DN05050/D, 12V/18W Hi-Power Factor Constant Voltage LED Driver Design Note
Reference Design using part NCL30000DR2G by onsemi
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For End Products
- LED Lighting
Description
- DN05050/D, 12V/18W Hi-Power Factor Constant Voltage LED Driver. Normally high power factor LED drivers provide a regulated constant current output to drive a string of LEDs. In certain circumstances, the LED load may have a built in constant current LED driver so all that is need to drive the LED load is a power factor corrected constant voltage driver commonly referred to as an LED Power Supply. It is common for these supplies to generate 12V, 24V or even a higher voltage. The focus of this design note is the development of an isolated offline, high power factor corrected single stage constant voltage supply which supports AC mains from 200 - 305 Vac. This addresses AC line voltages found in many parts of the world as well as the 277 Vac commercial input required for the United States
Key Features
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Input Voltage200 to 305 (AC) V
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Output Voltage12 V
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Output Current2 A
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Output Power18 W
Featured Parts (4)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
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LM2904DR2G | onsemi | Operational Amplifiers - Op Amps | Op Amp Dual GP ±16V/32V 8-Pin SOIC N T/R | Buy | |
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PS2561L-1-F4-A | Renesas Electronics | Transistor and Photovoltaic Output Photocouplers | DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP SMD T/R | Buy | |
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TL431ACDG | onsemi | Voltage References | V-Ref Adjustable 2.495V to 36V 100mA 8-Pin SOIC N Tube | Buy | |
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NCL30000DR2G | onsemi | LED Drivers | LED Driver 72 Segment 20000uA Supply Current 8-Pin SOIC N T/R | Buy | |