The UCC28019 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM)

UCC28019

Manufacturer Part NumberUCC28019
DescriptionThe UCC28019 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM)
ManufacturerTexas Instruments
UCC28019 datasheet
 


Specifications of UCC28019

Uvlo Thresholds On/off(v)10.5/9.5Operating Supply(max)(v)22
Startup Current(ma)0.1Operating Supply Current(ma)7
Vref(v)5Vref Tol(%)2
Duty Cycle(max)(%)99.3Practical Operating Frequency(max)(mhz)0.65
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UCC28019
SLUS755B – APRIL 2007 – REVISED DECEMBER 2007
The total closed loop transfer function, G
G
( f ) G ( f )G
( f )G ( f )
=
VL _ total
FB
PWM _ PS
G
( f )
20
log G
( f )
(
=
VL _ totaldB
VL _ total
100
50
0
-50
-100
-150
0.01
40
Submit Documentation Feedback
, contains the combined stages and is plotted in
VL_total
EA
)
CLOSED LOOP VOLTAGE TRANSFER
FUNCTION
Phase
0.1
1
10
100
f - Hz
Figure 32. Closed Loop Voltage Bode Plot
Product Folder Link(s):
UCC28019
www.ti.com
Figure
32.
100
80
60
Gain
40
20
0
3
4
1*10
1*10
Copyright © 2007, Texas Instruments Incorporated