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Numéro de référence | NCL30083BDMR2G | ||
Description | Dimmable Quasi-Resonant Primary Side Current-Mode Controller | ||
Fabricant | ON Semiconductor | ||
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1 Page
NCL30083
Dimmable Quasi-Resonant
Primary Side Current-Mode
Controller for LED Lighting
with Thermal Fold-back
The NCL30083 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 robust suite of safety protection is built in to simplify
Micro8
DM SUFFIX
CASE 846A
the design. This device is specifically intended for very compact space
efficient designs. It supports step dimming by monitoring the AC line
MARKING DIAGRAM
and detecting when the line has been toggled on−off−on by the user to
8
reduce the light intensity in 5 steps down to 5% dimming.
Features
• Quasi−resonant Peak Current−mode Control Operation
AAx
AYWG
G
1
• 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
AAx = Specific Device Code
x = E or F
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
• 250 mV ±2% Guaranteed Voltage Reference for Current Regulation
• ~ 0.9 Power Factor with Valley Fill Input Stage
PIN CONNECTIONS
• Low Start−up Current (13 mA typ.)
• 5 State Quasi−log Dimmable
• Thermal Fold−back
• Programmable soft−start
SD
ZCD
CS
GND
1
SS
VIN
VCC
DRV
• Wide Temperature Range of −40 to +125°C
(Top View)
• 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
Typical Applications
• Integral LED Bulbs
• LED Power Driver Supplies
• LED Light Engines
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 34 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
April, 2013 − Rev. 0
1
Publication Order Number:
NCL30083/D
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Pages | Pages 30 | ||
Télécharger | [ NCL30083BDMR2G ] |
No | Description détaillée | Fabricant |
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