Datasheet

December, 2013 Rev. 1.2

11/13

©

2013 Shaoxing Devechip Microelectronics Co., Ltd.

www.sdc-semi.com

Voltage Mode PWM Controller

SDC2921

Typical Application

R1

R3

R4

C2

R5

C3

R6

C4

R13

R11

R12

R10

R9

R8

R7

C5

C6

C7

R2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

C1

+12V

+5V

VCC

+5V

PG

REMOTE

VCC

VCC

OUT1

OUT2

+12V

+5V

+3.3V

Figure 8. Typical Application

In some application power systems, adding an external resistor (R6) could reduce the peak value spike from the

environments to pin 9 (REM) and avoid pin 9 (REM) damaged by the external noise.

SDC

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