IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Electrical Input Data
Product Specifications
Aug 2002
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
9 2
typ
max
36
min
18 2
typ
max
75
Unit
Vi
Input voltage range 1
TAmin...TAmax
Io = 0...Io nom
V DC
Vi nom
Vi sur
tstart up
Nominal input voltage
20
40
Repetitive surge voltage
Abs. max input (3 s)
40
0.5
0.1
100
0.5
0.1
Converter
start-up time 2
Switch on
SD high
Worst case condition at
Ui min and full load
0.25
0.25
s
trise
Rise time 3
Ui nom resist load
Io nom capac. load
Io = 0, Ui min...Ui max
Io = 0...Io nom
3
6
3
6
ms
mA
12
70
30
8
12
50
30
9
Ii o
No load input current
Reflected ripple current
Inrush peak current 4
Input capacitance
Iirr
Iinr p
Ci
Ui = Ui nom
A
for surge calculation
Unit shut down
Unit operating
2
1.3
µF
USD
Shut down voltage
–10...0.7
–10...0.7
V DC
open circuit or 2...20
open circuit or 2...20
RSD
ISD
Shut down input resistance For current calculations
approx. 10
12
approx. 10
6
kΩ
Input current if unit
shut down
Ui min...Ui max
mA
fs
Switching frequency
Ui min...Ui max, Io = 0...Io nom
approx. 220
B 6
approx. 220
B6
kHz
ui RFI
Input RFI level, conducted
EN 55022 5
Input
70 IMX
110 IMX
Characteristics
Conditions
min
40 2
typ
max
121
min
602
typ
110
0.25
max
150
Unit
Vi
Input voltage range 1
TAmin...TAmax
Io = 0...Io nom
V DC
Vi nom
Vi sur
tstart up
Nominal input voltage
70
Repetitive surge voltage
Abs. max input (3 s)
150
0.5
0.1
170
0.5
0.1
Converter
start-up time 2
Switch on
SD high
Worst case condition at
Ui min and full load
0.25
s
trise
Rise time 3
Ui nom resist load
Io nom capac. load
Io = 0, Ui min...Ui max
Io = 0...Io nom
3
6
3
6
ms
mA
12
30
30
7
12
20
30
7
Ii o
No load input current
Reflected ripple current
Inrush peak current 4
Input capacitance
Iirr
Iinr p
Ci
Ui = Ui nom
A
for surge calculation
Unit shut down
Unit operating
0.5
0.5
µF
USD
Shut down voltage
–10...0.7
–10...0.7
V DC
open circuit or 2...20
approx. 10
3.5
open circuit or 2...20
RSD
ISD
Shut down input resistance For current calculations
approx. 10
4
kΩ
Input current if unit
shut down
Ui min...Ui max
mA
fs
Switching frequency
Ui min...Ui max, Io = 0...Io nom
approx. 220
B 6
approx. 220
B 6
kHz
ui RFI
Input RFI level, conducted
EN 55022 5
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,
i min will be proportionately increased.
2 Input undervoltage lock-out at typ. 85% of Ui min
V
.
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.
AUG 13, 2002
Rev 1.0
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