HA16178P Datasheet, PDF (11/25 Pages) Renesas Technology Corp – Power Factor Correction Controller IC

HA16178P/FP
5. PFC ON/OFF Function
Rec+
Rec–
R1
720 k
R2 C1
20 k 2.2 µ
Em
5
PFC-ON
PFC ON/OFF control
1.75 V
1.60 V
VPFC-ON (DC) = ^{2 × Em} × ^R2
π
R1 + R2
=
2 × √2 × Vac
π
× ^R2
R1 + R2
Vac = ^{VPFC-ON (DC) × π} × ^{R1 + R2}
2 × √2
R2
Vac
71.9 V
PFC-ON
1.75 V
65.8 V
1.60 V
PFC-OFF
(Internal signal)
PFC ON status
REJ03D0903-0100 Rev.1.00 Jun 12, 2007
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