CXA3809M Ver la hoja de datos (PDF) - Sony Semiconductor

Número de pieza

componentes Descripción

Fabricante

CXA3809M

AC-DC Controller

Sony Semiconductor 

CXA3809M

Block Diagram

PFC_OUT PGND

VCC

RM_OUTP

1

19

20

24

VCC

AC_DETOUT 23

AC_DETOUT

Band Gap

Reference

VBGR 1.3V

VREF 5V

VREF

UVLO

Enable

11.0V/9.6V

22 RM_OUTN

VCC

PFC_OK 21

AC_DETIN 3

5.5V

VREF_OVLO

VBGR

VREF_OK

4.0V

VREF_UVLO

VCC

VBGR

TSD Common Ref

PFC_OK

AC INPUT Detector

NG Latch

AC_DETOUT

PFC_EN

PFC_OK

VREF_OK

PFC

Driv cnt

PFC

Control

Logic

VREF_OK

RM

Driv cnt

RM

Control

Logic

TSD NG

STNBY

Normal

8.0V

2 MODE

5.4V

VREF

17 VREF

RM_Stop

NG_Latch

PFC_VSENSE

1.883V

11 RM_OFFADJ

AC_VRMS 4

PFC_ZCD 5

Clamp

4.4V/0.6V

ZCD_Comp

1.5V/1.3V

Restart Timer

PFC_DRV

Leading Edge

Blanking

PFC_CS 6

0.5V

CS_Comp

PFC_TONMAX 10

PFC_VAO 7

150µA

PFC_DRVOFF

PWM_COMP

PFC_VSENSE 8

2.5V

VAO_Clamp

Voltage_Amp

RM_EN

VREF

0.1µA

VREF

PFC_OVP 9

0.1µA

PFC_EN

4.0V

1.95V/1.75V

PFC_CS_Det

COMMON

Control

Logic

RM_EN

SQ

RQ

oc_ng

RM_CS2 Det

+0.175V

RM_CS1 Det

+0.22V

–0.25V

0V

BACK_FLOW

Det

2.922V

PFC_OVP1

NG Latch

PFC_STOP

Resonant Mode

Switching

Regulator

Ref for

RM_CS_det

2.700V

2.600V

PFC_RESTART

RM

Oscillator

Fmin

Control

PFC_NONACT_Det

2.400V

RM_Start

Dead Band

Pulse 300ns

VREF

2.143V

0.300V

Short_Det

SS_FINISH

2.4V

NG Latch

VREF

60µA

oc_ng

2.5V

125kΩ

2.922V

OVP1

RM_CSNG

4.0V

10µA

14 RM_CS

15 RM_CSGND

12 RM_FMIN

16 RM_RT

13 RM_SS

Power Factor

Correction Control

18

SGND

-3-

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