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NCL30188 Datasheet, PDF (1/26 Pages) ON Semiconductor – Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Foldback | |||
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NCL30188
Power Factor Corrected
Quasi-Resonant Primary
Side Current-Mode
Controller for LED Lighting
with Thermal Foldback
www.onsemi.com
The NCL30188 is a controller targeting isolated and nonâisolated
âsmartâdimmableâ constantâcurrent LED drivers. Designed to
8
support flyback, buckâboost, and SEPIC topologies, its proprietary
currentâcontrol algorithm provides nearâunity power factor and
1
SOICâ8 NB
tightly regulates a constant LED current from the primary side, thus
CASE 751
eliminating the need for a secondaryâside feedback circuitry or an
optocoupler.
Housed in the SOIC8, the NCL30188 is specifically intended for
very compact spaceâefficient designs. The device is highly integrated
with a minimum number of external components. A robust suite of
MARKING DIAGRAM
8
L30188x
ALYW
safety protections is built in to simplify the design. To ensure reliable
G
operations at elevated temperatures, a user configurable current
1
foldback circuit is also provided.
Pinâtoâpin compatible to the NCL30088, the NCL30188 provides
the same benefits with in addition, an increased resolution of the
L30188x = Specific Device Code
x = A, B
A
= Assembly Location
digital currentâcontrol algorithm for a 75% reduction in the LED
current quantization ripple.
L
= Wafer Lot
Y
= Year
W
= Work Week
Features
G
= Pb-Free Package
⢠Quasiâresonant Peak Currentâmode Control Operation
⢠Constant Current Control with Primary Side Feedback
⢠Tight LED Constant Current Regulation of ±2% Typical
⢠Power Factor Correction
⢠Line Feedforward for Enhanced Regulation Accuracy
⢠Low Startâup Current (13 mA typ.)
PIN CONNECTIONS
1
ZCD
VCC
VS
DRV
COMP
GND
⢠Wide Vcc Range
⢠300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp
SD
CS
(Top View)
⢠Robust Protection Features
⦠OVP on VCC
⦠Programmable Over Voltage / LED Open Circuit Protection
⦠Cycleâbyâcycle Peak Current Limit
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
⦠Winding Short Circuit Protection
⦠Secondary Diode Short Protection
⦠Output Short Circuit Protection
⦠Shorted Current Sense Protection
⦠User Programmable NTC Based Thermal Foldback
⦠Thermal Shutdown
⦠Vcc Undervoltage Lockout
⦠Brownâout Protection
⢠PbâFree, HalideâFree Product
⢠Latchingâoff (NCL30188A) or 4âs Autoârecovery
(NCL30188B) Protection Modes (See Table 4)
Typical Applications
⢠Integral LED Bulbs and Tubes
⢠LED Light Engines
⢠LED Drivers/Power Supplies
⢠Electronic Control Gear for LED Lighting
© Semiconductor Components Industries, LLC, 2016
1
March, 2016 â Rev. 0
Publication Order Number:
NCL30188/D
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