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參數(shù)資料
| 型號： | LK2540-7ERD0B1 |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE K02, MODULE |
| 文件頁數(shù)： | 18/27頁 |
| 文件大?。?/td> | 640K |
| 代理商： | LK2540-7ERD0B1 |
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K-Family
DC-DC Converters >100 W
Rugged Environment
8 - 26
Edition 2/96 - Melcher AG
MELCHER
The Power Partners.
8.1
Immunity to Environmental Conditions
Table 19: Mechanical stress
Test
Standard
Test Parameters
Status
Ca
Damp heat
DIN 40046, part 5
Temperature:
40 ±2
°C
Unit not
steady state
IEC 68-2-3
Relative humidity:
93 +2 /-3 %
operating
MIL-STD 810D section 507.2
Time:
56 days
Ea
Shock
DIN 40046, part 7
Acceleration amplitude:
100 gn = 981 m/s2
Unit
(half-sinusoidal)
IEC 68-2-27
Bump duration:
6 ms
operating
MIL-STD 810D section 516.3
Number of bumps:
18 (3 each direction, 3 axes)
Eb
Continuous shock DIN 40046, part 26
Acceleration amplitude:
40 g n = 392 m/s2
Unit
(half-sinusoidal)
IEC 68-2-29
Bump duration:
6 ms
operating
MIL-STD 810D section 516.3
Number of bumps:
6000 (1000 each direction, 3 axes)
Fc
Vibration
DIN 40046, part 8
Frequency (1 Oct/ min):
10...2000 Hz
Unit
(sinusoidal)
IEC 68-2-6
Maximum vibration amplitude: 0.35 mm (10...60 Hz)
operating
MIL-STD 810D section 514.3
Acceleration amplitude:
5 g n = 49 m/s2
Test duration:
7.5 h (2.5 h each axis)
Fda Random vibration IEC 68-2-34
Frequency band:
20...500 Hz
Unit not
wide band
DIN 40046, part 22
Total acceleration amplitude: 4.9 grms
operating
reproducibility
Acceleration spectral density: 0.05 g2/Hz
high
Test duration:
3 h (1h each axis)
Kb
Salt mist
DIN 40046 part 105
Concentration:
5% (30
°C)
Unit not
cyclic
IEC 68-2-52
Duration:
2 h per cycle
operating
(sodium chloride
Storage:
40
°C, 93% rel. humidity
NaCl solution)
Storage duration:
22 h per cycle
Number of cycles:
3
Table 20. Temperature specifications
Characteristic
min
max
Unit
TA
Standard operational ambient temperature range -7, (MIL-STD-810D sections 501.2 and 502.2)
–25
71
°C
TA
Extended operational ambient temperature range -9, (MIL-STD-810D sections 501.2 and 502.2)
–40
71
TC
Standard operational case temperature range -7, overtemp. lock-out (PTC) at TC > 95
°C
–25
95
TC
Extended operational case temperature range -9, overtemp. lock-out (PTC) at TC > 95
°C
–40
95
TS
Storage temperature range -7, (MIL-STD-810D sections 501.2 and 502.2)
–40
100
TS
Extended storage temperature range -9, (MIL-STD-810D sections 501.2 and 502.2)
–55
100
Table 21: MTBF
Values at Specified
Type
Ground Benign
Ground Fixed
Ground Mobile
Unit
Case Temperature
40
°C40°C70°C50°C
MIL-HDBK 217F, (CK 1301-7R)
AK...LK
500'000
150'000
80'000
50'000
h
Device hours 1
500'000
1 Statistical value, based on an average of 4300 working hours per years and in general field use, over 3 years.
Thermal Considerations
Operation at ambient temperatures of 71...85
°C with con-
vection cooling will limit the maximum output power to 40 %
(approx.) of the nominal value. Forced cooling (additional
heat sink, fan, etc.) allows operation of the power supply at
nominal output power up to an ambient temperature of
85
°C, as long as the maximum case temperature T
C max
(95
°C) is not exceeded. For the case temperature measur-
ing point see Mechanical Data.
It is recommended that continuous operation under simul-
taneous extreme worst case conditions of the following
three parameters be avoided: Minimum input voltage,
maximum output power and maximum temperature.
Fig. 31
Output power derating versus TA
0
10
20
30
40
50
60
70
80
–25
50
60
70
80
90
100
Po [%]
TA [°C]
90
100
110
Po max (forced cooling)
Po max
(convection cooling)
TC max
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