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FAN9672

ON Semiconductor
Part Number FAN9672
Manufacturer ON Semiconductor
Description Two-Channel Interleaved CCM PFC Controller
Published Apr 1, 2020
Detailed Description Two-Channel Interleaved CCM PFC Controller FAN9672 Description The FAN9672 is an interleaved two−channel Continuous Cond...
Datasheet PDF File FAN9672 PDF File

FAN9672
FAN9672

Overview
Two-Channel Interleaved CCM PFC Controller FAN9672 Description The FAN9672 is an interleaved two−channel Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller IC intended for PFC pre−regulators.
Incorporating circuits for leading edge, average current, and “boost”−type power factor correction; the FAN9672 enables the design of a power supply that fully complies with the IEC1000−3−2 specification.
Interleaved operation provides substantial reduction in the input and output ripple currents and the conducted EMI filtering becomes simpler and cost effective.
An innovative channel−management function allows slave channels to be loaded and unloaded smoothly in lower power−level conditions according to setting voltage on the CM pin, improving the PFC converter’s load transient response.
The FAN9672 also incorporates a variety of protection functions, including: peak current limiting, input voltage brownout protection, and TriFault Detect function.
Features • Continuous Conduction Mode Control • Two−Channel PFC Control (Maximum) • Average Current−Mode Control • PFC Slave Channel Management Function • Programmable Operation Frequency Range: 18 kHz ∼ 40 kHz or 55 kHz ∼ 75 kHz • Programmable PFC Output Voltage • Dual Current Limit Functions • TriFault Detect Protects Against Feedback Loop Failure • Sag Protection • Programmable Soft−Start • Under−Voltage Lockout (UVLO) • Differential Current Sensing • Available in 32−Pin LQFP Package Typical Applications • High Power AC−DC Power Supply • DC Motor Power Supply • White Goods; e.
g.
Air Conditioner Power Supply • Server and Telecom Power Supply • UPS • Industrial Welding and Power Supply DATA SHEET www.
onsemi.
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