20IMX35-D05D15-9 [BEL]
4-OUTPUT 35W DC-DC REG PWR SUPPLY MODULE;
| 型号： | 20IMX35-D05D15-9 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 4-OUTPUT 35W DC-DC REG PWR SUPPLY MODULE 局域网 输出元件 |
| 文件： | 总15页 (文件大小：191K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Wide input voltage ranges up to 150 V DC
2...4 outputs up to 60 V DC
1500 V DC I/O electric strength test voltage
• Extremely wide input voltage ranges
• Electrical isolation I/O, also between outputs
• Emissions below EN 55022, level B
• Immunity to IEC/EN 61000-4-2,-3,-4,-5 and -6
• Programmable input undervoltage lock-out
• Shut down/inhibit input
8.9
0.35"
47.8
1.88"
72.8
2.87"
• Output voltages adjustable with flexible load
distribution
• Frequency synchronisation
• Outputs no-load, overload and short-circuit proof
• Operating ambient temperature from –40...110°C
• Thermal protection
• 3" x 2.5" case with 10.5 mm profile or 8.9 mm open
frame
• Basic insulation
• Flexible output possibilities between 3.3 V & 60 V
10.5
0.41"
63.5
2.5"
Safety according to IEC/EN 60950, UL 1950
76.2
3"
LGA
Approvals pending
Summary
The circuit comprises of two planar magnetics devices and
all components are automatically assembled and solidly
soldered onto a single PCB without any wire connection.
Magnetic feedback ensures maximum reliability and
repeatability in the control loop over all operating condi-
tions. Careful considerations of possible thermal stresses
ensure the absence of hot spots providing long life in envi-
ronments where temperature cycles are a reality. The ther-
mal design without using any potting material allows opera-
tion at full load up to an ambient temperature of 71°C in
free air, operation to 110°C with airflow. For extremely high
vibration environments the case has holes for screw
mounting. Inhibit or open frame mounting provide a high
level of application specific engineering and design-in flex-
ibility.
The IMX 35 series of board mountable 35 Watt DC-DC con-
verters has been designed according to industry require-
ments and standards. The converters are particularly suit-
able for use in mobile or stationary applications in trans-
port, railways, industry, or telecommunication where vari-
able input voltages or high transient voltages are prevalent.
Covering a total input voltage range from 9 V up to 150 V
with 4 different types. The units are available with up to
quadruple outputs (electrically isolated) from 3.3 V up to
60V externally adjustable and with flexible load distribution.
A shut down input allows remote converter on/off. Features
include consistently high efficiency over the entire input
voltage range, high reliability and excellent dynamic re-
sponse to load and line changes.
The converters are designed and built according to the in-
ternational safety standards IEC/EN 60950, UL 1950, CAN/
CSA C22.2 No.950-95. LGA, UL and cUL approvals are in
progress. The IMX 35 types provide basic insulation.
Table of Contents
Page
Page
Auxiliary Functions ........................................................... 9
Electromagnetic Compatibility (EMC) ............................ 11
Immunity to Environmental Conditions .......................... 12
Mechanical Data ............................................................ 13
Safety and Installation Instructions ................................ 14
Description of Option ..................................................... 15
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description ..................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 1 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Type Survey and Key Data
Table 1: Type survey
Output 1
Output 2
Output 3
Output 4
Input voltage Eff.
Type
Trim1 Opt.2
Vo nom Io nom Vo nom
Io nom Vo nom Io nom Vo nom Io nom
Vi min...Vi max
ηtyp
designation
[V DC]
[A]
[V DC]
[A]
[V DC]
[A]
[V DC]
[A]
[V DC]
[%]
3.3
3.3
3.3
4.15
4.15
4.15
5
12
15
1.35
0.7
0.6
5
12
15
1.35
0.7
0.6
-
-
-
-
-
-
18...75
18...75
18...75
81
83
84
40 IMX 35-03D05-9
40 IMX 35-03D12-9 second.
40 IMX 35-03D15-9
-8
i
Z
5.1
5.1
5.1
3.25
3.25
3.25
5
12
15
1.4
0.7
0.6
5
12
15
1.4
0.7
0.6
-
-
-
-
-
-
18...75
18...75
18...75
82
83
84
40 IMX 35-05D05-9
40 IMX 35-05D12-9 second.
40 IMX 35-05D15-9
-8
i
Z
5
5
5
5
1.35
1.4
1.4
5
5
5
5
1.35
1.4
1.4
5
5
5
5
1.35
1.4
1.4
5
5
5
5
1.35
1.4
1.4
9...36
18...75
40...121
60...150
86
87
86
20 IMX 35 D05D05-9
40 IMX 35 D05D05-9 primary
70 IMX 35 D05D05-8
-8
i,Z
i
1.4
1.4
1.4
1.4
86 110 IMX 35 D05D05-8
Z
12
12
12
12
0.65
0.7
0.7
0.7
12
12
12
12
0.65
0.7
0.7
0.7
12
12
12
12
0.65
0.7
0.7
0.7
12
12
12
12
0.65
0.7
0.7
0.7
9...36
18...75
40...121
60...150
86
88
88
20 IMX 35 D12D12-9
40 IMX 35 D12D12-9 primary
70 IMX 35 D12D12-8
-8
i,Z
i
88 110 IMX 35 D12D12-8
Z
15
15
15
15
0.55
0.6
0.6
0.6
15
15
15
15
0.55
0.6
0.6
0.6
15
15
15
15
0.55
0.6
0.6
0.6
15
15
15
15
0.55
0.6
0.6
0.6
9...36
18...75
40...121
60...150
88
89
88
20 IMX 35 D15D15-9
40 IMX 35 D15D15-9 primary
70 IMX 35 D15D15-8
-8
i,Z
i
88 110 IMX 35 D15D15-8
Z
5
5
5
5
1.35
1.4
1.4
12
12
12
12
0.65
0.7
0.7
12
12
12
12
0.65
0.7
0.7
5
5
5
5
1.35
1.4
1.4
9...36
18...75
40...121
60...150
88
89
88
20 IMX 35 D05D12-9
40 IMX 35 D05D12-9 primary
70 IMX 35 D05D12-8
-8
i,Z
i
1.4
0.7
0.7
1.4
88 110 IMX 35 D05D12-8
Z
5
5
5
5
1.35
1.4
1.4
15
15
15
15
0.55
0.6
0.6
15
15
15
15
0.55
0.6
0.6
5
5
5
5
1.35
1.4
1.4
9...36
18...75
40...121
60...150
88
89
88
20 IMX 35 D05D15-9
40 IMX 35 D05D15-9 primary
70 IMX 35 D05D15-8
-8
i,Z
i
1.4
0.6
0.6
1.4
88 110 IMX 35 D05D15-8
Z
1 The Trim input (pin 5) on the primary side influences all outputs simultaneously on equal voltage types (eg D12D12) for unequal voltages (eg D05D12) it
only influences the power train Vo1/Vo4, while Trim1 (pin 18) on the secondary side influences the first output (Vo1) only.
2 For minimum quantity contact Power-One, not all options immediately available.
TYPE KEY
20 IMX 35 D05 D05 -9 i Z
Input voltage range Ui
9...36 V DC ........................................... 20
18...75 V DC ........................................... 40
40..121V DC ........................................... 70
60..150V DC ......................................... 110
Series ...................................................................... IMX 35
Output 1 of triple types ...........................................-03, -05
Output 1 & 4 of quad types1 ................................. D05, D12, D15
Output 2 & 3 of quad types1 ................................. D05, D12, D15
Operating ambient temperature range TA
–40...71°C................................................... -9
–40...85°C (110°C ) .................................... -8
Options:
Inhibit ........................................................... -i
Open frame.................................................. Z
1 Dual output models can be achieved by paralleling outputs
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 2 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Functional Description
The quadruple output type consists of 4 outputs and two
power trains. Vo1, Vo4 derive from the first power train and
Vo2, Vo3 from the second one (thus each pair of outputs is
independent from the other one). Voltage regulation for
each pair of outputs is achieved with passive transformer
feedback from the main transformer of each power train.
Each pair of outputs are restricted to being of the same out-
put voltage type (i.e. D05, D12, etc.). If both power trains
have the same output voltage, all outputs may be adjusted
by means of the Trim input. (In case of different output volt-
ages, the Trim1 input influences only Vo1 and Vo4. See:
Block diagram, quadruple output types.)
The IMX35 family of DC-DC converters consists of two
feedback controlled interleaved switching flyback power
trains using current mode PWM (pulse width modulation).
Functionally the converters are of two main types.
The triple output types consist of 3 outputs Vo1, Vo2, Vo3.
Vo1 (3.3 V or 5.1 V) is generated by a power train using
synchronous rectifier technology thus enabling high effi-
ciency. Also there is active magnetic feedback on this out-
put via a pulse transformer which results in very tight and
reliable regulation of the output voltage. The other two out-
puts Vo2 and Vo3 are electrically isolated double outputs.
Vo2, Vo3 are restricted to being of the same output voltage
(i.e. D05, D12, etc.). Voltage regulation is achieved with a
passive transformer feedback from the main transformer
of that power train.
The dual output types consist of two electrically isolated
outputs Vo1, Vo2. Vo1 and Vo2 derives from two power
trains and are electrically isolated. Voltage regulation for
each output is achieved with passive transformer feedback
from the main transformer of each power train. Adjustment
of the outputs voltages in the range of 90...105% of Vo nom is
possible via Trim input on the primary side.
Adjustment of the output 1 (Vo1) is provided by the Trim1
pin referenced to the secondary side and allows for pro-
gramming of the voltage of output 1 in the range of approx.
90...105% of Vo nom. (See: Block diagram, triple output
types)
03097a
03098
4
Vi+
17 Vo1+
Vi+
4
16
Vo1+
1
5
6
7
8
2
3
PUL
n.c.
W
16
15
n.c.
1
5
6
7
8
2
3
PUL
Trim
Control
15
Vo1—
Vo1—
Trim1
PWM
17 Vo4+
18 Vo4—
13 Vo2+
PWM
W
Ref
Ref
18
13
SD
Vi—
n.c.
SD
Vi—
n.c.
Vo2+
14
12
Vo2—
Vo3+
14
12
Vo2—
Vo3+
11
19
Vo3—
n.c.
11 Vo3—
19 n.c.
Fig. 2
Block diagram, quadruple output types
Fig. 1
Block diagram, triple output types
Current limitation is provided by the primary circuit for each
power train and limits the possible output power for each
pair of outputs. In the case of an overload on either of the
power trains which causes the output voltage to fall less
than typically 60% of Vo nom, the entire converter will shut
down and automatically restart in short intervals.
Overtemperature protection is provided, this will shut down
the converter in excessive overload conditions with auto-
matic restart approximately in short intervals.
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 3 of 15
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
www.power-one.com
Page 4 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Inrush current
Input Transient Voltage Protection
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 reduce this cur-
rent.
A built-in suppressor diode provides effective protection
against input transients which may be caused for example
by short-circuits accross the input lines where the network
inductance may cause high energy pulses.
04022
I [A]
Table 4: Built-in transient voltage suppressor
Type
Breakdown
voltage
VBr nom [V]
Peak power
at 1 ms
Peak pulse
current
Ipp [A]
4
3
2
Pp [W]
20 IMX 35
40 IMX 35
70 IMX 35
110 IMX 35
39
1500
1500
600
22
9.7
2.9
2.5
100
151
176
1
t [µs]
0
20
50 60 70 80 90 100
10
30 40
600
Fig. 3
Typical inrush current at Ui nom, Po nom versus time
(40 IMX 35). Source impedance according to
For very high energy transients as for example to achieve
IEC/EN 61000-4-5 or ETR 283 (19 Pfl1) compliance (as per
table: Electromagnetic Immunity) an external inductor and
capacitor are required. The components should have simi-
lar characteristics as listed in table: Components for exter-
nal circuitry for IEC/EN 61000-4-5, level 2 or ETR 283
(19Pfl1) compliance.
prETS 300132-2, version 4.3 at Vi nom
.
Uo
trise
04008
Uo nom
Note: The suppressor diode D is only necessary for
20 IMX 35 types.
t
tstart up
Table 5: Components for external circuitry for IEC/EN
61000-4-5, level 2 or ETR 283 (19Pfl1) compliance.
Fig. 4
Converter start-up and rise time
Type
Inductor (L)
22 µH/5A
Capacitor (C)
470 µF/40 V
Diode (D)
20 IMX 35
40 IMX 35
70 IMX 35
1.5 k E47A
Reverse Polarity Protection
68 µH/2.7 A
100 µH/1 A
2 x 100 µF/100 V
2 x 82 µF/200 V
2 x 82 µF/200 V
-
-
-
The built-in suppressor diode also provides for reverse po-
larity protection at the input by conducting current in the re-
verse direction. An external fuse is required to limit this cur-
rent.
110 IMX 35 150 µH/0.8 A
Table 3: Recommended external fuses
04036
L
Vi+
Converter type
20 IMX 35
Fuse type
F8.0A
+
C
D
40 IMX 35
F4.0A
Vi–
70 IMX 35
F2.0A
110 IMX 35
F1.5A
Fig. 5
Example for external circuitry to comply with IEC/EN
61000-4-5 or ETR 283 (19Pfl1); the diode D is only neces-
sary for 20 IMX 35 types.
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 5 of 15
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 Output Data
Product Specifications
Aug 2002
General conditions:
– TA = 25°C, unless TC is specified
– Shutdown pin left open circuit (not connected)
– Trim not connected
Table 6a: Output data for single synchronous rectifier (main) output. [only 40IMX35-03 & 40IMX35-05 triple output units]
Output
3.3 V
5.1 V
Characteristics
Conditions
min typ
max
3.32
min typ max
Unit
V DC
A
Uo
Output voltage
Ui nom, Io = 0.5 Io nom 3.28
5.07
5.13
Io nom Output current
4.15
5.5
3.3
4.6
Io1L
Io2L
Current limit 1
Ui nom, TC = 25°C
Uo1 = 93% Uo nom
∆Uo U Line/load regulation
Ui min...Ui max
Io = (0.05...1) • Io nom
,
1
1
%
2
uo1/2
Output voltage noise
Ui min...Ui max
Io = Io nom
70
40
80
40
mVpp
3
Uo L
Output overvoltage limit. 4
115
130
3900
250
1
115
130
2700
250
1
%
µF
Co ext Admissible capacitive load
uo d
td
Dynamic
load
Voltage deviat. Ui nom
mV
ms
1
Io nom × /
2
Io nom
Recovery time
regulation
IEC/EN 61204
αUo
Temperature coefficient
∆Uo/∆TC
Ui min...Ui max
Io = 0...Io max
0.02
0.02
%/K
Table 6b: Output data for double output power trains. (Vo1/Vo4 or Vo2/Vo3, i.e. each output train has two outputs)
Output
2 x 5 V
2 x 12 V
2 x 15 V
Characteristics
Conditions
min typ max
min typ max
min typ max
Unit
Uo1
Uo2
Output voltage
Ui nom
Io = 0.5 Io nom
4.95
4.94
5.05
5.06
11.88
11.86
12.12
12.14
14.85
14.82
15.15 V DC
15.18
Io nom Output current
20 IMX Ui min...Ui max
40 IMX
2 x 1.35
2 x 1.4
2 x 1.4
2 x 1.4
3.5
2 x 0.65
2 x 0.55
2 x 0.60
A
2 x 0.70
2 x 0.70
2 x 0.70
1.8
70 IMX
2 x 0.60
2 x 0.60
1.5
110 IMX
IoL
Current limit 1
20 IMX Ui nom, TC = 25°C
Uo = 93% Uo nom
40 IMX
3.8
2.0
1.7
70 IMX
3.8
2.0
1.7
110 IMX
3.8
2.0
1.7
∆Uo U Line regulation
∆Uo l Load regulation
Ui min...Ui max, Io nom
1
3
1
3
1
3
%
Ui nom
Io = (0.1...1) Io nom
2
uo1/2
Output voltage noise
Ui min...Ui max
Io = Io nom
80
40
120
60
150
70
mVpp
3
Uo L
Output overvoltage limit. 4
Min. load 1%
115
130
4000
250
0.75
115
130
470
480
0.75
115
130
330
520
0.75
%
µF
Co ext Admissible capacitive load
uo d
td
Dynamic
load
Voltage deviat. Ui nom
mV
ms
1
Io nom × /
2
Io nom
Recovery time
regulation
αUo
Temperature coefficient
∆Uo/∆TC
Ui min...Ui max
Io = 0...Io max
0.02
0.02
0.02
%/K
1 The current limit is primary side controlled. In the event of a sustained overload condition the thermal protection may cause the unit to
shutdown (restart on cool-down).
2 BW = 20 MHz
3 Measured with a probe according to EN 61204
4 The overvoltage protection is via a primary side second regulation loop, not tracking with Trim control.
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 6 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Short Circuit Behaviour
Thermal Considerations
The current limit characteristic shuts down the converter
whenever a short circuit is applied to an output. It acts self-
protecting and automatically recovers after removal of the
overload condition (hiccup mode).
If a converter, mounted on a PCB, is located in free, quasi-
stationary air (convection cooling) at the indicated maxi-
mum ambient temperature TA max (see table: Temperature
specifications) and is operated at its nominal input voltage
and output power, the case temperature TC measured at
the Measuring point of case temperature TC (see: Mechani-
cal Data) will approach the indicated value TC max after the
warm-up phase. However, the relationship between TA and
TC depends heavily on the conditions of operation and inte-
gration into a system. The thermal conditions are influ-
enced by input voltage, output current, airflow, temperature
of surrounding components and the surfaces and proper-
ties of the printed circuit board. TA max is therefore only an
indicative value and under practical operating conditions,
the ambient temperature TA may be higher or lower than
this value.
Overtemperature Protection
The converter is protected against possible overheating by
means of an internal temperature monitoring circuit. It
shuts down the unit above the internal temperature limit
and attempts to automatically restart. This feature prevents
excessive internal temperature building up which could oc-
cur under heavy overload conditions.
Connection in Series
The outputs of one or several single or double output power
trains may be connected in series without any precautions.
Caution: The case temperature TC measured at the:
Measuring point of case temperature TC (see: Mechani-
cal Data) may under no circumstances exceed the
specified maximum value. The installer must ensure that
under all operating conditions TC remains within the lim-
its stated in the table: Temperature specifications.
Connection in Parallel
Several outputs of the same converter with equal output
voltage (e.g. 5V / 5V) can be put in parallel and will share
their output currents almost equally.
NOTE: A separate application note is available for uses
when all outputs are paralleled together.
Option -8
Extended Temperature Range
Parallel operation of several converters with the same out-
put voltage may cause start-up problems at initial start-up.
This is only advisable in applications where one converter
is able to deliver the full load current as is required in true
redundant systems. It is recommended not to parallel more
than three units at full load.
Extension of the temperature range from standard
–40...71°C to –40...85°C (upto 110°C). The modules will
provide the specified ouptut power with free air convection
cooling. In the upper temperature range the output power
derating below should be observed.
Output Power Vs AmbientTemp. and Airflow (-8 version)
The first outputs (main output of 5.1V or 3.3V) of triple out-
put units should not be paralleled, except in true redundant
systems using decoulping diodes.
120
100
80
60
200LFM (0.5 m/s)
1
40
0 LFM
20
0
Ambient Temperature (deg °C)
Fig. 6
Maximum allowed output power versus ambient tempera-
ture.
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 7 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Uo1, Uo2 [V]
Typical Performance Curves
05039
General conditions:
14
13
12
11
10
– TA = 25°C, unless TC is specified.
– Shut down pin left open circuit.
– Trim input not connected.
Uo2
Uo1
Uo [V]
5.5
Io1
Io1 nom
05019
[%]
50
75
100
125
150
0
25
5.0
Fig. 10
Flexible load distribution on power train 1 of
40 IMX 35 D12D12-9 (4 x 12 V) with load variation from
4.5
4.0
3.5
3.0
0...150% of Po1 nom on output 1 (Vo1). Output 2 (Vo4)
loaded with 50% of Po4 nom
.
h [%]
05152
90
Ui min
0
2
3
4
5
Io [A]
1
Ui nom
Fig. 7
80
70
60
Uo versus Io (typ) of units with Uo = 5.1 V.
(40 IMX 35-05D12-9).
Uo [V]
05020
13
Po
100 Po total
12
11
10
9
[%]
25
50
75
Fig. 11
Efficiency versus input voltage and load. Typical values
40 IMX 35 D12D12-9
h [%]
8
05153
90
Ui min
7
Io total [A]
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
0
80
Fig. 8
o1/2 versus Io1/2 of double output power trains
Ui nom
U
(i.e. 2 x 12 V). See: Block diagram 1
70
Uo4 [V]
05164
13.5
Po
60
[%]
13.0
25
50
75
100 Po total
Io4 = 0.035 A
Fig. 12
12.5
Efficiency versus input voltage and load. Typical values
20 IMX 35 D12D12-9
12.0
Io4 = 0.35 A
05041
Uo [%]
11.5
overload short circuit condition
100
11.0
switch-off
0.06
0.20
0.30
0.50 0.60 0.70 Io1 [A]
0.10
0.40
70
Fig. 9
8.5
Cross load regulation Uo4 versus Io1 (typ) for various Io4 for
Vo1, Vo4 on power train 1. See: Block diagram dual out-
put types. (20 IMX 35 D12D12-9)
t [ms]
60.5
60.5
Fig. 13
Overload switch off (hiccup mode), typical values.
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 8 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Quad output adjustment
Auxiliary Functions
Adjustable Output Voltage
The quadruple output units are shown in block diagram (fig.
2). All types with equal output voltage have the Trim func-
tion connected to pin 5 referenced to the primary side
which influences all outputs simultaneously. The schemat-
ics are shown in fig. 15, the values of the adjust resistor Rext
in Table 8 and the external voltage source in Table 9.
As a standard feature, the IMX 35 offer adjustable output
voltages in the range 90...105% of Vo nom by use of a con-
trol pin. The Trim control is offered either on primary or sec-
ondary side of the converter depending on type.
Adjustment by means of an external resistor Rext
:
Adjustment of the output voltage by means of an exter-
nal resistor Rext is possible within the range of
100...105% of Vo nom. Rext should be connected between
Trim (pin 5) and Vi– (pin 2). Connection of Rext to Vi+
may damage the converter. The following table indicates
suitable resistor values for typical output voltages under
nominal conditions (Vi nom, Io = 0.5 Io nom).
Triple output adjustment
Block diagram (fig. 1) shows the triple output units. They of-
fer a Trim1 input (pin 18) on the secondary side to adjust
Vo1. The other outputs remain unchanged.
The IMX 35 triple output feature a main power train with
magnetic feedback and synchronous rectifier. The simpli-
fied circuit is shown in Fig. 14.
Table 8: Rext1 for Vo > Vo nom
approximate values (Vi nom, Io = 0.5 Io nom
;
The Trim1 (pin 18) is secondary referenced and influences
only the main power train. Adjustment of the output voltage
is possible by means of an external resistor Rext between
the Trim1 pin and either Vo1+ or Vo1–. If the control input
)
Vo [% Vo nom Rext [kΩ]
]
Trim [kΩ]
Trim 1/4 [kΩ]
is left open circuit, the output voltage is set to Vo1 nom
.
105...108 (107 typically)
0
0
Table 7 lists typical values required to program the output
voltage to approximately the values of Vo1 indicated.
105
102
100
10
62
ꢀ
17
110
ꢀ
06136
06137
Vi+
Vi–
Vo1+
Trim1
Vo1–
Vi+
4
Vo1+
Vo1–
Vo2+
17
18
4
17
Rext1
Trim
5
15
13
+
–
Control
Uext
Rext
circuit
Rext2
Uref = 2.5 V
2
15
Vo2–
Vi–
2
11
Fig. 15
Output voltage control for Quad (double) output units by
means of the Trim input on the primary side.
Fig. 14
Output voltage control for the Trim1 input referenced to
the secondary side.
Adjustment by means of an external voltage source Vext
Table 7: Vo1 versus Rext for Vo1 = 90...105% Vo nom; typical
For external output voltage adjustment in the range
85...105% of Vo nom a (0...20 V) source Vext is required,
connected to the Trim (pin 5) and Vi–. The table below in-
dicates typical Vo versus Vext values. Applying a control
voltage 15...20 V will set the converter into a hiccup
mode. Direct paralleling of the Trim pins of units of the
same type connected in parallel is feasible.
values (Vi nom, Io1/2 = 0.5 Io1/2 nom
)
Vo nom
[V]
Rext1
Rext2
Vo1 [V]
[kΩ]
Vo1 [V]
[kΩ]
3.3
2.97
3.135
1.8
4.7
3.3
3.47
3.673
ꢀ
11
5
5.1
4.59
4.84
5.0
2.2
9.1
33
5.1
5.25
5.35
ꢀ
8.5
3
Table 9: Vo versus Vext for Vo = 85...105% Vo nom
;
typical values (Vi nom, Io = 0.5 Io nom
)
Uo [% Uo nom
]
Uext [V]
Trim [V]
Trim 1/4 [V]
>105
102
100
95
90
85
0
0
1.5
2.5
4.25
6.2
8
1.8
2.5
4.3
6.2
8
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 9 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Product Specifications
Aug 2002
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Synchronisation (W)
It is posible to synchronise the switching frequency of one
Programmable Input Undervoltage Lockout PUL
special feature of these units is the accurate
undervoltage lockout protection which protects the unit
(and the system) from large currents caused by operation
at low voltages. This ensures easier start-up in distributed
power systems.
or more converters to an external symmetrical clocksignal.
Consult factory if this option is required, for full application
details.
A
This logic input can be used to synchronise the oscillator to
an external frequency source. This pin is edge triggered
with TTL thresholds, and requires a source frequency of
490...540 kHz (duty cycle 10...90%). The external source
frequency is internally divided by 2 to define the switching
frequency for the converter. If unused, this pin can be con-
nected to V1– (pin 2) or left open-circuit.
Table 10: Turn on and turn off voltage
Type
Trigger level
7...8
Hysteresis
Units
V
20 IMX 35
40 IMX 35
70 IMX 35
110 IMX 35
<0.5
<1
14...15.5
31 ... 34
42 ...50
Reference (Ref)
<3
The signal output provides a stable 5 V ( 0.1 V) reference
signal on pin Ref. It is protected by a 1 kΩ resistor. This sig-
nal may be used also in conjunction with the Trim input pin
5 (primary side) as a limited external voltage reference.
<8
See: Electrical input data for a description of the turn on
turn off voltage levels of the various types.
It is recommended to connect a filter capacitor (0.1 µF)
between Ref and Vi–, if Vref is used.
The under voltage lockout levels may be programmed by
use of an external resistor to Trim up the preset levels as
indicated in the table below.
Shut Down Function
Table 11: Typical values for Rext and the respective lock-
out voltage for input voltage.
The outputs of the converters may be enabled or disabled
by means of a logic signal (TTL, CMOS, etc.) applied to the
shut down pin. If the shut down function is not required then
it should be left open-circuit.
20 IMX 35
40 IMX 35
Rext [kΩ]
RPUL [kΩ]
Ui min [V]
Umin [V]
≤15.5
22
Converter operating:
2.0...20 V
ꢀ
39
19
13
9.1
≤8
10
12
14
16
ꢀ
43
16
10
0
Converter shut down: –10...0.7 V
Option i
26
Inhibit (negative shutdown logic)
28
The output of the converter may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied to the
inhibit pin. No output voltage overshoot will occur when the
unit is turned on. If the inhibit function is not required the
inhibit (pin 8) should be connected to Vi– to enable the out-
put (active low logic, fail safe).
32
70 IMX 35
110 IMX 35
R
PUL [kΩ]
Ui min [V]
Rext [kΩ]
ꢀ
Umin [V]
42
ꢀ
31
40
50
55
Converter operating:
Converter inhibited
–10 V...0.8 V
270
110
270
50
or inhibit pin left open circuit: 2.4 V...20 V
120
60
06138
80
51
75
4
8
2
Vi+
i
Vi–
Fig. 16
If the inhibit is not used the inhibit pin should be con-
nected to Vi–
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 10 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Electromagnetic Compatibility (EMC)
Product Specifications
Aug 2002
which typically occur in many installations, but especially in
battery driven mobile applications.
A suppressor diode together with an input filter form an ef-
fective protection against high input transient voltages
Electromagnetic Immunity
Table 12: Immunity type tests
Phenomenon
Standard 1
Class
Level
Coupling
mode 2
Value
applied
Waveform
Source
Imped.
Test
procedure
In
oper. form.
Per- 3
Electrostatic
discharge
to case
IEC/EN
61000-4-2
2
3
3
contact discharge 4000 Vp
(R pin open)
1/50 ns
330 Ω
10 positive and
10 negative
discharges
yes
B
air discharge
(R pin open)
8000 Vp
Electromagnetic IEC/EN
field
antenna
10 V/m
AM 80%
1 kHz
26…1000 MHz
900 MHz
yes
A
61000-4-3
ENV 50204
PM, 50% duty
cycle, 200 Hz
resp. frequ.
Electrical fast
transient/burst
IEC/EN
61000-4-4
4
direct +i/–i
4000 Vp bursts of 5/50 ns 50 Ω
5 kHz rep. rate
1 min positive
1 min negative
transients per
coupling mode
yes
yes
B
B
transients with
15 ms burst
duration and a
300 ms period
Surge
IEC/EN
61000-4-5 4
3
+i/–i
+i/–i
2000 Vp
1.2/50 µs
2 Ω
5 pos. and 5 neg.
impulses per
coupling mode
EN 50155
D
G
3
1800V
8400V
10 Vrms
5/50 µs
.05/01 µs
100 Ω
50 Ω
triangular
yes
yes
B
A
Conducted
disturbancies
IEC/EN
61000-4-6
AM modulated
0.15...80 MHz
(140 dBµV) 80%, 1 kHz
150 Ω
1 Related and previous standards are referenced in: Technical Information: Standards.
2 i = input, o = output.
3 A = normal operation, no deviation from specification, B = temporary deviation from specs. possible.
4 External components required.
Electromagnetic Emission
[dBµV]
90
07020
80
EN 55022 A
EN 55022 B
70
60
50
40
30
20
10
0
MHz
Fig. 17
Typical disturbance voltage (quasi-peak) at the input ac-
cording to CISPR 11/EN 55011 and CISPR 22/EN 55022,
measured at Ui nom and Io nom. Output leads 0.1 m, twisted.
(40 IMX 35 D12D12-9)
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 11 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
CISPR 22/EN 55022, Level B Radiated
Product Specifications
Aug 2002
07114
Electromagnetic emission requirements according to
EN 55022, class B (radiated) can be achieved by adding an
external common mode choke and (for 20 IMX 35 types) an
L
V+
Vi+
additional capacitor, see: Input Data. The filter components
should be placed as close as possible to the input of the
converter.
Module
Vi–
V–
Table 13: Input filter components for EN 55022, level B,
radiated.
Type
Current compensated choke
Fig. 18
20 IMX 35
40 IMX 35
70 IMX 35
110 IMX 35
Murata PLH1OA series 7003R6P02
Murata PLH1OA series 1612R1P02
Murata PLH1OA series 2911R2P02
Murata PLH1OA series 3711R0P02
Example for external circuitry to comply with CISPR22/EN
55022, level B, radiated
Immunity to Environmental Conditions
Table 14: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
-8 3
Characteristics
Conditions
Operational 2
min
–40
–40
–55
max
852
Unit
°C
TA
TC
TS
Ambient temperature 1
Case temperature
Storage temperature 1
110
110
Non operational
1 MIL-STD-810D section 501.2 and 502.2
2 See: Thermal Considerations
3 Start up at –55°C
Table 15: MTBF and device hours
MTBF (Standard)
Ground Benign
Ground Fixed
Ground Mobile
40 IMX 35 (MIL-HDBK-217F)
110 IMX 35 (Bellcore)
336,000 hrs (TC = 40°C) 141,000 (TC = 40°C) 86,000 (TC = 70°C) 110,000 (TC = 50°C)
1,372,000 hrs @ 25°C at 100% load
Table 16: Environmental testing
Test Method
Standard
IEC/DIN IEC 60068-2-3
MIL-STD-810D section 507.2 Relative humidity:
Duration:
Test Conditions
Status
Ca
Ea
Eb
Fc
Damp heat
steady state
Temperature:
40 2 °C
%
56 days
Unit not
operating
93 +2/-3
Shock
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-27
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
100 gn = 981 m/s2
6 ms
18 (3 each direction)
Unit
operating
Bump
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-29
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
40 gn = 392 m/s2
6 ms
6000 (1000 each direction)
Unit
operating
Vibration
IEC/EN/DIN EN 60068-2-6
Acceleration amplitude:
0.35 mm (10...60 Hz)
Unit
(sinusoidal)
5 gn = 49 m/s2 (60...2000 Hz) operating
10...2000 Hz
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h each axis)
Fh
Kb
Vibration
broad-band
random
IEC/EN 60068-2-64
MIL-STD-810D section 514.3 Frequency band:
Acceleration magnitude:
Acceleration spectral density: 0.05 gn2/Hz
Unit
operating
20...500 Hz
4.9 gn rms
(digital control)
Test duration:
3 h (1 h each axis)
Salt mist, cyclic
(sodium chloride
NaCl solution)
IEC/EN/DIN IEC 60068-2-52 Concentration:
5% (30°C)
Unit not
operating
Duration:
Storage:
Storage duration:
Number of cycles:
2 h per cycle
40°C, 93% rel. humidity
22 h per cycle
3
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 12 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Mechanical Data
Dimensions in mm. Tolerances 0.3 mm unless otherwise indicated.
European
Projection
09121
09123
0.8 x 0.8
thread M3
0.8 x 0.8
Tc
Tc
Tc
63.5
72.8
63.5
69.6
76.2
Tc
Cores
Fig. 20
Case IMX 35 open frame (option Z)
Weight: 43 g
Fig. 19
Case IMX 35 (Standard)
Weight: 67 g
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 13 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Safety and Installation Instructions
Table 18: Pin allocation
Installation Instructions
Pin No.
Triple
output
Quadruple
output
Installation of the DC-DC converters must strictly follow the
national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
1
2
PUL
Vi–
PUL
Vi–
3
n.c.
n.c.
Connection to the system shall be made via a printed cir-
cuit board with hole diameters of 1.5 mm for the pins.
4
Vi+
Vi+
The units should be connected to a secondary circuit.
5
n.c.
Trim or Trim1
W
Check for hazardous voltages before altering any connec-
tions.
6
W
7
Ref
Ref
Do not open the module.
8
SD or i
Vo3–
Vo3+
Vo2+
Vo2–
Vo1–
n.c.
SD or i
Vo3–
Vo3+
Vo2+
Vo2–
Vo1–
Vo1+
Vo4+
Vo4–
n.c.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also: Safety
of operator accessible output circuit.
11
12
13
14
15
16
17
18
19
Input Fuse
To prevent excessive current flowing through the input sup-
ply line in case of a short-circuit across the converter input
an external fuse should be installed in a non earthed input
supply line. We recommend a fast acting fuse F8.0A for
20 IMX 35 types, F4.0 A for 40 IMX 35 types, F2.0 A for
70 IMX 35 types and F2.0 A for 110 IMX 35 types.
Vo1+
Trim1
n.c.
Standards and approvals
09122
All DC-DC converters are pending to be UL recognized ac-
cording to UL 1950, UL recognized for Canada to CAN/
CSA C22.2 No. 950-95 and LGA approved to IEC/EN
60950 standards.
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
Bottom
view
The units have been evaluated for:
• Building in
• Basic insulation input to output, based on their maximum
input voltage
• The use in a pollution degree 2 environment
• Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V
Fig. 21
Pin allocation
After approvals the DC-DC converters are subject to manu-
facturing surveillance in accordance with the above men-
tioned UL, CSA, EN and with ISO 9001 standards.
Protection Degree
The protection degree of the DC-DC converters is IP 30
(not for option Z).
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Power-One will not honour any
guarantee claims resulting from electric strength field tests.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids should be prevented, since the power sup-
plies are not hermetically sealed.
Table 17: Electric strength test voltages
However, open cased units (option Z) which leave the fac-
tory unlacquered may be cleaned and lacquered by the
customer.
Characteristic
Input to output
IMX 35
Output to
output
Unit
Electric strength
test voltage 1 s
1.2
1.5
kVrms
kV DC
MΩ
0.2
-
Insulation resistance
at 500 V DC
>100
Partial discharge
extinction voltage
Consult factory
-
kV
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 14 of 15
IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Safety of operator accessible output circuit
Product Specifications
Aug 2002
IEC/EN 60950 up to a configured output voltage (sum of
nominal voltages if in series or +/– configuration) of 42 V.
If the output circuit of a DC-DC converter is operator acces-
sible, it shall be an SELV circuit according to the IEC/EN
60950 related safety standards
However, it is the sole responsibility of the installer to en-
sure the compliance with the relevant and applicable safety
regulations. More information is given in: Technical Infor-
mation: Safety.
The following table shows some possible installation con-
figurations, compliance with which causes the output circuit
of the DC-DC converter to be an SELV circuit according to
Table 19: Insulation concept leading to an SELV output circuit
Conditions Front end
DC-DC converter
Result
Supply
voltage
Minimum required grade Maximum Minimum required
of isolation, to be provided DC output safety status of the
Type
Measures to achieve the Safety status of
specified safety status of the DC-DC
by the AC-DC front end,
including mains supplied
battery charger
voltage
from the
front end 1
front end output
circuit
the output circuit
converter output
circuit
Mains
≤250 V AC
Basic
<60 V
<75 V
Earthed SELV circuit 2 IMX 35 Operational insulation
(provided by the DC-DC
SELV circuit
converter)
Hazardous voltage
secondary circuit
IMX 35 Input fuse 3 output sup-
pressor diodes 4, and
Earthed SELV
circuit
2
earthed output circuit
1 The front end output voltage should match the specified input voltage range of the DC-DC converter.
2 The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950.
3 The installer shall provide an approved fuse (type with the lowest rating suitable for the application) in a non-earthed input conductor
directly at the input of the DC-DC converter (see fig.: Schematic safety concept). For UL’s purpose, the fuse needs to be UL-listed.
See also: Input Fuse.
4 Each suppressor diode should be dimensioned in such a way, that in the case of an insulation fault the diode is able to limit the output
voltage to SELV (<60 V) until the input fuse blows (see fig.22: Schematic safety concept).
10004
Fuse
+
~
Mains
Suppressor
diode
AC-DC
front
DC-DC
con-
Battery
SELV
end
verter
–
~
Earth
connection
Earth
connection
Fig. 22
Schematic safety concept. Use fuse, suppressor diode and earth connection as per table: Safety concept leading to an
SELV output circuit.
Description of Options
Table 20: List of options
Option
Function of option
Extended temperature range
Inhibit
Characteristic
–8
i
TA = –40...110°C, with airflow and derating
-
-
Z
Open frame
AUG 13, 2002
Rev 1.0
www.power-one.com
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