EVL6563S-400W STMicroelectronics, EVL6563S-400W Datasheet - Page 18

• Manufacturer Part Number: EVL6563S-400W
• Description: EVAL BOARD FOR L6563(400W)
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVL6563S-400W

• Main Purpose: Power Management, Power Factor Correction
• Embedded: No
• Utilized Ic / Part: L6563
• Primary Attributes: 400W Power Factor Correction and Preregulator Combination
• Secondary Attributes: Transition Mode & Active Tracking Boost Function.
• Maximum Operating Temperature: + 60 C
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563S
• Other names: 497-10488

Test results and significant waveforms
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Figure 27. EVL6563S-400W start-up
CH1: Output voltage
CH2: Pin #14 - Vcc voltage
CH3: Pin #10 - RUN
CH4: Pin #13 - Gate drive
Start-up and RUN pin
Figure 27
plug-in. The Vcc voltage rises up to the turn-on threshold, and the L6563S starts the
operation. For a short time the energy is supplied by the Vcc capacitor, then the auxiliary
winding and the charge pump circuit take over. At the same time, the output voltage rises
from the peak value of the rectified mains to the nominal value of the PFC output voltage.
The good phase margin of the compensation network allows a clean start-up, without any
large overshoot.
at 90 Vac, 60 Hz, full load
and
Figure 28
show the waveforms during the start-up of the circuit, at mains
Doc ID 15796 Rev 2
Figure 28. EVL6563S-400W start-up
CH1: Output voltage
CH2: Pin #14 - Vcc voltage
CH3: Pin #10 - RUN
CH4: Pin #13 - Gate drive
at 265 Vac, 50 Hz, full load
AN2994