NCL30082B1 datasheet(1/35 Pages) ONSEMI

Part #	NCL30082B1

Description	Dimmable Quasi-Resonant Primary Side Current-Mode Primary Side Current-Mode

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Manufacturer	ONSEMI [ON Semiconductor]

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January, 2015 − Rev. 5

1

Publication Order Number:

NCL30082/D

NCL30082

Dimmable Quasi-Resonant

Primary Side Current-Mode

Controller for LED Lighting

with Thermal Fold-back

The NCL30082 is a PWM current mode controller targeting isolated

flyback and non−isolated constant current topologies. The controller

operates in a quasi−resonant mode to provide high efficiency. Thanks

to a novel control method, the device is able to precisely regulate a

constant LED current from the primary side. This removes the need

for secondary side feedback circuitry, biasing and an optocoupler.

The device is highly integrated with a minimum number of external

components. A robust suite of safety protection is built in to simplify

the design. This device supports analog/digital dimming as well as

thermal current fold−back. While the NCL30082 has integrated fixed

overvoltage protection, the designer has the flexibility to program a

lower OVP level.

Features

• Quasi−resonant Peak Current−mode Control Operation

• Primary Side Sensing (no optocoupler needed)

• Wide VCC Range

• Source 300 mA / Sink 500 mA Totem Pole Driver with 12 V Gate

Clamp

• Precise LED Constant Current Regulation ±1% Typical

• Line Feed−forward for Enhanced Regulation Accuracy

• Low LED Current Ripple

• 250 mV ±2% Guaranteed Voltage Reference for Current Regulation

• ~0.9 Power Factor with Valley Fill Input Stage

• Low Start−up Current (13 mA typ.)

• Analog or Digital Dimming

• Thermal Fold−back

• Wide Temperature Range of −40 to +125°C

• Pb−Free, Halide−Free MSL1 Product

• Robust Protection Features

♦ Over Voltage / LED Open Circuit Protection

♦ Over Temperature Protection

♦ Secondary Diode Short Protection

♦ Output Short Circuit Protection

♦ Shorted Current Sense Pin Fault Detection

♦ Latched and Auto−recoverable Versions

♦ Brown−out

♦ VCC Under Voltage Lockout

♦ Thermal Shutdown

• These Devices are Pb−Free and Halogen Free/BFR Free

Typical Applications

• Integral LED Bulbs

• LED Power Driver Supplies

• LED Light Engines

www.onsemi.com

PIN CONNECTIONS

See detailed ordering and shipping information on page 33 of

this data sheet.

ORDERING INFORMATION

Micro8

DM SUFFIX

CASE 846A

MARKING DIAGRAMS

AAx

= Specific Device Code

x

= C, D or H

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)

AAx

AYW

G

1

8

DIM

VIN

VCC

DRV

SD

ZCD

CS

GND

(Top View)

1

8

SOIC−8

D SUFFIX

CASE 751

L30082x = Specific Device Code

x

= B, B1, B2, B3, D

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

L30082x

ALYW

G

1

8

1

8

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