NCL30001 High-Efficiency Single Stage Power Factor Correction and Step-Down Offline LED Driver www.onsemi.com The NCL30001 is a highly integrated controller for implementing power factor correction (PFC) and isolated step down acdc power MARKING conversion in a single stage, resulting in a lower cost and reduced part DIAGRAM 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 NCL30001G AWLYWW continuous conduction (CCM). The NCL30001 can be configured as as constant current driver or a SOIC16 fixed output driver for two stage LED lighting applications. In D SUFFIX addition, the controller features a proprietary SoftSkip to reduce CASE 751B acoustic noise at light loads. Other features found in the NCL30001 A = Assembly Location include a high voltage startup circuit, voltage feedforward, brown out WL = Wafer Lot detector, internal overload timer, latch input and a high accuracy YY = Year multiplier. The multifunction latch off pin can also be used to WW = Work Week implement an overtemperature shutdown circuit. G = PbFree Package Features Voltage Feedforward Improves Loop Response PIN CONNECTIONS Frequency Jittering Reduces EMI Signature Proprietary SoftSkip at Light Loads Reduces Acoustic Noise CT 1 Startup 16 Brown Out Detector Ramp Comp 2 15 GND Internal 160 ms Fault Timer AC IN NC 3 14 Independent LatchOff Input Facilitates Implementation of FB 13 DRV 4 Overvoltage and Overtemperature Fault Detectors V V FF 5 12 CC Average Current Mode Control (ACMC), Fixed Frequency Operation CM I 6 11 spos High Accuracy Multiplier Reduces Input Line Harmonics AC COMP I 7 10 Adjustable Operating Frequency from 20 kHz to 250 kHz avg LatchOff TEST 8 9 These Devices are PbFree and are RoHS Compliant (Top View) Typical Applications LED Street Lights ORDERING INFORMATION Low Bay LED Lighting See detailed ordering and shipping information on page 30 of High Power LED Drivers this data sheet. Architectural LED Lighting Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: February, 2015 Rev. 1 NCL30001/DNCL30001 FB overload Overload Jitter comparator Timer FB t OVLD + Enable + S Jitter Q OVLD CT Adj. V R OVLD Clock Oscillator Startup V BrownOut Enable FF DC Max Comparator Out DC Max x 2 Sawtooth counter V FF Reset + + Dual HV startup V BO BO current source Ramp. Comp. Ramp Comp Adj. V HV current CC(off) Reset Reset V CC GND Management Ramp V Start AC In skip OK CC V Comp DD comparator + + V DD V V SSKIP(sync) DD Clock Softskip Ramp R FB skip FB DC Max Comparator Delay t SSKIP + Start Terminate + V SSKIP Transient Load Detect Comparator + AC IN S + + Q DRV Ramp Comp Output R V SSKIP(TLD) Driver VtoI PWM Skip FB 21.33k Comparator FB VtoI Reference + Generator VtoI gm + + inverter V CC AC error PWM Amplifier comparator V V FF FF 21.33k + BO 4V OVLD CM Latch V OK CC Blanking I spos t gm LEB AC COMP Current sense amplifier V DD OVP Comparator I avg + + I latch(clamp) V latch(high) blanking t (delay) Latch LatchOff OTP Comparator S Q Latch + I latch(shdn) R TEST + V latch(low) V latch(clamp) Reset Figure 1. Detailed Block Diagram www.onsemi.com 2 +