IMS30 데이터 시트보기 (PDF) - Power-One Inc.
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IMS30 Datasheet PDF : 11 Pages
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Electrical Input Data
General conditions:
– TA = 25 C, unless TC is specified.
– Shut down pin left open circuit (not connected).
– Trim input not connected.
Table 2: Input Data
Input
48 IMS
Characteristics
Conditions
min typ max
Unit
Ui
Ui nom
Ui sur
Input voltage range 1
Nominal input voltage
Repetitive input surge
voltage
TC min...TC max
Io = 0...Io nom
max 3 s
32
75
V DC
48
100
t start up
Converter Switch on
start-up time SD high
Ui min, Io = Io nom 2
0.25 0.5
s
0.1
t rise
Rise time
Ii NL
No load input current
Io = 0, Ui min...Ui max
SD high
5
ms
30
40
mA
Ci
Input capacitance
USD
Shut down voltage
for surge calculation
Unit disabled
1.5
–10
0.7
uF
V DC
Unit operating
1.5
5
ISD
Input current of SD input
Iinr p
Inrush peak current 4
Ui = Ui nom
fs
Switching frequency
Ui min, Io nom
I i rr
Reflected
ripple current
Io = 0...Io nom
1
2
1.5
approx. 250
60
mA
A
kHz
mApp
ui RFI Input RFI level conducted EN 55022 3
B
1 Ui min will not be as stated if Uo is increased above Uo nom by use of the Trim input. If the output voltage is set to a higher value,
Ui min will be proportionally increased.
2 Measured with a resistive and the max. admissible capacitive load.
3 Measured with a lead length of 0.1 m, leads twisted.
4 Source impedance according to prETS 300132-2, version 4.3.
Inrush Current
The inrush current has been kept as low as possible by
choosing a very small input capacitance.
A series resistor may be installed in the input line to further
limit this current.
I [A]
1.4
04058
1.2
1
0.8
Input Undervoltage Lock-out
The IMS30 converters are fitted with a defined input under-
voltage lock-out:
48 IMS 30 turn off
turn on
(approx. values)
31.5 V
32 V
Uo
Uo nom
t rise
04008
0.6
0.4
0.2
0
t [ms]
–2 –1 0 1 2 3 4 5 6 7 8
Fig. 2
Typical inrush current at Ui nom, Po nom versus time
(48 IMS30-0503-9G). Source impedance according to
prETS 300132-2, version 4.3 at Ui nom.
t
tstart up
Fig. 3
Converter start-up and rise time (applying Ui nom).
3/11
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