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NCL30081B Datasheet دیتاشیت PDF دانلود

دیتاشیت - ON Semiconductor - Dimmable Quasi-Resonant Primary Side Current-Mode Controller

شماره قطعه NCL30081B
شرح مفصل Dimmable Quasi-Resonant Primary Side Current-Mode Controller
تولید کننده ON Semiconductor 
آرم ON Semiconductor 


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NCL30081B شرح
NCL30081
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Dimmable Quasi-Resonant
Primary Side Current-Mode
Controller for LED Lighting
The NCL30081 is a PWM current mode controller targeting isolated
flyback and nonisolated constant current topologies. The controller
operates in a quasiresonant 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 is specifically intended for very compact space
efficient designs. It supports step dimming by monitoring the AC line
and detecting when the line has been toggled onoffon by the user to
reduce the light intensity in 5 steps down to 5% dimming.
Features
http://onsemi.com
1
TSOP6
SN SUFFIX
CASE 318G
MARKING DIAGRAM
AAxAYWG
G
Quasiresonant Peak Currentmode Control Operation
1
Primary Side Sensing (no optocoupler needed)
Wide VCC Range
Precise LED Constant Current Regulation ±1% Typical
Line Feedforward for Enhanced Regulation Accuracy
Low LED Current Ripple
250 mV ±2% Guaranteed Voltage Reference for Current Regulation
AAx = Specific Device Code
x = G or H
A = Assembly Location
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
~ 0.9 Power Factor with Valley Fill Input Stage
Low Startup Current (10 mA typ.)
Small Space Saving Low Profile Package
5 State Quasilog Dimmable
Wide Temperature Range of 40 to +125°C
PIN CONNECTIONS
1
ZCD
VIN
GND
VCC
Pbfree, Halidefree MSL1 Product
CS DRV
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 Autorecoverable Versions
Brownout
VCC Under Voltage Lockout
Thermal Shutdown
(Top View)
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.
© Semiconductor Components Industries, LLC, 2013
January, 2013 Rev. P0
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 23 of this data sheet.
1 Publication Order Number:
NCL30081/D

قانون اساسیصفحه 23
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