AUG 13, 2002
Rev 1.0
Page 4 of 15
www.power-one.com
IMX35 Series: 35W DC-DC Converters
Product Specifications
9-36V, 18-75V, 40-121V & 60-150V Inputs
Aug 2002
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Electrical Input Data
General conditions:
TA = 25°C, unless TC is specified; Shut down pin left open circuit (not connected);Trim not connected.
Table 2: Input Data
Input
20 IMX
40 IMX
Characteristics
Conditions
min
typ
max
min
typ
max
Unit
Vi
Input voltage range 1
TAmin...TA max
9 2
36
18 2
75
V DC
Vi nom
Nominal input voltage
Io = 0...Io nom
20
40
Vi sur
Repetitive surge voltage
Abs. max input (3 s)
40
100
tstart up
Converter
Switch on
Worst case condition at
0.25
0.5
0.25
0.5
s
start-up time 2
SD high
Ui min and full load
0.1
trise
Rise time 3
Ui nom resist load
3
ms
Io nom capac. load
6
12
6
12
Ii o
No load input current
Io = 0, Ui min...Ui max
70
50
mA
Iirr
Reflected ripple current
Io = 0...Io nom
30
Iinr p
Inrush peak current 4
Ui = Ui nom
89
A
C i
Input capacitance
for surge calculation
2
1.3
F
USD
Shut down voltage
Unit shut down
–10...0.7
V DC
Unit operating
open circuit or 2...20
RSD
Shut down input resistance
For current calculations
approx. 10
k
ISD
Input current if unit
Ui min...Ui max
12
6
mA
shut down
fs
Switching frequency
Ui min...Ui max, Io = 0...Io nom
approx. 220
kHz
ui RFI
Input RFI level, conducted
EN 55022 5
B 6
B6
Input
70 IMX
110 IMX
Characteristics
Conditions
min
typ
max
min
typ
max
Unit
Vi
Input voltage range 1
TAmin...TA max
40 2
121
602
150
V DC
Vi nom
Nominal input voltage
Io = 0...Io nom
70
110
Vi sur
Repetitive surge voltage
Abs. max input (3 s)
150
170
tstart up
Converter
Switch on
Worst case condition at
0.25
0.5
0.25
0.5
s
start-up time 2
SD high
Ui min and full load
0.1
trise
Rise time 3
Ui nom resist load
3
ms
Io nom capac. load
6
12
6
12
Ii o
No load input current
Io = 0, Ui min...Ui max
30
20
mA
Iirr
Reflected ripple current
Io = 0...Io nom
30
Iinr p
Inrush peak current 4
Ui = Ui nom
77
A
C i
Input capacitance
for surge calculation
0.5
F
USD
Shut down voltage
Unit shut down
–10...0.7
V DC
Unit operating
open circuit or 2...20
RSD
Shut down input resistance
For current calculations
approx. 10
k
ISD
Input current if unit
Ui min...Ui max
3.5
4
mA
shut down
fs
Switching frequency
Ui min...Ui max, Io = 0...Io nom
approx. 220
kHz
ui RFI
Input RFI level, conducted
EN 55022 5
B 6
1 Vi min will not be as stated if Vo is increased above Vo nom by use of Trim input. If the output voltage is set to a higher value,
Vi min will be proportionately increased.
2 Input undervoltage lock-out at typ. 85% of Ui min.
3 Measured with resistive and max. admissible capacitive load.
4 Source impedance according to ETS 300132-2, version 4.3.
5 Measured with a lead length of 0.1 m, leads twisted.
6 External capacitor required.