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参数资料
| 型号： | LM3020-7ERD0AHF |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 3-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | METAL, CASE M02, MODULE |
| 文件页数： | 20/24页 |
| 文件大小： | 982K |
| 代理商： | LM3020-7ERD0AHF |
Cassette Style
AC-DC Converters
M Series
Edition 5/5.2000
5/24
Electrical Input Data
General conditions:
–
TA = 25
°C, unless T
C is specified.
– Connector pins 2 and 23 interconnected, with option P:
Uo = Uo nom, R input not connected.
Table 3: Input data
Input
LM/LMZ
Characteristics
Conditions
min
typ
max
Unit
U
i
Operating Input voltage
Io = 0…Io nom
85
264
V AC 1
TC min…TC max
88
372 7
V DC 1
Ui nom Nominal input voltage
310 2
I
i
DC input current
U
i = 310 V DC, Io nom
3
0.20
A DC
i
AC input current
U
i = 115 V AC, Io nom
3
0.77
A
rms
U
i = 230 V AC, Io nom
3
0.43
Pi 0
No-load input power:
Ui nom
Single output
I
o1,2,3 = 0
1
1.5
W
Double output
7
9
Triple output
6
9
P
i inh
Idle input power
inhibit mode
2
I
inr p
4
Peak inrush current 8
U
i = Ui max
60 6
A
t
inr r
Rise time 8
R
S = 0
5
300
s
tinr h
Time to half value 8
TC = 25°C
900
R
i
Input resistance 8
T
C = 25 °C
6200 6
m
C
i
Input capacitance
140
270
F
U
i abs
Input voltage limits
–400
400
V DC
without any damage
0
284
V AC
1 In AC powered mode:
LM types: 47...440 Hz;
LMZ types: 47...65 Hz.
2 310 V DC corresponds with
220 V AC.
3 With multiple output modules,
the same condition for each
output applies.
4 Iinr p = Ui/(Rs + Ri).
5 RS = source resistance.
6 Value for initial switch-on cy-
cle.
7 With LMZ converters, the
maximum nominal DC output
voltage from the front end is
250 V according to IEC/EN
60950.
8 Not valid for units with option
E. See description of options.
Input fuse
A fuse holder containing a slow-blow type fuse (Dimension:
5
× 20 mm) is mounted in the converter's back plate. The
fuse protects the module against severe defects. It may not
fully protect the module at input voltages exceeding
200 V DC. In applications where the converters operate at
DC source voltages above 200 V DC, an external fuse or a
circuit breaker at system level should be installed.
For applications where the fuse should be inaccessible: see
Option F.
Table 4: Fuse type (slow-blow)
Series
Schurter type
Part number
LM/LMZ 1000...3000
SPT 2.5 A
250 V
0001.2508
U
i DC
____
U
i min DC
2
345
6
1
0.10
1.00
I
i [A]
04046
Fig. 3
Typical inrush current at initial switch-on cycle and at
Ui max (DC) versus time
50
40
30
20
10
0
2.0
2.5
3.0
3.5
4.0
1.5
1.0
0.5
I i [A]
t [ms]
04053
Fig. 2
Typical input current versus relative input voltage at
nominal output load
Input Under-/Overvoltage Lock-out
If the input voltage remains below 0.8
Ui min or exceeds
1.1
Ui max (approx. values), an internally generated inhibit
signal disables the output(s). When checking this function
the absolute maximum input voltage rating
Ui abs must be
carefully considered (see table:
Input Data). Between Ui min
and the undervoltage lock-out level the output voltage may
be below the value defined in table:
Output data (see: Tech-
nical Information: Measuring and Testing).
Inrush Current
The modules incorporate an NTC resistor in the input cir-
cuitry which (during the initial switch-on cycle) limits the
peak inrush current to avoid damage to connectors and
switching devices. Subsequent switch-on cycles within a
short interval will cause an increase of the peak inrush cur-
rent due to the warming up of the NTC resistor. Refer also
to:
Option E description.
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