CXA3809 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA3809

AC-DC Controller

Sony Semiconductor 

CXA3809M

Pin

No.

Symbol

5 PFC_ZCD

I/O

Standard pin

voltage

Equivalent circuit

Description

VCC

VREF

Nch

I 4.4V to 0.6V

PFC_ZCD

5

PFC zero current detect input

(Connect to boost inductor of

auxiliary winding)

Pch

Pch

SGND

6 PFC_CS

VREF

I VREF to GND

PFC_CS

6

PFC current sense input

(Connect to the detection side

Pch

of current sense resistor)

SGND

7 PFC_VAO

VREF

O 3.2V to GND PFC_VAO

7

Pch

Pch PFC voltage control error

amplifier output

(Connect a phase

compensation circuit: between

PFC_VAO and GND)

Nch Nch

Pch

SGND

VREF

Pch

VREF to GND

8 PFC_VSENSE I During steady- PFC_VSENSE

state: 2.5V

8

PFC output voltage sense

input

Pch (Connect to PFC output

detection resistor)

SGND

9 PFC_OVP

VREF

Pch

VREF to GND

I During steady- PFC_OVP

state: 2.5V

9

Pch

Nch

SGND

PFC output overvoltage sense

input

(Connect to PFC output

detection resistor)

-7-

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