EVAL6599-200W STMicroelectronics, EVAL6599-200W Datasheet - Page 9

• Manufacturer Part Number: EVAL6599-200W
• Description: EVAL BOARD FOR L6599
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVAL6599-200W

• Main Purpose: AC/DC, Primary Side and PFC
• Outputs And Type: 4, Isolated
• Power - Output: 200W
• Voltage - Output: 24V, 12V, 5V, 3.3V
• Current - Output: 6A, 5A, 1A, 700mA
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Resonant
• Frequency - Switching: 95kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6563, L6599
• Input Voltage: 90 V to 264 V
• Output Voltage: 3.3 V to 24 V
• Dimensions: 132 mm x 265 mm
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6599
• Other names: 497-5496

AN2393
2
2.1
Table 1.
Table 2.
+24 V(V) @load(A) +12 V(V) @load(A) +5 V(V) @load(A) +3.3 V(V) @load(A) P
+24 V(V) @load(A) +12 V(V) @load(A) +5 V(V) @load(A) +3.3 V(V) @load(A) P
23.81 - 6.00
24.04 - 3.04
23.84 - 3.02
23.79 - 2.01
23.94 - 0.53
23.82 - 6.00
24.05 - 3.04
23.85 - 3.02
23.80 - 2.01
23.94 - 0.53
Electrical test results
Efficiency measurements
Table 1
of 115 V
and at light load operation, the input power is measured using a Yokogawa WT-210 digital
power meter.
Particular attention has to be paid when measuring input power at full load in order to avoid
measurement errors due to the voltage drop on cables and connections. Therefore please
connect the WT210 voltmeter termination to the board input connector. For the same reason
please measure the output voltage at the output connector or use the remote sense option
of your active load for a correct output voltage measurement.
Efficiency measurements @
Efficiency measurements @
In
condition, at both nominal input mains voltages of 115 V
measured after 30 minutes of warm-up at maximum load. The high efficiency of the PFC
pre-regulator working in FOT mode and the very high efficiency of the resonant stage
working in ZVS (i.e. with negligible switching losses), provides for an overall efficiency better
than 88%. This is a significant high value for a two-stage converter with two output voltages
delivering an output current in excess of 5 amps, especially at low input mains voltage
where the PFC conduction losses increase. Even at lower loads, the efficiency still remains
high.
The global efficiency at full load has been measured even at the limits of the input voltage
range, with good results:
●
●
Table
At V
At V
229.6 W)
and
ac
1,
IN
IN
11.86 - 4.94
11.80 - 4.91
11.91 - 1.98
11.96 - 0.49
11.92 - 0.49
11.86 - 4.94
11.80 - 4.91
11.91 - 1.98
11.96 - 0.49
11.92 - 0.49
and 230 V
Table 2
= 90 V
= 264 V
Table 2
ac
and
ac
show the output voltage measurements at the nominal mains voltages
- full load, the efficiency is 86.88% (P
ac
- full load, the efficiency is 90.90% (P
, with different load conditions. For all measurements, both at full load
Figure 5
4.93 - 0.98
4.93 - 0.98
4.93 - 0.98
4.96 - 0.31
4.97 - 0.31
4.94 - 0.98
4.94 - 0.98
4.94 - 0.98
4.96 - 0.31
4.96 - 0.31
V
V
IN
IN
the overall circuit efficiency is measured at each load
= 115
= 230
V
V
ac
ac
3.35 - 0.71
3.35 - 0.71
3.35 - 0.71
3.35 - 0.31
3.35 - 0.31
3.35 - 0.71
3.35 - 0.71
3.35 - 0.71
3.35 - 0.31
3.35 - 0.31
ac
OUT
and 230 V
OUT
= 208.8 W and P
208.66
138.23
102.79
208.73
138.27
102.83
= 208.7 W and P
OUT
OUT
56.25
21.11
56.27
21.11
(W) P
(W) P
ac
Electrical test results
. The values were
235.00
155.50
115.47
229.96
152.85
114.05
63.55
25.56
63.47
26.47
IN
IN
(W) Efficiency
(W) Efficiency
IN
IN
= 240.3 W)
88.79%
88.89%
89.02%
88.52%
82.58%
90.77%
90.46%
90.16%
88.66%
79.73%
=
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