SANKEN SSC2000

SSC2000
Series
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
Continuous Conduction Mode (CCM)
The mode enables the low peak current recommended for high power supplies.
SOP-8
Average Current Control Method
The method requires no input line voltage sensing and no multiplier,
and achieves simple systems with few external components.
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).
Maximum Duty Cycle : 94% (TYP)
Built-in High Speed Response for Dynamic Load Changes
Error Amplifier Reference Voltage : 3.5V (TYP)
Brown-In / Brown-Out Function
The function enables the oscillation start/stop by externally rated input voltage
and makes protections at low input voltage.
Various Protections
Overvoltage Protection (OVP) -------------------------------- Auto-Restart
VCC Undervoltage Lockout (UVLO) -------------------------- Auto-Restart
Overcurrent Protection (OCP) -------------------------------- Auto-Restart
Two Overcurrent Detection Thresholds : Input Current Limitation (OCPL)
Peak Current Limitation (OCPH)
Output Open Loop Detection (OLD)-------------------------- Auto-Restart
■ Applications
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
2010/08
■ Typical Application Circuit
VAC
VOUT
GND
1
2
3
4
GND
GATE
ICOMP
Vcc
IS
VFB
VINS
VCOMP
8
7
External
Power Supply
6
5
SSC2001S
■ Typical Operation Waveforms
Output Power POUT : 250W (380V, 0.66A)
Input Voltage: 85VAC
Input Voltage: 265VAC
VinAC
VinAC
50V/div
100V/div
IinAC
IinAC
5A/div
2A/div
Warning
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.
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.
The user must take responsibility for considering and determining which objects the products in this document are used with.
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.
The contents in this document must not be transcribed or copied without Sanken’s written consent.
SANKEN ELECTRIC CO.,LTD.
2010/08