EVAL6599-90W STMicroelectronics, EVAL6599-90W Datasheet - Page 11

• Manufacturer Part Number: EVAL6599-90W
• Description: EVAL BOARD FOR L6599
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVAL6599-90W

• Main Purpose: AC/DC, Primary Side and PFC
• Outputs And Type: 1, Isolated
• Power - Output: 90W
• Voltage - Output: 19V
• Current - Output: 4.7A
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Resonant
• Frequency - Switching: 90kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6563, L6599
• Input Voltage: 90 V to 264 V
• Output Voltage: 19 V
• Dimensions: 78 mm x 174 mm
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6599
• Other names: 497-5497

AN2321
Figure 8.
CH3: +19 V Output voltage
CH4: +19 V Output current
Table 3.
Table 4.
Figure 8
0 to 100%. During operation at zero load, the circuit is working in burst mode as described
before then, as soon as the load increases it works in continuous switching operation. As
shown, due to the fact that the PFC is always operating, the circuit response is fast enough
to avoid output voltage dips. In
Even in this case the transition in clean and doesn't show any problem for the output voltage
regulation.
Thus, it is clear that the proposed architecture is the most suitable for power supply
operating with strong load variation without any problem related to the load regulation.
Load transition 0 ÷ 100%
Vout [V]
Vout [V]
shows the waveforms of the output voltage and current during a load variation from
19.01
19.01
19.01
19.01
19.01
19.01
19.01
19.01
Stand-by consumption - Vin=115 Vac
Stand-by consumption - Vin=230 Vac
Iout [mA]
Iout [mA]
Figure
80
53
27
13
80
53
27
13
9, the opposite load transition is checked (100% to 0).
Figure 9.
CH3: +19 V Output voltage
CH4: +19 V Output current
Load transition 100% ÷ 0
Pout [W]
Pout [W]
0.25
0.25
1.5
0.5
1.5
0.5
1
1
Pin [W]
Pin [W]
1.08
0.66
1.68
0.67
2.4
Test results
3
2
1
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