NCL30001G

**The NCL30001 is a highly integrated controller for implementing power

factor correction (PFC) and isolated step down ac−dc power conversion in a single stage, resulting in a lower cost and reduced part count solution. This controller is ideal for LED Driver power supplies with power requirements between 40 W and 150 W. The single stage is based on the flyback converter and it is designed to operate in continuous conduction (CCM).**

The NCL30001 can be configured as as constant current driver or a fixed output driver for two stage LED lighting applications. In addition, the controller features a proprietary Soft−Skip™ to reduce acoustic noise at light loads. Other features found in the NCL30001 include a high voltage startup circuit, voltage feedforward, brown out detector, internal overload timer, latch input and a high accuracy multiplier. The multi−function latch off pin can also be used to implement an overtemperature shutdown circuit.

Features

• Voltage Feedforward Improves Loop Response
• Frequency Jittering Reduces EMI Signature
• Proprietary Soft−Skip at Light Loads Reduces Acoustic Noise
• Brown Out Detector
• Internal 160 ms Fault Timer
• Independent Latch−Off Input Facilitates Implementation of
Overvoltage and Overtemperature Fault Detectors
• Average Current Mode Control (ACMC), Fixed Frequency Operation
• High Accuracy Multiplier Reduces Input Line Harmonics
• Adjustable Operating Frequency from 20 kHz to 250 kHz
• These Devices are Pb−Free and are RoHS Compliant

Typical Applications

• LED Street Lights
• Low Bay LED Lighting
• High Power LED Drivers
• Architectural LED Lighting