FA5311 Fuji Electric holdings CO.,Ltd, FA5311 Datasheet
FA5311
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FA5311 Summary of contents
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FA5331P(M)/FA5332P(M) FA5331P(M)/FA5332P(M) Description FA5331P(M) and FA5332P(M) are control ICs for a power factor correction system. These ICs use the average current control system to ensure stable operation. With this system, a power factor of 99% or better can be achieved. ...
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Absolute maximum ratings Item Symbol V V Supply voltage , Output current Input voltage , , SYNC ON/OFF VIN– VDET OVP V IDET P Total power dissipation d (Ta=25 C) ...
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FA5331P(M)/FA5332P(M) Current error amplifier section Item Input threshold voltage Input bias current Open-loop voltage gain Output voltage Output source curent Reference voltage section Item Output voltage Voltage variation 1 (by supply voltage variation) Voltage variation 2 (by load change) Multiplier ...
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Overvoltage protection circuit section Item Input threshold voltage Input threshold voltage/reference voltage(V THOVP Delay time Overcurrent limiting circuit section Item Input threshold voltage Delay time Output ON/OFF circuit section Item Threshold voltage Input current at ON Undervoltage lockout circuit section ...
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FA5331P(M)/FA5332P(M) Description of each circuit 1. Oscillator section This section outputs sawtooth waves oscillating between 0.15 and 3.55V using the capacitor charge and discharge characteristics. Figure 1 shows how to connect the required external components to this circuit. The oscillation ...
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Current error amplifier and overcurrent limiting circuit The current error amplifier forms a current loop to change the input circuit current into sinusoidal waves. As Fig. 3 shows, the multiplier output is connected to pin 2 (IIN –) through ...
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FA5331P(M)/FA5332P(M) 6. ON/OFF control input circuit Figure 7 shows the ON/OFF control input circuit. If pin 12 is set to the high level (enable), this IC outputs pulses from the OUT pin. If pin 12 is set to the low ...
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... Pin Vin: Minimum AC input voltage (effective value) [V] Pin: Maximum input power [W] Since the threshold voltage of the overcurrent limiting circuit (pin 16) is –1.15V for FA5311 for and –1.10V for FA5332, the peak input current limit (ip) is determined by: 1.15 FA5331: ip= ............................................................................. (12) Rs FA5332: ip= 1 ...
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FA5331P(M)/FA5332P(M) 4. No-load operation The following condition should be meet to prevent from overvoltage and audible noise during no-load or light-load operation. For FA5331 (Fig.10) 0.85• OFST 3 (3.5•10 –0.26•R )•12 n where, = 42+0.26•R n and, ...
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Characteristic curves ( Oscillation frequency (f ) vs. OSC timing resistor resistance ( FA5331 Oscillation frequency (f ) vs. OSC ambient temperature (Ta) FA5331 Output duty cycle vs. CS terminal voltage (V FA5332 200 100 ...
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FA5331P(M)/FA5332P(M) IIN– terminal voltage vs. VDET terminal voltage Multiplier I/O FA5331 IDET terminal voltage vs. IIN– terminal voltage Normal operation FA5331 0 –0.5 –1.0 –1.5 0 0.5 1.0 IIN– terminal voltage [V] H-level output voltage (V ) vs. OH output ...
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Overcurrent limiting threshold voltage vs. ambient temperature (Ta) FA5331 OVP terminal threshold voltage vs. ambient temperature (Ta) FA5331 Supply current (I ) vs. supply voltage (V CC Normal operation FA5332 –1.08 –1.09 –1.1 –1.11 –1.12 –1.13 –40 –20 FA5332 1.67 ...
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FA5331P(M)/FA5332P(M) Application circuit Example of FA5331 application circuit Example of FA5332 application circuit Parts tolerances characteristics are not defined in the circuit design sample shown above. When designing an actual circuit for a product, you must determine parts tolerances and ...