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EVAL6563-80W
L6563 80W High performanceTM PFC with active tracking boost function
Data Brief
General description
L6563 is a current-mode PFC controller operating in Transition Mode (TM). Based on the core of a standard TM PFC controller, it offers improved performance and additional functions, such as active tracking boost function. In some applications it may be advantageous to regulate the output voltage of the PFC pre-regulator so that it tracks the RMS input voltage rather than at a fixed value like in conventional boost pre-regulators. This is commonly referred to as "tracking boost" or "follower boost" approach. With the L6563 this can be realized by connecting a resistor between the TBO pin (pin 6) and ground. The board implements a 80 W, wide-range mains input, PFC pre-regulator.
Evaluation board
January 2007
Rev 1
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Features
EVAL6563-80W
1
Features
Figure 1. EVAL6563 - 80W schematic
Boost inductor spec:

E25x13x17 core, 3C85 ferrite or equivalent 1.6 mm gap for 0.43 mH primary inductance Primary: 80 turns 20x0.1 mm Secondary: 9 turns 0.1 mm EVAL6563-80W: PCB and components layout (top view, real size: 64x94 mm)
Figure 2.
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EVAL6563-80W Figure 3. EVAL6563-80W: soldering side (top view)
Features
Table 1.
Vin(VAC) 90 115 135 180 230 265
EVAL6563 - 80W: evaluation results at full load
Pin (W) 85.3 84.9 83.7 83.5 85.2 85.0 Vo(VDC) 219.4 244.1 263.7 307.6 356.7 390.6 VO(Vpk-pk) 16.6 15.0 13.9 14.5 13.0 12.1 Po (W) 79.64 80.80 80.16 80.28 81.33 80.85 (%) 93.4 95.2 95.8 96.1 95.5 95.1 PF 0.999 0.998 0.997 0.993 0.984 0.974 THD (%) 3.7 4.3 4.8 6.0 7.7 9.5
Note:
1
Measurement done with the line filter shown in Figure 4. Table 2.
Vin(VAC) 90 115 135 180 230 265
EVAL6563 - 80W: evaluation results at half load
Pin (W) 43.4 42.6 43.1 43.8 45.6 46.0 Vo(VDC) 219.9 244.5 264.0 307.7 356.8 390.7 VO(Vpk-pk) 8.6 7.7 7.3 7.7 6.8 6.7 Po (W) 40.90 40.10 40.39 40.31 41.03 40.63 (%) 94.2 94.1 93.7 92.0 90.0 88.3 PF 0.997 0.994 0.989 0.978 0.951 0.920 THD (%) 4.8 5.7 6.5 8.4 9.6 14.2
2
Measurement done with the line filter shown in Figure 4. Figure 4. Line filter ( not tested for EMI compliance )
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Revision history Figure 5. EVAL6563 - 80W: Vout vs. Vin ( tracking boost )
EVAL6563-80W
2
Revision history
Table 3.
Date 10-Jan-2007
Revision history
Revision 1 First issue Changes
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EVAL6563-80W
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