EVL6563S-250W STMicroelectronics, EVL6563S-250W Datasheet - Page 16

• Manufacturer Part Number: EVL6563S-250W
• Description: EVAL BOARD FOR L6563(250W)
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6563S-250W

• Main Purpose: Power Management, Power Factor Correction
• Embedded: No
• Utilized Ic / Part: L6563
• Primary Attributes: 250W Power Factor Correction and Preregulator Combination
• Secondary Attributes: Transition Mode & Active Tracking Boost Function.
• Board Size: 88 mm x 116 mm
• Maximum Operating Temperature: + 50 C
• Operating Supply Voltage: 90 V to 265 V
• Product: Power Management Modules
• Dimensions: 88 mm x 116 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563S
• Other names: 497-10489

Test results and significant waveforms
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Figure 20. L6562A input mains surge 90 Vac to
CH1: Vout, CH2: MULT (pin #3), CH4: I_AC
Figure 22. L6562A: input mains dip 140 Vac to
CH1: Vout, CH2: MULT (pin #3), CH4: I_AC
voltage has a significant deviation from the nominal value. The circuit has the same behavior
in the case of mains surge at any input voltage, and it is not affected even if the input mains
surge happens at any point of the input sinewave.
In
the internal circuitry has detected the decreasing of the mains voltage and it has activated
the C
mains cycles it comes back to the nominal value. The situation is different if we compare it
with the performance of a controller without the V
PFC using the L6562A and delivering similar output power is shown; in the case of a mains
dip from 140 Vac to 90 Vac the output voltage variation is not very different but the output
voltage requires a longer time to restore the original value. In tests with a wider voltage
variation (e.g. 265 Vac to 90 Vac) the output voltage variation of a PFC without the voltage
feed-forward fast discharging is far more emphasized.
140 Vac - no V
90 Vac - no V
Figure 23
FF
internal fast discharge. As seen, in this case the output voltage changes but in a few
the circuit behavior in the case of mains dip is shown; as previously described,
FF
FF
input
input
Doc ID 16849 Rev 2
Figure 21. EVL6563S-250W TM PFC: input
CH1: Vout, CH3: V
CH4: I_AC
Figure 23. EVL6563S-250W TM PFC: input
CH1: Vout, CH2: MULT (pin #3), CH2: V
CH4: I_AC
FF
function. In
mains surge 90 Vac to 140 Vac
mains dip 140 Vac to 90 Vac
FF
(pin #5), CH2: MULT (pin #3)
Figure 22
FF
the behavior of a
(pin #5)
AN3119