SSC2001S: Power Factor Correction Continuous Conduction Mode Controller

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.

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  • 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
  • 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

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Product Image Functional Block Diagram Typical Application

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
SSC2001S 8-lead MSOP -40°C to 125°C Yes View Data New Contact your
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