110IMX35D05D12-8IZ-G [BEL]
4-OUTPUT 35W DC-DC REG PWR SUPPLY MODULE;
| 型号： | 110IMX35D05D12-8IZ-G |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 4-OUTPUT 35W DC-DC REG PWR SUPPLY MODULE 输出元件 电源电路 |
| 文件： | 总15页 (文件大小：468K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Features
• RoHS lead-free-solder and lead-solder-exempted
products are available.
• Extremely wide input voltage ranges up to 150 VDC
• 4 outputs up to 60 V
• 1200 to 1800 VAC i/o electric strength test
• Electrical isolation between outputs
• Programmable input undervoltage lockout
• Shutdown/inhibit input
• Adjustable output voltages with flexible load distribution
• Frequency synchronization
10.5
0.41"
63.5
2.5"
76.2
3"
• Outputs no-load, overload, and short-circuit proof
• Operating ambient temperature from –40 to 85 °C
• Thermal protection
• Low profile: 10.5 mm or 8.9 mm with open frame
• Basic insulation
• Flexible output possibilities between 5 V and 60 V
Safety-approved to IEC/EN 60950-1 and UL/CSA
60950-1 2nd Ed.
8.9
0.35"
47.8
1.88"
72.8
2.87"
Description
The IMX35 Series of board-mountable, 35 Watt DC-DC
converters has been designed according to the latest industry
requirements and standards. The converters are particularly
suitable for use in mobile or stationary applications in
transport, railways, industry, or telecommunication, where
variable input voltages or high transient voltages are
prevalent.
approved by TÜV and CSA. The converters provide basic
insulation.
The circuit is comprised of 2 planar magnetics devices, and all
components are automatically assembled and securly
soldered onto a single PCB without any wire connection.
Magnetic feedback ensures maximum reliability and
repeatability in the control loop over all operating conditions.
Careful considerations of possible thermal stresses ensure
the absence of hot spots providing long life in environments,
where temperature cycles are present. The thermal design
without using any potting material allows operation at full load
up to an ambient temperature of 71°C in free air and operation
up to 105 °C with airflow. For extremely high vibration
environments the case has holes for screw mounting.
Covering a total input voltage range from 9 V up to 150 V with
4 different models, the converters are available with up to four
electrically isolated outputs from 5 V to 60 V, externally
adjustable and with flexible load distribution. A shutdown input
allows remote converter on/off. Features include consistently
high efficiency over the entire input voltage range, high
reliability, and excellent dynamic response to load and line
changes.
The converters are designed and built according to the
international safety standards IEC/EN/UL 60950, and
Table of Contents
Page
Page
Description ............................................................................. 1
Model Selection ..................................................................... 2
Functional Description ........................................................... 3
Electrical Input Data ............................................................... 4
Electrical Output Data ............................................................ 6
Auxiliary Functions ................................................................. 9
Electromagnetic Compatibility (EMC) .................................. 11
Immunity to Environmental Conditions ................................ 12
Mechanical Data .................................................................. 13
Safety and Installation Instructions ...................................... 14
Options................................................................................. 15
BCD20009-G Rev AC, 06-May-2013
Page 1 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Model Selection
Table 1: Model Selection
Output 1
Output 2
Output 3
Output 4
Input voltage
Vi min to Vi max
[V]
Efficiency 1
Model
Opt.
Vonom
Ionom
Vonom
Ionom
Vonom
Ionom
Vonom
Ionom
η
η
typ
min
[V]
[A]
[V]
[A]
[V]
[A]
[V]
[A]
[%]
[%]
5
5
5
5
1.35
1.4
1.4
1.4
5
5
5
5
1.35
1.4
1.4
1.4
5
5
5
5
1.35
1.4
1.4
1.4
5
5
5
5
1.35
1.4
1.4
1.4
9 to 36
82.5
86
87
86
86
20IMX35D05D05-8
40IMX35D05D05-8
70IMX35D05D05-8
110IMX35D05D05-8
i
Z
G
18 to 75
82
40 to 121
60 to 1502
83
82
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 to 36
18 to 75
83.7
83.7
85
86
88
88
88
20IMX35D12D12-8
40IMX35D12D12-8
70IMX35D12D12-8
110IMX35D12D12-8
40 to 121
60 to 1502
84
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 to 36
18 to 75
85
83.6
84.5
83
88
89
88
88
20IMX35D15D15-8
40IMX35D15D15-8
70IMX35D15D15-8
110IMX35D15D15-8
40 to 121
60 to 1502
5
5
5
5
1.35
1.4
1.4
1.4
12
12
12
12
0.65
0.7
0.7
0.7
12
12
12
12
0.65
0.7
0.7
0.7
5
5
5
5
1.35
1.4
1.4
1.4
9 to 36
18 to 75
84
84
88
89
88
88
20IMX35D05D12-8
40IMX35D05D12-8
70IMX35D05D12-8
110IMX35D05D12-8
40 to 121
84
60 to 1502
83.6
5
5
5
5
1.35
1.4
1.4
1.4
15
15
15
15
0.55
0.6
0.6
0.6
15
15
15
15
0.55
0.6
0.6
0.6
5
5
5
5
1.35
1.4
1.4
1.4
9 to 36
18 to 75
83.5
83.5
84
88
89
88
88
20IMX35D05D15-8
40IMX35D05D15-8
70IMX35D05D15-8
110IMX35D05D15-8
40 to 121
60 to 1502
84
1
2
Efficiency at TA = 25 °C, Vo nom, Io nom
154 V for 2 s.
Part Number Description
Input voltage range Vi
40 IMX35 D05 D05 -8 i Z G
9 to 36 VDC ........................................... 20
18 to 75 VDC ........................................... 40
40 to 121 VDC ........................................... 70
60 to 150 VDC ......................................... 110
Series ....................................................................... IMX35
Outputs 1 and 4 (1st power train)............... D05, D12, D15
Outputs 2 and 3 (2nd power train) .............. D05, D12, D15
Operating ambient temperature range
TA = –40 to 85 °C ...................................... -8
Options:
Inhibit ........................................................... -i
Open frame ................................................. Z
RoHS compliant for all six substances ........ G1
1
G is always placed at the end of the part number.
Preferred for new designs
Product Marking
Converters without option Z are marked with type designation,
input and output voltages and currents, applicable safety
approval and recognition marks, company logo, production
date, and serial no.
BCD20009-G Rev AC, 06-May-2013
Page 2 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
voltage (e.g. D12D12), all outputs may be simultaneously
adjusted by the Trim input (pin 5). In case of different output
voltages (e.g. D05D15), the Trim1 input influences only Vo1
and Vo4.
Functional Description
The IMX35 converters are comprised of 2 feedback-controlled
interleaved-switching flyback power trains using current mode
PWM (pulse width modulation).
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 (hiccup mode).
Each converter consists of 4 electrically isolated outputs
deriving from 2 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 the
power train. Each pair of outputs has the same output voltage
(i.e. D05, D12, etc.). If both power trains have the same output
The incorporated overtemperature protection shuts down the
converter in excessive overload conditions with automatic
restart.
03098a
Vi+
4
16
15
Vo1+
Vo1–
1
5
6
7
8
2
3
PUL
Trim/Trim1
17 Vo4+
18 Vo4–
13 Vo2+
PWM
W
Ref
SD
Vi–
n.c.
14
12
Vo2–
Vo3+
11 Vo3–
19 n.c.
Fig. 1
Block diagram of quad-output models
BCD20009-G Rev AC, 06-May-2013
Page 3 of 15
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
Page 4 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
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 in order to further reduce this
current.
A built-in suppressor diode provides effective protection
against input transients, which may be generated for example
by short-circuits across the input lines, where the network
inductance may cause high energy pulses.
Table 4: Built-in transient voltage suppressor
A
04022b
Model
Breakdown
voltage
Peak power
at 1 ms
Peak pulse
current
Ipp [A]
4
3
2
VBr nom [V]
Pp [Ω]
20IMX35
40IMX35
70IMX35
110IMX35
39
1500
1500
600
22
9.7
2.9
2.5
100
151
176
1
t
100 µs
600
0
20
60
80
40
Fig. 2
For very high energy transients as for example to achieve
IEC/EN 61000-4-5 compliance (as per table Electromagnetic
Immunity) an external inductor and capacitor are required. The
components should have similar characteristics as listed in
table below.
Typical inrush current at Vi nom, Po nom versus time (40IMX35).
Source impedance according to ETS 300132-2 at Vi nom
.
Vo
trise
04008b
Vo nom
Table 5: Components for external circuitry for IEC/EN
61000-4-5, level 2
Model
Inductor (L)
22 µH /5 A
Capacitor (C)
470 µF /40 V
Diode (D)
20IMX35
40IMX35
70IMX35
110IMX35
1.5 k E47A
t
tstartup
68 µH /2.7 A
100 µH /1 A
150 µH /0.8 A
2 x 100 µF /100 V
2 x 82 µF /200 V
2 x 82 µF /200 V
-
-
-
Fig. 3
Converter start-up and rise time (see table 2)
04036a
L
Reverse Polarity Protection
Vi+
Vi–
The built-in suppressor diode also provides for reverse
polarity protection at the input by conducting current in the
reverse direction. An external fuse is required to limit this
current.
+
C
D
Table 3: Recommended external fuses in the non-earthed
input line
Converter model
Fuse type
Fig. 4
20IMX35
F8.0A
Example for external circuitry to comply with IEC/EN 61000-
4-5; the diode D is only necessary for 20IMX35 models.
40IMX35
F4.0A
70IMX35
F2.0A
110IMX35
F1.5A
BCD20009-G Rev AC, 06-May-2013
Page 5 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Electrical Output Data
General conditions:
– TA = 25 °C, unless TC is specified
– Pins 8 (shutdown or i), 6 (W), 5 (Trim or Trim1), and 1 (PUL) left open-circuit (not connected), unless specified.
Table 6: Output data per double-output power train (Vo1/Vo4 or Vo2/Vo3; each power train has 2 outputs)
Output
2 x 5 V
2 x 12 V
typ
2 x 15 V
Unit
Characteristics
Conditions
min typ max
min
max
min
typ max
Vo1
Output voltage
Vi nom
4.95
4.94
5.05
5.06
11.88
11.86
12.12
12.14
14.85
14.82
15.15
15.18
VDC
A
Vo2
Io = 0.5 Io nom
Io nom
Output current
20IMX Vi min to Vi max
40IMX
2 × 1.35
2 × 1.4
2 × 1.4
2 × 1.4
3.5
2 × 0.65
2 × 0.70
2 × 0.70
2 × 0.70
1.8
2 × 0.55
2 × 0.60
2 × 0.60
2 × 0.60
1.5
70IMX
110IMX
IoL
Current limit1
20IMX Vi nom, TC = 25 °C
Vo = 93% Vo nom
40IMX
3.8
3.8
3.8
2.0
2.0
2.0
1.7
1.7
1.7
70IMX
110IMX
∆Vo
Line regulation
Load regulation
Vi min to Vi max, Io nom
±1
±3
±1
±3
±1
±3
%
∆Vo l
Vi nom
Io = (0.1 to 1) Io nom
2
3
Vo1/2
Output voltage noise
Vi min to Vi max
Io = Io nom
80
40
120
60
150
70
mVpp
Vo L
Output overvoltage limit. 4
Admissible capacitive load
Min. load 1%
produced after 2011
115
0
130
6000
115
0
130
680
115
0
130
470
%
Co ext
µF
5
per power train
Vo d
td
Dynamic
load
regulation
Voltage deviat. Vi nom
±250
0.75
±480
0.75
±520
0.75
mV
ms
I
o nom ↔ 1/
Io nom
2
Recovery time
αVo
Temperature coefficient
∆Vo/∆TC
Vi min to Vi max
Io = (0.1 to 1) Io nom
±0.02
±0.02
±0.02
%/K
1
Both outputs of each power train connected in parallel. The current limit is primary side controlled. In the event of a sustained overload
condition, the thermal protection may cause the converter to shut down (restart on cool-down).
BW = 20 MHz, measured with an external capacitor of 1 µF across the output pins.
Measured with a probe according to EN 61204
2
3
4
5
The overvoltage protection is via a primary side second regulation loop, not tracking with Trim control.
Sum of the capacities on both outputs of each power train
BCD20009-G Rev AC, 06-May-2013
Page 6 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Vo [%]
Thermal Considerations
overload short-circuit condition
If a converter, mounted on a PCB, is located in free, quasi-
stationary air (convection cooling) at the indicated maximum
ambient temperature TA max (see table Temperature specifi-
cations) and is operated at its nominal input voltage and output
power, the case temperature TC (TC Z with option Z) measured
at the measuring point of case temperature (see Mechanical
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 integration
into a system. The thermal conditions are influenced by input
voltage, output current, airflow, temperature of surrounding
components and the surfaces and properties 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.
100
switch-off
05041b
70
t
0
0.3 s
Fig. 6
Overload switch off (hiccup mode), typical values.
Series and Parallel Connection
The outputs of one or several double-output power trains may
be connected in series respecting the current limitation.
Caution: The case temperature TC (or TC Z) measured at the
measuring point of case temperature (see Mechanical Data) may
under no circumstances exceed the specified maximum value.
The installer must ensure that under all operating conditions TC (or
TC Z) remains within the limits stated in the table Temperature
specifications.
Both outputs of the same power train can always be
connected in parallel in will behave like a single output.
Several outputs of the same converter with equal output
voltage (e.g. 5 V / 5 V) can be connected in parallel and will
share their output currents almost equally.
The converters provide the specified output power with free air
convection cooling. In the upper temperature range the output
power derating below should be observed.
If outputs of the same converter are being parallel and series-
connected, it is recommended that outputs from the same
power trains are parallel-connected first. This applies for
instance, if 24 V shall be generated by a converter with four
12 V outputs; see fig. 7.
Po/Po max
11047-X35a
JM138
1.0
0.8
IMX35D12D12-9
Vo1+
16
Vi+
4
0.5 m/s
= 100 LFM
0.6
1
5
6
7
8
2
3
PUL
Vo1–
Vo4+
natural cooling
15
17
0.4
0.2
0
Trim
W
PWM
Ref
Vo4–
Vo2+
–24V
+24V
18
13
TA
SD
Vi–
n.c.
20
40
60
80
100
°C
Fig. 5
Maximum allowed output power versus ambient
temperature.
Vo2–
Vo3+
14
12
Overtemperature Protection
Vo3–
11
The converter is protected against possible overheating by
means of an internal temperature monitoring circuit. It shuts
down the converter above the internal temperature limit and
attempts to automatically restart. This feature prevents
excessive internal temperature building up which could occur
under heavy overload conditions.
19 n.c.
Fig. 7
Generating 24 V with an IMX35D12D12-9
Note: Parallel operation of several converters may cause start-
up problems. This becomes noticable in applications, where one
converter is not able to deliver allone the full resistive and
capacitive load current, as it is required in true redundant systems.
Short Circuit Behavior
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).
BCD20009-G Rev AC, 06-May-2013
Page 7 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
η [%]
Typical Performance Curves
05153a
90
General conditions:
Vi min
– TA = 25°C, unless TC is specified.
– Shut down and Trim pin left open-circuit.
80
Vi nom
Vo [V]
05020-X35
13
12
11
10
9
70
Po
100 % Po total
60
25
50
75
Fig. 11
8
Efficiency versus input voltage and load. Typical values
(20IMX35D12D12-8)
Io total
0
0.5
1
1.5
2
A
Fig. 8
Vo versus Io (typ.) of double-output power trains, with both
outputs in parallel (e.g., Vo1/4 of a 40IMX35D12D12)
η [%]
05152a
90
Vi min
Vi nom
Vo4 [V]
80
70
05164b
13.5
13
Io4 = 0.035 A
12.5
12
Po
100 % Po total
60
25
Io4 = 0.35 A
50
75
11.5
Io1
Fig. 12
0.06
0.2
0.3
0.5
0.6
0.7 A
0.1
0.4
Efficiency versus input voltage and load. Typical values
(40IMX35D12D12-8)
Fig. 9
Cross load regulation (typ.) on power train 1. Vo4 versus Io1
Vo1, Vo4 [V]
05039b
14
13
12
11
10
Vo4
Vo1
Io1/Io1 nom
0.5
0.75
1
1.25
1.5
0
0.25
Fig. 10
Flexible load distribution (typ.) on power train 1 of a
40IMX35D12D12-8:
Vo1 versus Io1, Io4 = 0.5 Io4 nom
BCD20009-G Rev AC, 06-May-2013
Page 8 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Table 8: Vo versus Vext for Vo = 85 to 105% Vo nom
;
Auxiliary Functions
typical values (Vi nom, Io = 0.5 Io nom
)
Adjustable Output Voltage
Vo [% Vo nom
]
Vext [V]
As a standard feature, the IMX35 offer adjustable output
voltages in the range of 85 to 105% of Vo nom. Fig. 12 shows the
schematic diagram for the adjustment of quad-output models.
Trim [V]
Trim1 [V]
>105
102
100
95
0
0
1.5
2.5
4.25
6.2
8
1.8
2.5
4.3
6.2
8
All models with equal output voltages have a Trim input at pin
5 referenced to the primary side, influencing all outputs simul-
taneously. Models with different output voltages exhibit a
Trim1 input, influencing only the first power train (Vo1 and Vo4).
90
85
Adjustment by means of an external resistor Rext
:
Synchronization (W)
06137c
It is possible to synchronize the switching frequency of one or
more converters to an external clock signal.
Vi+
Vo1+
Vo1–
Vo2+
16
4
5
Trim
This logic input W can be used to synchronize the oscillator to
an external frequency source. This signal is edge-triggered
with TTL thresholds and requires a source frequency of 490 to
540 kHz (duty cycle 10 to 90%). The external source frequency
is internally divided by 2 to define the switching frequency of
the converter. If unused, this pin can be connected to V1– (pin
2) or left open-circuit.
15
13
+
–
Control
circuit
Vref = 2.5 V
Vext
Rext
Vi–
Vo2–
2
14
Fig. 13
Reference Output (Ref)
Output voltage control by means of the Trim input
The converter provides a stable 5 V (±0.1 V) reference signal
on pin 7 (Ref). The output is protected by a 1 kΩ resistor. The
signal may be used also in conjunction with the Trim input (pin
5) as a limited external voltage reference.
Adjustment of the output voltage by means of an external
resistor Rext is possible within the range of 100 to 105% of
Vo nom. Rext should be connected between Trim (pin 5) and Vi–
(pin 2). The following table indicates suitable resistor values for
typical output voltages under nominal conditions (Vi nom, Io =
0.5 Io nom).
It is recommended to connect a filter capacitor (0.1 µF)
between Ref and Vi–, if Ref is used.
Shutdown
Note: Connection of Rext to Vi+ may damage the converter.
The outputs of the converters may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied to shut-
down (pin 8). If the shutdown function is not required, pin 8
should be left open-circuit:
Adjustment by means of an external voltage source Vext
Table 7: Rext for Vo > Vo nom
;
approximate values (Vi nom, Io = 0.5 Io nom
)
Converter operating:
Converter disabled:
2.0 to 20 V
–10 to 0.7 V
Vo [% Vo nom
]
Rext [kΩ]
Trim
Trim1
105 to 108 (107 typically)
0
0
17
110
∞
105
102
100
10
62
∞
For external output voltage adjustment in the range 85 to
105% of Vo nom a voltage source Vext (0 to 20 V) is required,
connected to Trim or Trim1 (pin 5) and Vi–. The table below
indicates typical values Vo versus Vext. Applying a control
voltage of 15 to 20 V will set the converter into the hiccup
mode. Direct paralleling of the Trim pins of converters of the
same type connected in parallel is feasible.
BCD20009-G Rev AC, 06-May-2013
Page 9 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Progr. Input Undervoltage Lockout PUL
A special feature of the converters (with Rev. BA or later) is the
adjustable undervoltage lockout protection, which protects
the converter (and the system) from high current caused by
operation at low input voltages. This ensures easier start-up
in distributed power systems.
The table below shows the band of switch on/off and the
hysteresis.
Table 9: Trigger level and hysteresis (pin 1 left open)
Model
Trigger level
7 to 8
Hysteresis
Unit
20IMX35
40IMX35
70IMX35
110IMX35
<0.5
<1
V
14 to 15.5
31 to 34
<3
42 to 50
<8
The undervoltage lockout levels may be programmed by using
an external resistor RPUL between PUL and Vi– to increase the
preset levels as specified in table 10.
Table 10: Typical values for RPUL and the respective lockout
voltage for input voltage.
20IMX35
40IMX35
RPUL [kW]
Vi min [V]
RPUL [kW]
Vi min [V]
∞
39
19
13
9.1
≤ 8
10
12
14
16
∞
43
16
10
0
≤ 15.5
22
26
28
32
70IMX35
110IMX35
RPUL [kW]
Vi min [V]
RPUL [kW]
Vi min [V]
∞
270
110
80
31
40
50
55
∞
42
50
60
75
270
120
51
BCD20009-G Rev AC, 06-May-2013
Page 10 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
effective protection against high input transient voltages which
typically occur in many installations, but especially in battery-
driven mobile applications.
Electromagnetic Compatibility (EMC)
A suppressor diode together with an input filter form an
Electromagnetic Immunity
Table 11: Immunity type tests
Phenomenon
Standard
Class
Level
Coupling
mode 1
Value
Waveform
Source
imped.
Test
In
Perf-
applied
procedure
oper. crit.2
Electrostatic
discharge
to case
IEC/EN
2
contact discharge 4000 Vp
(Trim pin open)
1/50 ns
330 Ω
10 positive and
10 negative
discharges
yes
B
61000-4-2
3
air discharge
8000 Vp
10 V/m
10 V/m
(Trim pin open)
Electromagnetic IEC/EN
field
3 3
3
antenna
antenna
AM 80%
1 kHz
n.a.
n.a.
80 to 1000 MHz
900 MHz
yes
yes
A
A
61000-4-3
ENV 50204
PM, 50% duty
cycle, 200 Hz
repetition frequ.
Electrical fast
IEC/EN
4
direct +i/–i
±4000 Vp bursts of 5/50ns
2.5/5 kHz
50 Ω
60 s positive,
60 s negative
transients per
coupling mode
yes
B
transients/burst 61000-4-4
over 15 ms,
burst period
300 ms
Surges
IEC/EN
61000-4-5
3 4
+i/–i
±2000 Vp
1.2/50 µs
2 Ω
5 pos. and 5 neg.
surges
yes
B
EN 50155:
2001
A 5
B6
3
+i/c, –i/c
+i/c, –i/c
+i/–i
±1800 Vp
8400 Vp
5/50 µs
100 Ω
100 Ω
50 Ω
yes
yes
yes
B
B
A
0.05/0.1 µs
RF Conducted
immunity
IEC/EN
61000-4-6
10 VAC
(140 dBµV)
AM modulated
80%, 1 kHz
0.15 to 80 MHz
150 Ω
1
i = input, o = output, c = case (not with option Z)
2
3
4
5
6
A = normal operation, no deviation from specification, B = temporary deviation from specs. possible.
Corresponds to EN 50121-3-2:2000, table 9.1
External components required; see fig. 4
Corresponds to EN 50155:1995, waveform D
Corresponds to EN 50155:1995, waveform G
Electromagnetic Emissions
PMM 8000 PLUS: Peak, conducted Vi+, QP
+ AV, 2006-10-01, 2x 1.1 mH,
dBµV
110IMX35D05D12,
U
=110 V,
U
=U =5 V,
I
=U =1.4 A,
U
=U =12
V
I
=U =0.6 A
i
o1 o4
o1 o4
o2 o3
o2 o3
JM072
80
EN 55022 A QP
EN 55022 A AV
60
40
20
0
0.2
0.5
1
2
5
10
20 MHz
Fig. 14
Typ. disturbances (quasi-peak and average) at the input
according to EN 55011/22, measured at Vi nom and Io nom
(110IMX35D05D12-8 with input choke 2× 1.1 mH).
BCD20009-G Rev AC, 06-May-2013
Page 11 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Conducted emission according to EN 55011/55022, class A,
can be achieved by adding an external common mode choke
and an additional ceramic capacitor. The filter components
should be placed as close as possible to the input of the
converter; see figure 15.
07114c
Vi+
Li
+
Converter
Ci
Table 12: Input filter components
–
Vi–
Model
Common mode choke
Ceramic cap
L1 (Murata)
C1
20IMX35
40IMX35
70IMX35
110IMX35
70 µH / 3.6 A, PLH10AN7003R6P2
4.7 µF / 50 V
160 µH / 2.1 A, PLH10AN1612R1P2 2.2 µF / 100 V
Fig. 15
External filter circuitry
290 µH / 1.2A, PLH10AN2911R2P2
370 µH / 1.0A, PLH10AN3711R0P2
1 µF / 200 V
1 µF / 200 V
Immunity to Environmental Conditions
Table 13: Mechanical and climatic stress
Test method
Standard
Test conditions
Status
Cab
Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
Temperature:
Relative humidity:
Duration:
40 ±2 °C
Converter
not
operating
93 +2/-3
%
56 days
--
Salt mist test
EN 50155:2007
sect. 12.2.10
class ST3 2
Temperature:
Duration:
35±2 °C
48 h
Converter
not
operating
sodium chloride
(NaCl) solution 2
Eb
Fc
Bump
IEC/EN 60068-2-29
Acceleration amplitude:
Bump duration:
25 gn = 245 m/s2
6 ms
Converter
operating
(half-sinusoidal)
MIL-STD-810D section 516.3
Number of bumps:
6000 (1000 in each direction)
Vibration
(sinusoidal)
IEC/EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.35 mm (10 – 60 Hz)
5 gn = 49 m/s2 (60 - 2000 Hz)
10 – 2000 Hz
Converter
operating
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h in each axis)
Fh
Random vibration
broad-band
(digital control) and
guidance
IEC/EN 60068-2-64
Acceleration spectral density: 0.05 gn2/Hz
Converter
operating
Frequency band:
Acceleration magnitude:
Test duration:
8 – 500 Hz
4.9 grms
1.5 h (0.5 h in each axis)
Ea
--
Shock
IEC/EN 60068-2-27
Acceleration amplitude:
Bump duration:
50 gn = 490 m/s2
Converter
operating
(half-sinusoidal)
MIL-STD-810D section 516.3
11 ms
Number of bumps:
18 (3 in each direction)
Shock
EN 50155:2007 sect. 12.2.11
EN 61373 sect. 10, class B,
body mounted1
Acceleration amplitude:
Bump duration:
Number of bumps:
5.1 gn
30 ms
18 (3 in each direction)
Converter
operating
--
Simulated long life EN 50155:2007 sect. 12.2.11
Acceleration spectral density: 0.02 gn2/Hz
Converter
operating
testing at
EN 61373 sect. 8 and 9,
Frequency band:
Acceleration magnitude:
Test duration:
5 – 150 Hz
increased random
vibration levels
Body mounted1
0.8 gn rms
15 h (5 h in each axis)
1
Body mounted = chassis of a railway coach
Models without option Z
2
BCD20009-G Rev AC, 06-May-2013
Page 12 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Temperatures
Table 14: Temperature specifications, valid for air pressure of 800 to 1200 hPa (800 to 1200 mbar)
Temperature
-8
Unit
Characteristics
Conditions
min
–40 3
–40 3
–40 3
–55
max
85 1
TA
TC
Ambient temperature
Operational1
°C
Case temperature (without opt. Z) 2
105 2
110 2
105
TC Z Component temp. with opt. Z 2
TS
Storage temperature
Non operational
1
See Thermal Considerations
2
3
Temperature measurment point; see Mechanical Data
Start-up at – 55 °C
Reliability
Table 15: MTBF at nom. load
Model
Ground benign
40 °C
Ground fixed
Ground mobile Device hours1
50 °C
Unit
40 °C
70 °C
86 000
294 000
40IMX35 (MIL-HDBK-217F, TC)
110IMX35 (Bellcore, TA)
336 000
141 000
529 000
110 000
144 000
396 000
h
1445 000
1
The device hours are based upon the IMX35 series field failure rate recorded between 2000 and 2005
Mechanical Data
Dimensions in mm.
European
Projection
4 threads M3
09121c
09123c
0.8 x 0.8
TC Z
0.8 x 0.8
thread M3
Bottom
view
Bottom
view
TC Z
63.5
72.8
63.5
69.6
76.2
TC Z
TC
Cores
Fig. 17
Fig. 16
Case IMX35 (Standard)
Material: Zinc; weight: approx. 67 g
Case IMX35 open frame (option Z)
Weight: approx. 43 g
BCD20009-G Rev AC, 06-May-2013
Page 13 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Installation Instructions
Safety and Installation Instructions
Pin allocation
Installation of the converters must strictly follow the national
safety regulations in compliance with the enclosure, mounting,
creepage, clearance, casualty, markings, and segregation
requirements of the end-use application.
Table 16: Pin allocation
Pin No.
Quadruple
output
Connection to the system shall be made via a printed circuit
board with hole diameters of 1.5 mm for the pins.
1
2
PUL
Vi–
The converters should be connected to a secondary circuit.
Do not open the converter.
3
n.c.
Ensure that a converter failure (e.g., by an internal short-
circuit) does not result in a hazardous condition.
4
Vi+
5
Trim or Trim1
W
6
Input Fuse
7
Ref
To prevent excessive current flowing through the input supply
line in case of a short-circuit in the converter, an external fuse
should be installed in the non-earthed input line. We
recommend a fast acting fuse specified in table 3.
8
SD or i
Vo3–
Vo3+
Vo2+
Vo2–
Vo1–
Vo1+
Vo4+
Vo4–
n.c.
11
12
13
14
15
16
17
18
19
Standards and Approvals
All converters are safety-approved to IEC/EN 60950-1 and
UL/CSA 60950-1 2nd Ed.
The converters have been evaluated for:
• Building-in
• Basic insulation input to output, based on their maximum
input voltage
• Pollution degree 2 (not option Z)
• Connecting the input to a secondary circuit, which is
subject to a maximum transient rating of 1500 V.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
09122a
CB scheme is available.
11
12
13
14
15
16
17
18
19
1
Railway Applications
To comply with Railway standards, all components are coated
with a protective lacquer (except for option Z).
2
3
4
5
6
7
8
Bottom
view
Protection Degree
The protection degree is IP 30 (not for option Z).
Cleaning Liquids
In order to avoid possible damage, any penetration of cleaning
fluids should be prevented, since the converters are not
hermetically sealed.
Fig. 18
Footprint. The holes in the PCB should have a diameter of
1.5 mm.
However, open-frame models (option Z) leave the factory
unlacquered; they may be lacquered by the customer, for
instance together with the mother board. Cleaning liquids are
not permitted – except washing at room temperature with
isopropyl alcohol and de-inonized/destilled water (1 : 1).
Note: Cleaning liquids may damage the adhesive joints of the
ferrite cores.
BCD20009-G Rev AC, 06-May-2013
Page 14 of 15
IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Table 17: Electric strength test voltages
Characteristic
Input to
Input to
Outputs to
case
Between
outputs
Unit
(outputs+case)
20/40IMX35 1
(outputs+case)
70/110IMX35 1
1
all models
all models
Factory test >1 s
1.2
1.5
1.8
2.5
0.5
0.7
0.152
0.22
kVAC
kVDC
Equivalent DC voltage
Insulation resistance
at 500 VDC
>100
>100
–
–
MΩ
1
For open-frame models (option Z), only the insulation input to outputs is tested.
The test voltage between outputs is not applied as routine test.
2
Isolation
60950 and should not be repeated in the field. Power-One will
not honor any warranty claims resulting from electric strength
field tests.
The electric strength test is performed in the factory as a
routine test in accordance with EN 50116, EN 60950, and UL
should be connected to Vi– to enable the output (active low
logic, fail safe).
Options
i: Inhibit (Negative Shutdown Logic)
Voltage at pin 8:
The outputs of the converter may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied to the inhibit
pin 8. If the inhibit function is not required the inhibit (pin 8)
Converter operating:
Converter disabled:
–10 V to 0.8 V
2.4 V to 20 V or left
open-circuit
Z: Open Frame
06138a
For applications, where the protection by a housing is not
necessary or in the case that the motherboard should be
lacquered after fitting the converter.
4
8
2
Vi+
i
Note: The converters shall not be exposed to cleaning processes,
as this will damage the glue of the ferrite cores.
Vi–
G: RoHS-6
Fig. 19
If the inhibit pin is not used, connect it to Vi–.
Converters with a type designation ending by G are RoHS-
compliant for all six substances.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
BCD20009-G Rev AC, 06-May-2013
Page 15 of 15
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