acapacitor to GND.SS Pin connect acapacitor to GND.Build in Soft Start Build in Soft Start Non.ConstantPower LimitConnect Resistorat Vin(2 pin) andHigh Voltage.Build in Build in Build in Build inOCPCurrent sense pin7(CS) and Cycleby Cycle.Current sense pin2(CS) and Cycleby Cycle.Current sense pin7(CS) and Cycle byCycle.Current sense pin4(CS) and Cycleby Cycle.Build in Sense MOSCycle by Cycle.OLP Build in Build in Build in Build in Build inOVPPrimary Side BuildinPrimary Side BuildinPrimary Side BuildinPrimary Side BuildinPrimary Side BuildinUVLOBuild inVTHD(on)=14.2VVcc(min)=8.2VBuild inVTHD(on)=14.2VVcc(min)=8.2VBuild inVTHD(on)=14.2VVcc(min)=8.2VBuild inVTHD(on)=14.2VVcc(min)=8.2VBuild inVTHD(on)=14.2VVcc(min)=8.2VOTP Build in 135℃ Build in 135℃ Build in 135℃ Build in 135℃ Build in 150℃SCP Build in Build in Build in Build in Build inGate DriverCapabilityBuild inFixBuild inFixBuild inFixProgrammingVcc-G (Pin 1)Build inFixZCD Non Non Build in(QR Mode) Non NonDesign O/P * O/P=3.3V 2.0A 6.6W. * O/P=5.0V 2.0A 10W. * O/P=9.0V 1.33A 12W * O/P=12V 1.0A 12W.FrequencyModeEMIStart Up Istr* Standby Mode with Burst Mode at 10% below * Programmable PFM Frequency. (Load at 10% -25% variable).* Fix Frequency by RI pin (<strong>PWM</strong>) (over 25% fix on set frequency.)UTC hopping technology for improved EMI. (±3KHz)


UTC SemiconductorProfessional DesignSupport. Service. Solution.A/D <strong>PWM</strong> Power Switcher Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> Power Switcher (Green Mode)Model No. Application Marketing Description General Design FunctionUPS603UPS703<strong>AC</strong> To <strong>DC</strong>Up To 15W(Burst/PFM/<strong>PWM</strong>)BatteryChargerIndoorappliancePC/DVRCamera/ADSLMeet DoE Level 6 ,Etc1. Design for Vin=90~ 264V<strong>AC</strong> SMPS.2. Design for Output Power Up to 15W* O/P=3.3V 2.4A 8W.* O/P=5.0V 2.4A 12W.* O/P=9.0V 1.67A 15W* O/P=12V 1.25A 15W.3. Build in High Voltage MOSFET* UPS603=600V* UPS703=700V4. OVP, OLP, OTP,UVLO., SCP, OCPcycle by cycle.5. External Soft-Start Pin.6. Constant output power limit control pin Vin.7. Low Start up Current


Support. Service. Solution.A/D <strong>PWM</strong> Power Switcher Introduce<strong>AC</strong> To <strong>DC</strong> <strong>PWM</strong> Power Switcher (Green Mode)UPSXXX4 Series Power Switcher Comparable TableUTC SemiconductorProfessional DesignModelDescriptionFunctionPINAssignmentUPS604UPS1604MOSFETStart Up PinVdss=600V MINRds(on)=2.5Ω MAXVcc (3) Pin connectresistor to high voltageand Bias circuit.Vdss=600V MINRds(on)=2.5Ω MAXVcc (3) Pin connectresistor to high voltageand Bias circuit.Soft Start PinConstantPower LimitOCPSS Pin connect acapacitor to GND.Connect Resistor atVin(2 pin) and HighVoltage.Current sense pin 7(CS)and Cycle by Cycle.SS Pin connect acapacitor to GND.Build inCurrent sense pin 2(CS)and Cycle by Cycle.OLP Build in Build inOVP Primary Side Build in Primary Side Build inUVLOBuild inVTHD(on)=14.2VVcc(min)=8.2VBuild inVTHD(on)=14.2VVcc(min)=8.2VOTP Build in 135℃ Build in 135℃SCP Build in Build inGate DriverCapabilityBuild inFixBuild inFixZCD Non NonDesign O/P * O/P=3.3V 3.0A 10W. * O/P=5.0V 3.0A 15W. * O/P=9.0V 2.66A 24W * O/P=12V 2.0A 24W.FrequencyModeEMIStart Up Istr* Standby Mode with Burst Mode at 10% below * Programmable PFM Frequency. (Load at 10% -25% variable).* Fix Frequency by RI pin (<strong>PWM</strong>) (over 25% fix on set frequency.)UTC hopping technology for improved EMI. (±3KHz)


UTC SemiconductorProfessional DesignSupport. Service. Solution.Green Mode UPS603 12W 12V/1A Demo Board PerformancePCB LAYOUT34mm63mm63mm


UTC SemiconductorProfessional DesignSupport. Service. Solution.Green Mode UPS603 12W 12V/1A Demo Board PerformancePower Consumption☆ DoE Level 6 for O/P at no load power consumption.☆ <strong>AC</strong> Input : From 115V<strong>AC</strong>/60Hz to 230V<strong>AC</strong>/50Hz.☆ Output: At no load (0.0A)☆ Input power ≦0.1W<strong>AC</strong> Input<strong>DC</strong> OutputCurrentSpecificationI/P WResultI/P W115.0V<strong>AC</strong>/60Hz 0.0A ≦ 0.1W 0.0684W230.0V<strong>AC</strong>/50Hz 0.0A ≦ 0.1W 0.0933W


UTC SemiconductorProfessional DesignSupport. Service. Solution.UPS603 12W 12V/1A Demo Board PerformanceEfficiency☆ Measure at end of cable, 22AWG/1.5m.<strong>AC</strong> InputV<strong>AC</strong>/HzIout(1A)Rule AV-EFF(DoE Level 6)ResultPin (W) Pout (W) EFF. (%) AV-EFF. (%)25%3.710 3.023 81.478115.0/6050% 7.269 6.040 83.09079.944%75% 10.854 9.308 85.756100% 14.505 12.019 82.86183.29625%3.866 3.023 78.190230.0/5050% 7.410 6.040 81.50879.944%75% 10.862 9.037 83.198100% 14.324 12.022 83.92981.707


UTC SemiconductorProfessional DesignSupport. Service. Solution.Power Factor Controller Design ReferenceComparable Block Diagram


UTC SemiconductorProfessional DesignSupport. Service. Solution.PFC Controller IntroducePFC Controller <strong>IC</strong> Comparable TableFunctionModelDescriptionUA7527 UA7524 L8561 L8562 8565PINAssignmentWorking ModeCritical ConductionModeCritical ConductionModeCritical ConductionModeCritical ConductionModeContinuous/DiscontinuousConduction ModeStart Up PinVcc (8) Pin connectresistor to highvoltage and Biascircuit.V CC (8) Pin connectresistor to highvoltage and Biascircuit.V CC (8) Pin connectresistor to highvoltage and Biascircuit.Vcc (8) Pin connectresistor to highvoltage and Biascircuit.Vcc (8) Pin connectto <strong>PWM</strong> D/D Biascircuit.Start up timer Build in Build in Build in Build in Build in Soft StartZero CurrentSenseDetectorIdet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.XOCP/OLP/SCPCurrent sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.Current sense pin5(Isense) and Cycleby Cycle.VoltageProtectionO/P with Soft,Dynamic, StaticType (Build in)O/P with Soft,Dynamic, StaticType (Build in)O/P with Triggering,Static Type (Buildin)O/P with Triggering,Static Type (Buildin)Output UnderVoltage.Output OverVoltage.Open Loop. I/PUnder Voltage.VCC(MAX.) 30V 20V Self Limited Self Limited 22VV CC Zener X 17V 18V – 24V 18V – 24V XUVLOV CC OperatingVoltageV THD (on)=10.5 -12.5VV CC (min)=2.0 –4.0VVTHD(on)=9.2 –10.8VV CC (min)=1.8 –2.2VVTHD(on)=14.0 –16.5VV CC (min)=7.2 –8.7VVTHD(on)=14.0 –16.5VV CC (min)=7.2 –8.7VVTHD(on)=10.5 –11.9VV CC (min)=9.4 –10.8VHysteresis 2.0 – 4.0V 1.8 – 2.2V 6.5 – 8.3V 6.5 – 8.3V 0.8 – 1.3VV REF 2.5V 2.5V 2.5V 2.5V MultipleGate Driver Io=500mA Io=500mA Io=400mA Io=400mA Io=1.5AIstr 60uA (Typical) 250uA (Typical) 30uA (Typical) 30uA (Typical) 100uA (Typical)Frequency X X X XPin 4 connectresistor adjustfrequency from50KHz to 250KHz.Application Ballast, SMPS, LED Ballast, SMPS, LED Ballast, SMPS, LED Ballast, SMPS, LED SMPS High PowerDesign O/P ≦150W ≦150W ≦150W ≦150W ≧150W


UTC SemiconductorProfessional DesignSupport. Service. Solution.PFC Controller IntroducePFC Controller <strong>IC</strong> Comparable TableModelDescriptionFunctionFAN6961 (ST) L6561 (ST) L6562(ON) NCP1606(ON) NCP1607(HG)(OB)SN03APINAssignmentWorkingModeBoundary ModeCritical ConductionModeCritical ConductionModeCritical ConductionModeCritical ConductionModeStart UpPinVcc (8) Pin connectresistor to highvoltage and Biascircuit.V CC (8) Pin connectresistor to highvoltage and Biascircuit.V CC (8) Pin connectresistor to highvoltage and Biascircuit.Vcc (8) Pin connectresistor to highvoltage and Biascircuit.Vcc (8) Pin connectresistor to highvoltage and Biascircuit.Start upTimerBuild in Build in Build in Build in Build inZeroCurrentSenseDetectorIdet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.Idet (5) pin connectto currenttransformer.OCP/OLP/SCPCurrent sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.Current sense pin4(CS) and Cycle byCycle.VoltageProtectionO/P with Soft,Dynamic, Static Type(Build in)O/P with Soft,Dynamic, Static Type(Build in)O/P with Triggering,Static Type (Build in)O/P with Triggering,Static Type (Build in)O/P with Triggering,Static Type (Build in)VCC(MAX.)30V 20V Self Limited 20V 32VV CC Zener 26.8V – 28.8V 18V – 22V 22V – 28V X 38VUVLOV CCOperatingVoltageV THD (on)=11.5 -13.5VV CC (min)=8.5-10.5VVTHD(on)=11.0–13.0VV CC (min)=8.7 –10.3VVTHD(on)=11.0 –13.0VV CC (min)=8.7-10.3VVTHD(on)=11.0 –13.0VV CC (min)=8.7 –10.3VVTHD(on)=15.5 –17.5VV CC (min)=8.0 – 9.6VHysteresis X 2.2– 2.8V 2.2– 2.8V 2.2 – 2.8V 7.7VV REF 2.5V 2.5V 2.5V 2.5V 2.5VGate Driver Io=?mA Io=400mA Io(source)=600mA,Io(sink)=800mAIo(source)=500mA,Io(sink)=800mAIo(source)=?,Io(sink)=?Istr 10uA (Typical) 50uA (Typical) 40uA (Typical) 20uA (Typical) 15uA (Typical)Frequency X X X X XApplicationforBallast, SMPS, LED Ballast, SMPS, LED Ballast, SMPS, LED Ballast, SMPS, LED Ballast, SMPS, LEDDesign O/P ≦150W ≦150W ≦150W ≦150W ≦150W


UTC SemiconductorProfessional DesignSupport. Service. Solution.PFC Controller IntroducePFC Controller <strong>IC</strong> Comparable TableFunctionModelPINAssignment(LS)SA7527DescriptionWorking ModeStart Up PinStart up TimerZero CurrentSense DetectorOCP/OLP/ SCPVoltageProtectionVCC (MAX.)V CC Zener VUVLOV CC OperatingVoltageCritical Conduction ModeVcc (8) Pin connect resistorto high voltage and Biascircuit.Build inIdet (5) pin connect tocurrent transformer.Current sense pin 4(CS)and Cycle by Cycle.O/P with Soft, Dynamic,Static Type (Build in)30VXV THD (on)=10.5 - 12.5VV CC (min)=2.0-4.0VHysteresis 2.0 – 4.0VV REF 2.5VGate DriverIstrFrequencyApplicationDesign O/PIo=500mA60uA (Typical)XBallast, SMPS, LED≦150W


UTC SemiconductorProfessional DesignSupport. Service. Solution.UA7527 20W 27V/0.75A Demo Board PerformancePCB LAYOUT18mm250mm


UTC SemiconductorProfessional DesignSupport. Service. Solution.UA7527 20W 27V/0.75A Demo Board PerformanceEfficiency☆ <strong>AC</strong> Input : From 110V<strong>AC</strong>/60Hz to 220V<strong>AC</strong>/50Hz.☆ Output: At full load (0.75A)☆ Efficiency is over 85.00% at full range.<strong>AC</strong> Input<strong>DC</strong> OutputCurrentSpecificationResultEff. % I/P W O/P W Eff. % PF Graphic110.0V<strong>AC</strong>/60Hz 0.75A - 21.478 18.900 87.997 0.972 A220.0V<strong>AC</strong>/50Hz 0.75A - 23.841 20.730 86.951 0.927 BOutput Current Graphic:Graphic A: <strong>AC</strong> Input: 110V<strong>AC</strong>/60Hz , <strong>DC</strong> Output: At 0.75AGraphic B: <strong>AC</strong> Input: 220V<strong>AC</strong>/50Hz , <strong>DC</strong> Output: At 0.75AOutput Rms14.4mAOutput Rms11.9mA


UTC SemiconductorProfessional DesignSupport. Service. Solution.Power Factor Correction and <strong>PWM</strong> <strong>IC</strong> Design ReferenceComparable Block DiagramPFC And <strong>PWM</strong> Combo <strong>IC</strong> Design


Support. Service. Solution.UTC SemiconductorProfessional DesignPFC and <strong>PWM</strong> Combo Controller IntroduceComparable TableFunctionModelDescription7842-1 7842-2 TDA16888PINAssignmentWorkingModePFC with <strong>PWM</strong> ComboPFC=Continuous Conduction ModePFC with <strong>PWM</strong> ComboPFC=Continuous Conduction ModePFC with <strong>PWM</strong> ComboPFC=Continuous/discontinuous ModeFrequencyPFC Frequency = <strong>PWM</strong> Frequency, andadjustment by RAMP 1 (PIN 7) (RtCt)PFC Frequency*2 = <strong>PWM</strong> Frequency andadjustment by RAMP 1 (PIN 7) (RtCt)PFC Frequency = <strong>PWM</strong> FrequencyStart Up PinVcc (13) Pin connect resistor to highvoltage and Bias circuit.Vcc (13) Pin connect resistor to highvoltage and Bias circuit.Vcc (9) Pin connect resistor to high voltageand Bias circuit.Soft Start Adjustment by SS Pin (5) Adjustment by SS Pin (5) Adjustment by SS Pin (13)OCP/OLP/SCPPFC: Current sense pin 3(Isense Pin) andCycle by Cycle.<strong>PWM</strong>: Current sense pin 3(<strong>DC</strong> Ilim Pin)and Cycle by Cycle.PFC: Current sense pin 3(Isense Pin) andCycle by Cycle.<strong>PWM</strong>: Current sense pin 3(<strong>DC</strong> Ilim Pin)and Cycle by Cycle.PFC: Current sense pin 4 and Cycle byCycle.<strong>PWM</strong>: Current sense pin 11 and Cycle byCycle.Over VoltageProtectionPFC: OVP Build in. PFC: OVP Build in. PFC: OVP Build inUVLOPFC and <strong>PWM</strong> : Build inVTHD(on)=13.0VVcc(min)=3.0VPFC and <strong>PWM</strong> : Build inVTHD(on)=13.0VVcc(min)=3.0VPFC and <strong>PWM</strong> : Build inVTHD(on)=14.0VVcc(min)=3.0VBrown-outProtectionGate DriverCapabilityBuild in Build in NoPFC and <strong>PWM</strong>: Io=500mA PFC and <strong>PWM</strong>: Io=500mA PFC and <strong>PWM</strong>: Io=200mAIstr 700uA (Typical) 700uA (Typical) 23uA(Typical)Application for SMPS SMPS SMPSDesign O/P 70W ~ 500W 70W ~ 500W 70W ~ 500W


Support. Service. Solution.Sales and Design Assistance from UTCUTC SemiconductorProfessional DesignPower Adaptor Total SolutionHttp://www.unisonic.com.tw

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