NCP1616 データシートの表示（PDF） - ON Semiconductor

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NCP1616

High Voltage High Efficiency Power Factor Correction Controller

ON Semiconductor 

NCP1616

Line OVP

Blank Delay

Line_OVP (NCP1616A1 only)

UVP1

FB Logic

SoftOVP

DRE

Line Removal Line Removal

HV

Detector

In_Regulation

BO_NO K Brownout

V FOVP

Vrestart

FOVP

Restart_OK

Thermal

Shutdown

LLine

ISENSE

Detector

Line Sense

Detector

FB

Control

V BUV

BUV

VDD

DRE

VDD

VREF

Error

Amplifier

VDD

Upper

Clamp

OCP

staticOVP

OverStress

Line_OVP

Standby

FOVP

BUV

StaticOVP

Lower

Clamp BO

OFF

Level

Shift

DT

Restart_OK

SKIP

Standby

softOVP

LLine

V REGUL

Vton

Processing

Circuitry

Internal

Timing

Ramp

DRV

Vton OFF

UVP1

Latch

Restart_OK

PFC_OK

PWM

PWM

Comparator

In_Regulation S

PFC_OK Clear R

STDBY/

FAULT

VDD

IFault(bias)

OVP

Comparator

+

Blanking

Delay

(tdelay(OVP))

− VFault(OVP)

Latch OCP

OverStress

VREF

VDD

IREF

Regulator

ICC(discharge)

VCC

CENTRAL

LOGIC

VCC(reset)

PFC_OK Clear

Vton OFF

OFF

BO

STOP

CLK S

PWM

STOP

R

VCC(on)/VCC(off)

VCC

Clamp

Q

DRV

GND

PFC_OK

Q

DT

CLK

SKIP

ISENSE VREGUL OverStress

Current Information

Generator and

dead−time control

FFcontrol

LLline DRV ZCD

DRV

Detection

of excessive

current

VDD

Current Limit DRV toff1

Comparator LEB

tOCP(LEB)

VOCP

DRV

VDD

CS/ZCD

+

Vstandby −

PFC_OK

Standby

ZCD

ZCD

Comparator

LEB

tOVS(LEB)

VZCD(rising)/

VZCD(falling)

Figure 2. Functional Block Diagram

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