NCL30082ADMR2G(2013) 查看數據表（PDF） - ON Semiconductor

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NCL30082ADMR2G
(Rev.:2013)

Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back

ON Semiconductor 

NCL30082

SD

ZCD

CS

GND

Over Voltage

Protection

Over Temperature

Protection

Thermal

Foldback

VTF

Qdrv

Zero Crossing Detection

Aux. Winding

Short Circuit Prot.

VVIN offset_OK

CS_shorted Enable

STOP

VDD

VREF

Aux_SCP

Fault

Management

OFF

UVLO

Latch

VCC Management

Internal

Thermal

Shutdown

Aux_SCP

Ipkmax

VVIN VREF

VCC_max

WOD_SCP

BO_NOK

VCC Over Voltage

Protection

VCC

Valley Selection

offset_OK

S Qdrv

Q

Clamp

Circuit

VVLY

R

Line

Feedforward

VTF STOP VREF

Leading

Edge

Blanking

VVIN

Constant−Current

Control

Enable VDIMA

Max. Peak

Current

Limit

Ipkmax

CS_reset

Ipkmax STOP

CS Short

Protection

CS_shorted

Winding and

Output diode

Short Circuit

Protection

WOD_SCP

VDIMA

Dimming

Type

Detection

Enable

VVIN

BO_NOK

Brown−Out

VCC

DRV

DIM

VIN

Figure 2. Internal Circuit Architecture

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