Datasheet

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