DAC2800S 데이터 시트보기 (PDF) - M.S. Kennedy

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DAC2800S

6W DC-DC CONVERTERS

M.S. Kennedy 

TYPICAL PERFORMANCE

GRAPHS

DAC2812S

EFFICIENCY CONTOURS

50

40%

40

30

TEMP = 25°C

50%

55%

60%

64%

67%

20

69%

10

1

2

3

4

5

OUTPUT POWER, POUT (W)

LOW LINE DROP OUT

16

15

14

13

12

11

10

0 1 2 3 45 6

OUTPUT CURRENT, POUT (W)

TURN ON THRESHOLD

28

24

20

16

12

10K

20K 30K 40K 60K 90K

SET POINT RESISTOR, RSP (Ω)

AUDIO REJECTION

0

VIN = 28V

–20

IOUT = 450mA

–40

–60

–80

–100

1K

10K

100K

FREQUENCY, f (Hz)

EFFICIENCY CONTOURS

50

30%

TEMP = –55°C

40%

40

50%

55%

30

60%

63%

65% 66%

20

67%

68%

11

68%

.18 .36 .72 1.08 1.44 1.8

OUTPUT CURRENT, IOUT (A)

LOAD TRANSIENT RESPONSE

VOUT

450mA

LOAD

225mA NO OUTPUT BUS CAPCITANCE

TIME, t (100µsec/DIV)

LINE TRANSIENT RESPONSE

VOUT

IOUT = 450mA

VIN

40V

16V

INCLUDES 4.7µf ON OUTPUT BUS

TIME, t (100µsec/DIV)

EFFICIENCY CONTOURS

50 40%

40

30

TEMP =

125°C

50%

56%

61%

64%

66%

20

10

1

2

3

4

5

OUTPUT CURRENT, POUT (W)

LOAD TRANSIENT RESPONSE 200µF

VOUT

450mA

LOAD

225mA

INCLUDES 200µF ON OUTPUT BUS

TIME, t (500µsec/DIV)

TURN ON RESPONSE

OUTPUT LOAD = 450mA

12V

VOUT

VIN

28V

0V

INCLUDES 200µF

ON OUTPUT

TIME, t (10msec/DIV)

3

Rev. A 3/01

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