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IMS30 Datasheet(PDF) 3 Page - Power-One

Part No. IMS30
Description  Dual outputs 5V & 3.3V ; 3.3V & 1.8V
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Maker  POWER-ONE [Power-One]
Homepage  http://www.power-one.com
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IMS30 Datasheet(HTML) 3 Page - Power-One

   
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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
Input voltage range 1
TC min...TC max
75
V DC
Ui nom
Nominal input voltage
Io = 0...Io nom
48
Ui sur
Repetitive input surge
max 3 s
100
voltage
tstart up
Converter
Switch on
Ui min, Io = Io nom 2
0.25
0.5
s
start-up time
SD high
0.1
trise
Rise time
5
ms
Ii NL
No load input current
Io = 0, Ui min...Ui max
30
40
mA
SD high
C i
Input capacitance
for surge calculation
1.5
uF
USD
Shut down voltage
Unit disabled
–10
0.7
V DC
Unit operating
1.5
5
ISD
Input current of SD input
1
2
mA
Iinr p
Inrush peak current 4
Ui = Ui nom
1.5
A
fs
Switching frequency
Ui min, Io nom
approx. 250
kHz
Ii rr
Reflected
Io = 0...Io nom
60
mApp
ripple current
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.
Uo nom
Uo
tstart up
trise
t
04008
Fig. 3
Converter start-up and rise time (applying Ui nom).
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.
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.
Input Undervoltage Lock-out
The IMS30 converters are fitted with a defined input under-
voltage lock-out:
48 IMS 30
turn off
31.5 V
turn on
32 V
(approx. values)
–10
1
23
4
5
6
7
8
t [ms]
–2
0
0.2
0.4
0.6
0.8
1
1.2
1.4
I [A]
04058
3/11
32


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