L4981A_01 STMICROELECTRONICS [STMicroelectronics], L4981A_01 Datasheet - Page 13

• Manufacturer Part Number: L4981A_01
• Description: POWER FACTOR CORRECTOR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

DEMO BOARD EVALUATION RESULTS
Table 2. Nominal Power range at 110Vac.
Table 3. Nominal Power range at 220Vac.
REFERENCE:
AN628 - DESIGNING A HIGH POWER FACTOR SWITCHING PREREGULATOR WITH THE L4981
110Vac
132Vac
176Vac
220Vac
264Vac
88Vac
V
V
mains
mains
CONTINUOUS MODE
366W
370W
372W
378W
381W
381W
P
P
out
out
404Vdc
406Vdc
407Vdc
410Vdc
412Vdc
412Vdc
V
V
out
out
397W
395W
394W
394W
395W
395W
P
P
in
in
2.2%
4.7%
6.4%
8.1%
THD
THD
5%
3%
0.998
0.999
0.999
0.997
0.993
0.987
PF
PF
L4981A - L4981B
.945
.959
.964
.964
Eff.
Eff.
.92
.94
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