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NCP1612A Datasheet (PDF) - ON Semiconductor

NCP1612A Datasheet PDF - ON Semiconductor
Part # NCP1612A
Download  NCP1612A Download

File Size   2035.96 Kbytes
Page   33 Pages
Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor
Description Enhanced, High?륟fficiency Power Factor Controller

NCP1612A Datasheet (PDF)

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NCP1612A Datasheet PDF - ON Semiconductor

Part # NCP1612A
Download  NCP1612A Click to download

File Size   2035.96 Kbytes
Page   33 Pages
Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor
Description Enhanced, High?륟fficiency Power Factor Controller

NCP1612A Datasheet (HTML) - ON Semiconductor

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NCP1612A Product details

The NCP1612 is designed to drive PFC boost stages based on an innovative Current Controlled Frequency Fold-back (CCFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1612 linearly decays the frequency down to about 20 kHz when the current is null. CCFF maximizes the efficiency at both nominal and light load. In particular, the stand-by losses are reduced to a minimum.

General Features
• Near-unity Power Factor
• Critical Conduction Mode (CrM)
• Current Controlled Frequency Fold-back (CCFF): Low Frequency Operation is Forced at Low Current Levels
• On-time Modulation to Maintain a Proper Current Shaping in CCFF Mode
• Skip Mode Near the Line Zero Crossing
• Fast Line/Load Transient Compensation (Dynamic Response Enhancer)
• Valley Turn On
• High Drive Capability: −500 mA/+800 mA
• VCC Range: from 9.5 V to 35 V
• Low Start-up Consumption
• Six Versions: NCP1612A, B, A1, A2, A3 and B2 (see Table 1)
• Line Range Detection
• pfcOK Signal
• This is a Pb-Free Device

Safety Features
• Separate Pin for Fast Over-voltage Protection (FOVP) for Redundancy
• Soft Over-voltage Protection
• Brown-out Detection
• Soft-start for Smooth Start-up Operation (A, A1, A2 and A3 Versions)
• Over Current Limitation
• Disable Protection if the Feedback is Not Connected
• Thermal Shutdown
• Latched Off Capability
• Low Duty-cycle Operation if the Bypass Diode is shorted
• Open Ground Pin Fault Monitoring
• Saturated Inductor Protection
• Detailed Safety Testing Analysis (Refer to Application Note AND9079/D)

Typical Applications
• PC Power Supplies
• All Off Line Appliances Requiring Power Factor Correction




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About ON Semiconductor


ON Semiconductor is a publicly traded company that designs, develops, and manufactures a wide range of semiconductor products for various applications, including automotive, computing, consumer, industrial, and communications markets.
The company was founded in 1999 and is headquartered in Phoenix, Arizona.
ON Semiconductor offers a broad portfolio of power management, analog, and discrete semiconductors, including power MOSFETs, diodes, rectifiers, and voltage regulators, among others.
The company's products are designed to be energy efficient, reliable, and cost-effective, and are used in a variety of applications, including portable electronics, industrial automation systems, renewable energy systems, and automotive electronics.
ON Semiconductor is dedicated to innovation and customer satisfaction, and is committed to providing its customers with the best semiconductor solutions to meet their needs.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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