FAN9672 Two-Channel Interleaved CCM PFC Controller Description The FAN9672 is an interleaved two channel Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller www.onsemi.com IC intended for PFC preregulators. Incorporating circuits for leading edge, average current, and boosttype power factor correction the FAN9672 enables the design of a power supply that fully complies with the IEC100032 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 channelmanagement function allows slave channels to be loaded and unloaded smoothly in lower powerlevel conditions according to setting voltage on the CM pin, improving the PFC LQFP32 converters load transient response. FT SUFFIX The FAN9672 also incorporates a variety of protection functions, CASE 561AB including: peak current limiting, input voltage brownout protection, and TriFault Detect function. MARKING DIAGRAM Features Continuous Conduction Mode Control 24 23 22 21 20 19 18 17 TwoChannel PFC Control (Maximum) NC VIR Average CurrentMode Control OPFC2 NC PFC Slave Channel Management Function OPFC1 CM2 Programmable Operation Frequency Range: 18 kHz 40 kHz ON ZXYTT VDD CM1 or 55 kHz 75 kHz F A N 9 6 7 2 FBPFC NC Programmable PFC Output Voltage TM Dual Current Limit Functions VEA IEA2 TriFault Detect Protects Against Feedback Loop Failure SS IEA1 Sag Protection IAC RDY Programmable SoftStart 1 2 3 4 5 6 7 8 UnderVoltage Lockout (UVLO) Differential Current Sensing Z = Assembly Plant Code Available in 32Pin LQFP Package X = Year Code Y = Work Code Typical Applications TT = Die Run Code High Power ACDC Power Supply T = Package Type (Q:LQFP) M = Manufacture Flow Code DC Motor Power Supply White Goods e.g. Air Conditioner Power Supply Server and Telecom Power Supply ORDERING INFORMATION UPS See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. Industrial Welding and Power Supply Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: June, 2019 Rev. 4 FAN9672/D 32 31 30 29 28 27 26 25 BIBO GND PVO CS1+ ILIMIT CS1 GC CS2+ RI CS2 RLPK NC ILIMIT2 NC LPK LS 9 10 11 12 13 14 15 16FAN9672 ORDERING INFORMATION Operating Temperature Range Part Number Package Packing Method FAN9672Q 40C to 105C 32Lead, Low Quad Flat Package (LQFP), JEDEC Tray MS026, Variation BBA, 7 mm Square TYPICAL APPLICATION * D BP RB 1 V L D V IN PFC1 PFC1 PFC L D PFC2 PFC2 C B+ R C FB1 OUT AC Line EMI In Filter R FB2 S S PFC1 PFC2 RB1 RA1 R R SEN1 SEN2 C FB3 R FB3 R R B2 A2 R F C F1 C F2 R IAC OPFC1 CS1 CS1+ OPFC2 CS2+ CS2 FBPFC B3 BIBO C VC2 VEA C R C SS VC1 VC1 C C B1 B2 R SS B4 C ILIMIT2 ILIMIT2 C IC12 IEA1 RILIMIT2 R C IC1 IC11 FAN9672 RDY MCU C VI22 PVO MCU signal (DC) IEA2 R C IC2 IC21 LS RLS C GC VDD GC R GC C VDD VIR LPK CM1 CM2 GND RLPK RI ILIMIT Standby Power R R RI ILIMIT MCU R RLPK C R R VIR VIR LPK Channel Enable C C C ILIMIT LPK RLPK * About D please reference System Design Precautions BP Figure 1. Typical Application Diagram for TwoChannel PFC Converter www.onsemi.com 2 Driver Circuit Driver Circuit