IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Electrical Input Data
General conditions:
TA = 25 °C, unless specified
Pins 8 (shutdown or i), 6 (W), 5 (Trim or Trim1), and 1 (PUL) left open-circuit (not connected), unless specified.
Table 2: Input Data
Input
20IMX35
40IMX35
Unit
Characteristics
Conditions
min
9 2
typ
max
36
min
18 2
typ
max
75
Vi
Input voltage range 1
TA min to TA max
Io = 0 to Io nom
VDC
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
Converter
Switch on
S¯¯D high
Worst case condition at
Vi min and full load
0.25
0.25 0.5
s
start-up time 2
0.1
3
trise
Rise time3
Vi nom resist load
Io nom capac. load
Io = 0, Vi min to Vi max
Io = 0 to Io nom
3
6
ms
12
70
30
8
6
12
50
30
9
Ii o
Iirr
No load input current
Reflected ripple current
Inrush peak current 4
Input capacitance
mA
mApp
A
Iinr p
Ci
Vi = Vi nom
for surge calculation
Converter disabled
Converter operating
2
1.3
µF
––
VSD
Shut down voltage
–10 to 0.7
–10 to 0.7
V
open circuit or 2 to 20
open circuit or 2 to 20
––
RSD
Shutdown input resistance
approx. 10
12
approx. 10
6
k Ω
mA
kHz
––
ISD
Inputcurrentduringshutdown Vi min to Vi max
Switching frequency Vi min to Vi max, Io = 0 to Io nom
fs
220
240
220
240
Input
70IMX35
110IMX35
Unit
Characteristics
Conditions
min
40 2
typ
max
121
min
602
typ
110
0.4
max
1505
Vi
Input voltage range 1
TA min to TA max
Io = 0 to Io nom
VDC
Vi nom
Vi sur
tstart-up
Nominal input voltage
70
Repetitive surge voltage
Abs. max input (3 s)
150
0.5
0.1
170
0.7
0.1
Converter
Switch on
S¯¯D high
Worst case condition at
Vi min and full load
0.25
s
start-up time 2
trise
Rise time3
Vi nom resist load
Io nom capac. load
Io = 0, Vi min to Vi max
Io = 0 to Io nom
3
6
3
6
ms
12
30
30
7
12
20
30
7
Ii o
Iirr
No load input current
Reflected ripple current
Inrush peak current 4
Input capacitance
mA
mApp
A
Iinr p
Ci
Vi = Vi nom
for surge calculation
Converter disabled
Converter operating
0.5
0.5
µF
––
VSD
Shut down voltage
–10 to 0.7
–10 to 0.7
V
open circuit or 2 to 20
open circuit or 2 to 20
––
RSD
Shutdown input resistance
approx. 10
5
approx. 10
5
kΩ
mA
kHz
––
I SD
Inputcurrentduringshutdown Vi min to Vi max
Switching frequency Vi min to Vi max, Io = 0 to Io nom
fs
220
240
220 240
3
4
5
1
2
Measured with resistive and max. admissible capacitive load.
Source impedance according to ETS 300132-2, version 4.3.
154 V during 2 s
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.
Input undervoltage lockout at typ. 85% of Vi min
.
BCD20009-G Rev AC, 06-May-2013
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