NCL30080 Datasheet, PDF (1/21 Pages) ON Semiconductor – Quasi-Resonant Primary Side Current-Mode Side Current-Mode

NCL30080
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Quasi-Resonant Primary
Side Current-Mode
Controller for LED Lighting
The NCL30080 is a PWM current mode controller targeting isolated
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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 wide V_CC range simplifies the design process and
allows a single design to support a wide LED forward voltage range. A
1
TSOP−6
SN SUFFIX
CASE 318G
robust suite of safety protection is built in to simplify the design. This
device is specifically intended for very compact space efficient
MARKING DIAGRAM
designs
Features
AAxAYWG
G
• Quasi−resonant Peak Current−mode Control Operation
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• Primary Side Sensing (no optocoupler needed)
• Wide V_CC Range
• Precise LED Constant Current Regulation ±1% Typical
• Line Feed−forward for Enhanced Regulation Accuracy
• Low LED Current Ripple
AAx = Specific Device Code
x = E or F
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
• 250 mV ±2% Guaranteed Voltage Reference for Current Regulation
(Note: Microdot may be in either location)
• ~ 0.9 Power Factor with Valley Fill Input Stage
• Low LED Current Ripple
• Source 300 mA / Sink 500 mA Totem Pole Driver with 12 V Gate
Clamp
PIN CONNECTIONS
1
ZCD
VIN
• Low Start−up Current (13 mA typ.)
GND
VCC
• Small Space Saving Low Profile Package
CS
DRV
• Wide Temperature Range of −40 to +125°C
• Pb−free, Halide−free MSL1 Product
(Top View)
• Robust Protection Features
♦ Over Voltage / LED Open Circuit Protection
♦ Secondary Diode Short Protection
♦ Output Short Circuit Protection
♦ Shorted Current Sense Pin Fault Detection
♦ Latched and Auto−recoverable Versions
♦ Brown−out
♦ V_CC Under Voltage Lockout
♦ Thermal Shutdown
Typical Applications
• Integral LED Bulbs
• LED Power Driver Supplies
• LED Light Engines
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 21 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
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January, 2013 − Rev. P0
Publication Order Number:
NCL30080/D