NCP1605BDR2G

The NCP1605 is a controller that exhibits near unity power factor while operating in fixed frequency, Discontinuous Conduction Mode or in Critical Conduction Mode. Housed in a SOIC-16 package, the circuit incorporates all the features necessary for building robust and compact PFC stages, with a minimum of external components. In addition, it integrates the skip cycle capability to lower the standby losses to a minimum.

• Near-Unity Power Factor
• Fixed Frequency, Discontinuous Conduction Mode Operation
• Critical Conduction Mode Achievable in Most Stressful Conditions
• Lossless High Voltage Current Source for Startup
• Soft Skip Cycle for Low Power Standby Mode
• Switching Frequency up to 250 kHz
• Synchronization Capability
• Fast Line / Load Transient Compensation
• Valley Turn On
• High Drive Capability: -500 mA / +800 mA
• Signal to Indicate that the PFC is Ready for Operation (“pfcOK” Pin)
• VCC range: from 10 V to 20 V
• Follower Boost Operation
• Two VCC Turn-On Threshold Options: 15 V for NCP1605 & NCP1605B; 10.5 V for NCP1605A
• Pb-Free Devices are available