SSC2001S Power Factor Correction Continuous Conduction Mode Controller Features and Benefits Description • Continuous conduction mode (CCM) system: low peak current and suitability for high power applications • Average current control system: no multiplier and few external components allows simple circuit configuration because no input voltage detection required • PWM and frequency modulation functions: PWM operation frequency fixed at 65 kHz (typ) with superimposed variable frequency according to duty cycle • Maximum duty cycle 94% (typ) • Error amplifier reference voltage 3.5 V (typ) • Built-in high speed load response (HSR) function • Brown-in/brown-out protection function: protects the power supply at low input voltages The SSC2001S is a continuous conduction mode (CCM) control IC for power factor correction (PFC). The IC allows the realization of high-power output and high-efficiency power management systems, which require few external components because of the built-in average current control system. Applications: Power factor correction of middle to high power for electronic devices such as: • AC/DC power supplies • Digital appliances for large size LCD/PDP television and so forth • Office automation (OA) equipment for computer, server, monitor, and so forth • Communication facilities Continued on the next page… Package: 8-pin SOP Not to scale Typical Application Diagram D2 VAC Input Filter L1 EN R8 C1 D1 VOUT C2 Q1 R9 R1 GND U1 SSC2001S R2 R6 External power supply 1 GND 8 GATE 2 ICOMP 7 VCC R3 3 IS 6 VFB 4 VINS 5 VCOMP R4 C4 C8 DZ1 C3 SSC2001S-DS C5 SANKEN ELECTRIC CO., LTD. http://www.sanken-ele.co.jp/en/ R5 C7 R7 C6 July 27, 2012 Power Factor Correction Continuous Conduction Mode Controller SSC2001S Features and Benefits (continued) • Protection functions: ▫ Output overvoltage protection (OVP): turns off gate output on pulse-by-pulse basis, with auto restart ▫ Overcurrent protection (OCP): two types, both with auto restart: – VIS(OCPL) : limits power by reducing duty cycle of next cycle after detection – VIS(OCPH) : turns off gate output on pulse-by-pulse basis ▫ Open loop detection (OLD) on output: stops oscillation, and the operation switches to standby mode; auto restart after removal of cause of open loop The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC. Absolute Maximum Ratings, valid at TA = 25°C Characteristic Symbol Pins Rating Unit VCC Pin Voltage VCC VINS Pin Voltage VINS 7−1 −0.3 to 30 V 4−1 −0.3 to 5.5 V V VICOMP 2−1 −0.3 to 5.5 IS Pin Voltage VIS 3−1 −5.5 to 0.3 V IS Pin Current IIS 3−1 −1 to 1 mA VFB Pin Voltage VFB 6−1 −0.3 to 5.5 V VFB Pin Current IFB 6−1 −1 to 1 mA ICOMP Pin Voltage VVCOMP 5−1 −0.3 to 5.5 V GATE Pin voltage VCOMP Pin voltage VGATE 8−1 −0.3 to 30 V Frame Temperature during Operation TFOP − −40 to 110 °C Storage Temperature Tstg − −40 to 125 °C Junction Temperature TJ − −40 to 150 °C SSC2001S-DS SANKEN ELECTRIC CO., LTD. 2 July 27, 2012 Power Factor Correction Continuous Conduction Mode Controller SSC2001S Electrical Characteristics Unless specifically noted, TA is 25°C, VCC = 15 V Characteristic Symbol Test Conditions Pins Min. Typ. Max. Unit Power Supply Start-up Operation Operation Start Voltage VCC(ON) 7−1 10.5 11.3 12.1 V Operation Stop Voltage VCC(OFF) 7−1 9.5 10.3 11.1 V Operation Voltage Hysteresis VCC(HYS) 7−1 0.7 0.9 1.1 V Circuit Current in Non-Operation ICC(OFF) 7−1 30 100 200 μA Circuit Current in Operation Circuit Current in Standby VCC = 10 V ICC(ON) ICC(STANDBY) VFB = 0.5 V 7−1 6.0 9.0 12.0 mA 7−1 2.0 4.0 6.0 mA Oscillator Operation Oscillating Frequency fOSC VIS = 0 V, VVCOMP = 4 V 8−1 57 65 70 kHz Maximum Duty Cycle DMAX VIS = 0 V, VVCOMP = 4 V 8−1 90 94 99.3 % DMIN VIS = 0.5 V, VVCOMP = 0 V Minimum Duty Cycle 8−1 − − 0 % tOFFMIN 8−1 150 250 350 ns VFB Pin Open Loop Detection Threshold Voltage VFB(OLD) 6−1 0.51 0.55 0.59 V VFB Pin Overvoltage Protection Threshold Voltage VFB(OVP) 6−1 3.57 3.745 3.85 V IS Pin Overcurrent Protection High Threshold Voltage VIS(OCPH) 3−1 −0.81 −0.75 −0.69 V IS Pin Overcurrent Protection Low Threshold Voltage VIS(OCPL) 3−1 −0.54 −0.5 −0.46 V VINS Pin Input Undervoltage Protection Low Threshold Voltage VINS(L) 4−1 0.51 0.55 0.59 V VINS Pin Input Undervoltage Protection High Threshold Voltage VINS(H) 4−1 0.94 1.0 1.08 V IVINS(BIAS) 4−1 −1.0 − 0 μA Current Amplifier Transconductance Gain gmCA − 1.1 1.4 1.7 ms Current Amplifier Output Source Current* ICA(SO) − − −50 − μA Current Amplifier Output Sink Current* ICA(SK) − − 50 − μA 2−1 3.6 4.0 4.3 V Minimum Off-Time* Protection Operation VINS Pin Input Undervoltage Protection Bias Current VVINS = 0 V Current Loop ICOMP Pin Output Open Loop Detection Threshold Voltage VICOMP(OLD) VFB=0.5V Continued on the next page… SSC2001S-DS SANKEN ELECTRIC CO., LTD. 3 July 27, 2012 Power Factor Correction Continuous Conduction Mode Controller SSC2001S Electrical Characteristics (continued) Unless specifically noted, TA is 25°C, VCC = 15 V Characteristic Symbol Test Conditions Pins Min. Typ. Max. Unit 6−1 3.4 3.5 3.6 V Voltage Loop Error Amplifier Reference Voltage VFB(REF) Error Amplifier Transconductance Gain gmEA − 45 60 75 μs Error Amplifier Maximum Source Current IVCOMP(SO) 5−1 −38 −30 −21 μA Error Amplifier Maximum Sink Current IVCOMP(SK) 5−1 21 30 38 μA VFB Pin High Speed Load Response Operation Enable Voltage* VFB(HSR)ENABLE 6−1 − 3.4 − V VFB Pin High Speed Load Response Operation Start Voltage VFB(HSR)ACTIVE 6−1 3.24 3.325 3.41 V VCOMP Pin High Speed Load Response Source Current IVCOMP(SOHSR) 5−1 −127 −100 −72 μA IFB(BIAS) 6−1 − − 1 μA 5−1 0.60 1.03 1.40 V VFB Pin Input Bias Current VCOMP Pin Output Open Loop Detection Threshold Voltage IVCOMP = 0 μA VVCOMP(OLD) VFB = 0.5 V Drive Circuit GATE Pin Voltage (Low) VGATE(L) IGATE = −20 mA 8−1 − − 0.4 V GATE Pin Voltage (High) VGATE(H) VCC = 11 V 8−1 − 10.5 − V GATE Pin Rise Time tr 8−1 − 100 − ns GATE Pin Fall Time tf 8−1 − 50 − ns GATE Pin Peak Source Current* IGATE(SO) 8−1 − −0.5 − A GATE Pin Peak Sink Current* IGATE(SK) 8−1 − 1.0 − A − − 65 85 °C/W Thermal Characteristics Thermal Resistance from Junction to Frame RθJ-F The frame temperature, TF , is specified by using the temperature at the base of pin 1. *Determined by design, not tested in production. SSC2001S-DS SANKEN ELECTRIC CO., LTD. 4 July 27, 2012 Power Factor Correction Continuous Conduction Mode Controller SSC2001S Functional Block Diagram VCC Reg 7 Oscillator UVLO OLD Input Low Voltage Detection IS 3 OCP(H) OCP(L) ICOMP 2 Gate Driver Protection PWM Logic 8 GATE OCP(H) OVP PWM Logic Ramp Generator Protection Input Low Voltage Detection Protection OLD PWM Logic OVP 4 VINS 6 VFB Error AMP Current AMP HSR GND 1 5 GND VCOMP Pin List Table Name Number 1 GND Function 2 ICOMP 3 IS 4 VINS 5 VCOMP 6 VFB Output constant voltage control signal/output overvoltage signal/output open loop detection signal input 7 VCC Control circuit power supply input 8 GATE Gate drive output Ground Current amplifier output Overcurrent detection signal input Low-voltage detection signal input (brown-in/brownout protection function) Error amplifier output/phase compensation SSC2001S-DS SANKEN ELECTRIC CO., LTD. 5 July 27, 2012 Power Factor Correction Continuous Conduction Mode Controller SSC2001S Package Diagram SOP8 5.2 ±0.3 1 0.695 TYP 6.2 ±0.3 5 4.4 ±0.2 8 4 0 to 10° 0.05 ±0.05 1.27±0.05 0.10 0.12 M +0.1 0.15 –0.05 1.5 ±0.1 5.25 ±0.3 0.4±0.2 0.4±0.1 Unit： mm SC2001 SK YMD Pb-free. Device composition compliant with the RoHS directive. XXXX Part Number Lot Number Y is the last digit of the year (0 to 9) M is the month (1 to 9, O, N, or D) D is a period of days (1 to 3): 1 – 1st to 10th 2 – 11th to 20th 3 – 21st to 31st Sanken Control Number SSC2001S-DS SANKEN ELECTRIC CO., LTD. 6 July 27, 2012 SSC2001S Power Factor Correction Continuous Conduction Mode Controller Because reliability can be affected adversely by improper storage environments and handling methods, please observe the following cautions. Cautions for Storage • Ensure that storage conditions comply with the standard temperature (5°C to 35°C) and the standard relative humidity (around 40% to 75%); avoid storage locations that experience extreme changes in temperature or humidity. • Avoid locations where dust or harmful gases are present and avoid direct sunlight. • Reinspect for rust on leads and solderability of the products that have been stored for a long time. Cautions for Testing and Handling When tests are carried out during inspection testing and other standard test periods, protect the products from power surges from the testing device, shorts between the product pins, and wrong connections. Ensure all test parameters are within the ratings specified by Sanken for the products. Soldering When soldering the products, please be sure to minimize the working time, within the following limits: 260 ± 5°C 10±1 s (Flow, 2 times) 380±10°C 3.5±0.5 s (Soldering iron, 1 time) Electrostatic Discharge • When handling the products, the operator must be grounded. Grounded wrist straps worn should have at least 1 MΩ of resistance from the operator to ground to prevent shock hazard, and it should be placed near the operator. • Workbenches where the products are handled should be grounded and be provided with conductive table and floor mats. • When using measuring equipment such as a curve tracer, the equipment should be grounded. • When soldering the products, the head of soldering irons or the solder bath must be grounded in order to prevent leak voltages generated by them from being applied to the products. • The products should always be stored and transported in Sanken shipping containers or conductive containers, or be wrapped in aluminum foil. SSC2001S-DS SANKEN ELECTRIC CO., LTD. 7 July 27, 2012 SSC2001S Power Factor Correction Continuous Conduction Mode Controller • The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the latest revision of the document before use. • Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or any other rights of Sanken or any third party which may result from its use. • Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. • Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest Sanken sales representative to discuss, prior to the use of the products herein. The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. • In the case that you use Sanken products or design your products by using Sanken products, the reliability largely depends on the degree of derating to be made to the rated values. Derating may be interpreted as a case that an operation range is set by derating the load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. In general, derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stresses such as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor products. For these stresses, instantaneous values, maximum values and minimum values must be taken into consideration. In addition, it should be noted that since power devices or IC's including power devices have large self-heating value, the degree of derating of junction temperature affects the reliability significantly. • When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance and proceed therewith at your own responsibility. • Anti radioactive ray design is not considered for the products listed herein. • Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken's distribution network. • The contents in this document must not be transcribed or copied without Sanken's written consent. SSC2001S-DS SANKEN ELECTRIC CO., LTD. 8 July 27, 2012