Samsung BN44-00554B, SSC2001S Schematic
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.
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
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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
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Product Lineup
SOP-8
Product No Package
SSC2001S SOP8
2010/08
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Typical Application Circuit
VVVVAAAACCCC
1111
2222
3333
4444
GGGGNNNNDDDD
IIIICCCCOOOOMMMMPPPP
IIIISSSS
VVVVIIIINNNNSSSS
GGGGAAAATTTTEEEE
VVVVcccccccc
VVVVFFFFBBBB
VVVVCCCCOOOOMMMMPPPP
SSSSSSSSCCCC2222000000001111SSSS
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Typical Operation Waveforms
Output Power P
Input Voltage: 85VAC
: 250W (380V, 0.66A)
OUT
VinAC
50V/div
IinAC
5A/div
8888
7777
6666
5555
EEEExxxxtttteeeerrrrnnnnaaaallll
PPPPoooowwwweeeerrrr SSSSuuuuppppppppllllyyyy
Input Voltage: 265VAC
VinAC
100V/div
IinAC
2A/div
VVVV
GGGGNNNNDDDD
OOOOUUUUTTTT
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.
Warning
SANKEN ELECTRIC CO.,LTD.
2010/08
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