NCL30486A1DR2G ON Semiconductor

Dimmable Power Factor Corrected LED Driver NCL30486 The NCL30486 is a power factor corrected flyback controller targeting isolated constant current LED drivers. The controller operates in a quasiresonant mode to provide high efficiency. Thanks www.onsemi.com 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, its biasing and for an optocoupler. 9 The device is highly integrated with a minimum number of external 1 components. A robust suite of safety protection is built in to simplify SOIC9 the design. This device is specifically intended for very compact space CASE 751BP efficient designs and supports analog and digital dimming with two dedicated dimming inputs control ideal for Smart LED Lighting MARKING applications. DIAGRAM Features 9 High Voltage Startup L30486XX Quasiresonant Peak Currentmode Control Operation ALYWX Primary Side Feedback CC / CV Accurate Control V up to 320 V rms in 1 Tight LED Constant Current Regulation of 2% Typical L30486 = Specific Device Code Digital Power Factor Correction XX = Version Analog and Digital Dimming A = Assembly Location Cycle by Cycle Peak Current Limit L = Wafer Lot YW = Assembly Start Week Wide Operating V Range CC = PbFree Package 40 to + 125C Robust Protection Features PIN CONNECTIONS BrownOut OVP on V CC ADIM 1 10 HV Constant Voltage / LED Open Circuit Protection Winding Short Circuit Protection COMP 2 Secondary Diode Short Protection Output Short Circuit Protection ZCD 3 8 PDIM Thermal Shutdown Line over Voltage Protection VCC 4 7 This is a PbFree Device CS Typical Applications GND 5 DRV 6 Integral LED Bulbs LED Power Driver Supplies LED Light Engines ORDERING INFORMATION See detailed ordering and shipping information on page 27 of this data sheet. Semiconductor Components Industries, LLC, 2020 1 Publication Order Number: May, 2021 Rev. 2 NCL30486/DNCL30486 Aux . V ADIM NCL30486 1 10 2 9 3 8 4 7 5 6 PWM signal Figure 1. Typical Application Schematic for NCL30486 PIN FUNCTION DESCRIPTION NCL30486 Pin N Pin Name Function Pin Description 1 ADIM Analog dimming This pin is used for analog control of the output current. Applying a voltage varying between V and V will dim the output current from 0% to 100%. DIM(EN) DIM100 2 COMP OTA output for CV loop This pin receives a compensation network to stabilize the constant voltage loop 3 ZCD Zero crossing Detection This pin connects to the auxiliary winding and is used to detect the core reset event. V sensing This pin also senses the auxiliary winding voltage for accurate output voltage control aux 4 CS Current sense This pin monitors the primary peak current. 5 GND The controller ground 6 DRV Driver output The drivers output to an external MOSFET 7 VCC Supplies the controller This pin is connected to an external auxiliary voltage. 8 PDIM PWM dimming This pin is used for PWM dimming control. An optocoupler can be connected directly to the pin if the PWM control signal is from the secondary side 9 NC creepage 10 HV High Voltage sensing This pin connects after the diode bridge to provide the startup current and internal high voltage sensing function. www.onsemi.com 2