CM6824IS datasheet(3/18 Pages) ETC1

Part #	CM6824IS

Description	LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO

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CM6824

LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO

2002/09/20

Preliminary Rev. 1.1

Champion Microelectronic Corporation

Page 3

BLOCK DIAGRAM

10

GND

350

1.5V

VCC

1.0V

+

-

PFC ILIMIT

PWM

CMP

7.5V

REFERENCE

PFCOUT

DUTY CYCLE

LIMIT

VCC

GND

6

VDC

GMv

+

-

.

3.5K

4

VRMS

PULSE

WIDTH

MODULATOR

-1V

3.5K

9

DC ILIMIT

S

R

Q

VCC

13

VCC

15

VFB

SS CMP

VREF

S

R

Q

0.5V

SW SPST

GAIN

MODULATOR

DC ILIMIT

PFC OVP

+

-

.

2

IAC

19.4V

SW SPST

350

VIN OK

+

-

.

MNPWM

PWMOUT

GND

VCC

14

VREF

S

R

Q

MPPWM

+

-

VCC OVP

20uA

8

RAMP2

OSCILLATOR

5

SS

7

RAMP1

GMi

+

-

.

VFB

CM6824(ON:15V/OFF:10V)

+

-

SW SPST

UVLO

S

R

Q

12

PFC OUT

11

PWM OUT

PWM

DUTY

POWER

FACTOR

CORRECTOR

3

ISENSE

2.75V

MPPFC

MNPFC

CLK

LOW POWER

DETECT

2.5V

PFC CMP

16

VEAO

Vcc

2.45V

1

IEAO

ORDERING INFORMATION

Part Number

Temperature Range

Package

CM6824IP

-40℃ to 125℃

16-Pin PDIP (P16)

CM6824IS

-40℃ to 125℃

16-Pin Wide SOP (S16)

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