NCL30088CDR2G datasheet(4/26 Pages) ONSEMI

Part #	NCL30088CDR2G

Description	Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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NCL30088

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4

Internal Circuit Architecture

SD

Thermal

Foldback

Over Temp. Protection

Over Voltage Protection

ZCD

Zero Crossing Detection Logic

(ZCD Blanking, Time−Out, ...)

Valley Selection

CS

Power Factor and

Constant−Current

Control

Leading

Edge

Blanking

Winding and

Output diode

Short Circuit

Protection

Max. Peak

Current

Limit

Ipkmax

WOD_SCP

DRV

VCC Management

VCC

DRV

VCC Over Voltage

Protection

VCC

Internal

Thermal

Shutdown

(Auto−recovery or Latched)

Fault

Management

Clamp

Circuit

VS

Brown−Out

BO_NOK

S

R

Q

CS_reset

STOP

UVLO

OFF

Latch

STOP

WOD_SCP

BO_NOK

GND

STOP

Aux. Winding Short Circuit Prot.

Aux_SCP

VCC_max

FF_mode

V

Line

feed−forward

VS

VVS

Ipkmax

VTF

VREF

VDD

VREF

VVS

Enable

CS Short

Protection

CS_ok

Frequency Foldback

FF_mode

Maximum

on time

TF

V

UVLO

on,max

t

on,max

t

VVS

REF

V

COMP

Figure 3. Internal Circuit Architecture

TF

V

(Auto−recovery or Latched)

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NCL30088CDR2G Datasheet(PDF) 4 Page - ON Semiconductor

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