EVL6563S-250W STMicroelectronics, EVL6563S-250W Datasheet - Page 18

• 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 27. EVL6563S-250W TM PFC: startup
CH1: PFC output voltage
CH2: gate drive (pin #13)
CH3: RUN (pin #10)
CH4: PWM_stop (pin #9)
Figure 26. EVL6563S-250W TM PFC: startup attempt at 80 Vac-60 Hz - full load
In
pin does not allow the PFC startup even if the Vcc has reached the turn-on threshold. PFC
output voltage remains at the peak of the input sinewave.
In
shown. In both cases the mains voltage was increased or decreased slowly; as seen, both
at turn-on or turn-off there are no bouncing or starting attempts by the PFC converter.
with slow input voltage increasing -
full load
Figure 27
Figure 26
and
a startup tentative below the threshold is shown. As seen, at startup the RUN
28
the waveforms of the circuit during operation of brown-out protection are
CH1: PFC output voltage
CH2: Vcc voltage (pin #14)
CH3: RUN (pin #10)
CH4: gate drive (pin #13)
Doc ID 16849 Rev 2
Figure 28. EVL6563S-250W TM PFC: turn-off
CH1: PFC output voltage
CH2: gate drive (pin #13)
CH3: RUN (pin #10)
CH4: PWM_stop (pin #9)
with slow input voltage decreasing
- full load
AN3119