SANKEN ELECTRIC CO., LTD.

http://www.sanken-ele.co.jp/en/

Description

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.

Features and Benefits

• 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

Power Factor Correction

Continuous Conduction Mode Controller

Typical Application Diagram

Package: 8-pin SOP

Not to scale

Continued on the next page…

SSC2001S

July 27, 2012

SSC2001S-DS

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

VAC

C1

R1

R6

GND

VOUT

R7

C7

C6

R5

C5

C8

C2

D2

R9

R8

Q1

L1

D1

R2

R3

R4

C4

C3

1 GND

2 ICOMP

3 IS

4 VINS

8 GATE

7 VCC

6 VFB

5 VCOMP

SSC2001S

U1

External power

supply

DZ1

Input

Filter