Datasheet

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Revision: 05-Jun-2020
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Document Number: 28460
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RIPPLE CURRENT AND USEFUL LIFE
Table 3
Note
• Multiplier of useful life code: MGA453
Fig. 6 - Multiplier of useful life as a function of ambient temperature and ripple current load
Table 4
ENDURANCE TEST DURATION AND USEFUL LIFE
ENDURANCE
AT 85 °C
(h)
USEFUL LIFE
AT 85 °C
(h)
3000 5000
MULTIPLIER OF RIPPLE CURRENT (I
R
) AS A FUNCTION OF FREQUENCY
FREQUENCY (Hz)
50 100 120 200 1000  10 000
I
R
MULTIPLIER
0.80 1.00 1.05 1.20 1.30 1.40
1.3
1.2
1.1
1.0
0.8
0.5
0.0
40 50 60 70 80 90
I
A
I
R
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
(1)
45
60
30
20
10
8
5
4
3
2
2.5
1.5
1
1.2
15
MGA453
Life multiplier
T
amb
(°C)
I
A
= Actual ripple current at 100 Hz
I
R
= Rated ripple current at 100 Hz and 85 °C
(1)
Useful life at 85 °C and I
R
applied: 5000 h