R2A20114BFP

R03DS0101EJ0100 Rev.1.00

Page 2 of 15

Nov. 8, 2016

Pin Arrangement

Pin Description

Pin No.

Pin Name

Function

1

PWM_IN

PWM signal input terminal

2

PWM_CNTL

PWM signal input mode switching terminal

3

VREF

Reference voltage output terminal

4

BO

Brownout input terminal

5

VAC

AC voltage input terminal

6

PD

Phase drop input terminal

7

AGND

Analog ground

8

E-DELAY

Delay of the error signal setting terminal

9

E_OCP

OCP error signal output terminal

10

E_OVP

OVP2 error signal output terminal

11

E_PHASE

PHASE error signal output terminal

12

OFF

Shutdown terminal

13

RS

Current correction setting resistor connecting terminal

14

SS

Soft start setting capacitor connecting terminal

15

COMP

Error amplifier output terminal (to be phase-compensated)

16

V_CNTL

DC voltage input terminal to control PFC boost voltage

17

FB

Error amplifier output terminal (feedback voltage input terminal)

18

OVP2

OVP2 input terminal

19

N.C.

Open

20

TIMER

ERROR pulse width & OFF latch auto-reset time setting capacitor

connecting terminal

21

IRAMP

Ramp waveform setting resistor connecting terminal

22

CSO2

Current sense amplifier 2 output terminal (to be phase-compensated)

23

CSO1

Current sense amplifier 1 output terminal (to be phase-compensated)

24

CS2

Current sense 2 ＋input terminal

25

CS2_GND

Current sense 2 －input terminal

26

CS1_GND

Current sense 1 －input terminal

27

CS1

Current sense 1 ＋input terminal

28

VCC

Supply voltage terminal

29-31

N.C.

Open

32

GD2

Converter 2 power MOSFET drive terminal

33

PGND

Power ground

34

GD1

Converter 1 power MOSFET drive terminal

35

N.C.

Open

36

SYNC-O

Synchronization signal output terminal

37

RT/SYNC

Frequency setting resistor connecting/Sync. Signal input terminal

38

CT

Frequency setting capacitor connecting terminal

39,40

N.C.

Open

1

CSO1

VCC

CS1

N.C.

CS2

2

CS2_GND

E-DELAY

3

4

5

6

7

8

29

30

28

27

26

25

24

23

E_OCP

9

10

22

21

VREF

AGND

PWM_IN

BO

CS1_GND

VAC

PD

N.C.

PWM_CNTL

(Top view)

E_OVP

IRAMP

CSO2