FAN7930M Fairchild Semiconductor, FAN7930M Datasheet
FAN7930M
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FAN7930M Summary of contents
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... Operating Part Number Temperature Range FAN7930M -40 to +125°C FAN7930MX © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Description The FAN7930 is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltage-mode ...
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... Application Diagram Internal Block Diagram © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Figure 1. Typical Boost PFC Application Figure 2. Functional Block Diagram 2 www.fairchildsemi.com ...
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... For proper operation, the stray inductance in the gate driving path must be minimized This is the IC supply pin. IC current and MOSFET drive current are supplied using this pin. CC © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Figure 3. Pin Configuration (Top View) 3 www.fairchildsemi.com ...
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... In case of DC input, acceptable input range is -0.3V~6V: within 100ns -10V~6V is acceptable, but electrical specifications are not guaranteed during such a short time. Thermal Impedance Symbol Θ Thermal Resistance, Junction-to-Ambient JA Note: 3. Regarding the test environment and PCB type, please refer to JESD51-2 and JESD51-10. © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Parameter > <-0. (1) ...
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... Maximum On-Time Programming 1 T ON,MAX1 t Maximum On-Time Programming 2 ON,MAX2 Current-Sense Section Current Sense Input Threshold V CS Voltage Limit I Input Bias Current CS,BS t Current Sense Delay to Output CS,D © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Conditions V Increasing CC V Decreasing CC I =20mA -0.2V CC ...
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... Enable Threshold Voltage EN HY Enable Hysteresis EN T Thermal Shutdown Temperature SD T Hysteresis Temperature of TSD HYS Note: 4. These parameters, although guaranteed by design, are not production tested. © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Conditions (4) I =3mA DET I = -3mA DET V =1V~5V ZCD (4) T =25° ...
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... Detection Soft-Start and None Overshoot-less THD Optimizer External TSD None © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 FAN7930 FAN7930 Advantages No External Circuit for PFC Output UVLO Reduction of Power Loss and BOM Cost Caused Integrated by PFC Out UVLO Circuit Open-Drain Pin has Versatile Uses ...
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... Typical Performance Characteristics Figure 4. Voltage Feedback Input Threshold vs. T REF1 Figure 6. Stop Threshold Voltage (V Figure 8. Operating Supply Current (I © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Figure 5. Start Threshold Voltage ( vs. T Figure 7. Startup Supply Current (I STOP A ) vs. T Figure 9. Output Upper Clamp Voltage (V ...
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... Typical Performance Characteristics Figure 10. Zero Duty Cycle Output Voltage (V vs. T Figure 12. Maximum On-Time Program 2 (t vs. T Figure 14. Input High Clamp Voltage (V © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 ) Figure 11. Maximum On-Time Program 1 (t EAZ A ) Figure 13. Current Sense Input Threshold Voltage ...
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... Typical Performance Characteristics Figure 16. Output Voltage High (V Figure 18. Restart Timer Delay (t Figure 20. Output Saturation Voltage (V vs. T © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 ) vs. T Figure 17. Output Voltage Low ( vs. T Figure 19. Output Ready Voltage (V RST A ) Figure 21. OVP Threshold Voltage (V RDY,SAT ...
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... IC is disabled. Figure 24 is the timing chart of the internal circuit near the INV pin when rated PFC output voltage is assumed at 390V and V DC 15V. © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0 PFC CC exceeds V , 20mA CC Z Figure 23 ...
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... To check the boost inductor current zero instance, auxiliary winding voltage is used. When boost inductor current becomes zero, there is a resonance between boost inductor and all capacitors at MOSFET drain pin, © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 including C of the MOSFET; an external capacitor at ...
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... When COMP load is heavy, output voltage decreases, scaled output decreases, COMP voltage increases to compensate low © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 output, turn-on time lengthens to give more inductor turn-on time, and increased inductor current raises the output voltage ...
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... This operation is better when soft-start time is very long. However, too long startup time enlarges the output © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 voltage building time at light load. FAN7930 has “overshoot-less” control at startup. During startup, the ...
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... Theoretically, the fixed-current source and the capacitor at sawtooth generator decide the maximum turn-on time when no current is sourcing at ZCD clamp circuit and available turn-on time gets shorter proportional to the ZCD sourcing current. © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 I NEGATIVE ON ...
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... AC input is applied again and applies less voltage and current stress on startup. Figure 40. Operation without Input Voltage Absent Circuit © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Figure 41. Operation with Input Voltage Absent Circuit 10. Current Sense: The MOSFET current is sensed using an external sensing resistor for the over-current protection ...
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... Switching current sense path should not share with another path to avoid interference. Some additional components may be needed to reduce the noise level applied to the CS pin. © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0 stabilizing capacitor for V close as possible to the V CC difficult, place the SMD capacitor as close to the corresponding pins as possible ...
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... However, too-high resistance makes the node easily affected by noise. Thus values need to strike a balance between power consumption and noise immunity. Quick charge diode (D106) can be eliminated. Without D106, system operation is normal due to the controller’s highly reliable protection features. 1. Schematic © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Input Voltage Device Range ...
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... AUX Top Insulation: Polyester Tape t = 0.025mm, 4 Layers 4. Electrical Characteristics Inductance 5. Core & Bobbin Core: EER3124, Samhwa (PL-7) (Ae=97.9mm Bobbin: EER3124 © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Transformer Schematic Diagram of FAN7930 Wire Turns 0.1φ× → 4 0.3φ ...
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... C107 33µF/50V C108 220nF/50V C109 47nF/50V C110 1nF/50V C112 47nF/50V C111 220µF/450V C114 2.2nF/450V C115 2.2nF/450V © 2010 Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 Note Part # 1W Q101 1/2W 1W D101 1/4W D102 1/4W D103 1/4W D104 1/4W D105 1/4W ...
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... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...
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... Fairchild Semiconductor Corporation FAN7930 • Rev. 1.0.1 22 www.fairchildsemi.com ...