FAN4800A Fairchild Semiconductor, FAN4800A Datasheet
FAN4800A
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FAN4800A Summary of contents
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... PWM that makes the hold-up time longer. Specifically, the brownout protection and PFC soft-start functions are not in ML4800 and FAN4800. To start evaluating FAN4800A/C, FAN4801/1S/2/2L for replacing existing FAN4800 and ML4800 boards, five things must be done before the fine-tuning procedure: 1. ...
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... FAN4800CNY FAN4800CMY FAN4801NY FAN4801SNY FAN4802NY FAN4802LNY FAN4801MY FAN4801SMY FAN4802MY FAN4802LMY © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 Eco Package Status Green 16-pin Dual In-Line Package (DIP) Green 16-pin Dual In-Line Package (DIP) Green 16-pin Small Out-Line Package (SOP) Green ...
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... Application Diagram VREF Secondary © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 VEA IEA FBPFC IAC ISENSE VREF VRMS VDD SS OPFC FBPWM OPWM RT/CT GND RAMP ILIMIT FAN4800A/C FAN4801/1S/2/2L Figure 1. Typical Application Current Mode 3 VDD www.fairchildsemi.com ...
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... Application Diagram VREF Secondary © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 VEA IEA FBPFC IAC ISENSE VREF VRMS VDD SS OPFC FBPWM OPWM RT/CT GND RAMP ILIMIT FAN4800A/C FAN4801/1S/2/2L VREF Figure 2. Typical Application Voltage Mode 4 VDD www.fairchildsemi.com ...
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... Block Diagram Figure 4. © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 Figure 3. FAN4800A/C Function Block Diagram FAN4801/1S/2/2L Function Block Diagram 5 www.fairchildsemi.com ...
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... Marking Information © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 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 (N:DIP, M:SOP) P – Y: Green Package M – Manufacture Flow Code Figure 5 ...
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... PFC error amplifier. This pin is connected to the PFC output through a divider network. Output of PFC Voltage Amplifier. The error amplifier output for PFC voltage feedback loop. 16 VEA A compensation network is connected between this pin and ground. © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 Figure 6. Pin Configuration (Top View) 7 and C . ...
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... Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol T Operating Ambient Temperature A © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 Parameter < 50°C A DIP SOP Human Body Model, JESD22-A114 ...
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... EAOFF V OK Comparator IN Voltage Level on FBPFC V to Enable OPWM During RD-FBPFC Startup ΔV Hysteresis RD-FBPFC © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 =1000pF unless noted operating specifications. T Conditions V =V -0.1V; OPFC OPWM Open DD TH-ON V =13V; OPFC OPWM Open DD R =6.8kΩ, C ...
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... Input for AC Current AC (4) GAIN GAIN Modulator (3) BW Bandwidth Output Voltage=5.7kΩ × V (3) o(gm SENSE OFFSET © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 (Continued) =1000pF unless noted operating specifications. T Conditions (3) at T=25° =3.75V at T=25°C NONINV INV VEA V =2V, V =1.5V FBPFC ...
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... RMS AC Voltage LOW RMS-L V RMS AC Voltage HIGH RMS-H VEA LOW V EA-L VEA LOW (FAN4801S) VEA HIGH V EA-H VEA HIGH (FAN4801S) I Two-Level Current tc © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 (Continued) =1000pF unless noted operating specifications. T Conditions I =17.67µA, V =1.08V AC RMS V =2.25V, at T=25°C FBPFC V =22V DD V =15V ...
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... PWM Comparator Level Shift PWM-LS Notes: 3. This parameter, although guaranteed by design, is not 100% production tested Gain=K × 5.3 × K=( I RMS © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 (Continued) =1000pF unless noted operating specifications. T Conditions =22V DD V =15V; I =100mA =13V ...
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... Figure 11. V DD-OVP 130.0 129.8 129.6 129.4 129.2 129.0 128.8 128.6 128.4 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ 65℃ 80℃ 95℃ 110℃ 125℃ Figure 13. f OSC-FAN4802/2L © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 2.96 2.94 2.92 2.90 2.88 2.86 2.84 2.82 2.80 2.78 -40℃ -25℃ -10℃ 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 50℃ ...
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... Figure 21. V RD-FBPFC © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0 -40℃ -25℃ -10℃ Figure 16. 21.5 21.0 20 ...
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... Figure 29. V vs. Temperature PFC-ILIMIT © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0 -40℃ -25℃ Figure 24 ...
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... RMS-L 1.942 1.940 1.938 1.936 1.934 1.932 1.930 1.928 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ 65℃ 80℃ 95℃ 110℃ 125℃ Figure 37. V vs. Temperature EA-L © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 10.1 10.0 9.9 9.8 9.7 9.6 9.5 9.4 9.3 9.2 9.1 -40℃ -25℃ -10℃ vs. Temperature 867.5 867.0 866 ...
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... Figure 41. D vs. Temperature PFC-MAX 21.0 20.8 20.6 20.4 20.2 20.0 19.8 19.6 19.4 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ 65℃ 80℃ 95℃ 110℃ 125℃ Figure 43. I vs. Temperature tc © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 14.4 14.3 14.2 14.1 14.0 13.9 13.8 13.7 13.6 -40℃ -25℃ -10℃ vs. Temperature Figure 40. 49.80 49.75 49.70 49.65 49.60 49.55 49.50 -40℃ -25℃ -10℃ 5℃ ...
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... Functional Description The FAN4800A/C and FAN4801/1S/2/2L consist of an average current controlled, continuous boost Power Factor Correction (PFC) front-end and a synchronized Pulse Width Modulator (PWM) back-end. The PWM can be used in current or voltage mode. In voltage mode, feed forward from the PFC output bus can be used to improve the line regulation of PWM ...
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... TriFault detect is an entirely internal circuit. It requires no external components to serve its protective function. PFC Over-Voltage Protection In the FAN4800A/C, FAN4801/1S/2/2L, the PFC OVP comparator serves to protect the power circuit from being subjected to excessive voltages if the load changes suddenly. A resistor divider from the high- voltage DC output of the PFC is fed to FBPFC ...
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... © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 Pulse Width Modulator (PWM) The operation of the PWM section is straightforward, but there are several points that should be noted. Foremost among these is the inherent synchronization of PWM with the PFC section of the device, from which it also derives its basic timing ...
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... PFC output bus is an excellent way to derive the timing ramp for the PWM stage. Generating V DD After turning on the FAN4800A/C, FAN4801/1S/2/2L at 11V, the operating voltage can vary from 9.3V to 28V. The threshold voltage of the V 28V and its hysteresis is 1V. When V OPFC is LOW, and the PWM section is not disturbed ...
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... 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’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 A 19.68 18.66 9 ...
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... 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’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2008 Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 Figure 48. 16-Pin Small Outline Package (SOIC) 23 www.fairchildsemi.com ...
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... Fairchild Semiconductor Corporation FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 24 www.fairchildsemi.com ...