© Semiconductor Components Industries, LLC, 2015
February, 2015 − Rev. 2
1 Publication Order Number:
NCL30086/D
NCL30086
Analog/Digital Dimmable
Power Factor Corrected
Quasi-Resonant Primary
Side Current-Mode
Controller for LED Lighting
The NCL30086 is a power factor corrected flyback controller
targeting isolated and non−isolated “Smart−dimmable” constant
current LED drivers. The controller operates in a quasi−resonant mode
to provide optimal efficiency. The current control algorithm supports
flyback, buck−boost, and SEPIC topologies. Thanks to a novel control
method, the device is able to tightly 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 is specifically intended for very compact space
efficient designs and supports analog and PWM dimming with a
dedicated dimming input intended to control the average LED current. To
ensure reliable operation at elevated temperatures, a user configurable
current foldback circuit is also provided. The NCL30086 is housed in
the SOIC10 which has the same body size as a standard SOIC8.
Features
• Quasi−resonant Peak Current−mode Control Operation
• Constant Current Control with Primary Side Feedback
• Tight LED Constant Current Regulation of ±2% Typical
• Power Factor Correction
• Analog or PWM dimming
• Line Feedforward for Enhanced Regulation Accuracy
• Low Start−up Current (10 mA typ.)
• Wide V
cc
Range
• 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp
• Robust Protection Features
♦ Brown−Out Detection
♦ OVP on V
CC
♦
Programmable Over Voltage / LED Open Circuit
Protection
♦ Cycle−by−cycle Peak Current Limit
♦ Winding Short Circuit Protection
♦ Secondary Diode Short Protection
♦ Output Short Circuit Protection
♦ Current Sense (CS) Short Detection
♦ User programmable NTC Based Thermal Foldback
♦ Thermal Shutdown
• −40 to 125°C Operating Junction Temperature
• Pb−Free, Halide−Free Product
• Four Versions: NCL30086A, B, C and D (See Table 1)
Typical Applications
• Integral LED Bulbs
• LED Light Engines
• LED Driver Power Supplies
• Smart LED Lighting Applications
SOIC−10
CASE 751BQ
PIN CONNECTIONS
MARKING DIAGRAM
(Top View)
See detailed ordering and shipping information in the package
dimensions section on page 27 of this data sheet.
ORDERING INFORMATION
NC
V
CC
DRV
GND
DIM
1
CS
VS
COMP
ZCD
SD
L30086x = Specific Device Code
x = A, B, C, D
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb-Free Package
L30086x
ALYW
G
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