NCL30080: Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

The NCL30080 is a PWM current mode controller targeting isolated flyback and non-isolated buck-boost 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.

Features

Primary Side Sensing
Wide Vcc Range
Precise LED Current Regulation of 1% typical
∼ 0.9 PF with passive valley fill
Open and shorted output protection
Secondary Diode Short Protection
Wide Temperature range of -40 to 125 °C
Shorted Current Sense Fault Detection
Input Line Voltage Sensing
Auto-recoverable and Latched versions

Benefits

No opto-coupler or secondary control circuitry
Simplifies support for broad range of LED forward voltages
No need for binned forward voltage LEDs or production trimming
Meets US Energystar® Integral LED Bulb Requirements
Robust fault handling
Avoids overheating in fault mode
Supports outdoor and high temperature environments
Robust Fault Handling
Enhanced Regulation Accuracy
Flexible Fault Handling

Applications

Integrated LED Drive Electronics

End Products

LED Bulbs
LED Power Supply Drivers
LED Light Engines

Design & Development Tools (1)

Document Title	Document ID/Size	Revision	Revision Date
NCL3008x Design Worksheet	NCL3008X DWS.XLS (57.0kB)	0

Application Notes (3)

Document Title	Document ID/Size	Revision	Revision Date
Circuit Design and PCB Layout Guidelines for Designs Using the NCP108x	AND9133/D (60kB)	1	Mar, 2015
Designing a LED Driver with the NCL30080/81/82/83	AND9131/D (534kB)	1	Dec, 2014
Performances of a LED Driver Driven by the NCL30080/81/82/83	AND9132/D (322.0kB)	0

Evaluation Board Documents (5)

Document Title	Document ID/Size	Revision
3.6 W Flyback 3 LED Step Dimmable Driver NCL30081LEDGEVB Evaluation Board User's Manual	EVBUM2175/D (1306.0kB)	0
NCL30081LEDGEVB Bill of Materials ROHS Compliant	NCL30081LEDGEVB_BOM_ROHS.PDF (50.0kB)	7
NCL30081LEDGEVB Gerber Layout Files (Zip Format)	NCL30081LEDGEVB_GERBER.ZIP (24.0kB)	3
NCL30081LEDGEVB Schematic	NCL30081LEDGEVB_SCHEMATIC.PDF (192.0kB)	0
NCL30081LEDGEVB Test Procedure	NCL30081LEDGEVB_TEST_PROCEDURE.PDF (74.0kB)	0

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Compact Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting	NCL30080/D (204kB)	3

Package Drawings (1)

Document Title	Document ID/Size	Revision
TSOP-6	318G-02 (64.1kB)	V

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
NCL30081LEDGEVB	Active	Pb-free	Flyback Compact GU10 4W Current Mode Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NCL30080ASNT1G	Active	Pb-free Halide free	TSOP-6	318G-02	1	Tape and Reel	3000	$0.25
NCL30080BSNT1G	Active	Pb-free Halide free	TSOP-6	318G-02	1	Tape and Reel	3000	$0.25