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Power Factor Correction (PFC) Controller IC of Continuous Conduction Mode (CCM) type, for High Power-High Efficiency Applications ■ General Descriptions The SSC2000 series products are power factor correction (PFC) controller ICs of Continuous Conduction Mode (CCM). The product achieves high power CCM systems, with few external components and no multiplier by the average current control method. ■ Features /circle6 Continuous Conduction Mode (CCM) The mode enables the low peak current recommended for high power supplies. /circle6 Average Current Control Method The method requires no input line voltage sensing and no multiplier, and achieves simple systems with few external components. /circle6 Pulse Width Modulation (PWM) + Frequency Modulation Function The function superposes the modulated frequency according to Duty value, on the internally fixed PWM frequency of 65 kHz(TYP). /circle6 Maximum Duty Cycle : 94% (TYP) /circle6 Built-in High Speed Response for Dynamic Load Changes /circle6 Error Amplifier Reference Voltage : 3.5V (TYP) /circle6 Brown-In / Brown-Out Function The function enables the oscillation start/stop by externally rated input voltage and makes protections at low input voltage. /circle6 Various Protections Two Overcurrent Detection Thresholds : Input C urrent Limitation (OCPL) Peak Current Limitation (OCPH) ■ Applications /circle6 Power Factor Correction Circuits for Middle to High Output Power Applications AC/DC Power Supplies, Digital Consumer Equipments; Large Screen LCD-TVs, PDP-TVs, etc., OA Equipments; Computers, Severs, Monitors, etc., Communication Devices, Others ■ Product Lineup Product No Package SSC2001S SOP8
SANKEN ELECTRIC CO.,LTD. Warning /circle6 The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the latest version of the document before use. /circle6 The operation and circuit examples in this document are provided for reference purposes only. Sanken assumes no liability for violation of industrial property, intellectual property, or other rights of Sanken or third parties, that stem from these examples. /circle6 The user must take responsibility for considering and determining which objects the products in this document are used with. /circle6 Although Sanken will continue to improve the quality and reliability of its products, semiconductor products, by their nature, have certain fault and failure rates. The user must take responsibility for designing and checking to secure the device and system so that a part failure may not lead to human injury, fire, damages, or other losses. /circle6 The contents in this document must not be transcribed or copied without Sanken’s written consent. ■ Typical Application Circuit Typical Operation Waveforms Output Power P OUT : 250W (380V, 0.66A) Input Voltage: 265VAC Input Voltage: 85VAC VinAC 50V/div IinAC 5A/div VinAC 100V/div IinAC 2A/div OO OOUU UUTT TTVV VV II IICC CCOO OOMM MMPP PP II IISS SS VV VVII IINN NNSS SS GG GGAA AATT TTEE EE VV VVcc cccc cc VV VVFF FFBB BB VV VVCC CCOO OOMM MMPP PP GG GGNN NNDD DD 11 11 22 22 33 33 44 44 88 88 77 77 66 66 55 55 GG GGNN NNDD DD VV VVAA AACC CC PP PPoo ooww wwee eerr rr SS SSuu uupp pppp ppll llyy yy EE EExx xxtt ttee eerr rrnn nnaa aall ll SS SSSS SSCC CC22 2200 0000 0011 11SS SS