EVL6563S-250W STMicroelectronics, EVL6563S-250W Datasheet - Page 14

• 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 16. EVL6563S-250W TM PFC: MOSFET
CH1: Q1 gate voltage, CH2: Q2 gate voltage,
CH3: Q1 drain current
CH4: Q2 drain current
Figure 18. EVL6563S-250W TM PFC: L6563S
CH1: GD - pin #13, CH2: ZCD - pin #11, CH3: CS - pin #4
CH4: MULT - pin #3
filtering needs. In fact, a large capacitance introduces a conduction dead-angle of the AC
input current in itself, therefore reducing the effectiveness of the optimizer circuit.
In
transition mode control; once the inductor has transferred all the energy stored, a falling
edge on the ZCD pin (#11) is detected and it triggers a new on-time by setting the gate drive
high. Once the current signal on the CS pin (#4) has reached 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. During
the following off-time the energy stored in the inductor is transferred into the output capacitor
and to the load. At the end of the current conduction a new demagnetization is detected by
the ZCD which provides for a new on-time of the MOSFET.
In
current at 100 Vac - 50 Hz - full load
control pins-1 at 115 Vac - 60 Hz -
full load
Figure 18
Figure 19
the detail of the waveforms at switching frequency shows the operation of the
the waveforms of the MULT, V
Doc ID 16849 Rev 2
Figure 17. EVL6563S-250W TM PFC: MOSFET
CH1: Q1 gate voltage, CH2: Q2 gate voltage
CH3: Q1 drain current
CH4: Q2 drain current
Figure 19. EVL6563S-250W TM PFC: L6563S
CH1: INV - pin #1, CH2: MULT - pin #3, CH3: COMP - pin #2
CH4: V
FF
, INV, and COMP pins are shown.
FF
- pin #5
current at 100 Vac - 50 Hz - full load
control pins-2 at 115 Vac - 60 Hz -
full load
AN3119