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| 型號(hào)： | PSC366-7LIRPCD |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁(yè)數(shù)： | 6/11頁(yè) |
| 文件大?。?/td> | 238K |
| 代理商： | PSC366-7LIRPCD |
Rugged Environment
Switching Regulators, PCB & Chassis
PSC-Family
Edition 2/96 - Melcher AG
4 - 25
MELCHER
The Power Partners.
4.1
R External Output Voltage Adjustment
Note: With open R input,
Uo = Uo nom.
R-input and option P cannot be supported simultaneously.
The output voltage
Uo can either be adjusted with an exter-
nal resistor (
R 1 or R 2) or with an external voltage (Uex). The
adjustment range is 0...1.08 of
Uo nom. The minimal differen-
tial voltage
Uio min between input and output should be
maintained (see data). Min. input = Undervoltage cut-out.
Fig. 5
Voltage adjustment with Uex [V] between R and G (Go-):
Uo nom
a)
Uo
≈ Uex ––––––
(
Uref = 2.5 V
±2%)
Uref
Caution: To prevent damage
Uex should not exceed
20 V, nor be negative.
All formulae give approximate values only.
Vo +
R
+
4000
G
U ref
Uex
–
+
Go –
Fig. 6
Voltage adjustment with external resistor R1 or R2 []
b)
Uo = 0...100 % Uo nom, using R1 between R and G (Go-):
R1
4000
Uo
≈ Uo nom ––––––––
R1
≈ –––-––––
R1 + 4000
Uo nom - Uo
c)
Uo = Uo nom...Uo max, using R2 between R and Vo+:
Uo max = Uo nom + 8%
R2
U ref
Uo
≈ Uref ––––––––––––––––––
k = ––––––
k (
R2 + 4000) – 4000
Uo nom
Uo (1 – k)
R2 ≈ 4000 –––––––––
(
Uref = 2.5 V ±2%)
k
Uo – Uref
Vo +
R
–
+
G
4000
Uref
R1
R2
Go –
Immunity to Environmental Conditions
Table 4: Mechanical stress
Test Method
Standard
Test Conditions
Status
Ca
Damp heat
DIN 40046 part
Temperature:
40 ±2
°C
Unit not
steady state
IEC 68-2-3
Relative humidity:
93 +2/-3 %
operating
MIL-STD-810D section 507.2
Duration:
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)
Eb
Continuous shock
DIN 40046 part 26
Acceleration amplitude:
40 gn = 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)
Fc
Vibration
DIN 40046 part 8
Frequency (1 Oct/min):
10...2000 Hz
Unit
(sinusoidal)
IEC 68-2-6
Max. vibration amplitude:
0.35 mm (10...60 Hz)
operating
MIL-STD-810D section 514.3
Acceleration amplitude:
5 gn = 49 m/s2 (60...2000 Hz)
Test duration:
7.5 h (2.5 h each axis)
Fda
Random vibration
DIN 40046 part 23
Acceleration spectral density: 0.05 g2/Hz
Unit not
wide band
IEC 68-2-35
Frequency band:
20...500 Hz
operating
reproducibility high
Acceleration magnitude:
4.9 grms
Test duration:
3 h (1 h 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 5: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
Standard -7
Option -9
Characteristics
Conditions
min
max
min
max
Unit
TA
Ambient temperature 1
Ui min...U i max
–25
71
–40
71
°C
TC
Case temperature
I o = 0...Io nom
–25
95
–40
95
TS
Storage temperature 1
Not operational
–40
100
–55
100
1 MIL-STD-810D section 501.2 and 502.2
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