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ON Semiconductor - Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller

Numéro de référence NCL30188
Description Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller
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NCL30188 fiche technique
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 non−isolated
“smart−dimmable” constant−current LED drivers. Designed to
8
support flyback, buck−boost, and SEPIC topologies, its proprietary
current−control algorithm provides near−unity power factor and
1
SOIC−8 NB
tightly regulates a constant LED current from the primary side, thus
CASE 751
eliminating the need for a secondary−side feedback circuitry or an
optocoupler.
Housed in the SOIC8, the NCL30188 is specifically intended for
very compact space−efficient 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.
Pin−to−pin 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 current−control algorithm for a 75% reduction in the LED
current quantization ripple.
L = Wafer Lot
Y = Year
W = Work Week
Features
G = Pb-Free Package
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
Line Feedforward for Enhanced Regulation Accuracy
Low Start−up 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
Cycle−by−cycle 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
Brown−out Protection
Pb−Free, Halide−Free Product
Latching−off (NCL30188A) or 4−s Auto−recovery
(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
March, 2016 − Rev. 0
1
Publication Order Number:
NCL30188/D

PagesPages 26
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