TOP245P datasheet(20/35 Pages) POWERINT

20 / 35 page

DER-18

DVD Recorder Supply – TOP245P

March 30, 2004

Page 20 of 35

Power Integrations

Tel: +1 408 414 9200 Fax: +1 408 414 9201

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8.2

Cross Regulation

8.2.1 Nominal load

Load Condition: 3.3Vsb/2A; 5Vsw/0.4A; 5Vsb/0.4A; 12Vsw/0.3A, 12Vsb/0.1A;

-5Vsw/0.08A; -5Vsb/240 ohms, -22Vsb/11K; +33Vsb/16Kohms; 3.3V VFD/20 ohms

Vout (VDC)

Load (A)

@115V

@230V

3.3Vsb

3.25 V

3.25

5Vsw/

0.4A

5.27

5Vsb/

0.4A

5.28

12Vsw

0.3A

12.50

12.46

12Vsb

0.1A

12.51

12.47

-5Vsw

0.08A

-5.08

-5.15

-5Vsb

240 ohms

-5.17

-5.15

-22Vsb

11K

-22.81

-22.71

+33Vsb

16Kohms

33.07

32.94

3.3V VFD

20 ohms

3.24

Figure 9 –Nominal load at Room Temperature.

8.2.2 Peak Load (One output at a time)

At 115V

Vout

Iout

Vout

(measured)

Iout

Vout

(measured)

Iout

Vout

(measured)

Iout

Vout

(measured)

3.3Vs

2.51Apk

3.15 V

3.27 V

3.23 V

3.21 V

5Vsw/

0.4A

5.27

1.2Apk

5.22

0.4A

5.27

0.4A

5.27

5Vsb/

0.4A

5.28

0.4A

5.28

0.55Apk

5.28

0.4A

5.28

12Vsw

0.3A

12.5

0.3A

12.71

0.3A

12.52

1.2Apk

12.2

12Vsb

0.1A

12.51

0.1A

12.72

0.1A

12.53

0.1A

12.26

-5Vsw

0.08A

-5.22

0.08A

-5.37

0.08A

-5.21

0.08A

-5.41

-5Vsb

240

Ω

-5.22

240

Ω

-5.37

240

Ω

-5.21

240

Ω

-5.41

22Vsb

11K

Ω

-22.92

11K

Ω

-23.5

11K

Ω

-22.89

11K

Ω

-23.58

+33Vs

16K

Ω

33.26

16K

Ω

34.05

16K

Ω

33.23

16K

Ω

34.05

3.3V

VFD

Ω

3.25

Ω

3.31

Ω

3.26

Ω

3.26

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