FAN4810 Fairchild Semiconductor, FAN4810 Datasheet
FAN4810
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FAN4810 Summary of contents
Page 1
... CLKSD V REF 9 General Description The FAN4810 is a controller for power factor corrected, switched mode power supplies. The FAN4810 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 IEC1000-3-2 specifi- cation. It also includes a TriFault Detect™ ...
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... PFC driver output 13 V Positive supply Buffered output for the internal 7.5V reference REF 15 V PFC transconductance voltage error amplifier input FB 16 VEAO PFC transconductance voltage error amplifier output 2 FAN4810 (Pin Out IEAO VEAO SENSE V REF RMS ...
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... A Conditions VEAO = 3.75V NON INV INV Note ±0.5V OUT V = ±0.5V 1.5V IN OUT 11V < V < 16. VEAO = 3.75V NON INV INV FAN4810 Max. Units 0.3 V CCZ 1.5 µJ 150 °C 150 °C 260 °C 80 °C/W 105 ° ...
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... FAN4810 Electrical Characteristics(Continued) Unless otherwise specified 15V Symbol Parameter Output High Voltage Output Low Voltage Source Current Sink Current Open Loop Gain Power Supply Rejection Ratio OVP Comparator Threshold Voltage Hysteresis Tri-Fault Detect Fault Detect HIGH Time to Fault Detect HIGH ...
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... OUT I = -100mA OUT I = 10mA OUT 20mA OUT I = 100mA OUT C = 1000pF 12V 14V pin (VEAO - 0.625)] ; VEAO =5V. AC MAX FAN4810 Min. Typ. Max. Units 0.4 % 7.35 7. 0.4 0.8 V 0.7 2.0 V 0 ...
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... FAN4810 Typical Performance Characteristics Voltage Error Amplifier (VEA) Transconductance (g 180 160 140 120 100 –500 0 IEA INPUT VOLTAGE (mV) Current Error Amplifier (IEA) Transconductance (g 6 180 160 140 120 100 (V) 480 420 360 300 ...
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... REV. 1.0.12 9/24/03 PFC Circuit Blocks Gain Modulator Figure 1 shows a block diagram of the FAN4810. The gain modulator is the heart of the PFC this circuit block which controls the response of the current loop to line voltage waveform and frequency, rms line voltage, and PFC output voltage ...
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... V The V should be set at a level where the active and passive FB external power components and the FAN4810 are within their safe operating voltages, but not so low as to interfere with the boost voltage regulation loop. 1 IEAO TRI-FAULT 0 ...
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... The gain vs. input voltage of the FAN4810’s voltage error amplifier has a specially shaped non-linearity such that under steady-state operating conditions the transconductance of the error amplifi local minimum. Rapid perturbations in line or load condi- tions will cause the input to the voltage error amplifi ...
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... Solving for the minimum value 5ms dly Generating V The FAN4810 is a voltage-fed part. It requires an external (3) 15V, ±10% (or better) shunt voltage regulator, or some other V regulator, to regulate the voltage supplied to the part at CC 15V nominal. This allows low power dissipation while at the same time delivering 13V nominal gate drive at the PFC OUT output ...
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... 15V Zener + (not used) C7 1.5nF 71.5K R12 IEAO VEAO 2 15 IAC ISENSE REF 4 13 VRMS VCC 5 12 CLKSD V01 6 11 CLK OUT 7 10 RAMP1 GND GND FAN4810 FAN4810 +385 C19 1.0 F C20 1.0 F CLK OUT VCC REF 11 ...
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... FAN4810 Package Dimensions 16-Lead Plastic Dual Inline Package (PDIP) 0.300" Body Width Inches Symbol Min. Max. A — .210 A1 .015 — A2 .115 .195 B .014 .022 B1 .045 .070 C .008 .014 D .745 .840 D1 .005 — E .300 .325 E1 .240 .280 e ...
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... Terminal numbers are shown for reference only. 5. "C" dimension does not include solder finish thickness. 6. Symbol "N" is the maximum number of terminals SEATING – C – PLANE LEAD COPLANARITY ccc C FAN4810 Millimeters Notes Max. Min. Max. .069 1.35 1.75 .010 0.10 0.25 .020 0.33 0.51 ...
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... Ordering Information Part Number FAN4810N FAN4810M FAN4810MX DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...