110IMY35D15D15-9Z [BEL]
DC-DC Regulated Power Supply Module, 4 Output, 35W, Hybrid;
| 型号： | 110IMY35D15D15-9Z |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 4 Output, 35W, Hybrid |
| 文件： | 总15页 (文件大小：352K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Board Mountable
DC-DC Converters
IMY 35 Series
35 Watt DC-DC Converters
IMY 35 Series
Input to output electric strength test up to 2.5 kV DC
Input voltage: 60...150 V DC
2, 3 and 4 outputs
Configurable output voltages from 5 to 60 V DC
• Extremely wide input voltage ranges
• Electrical isolation, 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 input
10.5
0.41"
63.5
76.2
2.5"
3"
• Output voltages adjustable with flexible load distribu-
tion
• Frequency synchronisation
• Outputs no-load, overload and short-circuit proof
• Operating ambient temperature up to –40...85°C
• Thermal protection
• 3"× 2,5" case with 10.5 mm profile or 8.9 mm open
frame
• Double or reinforced insulation
8.9
0.35"
47.8
1.88"
72.8
2.87"
Safety according to IEC/EN 60950, UL 1950
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. For extremely high vibration environments the case has
holes for screw mounting. Various options as e.g. extended
temperature range –40...85°C or an alternative pinout pro-
vide a high level of application specific engineering and de-
sign-in flexibility.
The IMY 35 series of board mountable 35 Watt DC-DC con-
verters has been designed according to the latest industry
requirements and standards. The converters are particu-
larly suitable for use in mobile or stationary applications in
transport, railways, industry, or telecommunication where
variable input voltages or high transient voltages are preva-
lent.
With a total input voltage range from 60...150 V, the units
are available with double and quadruple outputs, electri-
cally isolated, from 5 V up to 60 V externally adjustable and
with flexible load distribution. A shut down input allows re-
mote 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 in-
ternational safety standards IEC/EN 60950, UL 1950, CAN/
CSA C22.2 No.950-95. LGA, UL and cUL approvals are in
progress.
Table of Contents
Page
Page
Auxiliary Functions ........................................................... 9
Electromagnetic Compatibility (EMC) ............................ 10
Immunity to Environmental Conditions .......................... 11
Mechanical Data ............................................................ 12
Safety and Installation Instructions ................................ 13
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
Edition 2/5.2000
1/15
Board Mountable
DC-DC Converters
IMY 35 Series
Type Survey and Key Data
Table 1: Type survey
Output 1
Output 2
Output 3
Output 4
Input voltage Eff. Type
Ui min...Ui max htyp designation
Trim
Opt.
Uo nom Io nom Uo nom Io nom Uo nom Io nom Uo nom Io nom
[V DC]
5
[A]
2.8
1.4
1.2
1.4
0.7
0.6
[V DC]
5
[A]
2.8
1.4
1.2
1.4
0.7
0.6
[V DC]
[A]
-
[V DC]
[A]
-
[V DC]
60...150
60...150
60...150
60...150
60...150
60...150
[%]
84
86
86
87
89
89
-
-
-
-
110 IMY 35-05-05-9
110 IMY 35-12-12-9
110 IMY 35-15-15-9
primary -8, Z, i
primary -8, Z, i
primary -8, Z, i
12
15
5
12
15
5
-
-
-
-
-
-
5
1.4
0.7
0.6
5
1.4
0.7
0.6
110 IMY 35 D05D05-9 primary -8, Z, i
110 IMY 35 D12D12-9 primary -8, Z, i
110 IMY 35 D15D15-9 primary -8, Z, i
12
15
12
15
12
15
12
15
Trim
The Trim input on the primary side (Trim, pin 5) influences all outputs.
Type Key
Dual output units
110 IMY 35 - 12 - 12 -9 i Z
Input voltage range Ui
60...150 V DC .......................................... 110
Series ...................................................................... IMY 35
Output 1 of double types .................................... 05, 12, 15
Output 2 of double types .................................... 05, 12, 15
Operating ambient temperature range TA
–40...71°C (standard) ................................. -9
–40...85°C (option) ..................................... -8
Options:
Inhibit ............................................................ i
Open frame .................................................. Z
Quad output units
110 IMY 35 D05 D05 -9 i Z
Input voltage range Ui
60...150 V DC .......................................... 110
Series ...................................................................... IMY 35
Output 1 and 4 of quad types..................... D05, D12, D15
Output 2 and 3 of quad types..................... D05, D12, D15
Operating ambient temperature range TA
–40...71°C (standard) ................................. -9
–40...85°C (option) ..................................... -8
Options:
Inhibit ............................................................ i
Open frame .................................................. Z
Edition 2/5.2000
2/15
Board Mountable
DC-DC Converters
IMY 35 Series
Functional Description
The IMY 35 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 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 80...105% of Uo nom is possible via
Trim input on the primary side (See: Block diagram, dual
output types.)
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.)
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 Uo nom, the entire converter will shut
down and automatically restart in short intervals.
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.
Overtemperature protection is provided for each power
train which will shut down the converter in excessive over-
load conditions with automatic restart approximately in
short intervals.
03100
Vi+
4
17
15
Vo1+
1
5
6
7
8
2
3
PUL
Vo1—
Trim/n.c.
W
PWM
Ref
18
12
Trim1/n.c.
n.c.
SD
Vi—
n.c.
13 Vo2+
14
11
n.c.
Vo2—
19
16
n.c.
n.c.
Fig. 1
Block diagram 1, double output types
03098
Vi+
4
16
Vo1+
1
5
6
7
8
2
3
PUL
Trim
15
Vo1—
17 Vo4+
18 Vo4—
13 Vo2+
PWM
W
Ref
SD
Vi—
n.c.
14
12
Vo2—
Vo3+
11 Vo3—
19 n.c.
Fig. 2
Block diagram 3, quadruple output types
Edition 2/5.2000
3/15
Board Mountable
DC-DC Converters
IMY 35 Series
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
110 IMY
Characteristics
Conditions
min
typ
max
150
Unit
Ui
Input voltage range 1
TA min...TAmax
Io = 0...Io nom
60 2
V DC
Ui nom
Ui sur
tstart up
Nominal input voltage
110
Repetitive surge voltage
Abs. max input (3 s)
168
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
5
ms
mA
10
20
10
20
10
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
0.35
µF
USD
Shut down voltage
–10...0.7
V DC
RSD
ISD
Shut down input resistance For current calculations
approx. 10
kΩ
Input current if unit
shut down
Ui min...Ui max
1
mA
fs
Switching frequency
Ui min...Ui max, Io = 0...Io nom
EN 55022 5
approx. 220
B
kHz
ui RFI
Input RFI level, conducted
1 Ui min will not be as stated if Uo is increased above Uo nom by use of Trim input. If the output voltage is set to a higher value,
Ui min will be proportionately increased.
2 Input undervoltage lock-out at typ. 90% of Ui min
.
3 Measured with resistive and max. admissible capacitive load.
4 Source impedance according to prETS 300132-2, version 4.3.
5 Measured with a lead length of 0.1 m, leads twisted.
Edition 2/5.2000
4/15
Board Mountable
DC-DC Converters
IMY 35 Series
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
Table 4: Built-in transient voltage suppressor
I [A]
Type
Breakdown
voltage
VBr nom [V]
Peak power
at 1 ms
Peak pulse
current
Ipp [A]
4
3
2
Pp [W]
110 IMY 35
167
600
0.5
1
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.
t [µs]
0
20
50 60 70 80 90 100
10
30 40
Fig. 3
Typical inrush current at Ui nom, Po nom versus time. Source
impedance according to prETS 300132-2, version 4.3 at
Ui nom
.
Table 5: Components for external circuitry for IEC/EN
61000-4-5, level 2 or ETR 283 (19Pfl1) compliance.
Uo
trise
04008
Uo nom
Type
Inductor (L)
Capacitor (C)
110 IMY 35
L = 560 µH/0.84 A
OCR = 0.38 Ω
2 x 100 µF/200 V
t
04063
tstart up
L
Vi+
Fig. 4
+
Converter start-up and rise time
C
Vi–
Reverse Polarity Protection
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.
Fig. 5
Example for external circuitry to comply with IEC/EN
61000-4-5 or ETR 283 (19Pfl1).
22
Table 3: Recommended external fuses
04052
Converter type
Fuse type
110 IMY 35
F2.0A
11.5
Fig. 6
23.8
Dimensions of inductor L for 110 IMY 35 types
(e.g. Coil Craft, PCH-45 series).
Edition 2/5.2000
5/15
Board Mountable
DC-DC Converters
IMY 35 Series
Electrical Output Data
General conditions:
– TA = 25°C, unless TC is specified
– Shutdown pin left open circuit (not connected)
– R input not connected
Table 6: Output data for double output power trains.
Output
2 × 5 V
2 × 12 V
2 × 15 V
min typ max
Characteristics
Conditions
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
2 × 1.4
2 × 0.70
2.0
2 × 0.60
1.6
A
IoL
Current limit 1
3.7
DUo U Line regulation
DUo 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
1
115
130
470
±400
1
115
130
330
±450
1
%
Co ext Admissible capacitive load
µF
mV
ms
uo d
td
Dynamic
load
Voltage deviat. Ui nom
o nom ↔ 1/
Io nom
I
2
Recovery time
regulation
aUo
Temperature coefficient
DUo/DTC
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.
Edition 2/5.2000
6/15
Board Mountable
DC-DC Converters
IMY 35 Series
Thermal Considerations
Output Overvoltage Protection
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.
The outputs of the converter are protected against overvolt-
ages by a second control loop. In the event of an overvolt-
age on one of the outputs the unit will shut down and
attempt to restart in short intervals. The main purpose of
this feature is to protect against possible overvoltages
which could occur due to a failure in the feedback control
circuit. The overvoltage protection is not designed to with-
stand externally applied overvoltages.
Typical Performance Curves
General conditions:
– TA = 25oC, unless TC is specified.
– Shut down pin left open circuit.
– Trim input not connected.
Uo [V]
05019
5.5
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.
5.0
4.5
4.0
3.5
3.0
Short Circuit Behaviour
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).
0
2
3
4
5
Io [A]
1
Fig. 7
Uo versus Io (typ) of units with Uo = 5.1 V.
Overtemperature Protection
The converters individual power trains are protected
against possible overheating by means of an internal tem-
perature monitoring circuit. It shuts down the unit above the
internal temperature limit and attempts to automatically re-
start. This feature prevents from excessive internal tem-
perature building up which could occur under heavy over-
load conditions.
Uo [V]
05020
13
12
11
10
9
Connection in Series
The outputs of one or several single or double output power
trains may be connected in series without any precautions.
8
7
Io total [A]
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
0
Connection in Parallel
The outputs of one or several double output power trains
(except 3.3 or 5.1 V types) with equal nominal output volt-
age can be connected in parallel. Approximate current
sharing between 2 or several power trains is ensured by
their load dependent output characteristic.
Fig. 8
Uo1/2 versus Io1/2 of double output power trains
(i.e. 2 × 12 V). See: Block diagram 1
Edition 2/5.2000
7/15
Board Mountable
DC-DC Converters
IMY 35 Series
Uo4 [V]
13.5
Uo1, Uo2 [V]
05164
05039
14
13
12
11
10
13.0
Io4 = 0.035 A
12.5
Uo2
Uo1
12.0
Io4 = 0.35 A
11.5
Io1
Io1 nom
11.0
[%]
0.06
0.20
0.30
0.50 0.60 0.70 Io1 [A]
0
25
50
75
100
125
150
0.10
0.40
Fig. 9
Fig. 10
Flexible load distribution on power train 1 of
IMY 35 D12D12-9 (4 ¥ 12 V) with load variation from
0...150% of Po1 nom on output 1 (Vo1). Output 2 (Vo4)
Cross load regulation Uo4 versus Io1 (typ) for various Io4 for
Vo1, Vo4 on power train 1. See: Block diagram dual out-
put types. (IMY 35 D12D12-9)
loaded with 50% of Po4 nom
.
h [%]
05152
h [%]
90
05153
Ui min
Ui nom
90
Ui min
80
70
60
80
Ui nom
70
60
Po
100 Po total
[%]
25
50
75
Po
100 Po total
[%]
25
50
75
Fig. 11
Efficiency versus input voltage and load. Typical values
IMY 35 D12D12-9
Fig. 12
Efficiency versus input voltage and load. Typical values
IMY 35 D12D12-9
05041
Uo [%]
overload short circuit condition
100
switch-off
70
8.5
t [ms]
60.5
60.5
Fig. 13
Overload switch off (hiccup mode), typical values.
Edition 2/5.2000
8/15
Board Mountable
DC-DC Converters
IMY 35 Series
Auxiliary Functions
Shut Down Function
a) Adjustment by means of an external resistor Rext
:
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.
Adjustment of the output voltage by means of an external
resistor Rext is possible within the range of 100...105% of
Uo nom. Rext should be connected between the Trim pin 5
and Vi–. Connection of Rext to Vi+ may damage the con-
verter. The following table indicates suitable resistor val-
ues for typical output voltages under nominal conditions
(Ui nom, Io = 0.5 Io nom).
Converter operating:
2.0...20 V
Converter shut down: –10...0.7 V
Programmable Input Undervoltage Lockout PUL
Table 9: Rext1 for Uo > Uo nom
approximate values (Ui nom, Io = 0.5 Io nom
;
A special feature of these units is the accurate undervoltage
lockout protection which protects the units (and system)
from large currents caused by operation at low voltages.
This ensures easier start-up in distributed power systems.
)
Uo [% Uo nom
]
R
ext [kΩ]
105...108 (107 typically)
0
105
104
103
102
101
100
3.3
6.2
10
18
39
∞
Table 7: Turn on and turn off voltage
Type
Trigger level
Hysteresis
Units
V
110 IMY 35
40...42.5
≤1
See: Electrical input data for a description of the turn on
turn off voltage levels of the various types.
b) Adjustment by means of an external voltage source Uext
.
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.
For external output voltage adjustment in the range
80...105% of Uo nom a (0...20 V) source Uext is required,
connected to the Trim pin 5 and Vi–. The table below indi-
cates typical Uo versus Uext 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.
Table 8: Typical values for Rext and the respective lockout
voltage for input voltage.
Rext [kΩ]
Umin [V]
22
27
10
0
Table 10: Uo versus Uext for Uo = 80...105% Uo nom
typical values (Ui nom, Io = 0.5 Io nom
;
26
)
30
Uo [% Uo nom
]
Uext [V]
∞
≤15.5
≥105
102
100
95
85
80
0
1.8
2.5
4.25
8.25
10.2
Adjustable Output Voltage
As a standard feature, the IMY 35 offer adjustable output
voltages in the range 80...105% of Uo nom by use of a con-
trol input pin. The Trim control is offered either on primary or
secondary side of the converter depending on type.
The quadruple output units are shown in block diagram 3.
All types with equal output voltage have the Trim function
connected to pin 5 referenced to the primary side which in-
fluences all outputs simultaneously. The schematics are
shown in fig. 16, the values of the adjust resistor Rext in Ta-
ble 10 and the external voltage source in Table 11.
For the dual output types refer to the block diagram 1.
The units IMY 35-12-12 and IMY 35-15-15 exhibit a Trim
input connected to pin 5. This input influences both outputs
simultaneously. Both power trains have passive trans-
former feedback and the Trim input (pin 5) is referenced to
the primary side. Fig. 16 shows the circuit topology. Adjust-
ment of the output voltage is possible by means of either an
external resistor Rext in the range of 100...105% of Uo nom or
an external voltage source in the range of 80...105% of
Synchronisation (W)
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
480...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.
Uo nom
.
06137
Vi+
Vo1+
Vo1–
Vo2+
17
4
5
Trim
15
13
+
Reference (Ref)
Control
circuit
Uref = 2.5 V
Uext
Rext
Vi–
This option provides a stable 5 V (±0.2 V) reference signal
on pin Ref. It is protected by a 1.33 kΩ resistor. This may be
used also in conjunction with the Trim input pin 5 (primary
side) as a limited external voltage reference. We recom-
mend to connect a filter capacitor (0.1 µF) between Ref and
Vi–, if Vref is used.
–
Vo2–
2
11
Fig. 14
Output voltage control for double output units by means of
the Trim input on the primary side.
Edition 2/5.2000
9/15
Board Mountable
DC-DC Converters
IMY 35 Series
Electromagnetic Compatibility (EMC)
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 11: 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
yes
A
61000-4-3
ENV 50204
PM, 50% duty
cycle, 200 Hz
resp. frequ.
900 MHz
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
3
+i/–i
2000 Vp
10 Vrms
1.2/50 µs
2 Ω
5 pos. and 5 neg.
impulses per
coupling mode
Conducted
disturbancies
IEC/EN
61000-4-6
+i/–i
+i/–i
AM modulated
50 Ω
0.15...80 MHz
yes
yes
A
B
(140 dBµV) 80%, 1 kHz
150 Ω
Transient
ETR 283
(19 Pfl 1)
150 Vp 0.1/0.3 ms
limited to
<100 A
3 positive
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. possibe.
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. 15
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.
(IMY 35-D12D12-9)
Edition 2/5.2000
10/15
Board Mountable
DC-DC Converters
IMY 35 Series
CISPR 22/EN 55022, Level B Radiated
Electromagnetic emission requirements according to
EN 55022, class B (radiated emmission) can be achieved
by adding an external common mode choke, see: Input
Data. The filter components should be placed as close as
possible to the input of the converter.
07114
Table 12: Input filter components for EN 55022, level B,
radiated.
Type
Current compensated choke
110 IMY 35
Murata Part No.:PLH10A1112R6P02
L
V+
Vi+
Module
V–
Vi–
Fig. 16
Example for external circuitry to comply with CISPR22/EN
55022, level B, radiated
Immunity to Environmental Conditions
Table 13: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
-9
Option -8 3
Characteristics
Conditions
Operational 2
min
–40
–40
–55
max
71
min
–40
–40
–55
max
85
Unit
TA
TC
TS
Ambient temperature 1
°C
Case temperature
Storage temperature 1
95
105
105
Non operational
100
1 MIL-STD-810D section 501.2 and 502.2
2 See: Thermal Considerations
3 Start up at –55°C
Table 14: MTBF and device hours
MTBF
Ground Benign
Ground Fixed
Ground Mobile
MTBF acc. to MIL-HDBK-217F
110 IMY 35
TC = 40°C
TC = 40°C
TC = 70°C
TC = 50°C
h
h
h
h
Table 15: Mechanical stress
Test Method
Standard
Test Conditions
Status
Ca
Ea
Eb
Fc
Damp heat
steady state
IEC/DIN IEC 60068-2-3
MIL-STD-810D section 507.2 Relative humidity:
Duration:
Temperature:
40 ±2 °C
93 +2/-3
56 days
Unit not
operating
%
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
(sinusoidal)
IEC/EN/DIN 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) operating
10...2000 Hz
Unit
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h each axis)
Fda Random vibration IEC 60068-2-35
Acceleration spectral density: 0.05 gn2/Hz
Unit
wide band
reproducibility
high
Frequency band:
Acceleration magnitude:
Test duration:
20...500 Hz
4.9 gn rms
3 h (1 h each axis)
operating
Kb
Salt mist, cyclic
(sodium chloride
NaCl solution)
IEC/EN/DIN IEC 60068-2-52
Concentration:
Duration:
Storage:
Storage duration:
Number of cycles:
5% (30°C)
Unit not
operating
2 h per cycle
40°C, 93% rel. humidity
22 h per cycle
3
Edition 2/5.2000
11/15
Board Mountable
DC-DC Converters
IMY 35 Series
Mechanical Data
Dimensions in mm. Tolerances ±0.3 mm unless otherwise indicated.
European
Projection
09121
0.8 x 0.8
thread M3
63.5
69.6
76.2
Fig. 17
Case IMY 35 (Standard)
Weight: 67 g
09123
0.8 x 0.8
63.5
72.8
Fig. 18
Case IMY 35 open frame (option Z)
Weight: 43 g
Edition 2/5.2000
12/15
Board Mountable
DC-DC Converters
IMY 35 Series
Safety and Installation Instructions
Table 17: Pin allocation
Installation Instructions
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.
Pin No.
Double
output
Quadruple
output
1
2
PUL
PUL
Vi–
Vi–
Connection to the system shall be made via a printed circuit
board with hole diameters of 1.5 mm for the pins.
3
n.c.
n.c.
4
Vi+
Vi+
The units should be connected to a secondary circuit.
5
Trim or n.c.
W
Trim
W
Check for hazardous voltages before altering any connec-
tions.
6
Do not open the module.
7
Ref
Ref
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.
8
SD or i
Vo2–
n.c.
SD or i
Vo3–
Vo3+
Vo2+
Vo2–
Vo1–
Vo1+
Vo4+
Vo4–
n.c.
11
12
13
14
15
16
17
18
19
Input Fuse
Vo2+
n.c.
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 F2.0A.
Vo1–
n.c.
Vo1+
Trim1 or n.c.
n.c.
Standards and approvals
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.
09122
The units have been evaluated for:
• Building in
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
• Reinforced 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 2500 V
Bottom
view
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.
Fig. 19
Pin allocation
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.
Protection Degree
The protection degree of the DC-DC converters is IP 30
(not for option Z).
Cleaning Agents
Table 16: Electric strength test voltages
In order to avoid possible damage, any penetration of
cleaning fluids should be prevented, since the power sup-
plies are not hermetically sealed.
Characteristic
Input to output
IMY 35
Output to
output
Unit
Electric strength
test voltage 1 s
3.0
2.5
0.1
0.5
-
kVrms
kV DC
MΩ
Insulation resistance
at 500 V DC
>100
Partial discharge
extinction voltage
Consult factory
-
kV
Edition 2/5.2000
13/15
Board Mountable
DC-DC Converters
IMY 35 Series
Safety of operator accessible output circuit
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 18: Insulation concept leading to an SELV output circuit
Conditions Front end
DC-DC converter
Type Measures to achieve the
Result
Supply
voltage
Minimum required grade
of isolation, to be provided DC output safety status of the
Maximum Minimum required
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
Operational (i.e. there is
≤150 V
Primary
IMY 35 Double or reinforced
insulation, based on
150 V AC and DC (pro-
vided by the DC-DC
converter)
SELV circuit
≤150 V AC no need for electrical iso-
lation between the mains
supply voltage and the
DC-DC converter input
voltage)
Mains
≤250 V AC
Basic
≤60 V
Earthed SELV circuit 2 IMY 35 Operational insulation
(provided by the DC-DC
converter)
≤150 V
IMY 35 Supplementary insulation SELV circuit
based on 250 V AC and
double or reinforced
insulation, based on the
maximum rated output
voltage from the front end
(provided by the DC-DC
converter)
Double or reinforced
≤60 V
SELV circuit
TNV-2 circuit
IMY 35 Operational insulation
(provided by the DC-DC
converter)
≤120 V
≤150 V
IMY 35 Double or reinforced
insulation, based on the
maximum rated output
voltage from the front end
(provided by the DC-DC
converter)
Double or reinforced
insulated earthed or
unearthed hazardous
voltage secondary
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.
10004
Fuse
+
~
Mains
Suppressor
diode
AC-DC
front
DC-DC
con-
Battery
SELV
end
verter
–
~
Earth
connection
Earth
connection
Fig. 20
Schematic safety concept. Use fuse, suppressor diode
and earth connection as per table: Safety concept leading
to an SELV output circuit.
Edition 2/5.2000
14/15
Board Mountable
DC-DC Converters
IMY 35 Series
Description of Options
Table 19: Survey of options
Option
Function of option
Characteristic
-8
Z
i
Extended operational ambient temperature range
TA = –40...85°C
Open frame
Inhibit
All models are available without case
-
Option i
Inhibit
Option -8
Extended Temperature Range
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).
Extension of the temperature range from standard
–40...71°C to –40...85°C. In the upper temperature range
the output power derating below should be observed. The
modules will provide the specified ouptut power with free air
convection cooling.
Po/Po max
Converter operating:
Converter inhibited
–10 V...0.8 V
11047
1.2
or inhibit pin left open circuit: 2.4 V...Ui max
1.0
0.8
0.6
06138
4
8
2
Vi+
i
0.4
0.2
Vi–
0
–40
TA [°C]
–20
0
80
20
40
60
Fig. 22
Fig. 21
If the inhibit is not used the inhibit pin should be con-
Maximum allowed output power versus ambient tempera-
ture.
nected to Vi–
Edition 2/5.2000
15/15
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