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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350-W, Universal Input, 390-V
Design Goals
This example illustrates the design process and component selection for a continuous conduction mode power
factor correction boost converter utilizing the UCC28019. The target design is a universal input, 350-W PFC
designed for an ATX supply application. This design process is directly tied to the UCC28019 Design Calculator
spreadsheet that can be found in the Tools section of the UCC28019 product folder on the Texas Instruments
website.
PARAMETER
Input characteristics
Input voltage
V
IN
Input frequency
f
LINE
V
AC(on)
I
= 0.9 A
OUT
Brown out voltage
V
AC(off)
I
= 0.9 A
OUT
Output characteristics
V
OUT
85 VAC ≤ V
Output voltage
47 Hz ≤ f
0 A ≤ I
85 VAC ≤ V
Line regulation
I
= 0.440 A
OUT
V
= 115 VAC, f
IN
0 A ≤ I
Load regulation
V
= 230 VAC, f
IN
0 A ≤ I
V
RIPPLE(SW)
V
= 115 VAC, f
IN
I
= 0.9 A
High frequency output voltage
OUT
ripple
V
RIPPLE(SW)
V
= 230 VAC , f
IN
I
= 0.9 A
OUT
V
RIPPLE(f_LINE)
V
= 115 VAC, f
IN
I
= 0.9 A
Line frequency output voltage
OUT
ripple
V
RIPPLE(f_LINE)
V
= 230 VAC, f
IN
I
= 0.9 A
OUT
I
OUT
Output load current
85 VAC ≤ V
47 Hz ≤ f
Output power
P
OUT
Output over voltage protection
V
OUT(OVP)
Output under voltage protection
V
OUT(UVP)
Copyright © 2007, Texas Instruments Incorporated
DESIGN EXAMPLE
Output, PFC Converter
DC
Table 1. Design Goal Parameters
TEST CONDITION
≤ 265 VAC
IN
≤ 63 Hz
LINE
≤ 0.9 A
OUT
≤ 65VAC
IN
= 60 Hz
LINE
≤ 0.9 A
OUT
= 50 Hz
LINE
≤ 0.9 A
OUT
= 60 Hz
LINE
= 50 Hz
LINE
= 60 Hz,
LINE
= 50 Hz
LINE
≤ 265 VAC
IN
≤ 63 Hz
LINE
Product Folder Link(s):
UCC28019
UCC28019
SLUS755B – APRIL 2007 – REVISED DECEMBER 2007
MIN
TYP
MAX
UNIT
85
115
265
VAC
47
63
Hz
75
VAC
65
370
390
410
VDC
5%
5%
5%
3.9
3.9
Vpp
19.5
19.5
0.9
A
350
W
410
V
370
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