2

dc2202af

DEMO MANUAL DC2202A

Quick start proceDure

LOAD CURRENT (A)

60

70

100

65

75

80

90

85

95

1.5

DC2202A F01

5

1

0.5

2

3.5

4.5

3

2.5

4

SYNC/MODE = GND

INPUT VOLTAGE (V)

10

40

100

30

20

50

60

80

70

90

18

DC2202A F02

42

12

6

24

35

30

40

45

50

35

30

25

20

15

10

–5

0

5

FREQUENCY (MHz)

0

900

100

200

300

500

400

600

700

800

1000

40

45

50

35

30

25

20

15

10

–5

0

5

FREQUENCY (MHz)

0

900

100

200

300

500

400

600

700

800

1000

DC2202A DEMO BOARD

(WITH EMI FILTER INSTALLED)

DC2202A F03

CLASS 5 PEAK LIMIT

BURST MODE

SPREAD SPECTRUM MODE

HORIZONTAL POLARIZATION

PEAK DETECTOR

CLASS 5 PEAK LIMIT

BURST MODE

SPREAD SPECTRUM MODE

VERTICAL POLARIZATION

PEAK DETECTOR

Figure 1. LT8640 Demo Circuit DC2202A Efficiency

Figure 2. LT8640 Demo Circuit DC2202A

Temperature Rising vs Input Voltage

Figure 3. LT8640 Demo Circuit DC2202A EMI Performance in CISPR25