NCL30088 Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Foldback
The NCL30088 is a power factor corrected flyback controller targeting isolated and non-isolated constant current LED drivers. The controller operates in a quasi-resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly 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.
Features http://onsemi.com
8 1 SOIC-8 NB CASE 751 MARKING DIAGRAM
8 L30088x ALYW G 1 L30088x = Specific Device Code x = A, B, C, D A = Assembly Location L = Wafer Lot Y = Year W = Work Week 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.) Wide Vcc Range 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp Robust Protection Features OVP on VCC Programmable Over Voltage / LED Open Circuit Protection Cycle-by-cycle Peak Current Limit 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 Four Versions: NCL30088A, B, C and D (See Table 1) PIN CONNECTIONS
1 ZCD VS COMP SD (Top View) VCC DRV GND CS ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 25 of this data sheet. Typical Applications Integral LED Bulbs and Tubes LED Light Engines LED Drivers/Power Supplies Electronic Control Gear for LED Lighting © Semiconductor Components Industries, LLC, 2015 1 February, 2015 - Rev. 3 Publication Order Number: NCL30088/D NCL30088 .
Aux . . NCL30088
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Figure 1. Typical Application Schematic in a Flyback Converter Aux . . NCL30088
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Figure 2. Typical Application Schematic in a Buck-Boost Converter http://onsemi.com
2 NCL30088
Table 1. FOUR NCL30088 VERSIONS
Part Number Protection Mode Current Regulation Reference Voltage (VREF) Recommended for (*): Isolated converters. Non-iso …