UCC28070 datasheet(9/39 Pages) TI

Part #	UCC28070

Description	Interleaving Continuous Conduction Mode PFC Controller

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Manufacturer	TI [Texas Instruments]

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TYPICAL CHARACTERISTICS

VREF vs Tem perature

5.82

5.88

5.94

6

6.06

6.12

6.18

-50

0

50

100

150

Tem perature (C)

VREF (IREF = 0mA)

Supply Current over Tem perature

0

2

4

6

8

10

12

-60

-40

-20

0

20

40

60

80

100

120

140

Tem perature (C)

IVCC, VCC=12V, disabled

IVCC, VCC=12V, enabled

IVSENSE vs Temperature

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

-50

0

50

100

150

Tem perature (C)

VSENSE Regulation vs Tem perature

2.94

2.96

2.98

3

3.02

3.04

3.06

-60

-40

-20

0

20

40

60

80

100

120

140

Tem perature (C)

MultiplierCurrentvs.Voltage AmplifierOutput

0.00

20.00

40.00

60.00

80.00

100.00

120.00

140.00

160.00

180.00

0.0

1.0

2.0

3.0

4.0

5.0

6.0

VAOVoltage AmplifierOutput(V)

Level1

Level2

Level3

Level4

Level5

Level6

Level7

Level8

QVFFLevel

Multiplier Constant vs. Tem perature

14

15

16

17

18

19

20

-60

-40

-20

0

20

40

60

80

100

120

140

Tem perature (C)

VAO = 1.2V

VAO = 1.5V

VAO = 3.0V

VAO = 5.0V

UCC28070

SLUS794A – NOVEMBER 2007 – REVISED MARCH 2008

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

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