EVL6563S-100W STMicroelectronics, EVL6563S-100W Datasheet - Page 14

• Manufacturer Part Number: EVL6563S-100W
• Description: EVAL BOARD FOR L6563(100W)
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6563S-100W

• Main Purpose: Power Management, Power Factor Correction
• Embedded: No
• Utilized Ic / Part: L6563
• Primary Attributes: 100W Power Factor Correction and Preregulator Combination
• Secondary Attributes: Transition Mode & Active Tracking Boost Function.
• Board Size: 90 mm x 83 mm
• Maximum Operating Temperature: + 60 C
• Operating Supply Voltage: 90 V to 265 V
• Product: Power Management Modules
• Dimensions: 90 mm x 83 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563S
• Other names: 497-10490

Test results and significant waveforms
14/33
Figure 14. EVL6563H 100W TM PFC: Vds and
CH4: Q1 drain voltage
CH2: MULT voltage - pin #3
CH1: L2 inductor current
In
of transition-mode control. Once the inductor has transferred all the stored energy, a falling
edge on the ZCD pin (pin #11) is detected and it will trigger a new on-time by setting the
gate drive high. As soon as the current signal on the CS pin (pin #4) reaches the level
programmed by the internal multiplier circuitry according to the input mains instantaneous
voltage and the error amplifier output level, the gate drive is set low and MOSFET
conduction is stopped. A following off-time will transfer the energy stored in the inductor into
the output capacitor and to the load. At the end of the current conduction a new
demagnetization will be detected by the ZCD that will provide for a new on-time of the
MOSFET.
inductor current at 230 Vac, 50 Hz,
full load
Figure 16
and
17
the detail of the waveforms at switching frequency shows the operation
Doc ID 16279 Rev 2
Figure 15. EVL6563H 100W TM PFC: Vds and
CH4: Q1 drain voltage
CH2: MULT voltage - pin #3
CH1: L2 inductor current
inductor current at 230 Vac, 50 Hz,
full load (detail)
AN3065