021 ASM

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Revision: 16-Sep-16

7

Document Number: 28325

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Fig. 6 - Multiplier of useful life as a function of ambient temperature and ripple current load

Table 5

MULTIPLIER OF RIPPLE CURRENT (IR) AS A FUNCTION OF FREQUENCY

UR

FREQUENCY (Hz)

50

100

300

1000

3000

 10 000

IR MULTIPLIER

6.3

0.95

1.00

1.07

1.12

1.15

1.20

10

0.95

1.00

1.07

1.12

1.15

1.20

16

0.95

1.00

1.07

1.12

1.15

1.20

25

0.90

1.00

1.12

1.20

1.25

1.30

40

0.90

1.00

1.12

1.20

1.25

1.30

63

0.85

1.00

1.20

1.30

1.35

1.40

100

0.85

1.00

1.20

1.30

1.35

1.40

3.3

3.2

3.0

2.8

2.6

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.5

0.0

3.1

40

50

60

70

80

90

100

CCC205

Lifetime multiplier

(1)

I

A

I

R

I

A = Actual ripple current at 100 Hz

I

R = Rated ripple current at 100 Hz, 85 °C

(1) Useful life at 85 °C and I

R applied:

Case Ø D x L = 4.5 mm x 10 mm to 10 mm x 25 mm: 2500 h

Case Ø D x L = 10 mm x 30 mm to 21 mm x 38 mm: 8000 h

T

amb (°C)