FAN6982MY

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Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. FAN6982 CCM Power Factor Correction Controller Features Description ƒ ƒ ƒ ƒ Continuous Conduction Mode The FAN6982 is a 14-pin, Continuous Conduction Mode (CCM) PFC controller IC intended for Power Factor Correction (PFC) pre-regulators. The FAN6982 includes circuits for the implementation of leading edge, average current, “boost”-type power factor correction, and results in a power supply that fully complies with the IEC1000-3-2 specification. ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Power-On Sequence Control Innovative Switching-Charge Multiplier-Divider Average-Current-Mode for Input-Current Shaping TriFault Detect™ Prevent Abnormal Operation for Feedback Loop Soft-Start Capability Brownout Protection Cycle-by-Cycle Peak Current Limiting. Improves Light-Load Efficiency Fulfills Class-D Requirements of IEC 1000-3-2 Wide Range Universal AC Input Voltage A TriFault Detect™ function helps reduce external components and provides full protection for feedback loops such as open, short, and over voltage. An overvoltage comparator shuts down the PFC stage in the event of a sudden load decrease. The RDY signal can be used for power-on sequence control. The EN function can choose to enable or disable the range function. FAN6982 also includes PFC soft-start, peak current limiting, and input voltage brownout protection. Maximum Duty Cycle 97% VDD Under-Voltage Lockout (UVLO) Applications ƒ ƒ ƒ ƒ Desktop PC Power Supply Internet Server Power Supply LCD TV/Monitor Power Supply DC Motor Power Supply Ordering Information Part Number FAN6982MY Operating Temperature Range Package Packing Method -40°C to +105°C 14-Pin Small Outline Package (SOP) Tape & Reel © 2009 Fairchild Semiconductor Corporation FAN6982 • Rev. 1.0.3 www.fairchildsemi.com FAN6982 — CCM Power Factor Correction Controller July 2010 FAN6982 — CCM Power Factor Correction Controller Application Diagram Figure 1. Typical Application © 2009 Fairchild Semiconductor Corporation FAN6982 • Rev. 1.0.3 www.fairchildsemi.com 2 14 1 Low-Power Detect Comparator FBPFC 2.5V 0.3V 13 6 EN RM GmI 2 3 0.5V PFC UVP 2.75V/2.5V PFC OVP VDD 28V/27V GmV S VDD OVP R CLR 1.05V/1.9V VRMS Q 10 VIN UVP IM O Gain Modulator 12 Q PFC ILIMIT S SET R CLR Q k 2 x IAC SET VREF OPFC ISENSE Range VDD 7.5V REFERENCE -1.15V VRMS 4 11 IEA VEA PGND VEA 9 Q RM 2.8V ISENSE VDD UVLO RDY 5 7 RT/CT FBPFC 2.4V/1.15V OSCILLATOR SGND 8 FAN6982 — CCM Power Factor Correction Controller Block Diagram Figure 2. Functional Block Diagram Marking Information F – Fairchild Logo Z – Plant Code X – 1-Digit Year Code Y – 1-Digit Week Code TT – 2-Digit Die-Run Code T – Package Type (M: SOP) P – Y: Green Package M – Manufacture Flow Code Figure 3. Top Mark © 2009 Fairchild Semiconductor Corporation FAN6982 • Rev. 1.0.3 www.fairchildsemi.com 3 FAN6982 — CCM Power Factor Correction Controller Pin Configuration Figure 4. Pin Configuration Pin Definitions Pin # Name Description 1 IEA Output of Current Amplifier. This is the output of the PFC current amplifier. The signal from this pin is compared with sawtooth and determines the pulsewidth for PFC gate drive. 2 IAC Input AC Current. For normal operation, this input is used to provide current reference for the multiplier. The suggested maximum IAC is 100µA. 3 ISENSE 4 VRMS 5 RDY 6 EN 7 RT/CT Oscillator RC Timing Connection. Oscillator timing node; timing set by RT and CT. 8 SGND Signal Ground. 9 PGND Power Ground. 10 OPFC Gate Drive. The totem-pole output drive for PFC MOSFET. This pin is internally clamped under 15V to protect the MOSFET. 11 VDD Power Supply. The threshold voltages for startup and turn-off are 11V and 9.3V, respectively. The operating current is lower than 10mA. 12 VREF Reference Voltage. Buffered output for the internal 7.5V reference. 13 FBPFC 14 VEA Current Sense. The non-inverting input of the PFC current amplifier and the output of multiplier and PFC ILIMIT comparator. Line-Voltage Detection. The pin is used for PFC multiplier. Ready Signal. This pin controls the power-on sequence. Once the FAN6982 is turned on and the FBPFC voltage exceeds in 2.4V, the RDY pin pulls LOW impedance. If the FBPFC voltage is lower than 1.15V, the RDY pin pulls HIGH impedance. Enable Range Function. The range function is enabled when EN is connected to VREF. The range function is disabled when EN is connected to GND. Voltage Feedback Input. The feedback input for PFC voltage loop. The inverting input of PFC error amplifier. This pin is connected to the PFC output through a divider network. Output of Voltage Amplifier. The error-amplifier output for PFC voltage feedback loop. A compensation network is connected between this pin and ground. © 2009 Fairchild Semiconductor Corporation FAN6982 • Rev. 1.0.3 www.fairchildsemi.com 4 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VDD Parameter Min. DC Supply Voltage Max. Unit 30 V VH OPFC, RDY, EN, VREF -0.3 30.0 V VL IAC, VRMS, RT/CT, FBPFC, VEA -0.3 7.0 V 0 VVREF+0.3 V -5.0 VIEA IEA VN ISENSE 0.7 V IAC Input AC Current 1 mA IREF VREF Output Current 5 mA 0.5 A IPFC-OUT PD Peak PFC OUT Current, Source or Sink 800 mW RΘ j-a Thermal Resistance (Junction-to-Air) 104.10 °C/W RΘ j-c Thermal Resistance (Junction-to-Case) 40.61 °C/W TJ TSTG TL ESD Power Dissipation, TA < 50°C Operating Junction Temperature -40 +125 °C Storage Temperature Range -55 +150 °C +260 °C Lead Temperature (Soldering) Electrostatic Discharge Capability Human Body Model, JESD22-A114 4.5 Charged Device Model, JESD22-C101 1.0 FAN6982 — CCM Power Factor Correction Controller Absolute Maximum Ratings kV Notes: 1. All voltage values, except differential voltage, are given with respect to the GND pin. 2. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol TA Parameter Operating Ambient Temperature © 2009 Fairchild Semiconductor Corporation FAN6982 • Rev. 1.0.3 Min. Max. Unit -40 +105 °C www.fairchildsemi.com 5 Unless otherwise noted; VDD=15V, TA= 25°C, TA=TJ, RT=27kΩ, and CT=1000pF. Symbol Parameter Conditions Min. Typ. Max. Units 22 V 30 80 µA 2.0 2.3 3.0 mA 10 11 12 V 1.90 V 29 V VDD Section VDD-OP Continuously Operating Voltage IDD ST Startup Current VDD=VTH-ON-0.1V; OPFC Open VDD=13V; OPFC Open IDD-OP Operating Current VTH-ON Turn-on Threshold Voltage △VTH Hysteresis VDD-OVP △VDD-OVP 1.35 VDD OVP 27 VDD OVP Hysteresis 28 1 V Oscillator fOSC PFC Frequency RT=27kΩ, CT=1000pF (3) fDV Voltage Stability Temperature Stability fDT (3) 67 kHz 11V ≦ VDD ≦ 22V 2 % -40°C ~ +105°C 2 % 70 kHz fTV Total Variation Line, Temperature fRV Ramp Voltage Valley-to-Peak IOSC-DIS Discharge Current VRAMP=0V, VRT/CT=2.5V fRANGE Frequency Range tPFC-DEAD 60 64 58 2.8 V 6.5 15.0 mA 50 75 kHz PFC Dead Time RT=27kΩ, CT=1000pF 400 600 800 ns VVREF Reference Voltage IREF=0mA, CREF=0.1µF 7.4 7.5 7.6 V △VVREF1 Load Regulation of Reference Voltage CREF=0.1µF, IREF=0mA to 3.5mA VVDD=14V, Rise/Fall Time > 20µs 30 50 mV △VVREF2 Line Regulation of Reference CREF=0.1µF, VVDD=11V to 22V Voltage 25 mV 0.5 % FAN6982 — CCM Power Factor Correction Controller Electrical Characteristics VREF △VVREF-DT (3) Temperature Stability Total Variation (3) -40°C ~ +105°C 0.4 Line, Load, Temperature 7.35 7.65 V Long-Term Stability TJ=125°C, 0 ~ 1000HRs 5 25 mV Maximum Current VVREF > 7.35V 5 VRMS-UVL VRMS Threshold Low When VRMS=1.05V at 75 VRMS 1.00 1.05 1.10 V VRMS-UVH VRMS Threshold High When VRMS=1.9V at 85 • 1.414 1.85 1.90 1.95 V 750 850 950 mV 340 410 480 ms 2.3 2.4 2.5 V 1.15 1.25 1.35 V VFBPFC