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參數資料
| 型號： | PSS369-9PB1 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE S01, MODULE |
| 文件頁數： | 15/18頁 |
| 文件大?。?/td> | 366K |
| 代理商： | PSS369-9PB1 |
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
REV. FEB. 25 2004
Page 6 of 18
Table 3d: OVtpVt data
Output
PSK 3612
PSK 4812
Characteristics
Conditions
min
typ
max
min
typ
max
Unit
Vo
Output voltage
Vi nom, Io nom
35.78
36.22
47.71
48.29
V
Io
Output current 1
Vi min - Vi max
0
12.0
0
12.0
A
IoL
Output current limitation
TC min - TC max
12.0
15.0
12.0
15.0
response
vo
Output
Switching freq.
Vi nom, Io nom
35
60
35
60
mVpp
voltage
Total
IEC/EN 61204 2
39
64
39
64
noise
BW = 20 MHz
DVo U
Static line regulation
Vi min - Vi max, Io nom
120
250
150
350
mV
DVo l
Static load regulation
Vi nom, Io = 0 - Io nom
60
120
70
150
vo d
Dynamic
Voltage deviat.
Vi nom
200
td
load
Recovery time
Io nom
1/3 Io nom
70
s
regulation
IEC/EN 61204 2
aUo
Temperature coefficient
Vi min - Vi max
±8
±10
mV/K
DVo/DTC (TC min - TC max)
Io = 0 - Io nom
±0.02
%/K
1 See also: Thermal Consideration.
2 See: Technical Information: MeasVring and Testing.
3 Output set to 15 V at R control input, see: Auxiliary Functions.
Overtemperature Protection
The unit is self-protecting by an internal temperature moni-
tor, which inhibits the output above
TC max. The output is au-
tomatically enabled again after temperature has dropped
below
TC max.
Output Protection
A voltage suppressor diode which in worst case conditions
fails into a short circuit, protects the output against an inter-
nally generated overvoltage. Such an overvoltage could oc-
cur due to a failure of either the control circuit or the switch-
ing transistor. The output protection is not designed to with-
stand externally applied overvoltages. The user should en-
sure that systems with Power-One power supplies, in the
event of a failure, do not result in an unsafe condition (fail-
safe).
Fig. 2
Dynamic load regulation.
Io/Io nom
1
Vod
t d
DVo I
t
Vo
0
t
≥10 s
05010
Thermal Considerations
When a switching regulator is located in free, quasi-station-
ary air (convection cooling) at a temperature
TA = 71°C and
is operated at its nominal output current
Io nom, the case
temperature
TC will be about 95°C after the warm-up
phase, measured at the:
MeasVring point of case tempera-
tVre TC (see: Mechanical Data).
Under practical operating conditions, the ambient tem-
perature
TA may exceed 71°C, provided additional meas-
ures (heat sink, fan, etc.) are taken to ensure that the case
temperature
TC does not exceed its maximum value of
95 °C.
Example: Sufficient forced cooling allows
TA max = 85°C. A
simple check of the case temperature
TC (TC
≤95°C) at full
load ensures correct operation of the system.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
50
60
70
80
90
100
Io/Io nom
TA [C]
0.9
1.0
Forced cooling
05031
TA min
TC max
Convection cooling
Fig. 3
Output current derating versus temperature.
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