SG6932_08 FAIRCHILD [Fairchild Semiconductor], SG6932_08 Datasheet
SG6932_08
Related parts for SG6932_08
SG6932_08 Summary of contents
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SG6932 PFC / Forward PWM Controller Features Interleaved PFC/PWM Switching Low Operating Current Innovative Switching-Charge Multiplier-divider Multi-vector Control for Improved PFC Output Transient Response Average Current Mode for Input-current Shaping PFC Over-voltage and Under-voltage Protections PFC and PWM Feedback Open-loop ...
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Application Diagram © 2007 Fairchild Semiconductor Corporation SG6932 • Rev. 1.1.3 Figure 1. Typical Application 2 www.fairchildsemi.com ...
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Block Diagram © 2007 Fairchild Semiconductor Corporation SG6932 • Rev. 1.1.3 Figure 2. Function Block Diagram 3 www.fairchildsemi.com ...
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Marking Information SG6932TP XXXXXXXXYWWV Pin Configuration © 2007 Fairchild Semiconductor Corporation SG6932 • Rev. 1.1.3 T: D=DIP, S=SOP P : XXXXXXXX: Wafer Lot Y: Year; WW: Week V: Assembly Location Figure 3. Top Mark VRMS ...
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Pin Definitions Pin # Name Description 1 VRMS Line-Voltage Detection. The pin is used for PFC multiplier and brownout protection. Oscillator Setting. One resistor connected between RI and ground determines the switching frequency. A resistor with resistance between 12 ~ ...
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Absolute Maximum Ratings 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 ...
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Electrical Characteristics V =15V 25°C unless otherwise noted Symbol Parameter V Section DD V Continuously Operating Voltage DD-OP I Start-Up Current Operating Current DD-OP V Start Threshold Voltage TH-ON V Minimum Operating Voltage ...
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Electrical Characteristics V =15V 25°C unless otherwise noted Symbol Parameter V Output High Voltage on V FBHIGH V Voltage Level on FBPFC to Enable OPWM During Start-up RD-FBPFC t Debounce Time of PFC UVP UVP_PFC Current ...
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Electrical Characteristics V =15V 25°C unless otherwise noted Symbol Parameter PWM Stage FBPWM current Comparator Attenuation V Z Input Impedance FB FB PWM Open-Loop Protection Voltage OPEN-LOOP t Interval of PWM Open-Loop OPEN-PWM- ...
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Typical Characteristics 20.0 18.0 16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ Temperature ( ℃ ) Figure 5. Startup (I DD-ST 15.0 14.8 14.6 14.4 14.2 14.0 13.8 13.6 13.4 13.2 13.0 -40℃ ...
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Typical Characteristics 3.30 3.29 3.28 3.27 3.26 3.25 3.24 3.23 3.22 3.21 3.20 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ Temperature (℃) Figure 11. PFC Over-voltage Protection vs. Temperature 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 -40℃ -25℃ -10℃ 5℃ ...
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Typical Characteristics 66.0 65.5 65.0 64.5 64.0 63.5 63.0 62.5 62.0 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ Temperature (℃) Figure 17. Maximum Duty Cycle (SS=6V) vs. Temperature 4.80 4.75 4.70 4.65 4.60 4.55 4.50 4.45 4.40 4.35 4.30 4.25 4.20 ...
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Functional Description The highly integrated SG6932 is designed for power supplies with boost PFC and forward PWM. It requires very few external components to achieve versatile protections and compensation. The proprietary interleave-switching synchronizes the PFC and PWM stages and reduces ...
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PFC Operation The purpose of a boost active power factor corrector (PFC shape the input current of a power supply. The input current waveform and phase follow that of the input voltage. Average-current-mode control is utilized for continuous-current-mode ...
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Cycle-by-Cycle Current Limiting SG6932 provides cycle-by-cycle current limiting for both PFC and PWM stages. Figure 29 shows the peak current limit for the PFC stage. The PFC gate drive is terminated once the voltage on the ISENSE pin goes below ...
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PCB Layout SG6932 has a single ground pin, which prevents high sink currents in the output being returned separately. Good high-frequency or RF layout practices should be followed. Avoid long PCB traces and component leads. Locate decoupling capacitors near the ...
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Reference Circuit © 2007 Fairchild Semiconductor Corporation SG6932 • Rev. 1.1.3 Figure 33. Reference Circuit 17 www.fairchildsemi.com ...
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Physical Dimensions 16 1 (0.40) TOP VIEW 0.38 MIN 5.33 MAX 2.54 SIDE VIEW NOTES: UNLESS OTHERWISE SPECIFIED A THIS PACKAGE CONFORMS TO JEDEC MS-001 VARIATION BB B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD ...
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Physical Dimensions (Continued) 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 ...
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Fairchild Semiconductor Corporation SG6932 • Rev. 1.1.3 20 www.fairchildsemi.com ...