110IMY70-12-0G [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 70W, Hybrid, ROHS COMPLIANT PACKAGE-19;
| 型号： | 110IMY70-12-0G |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 70W, Hybrid, ROHS COMPLIANT PACKAGE-19 |
| 文件： | 总15页 (文件大小：244K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Features
• RoHS lead-free-solder and lead-solder-exempted
products available
• Extremely wide input voltage ranges up to 150 VDC
• 1 or 2 outputs up to 48 V
• 1200 to 3000 VAC i/o electric strength test
• Electrical isolation between outputs
• Programmable input undervoltage lockout
• Shutdown/inhibit input
12.5
0.49"
63.5
2.5"
76.2
3"
• Adjustable output voltages with flexible load distribution
• Sense lines and current share option
• External frequency synchronization
• Output(s) no-load, overload, and short-circuit proof
• Operating ambient temperature from –40 to 95 °C
• Thermal protection
• Metallic case with 12.5 mm profile or open frame with
9.75 mm
• Basic insulation: IMX models
• Class I equipment with reinforced insulation:IMYmodels
9.75
0.38"
Safety-approved to IEC/EN 60950-1 and UL/CSA 60950-1
2nd Edition. CE mark for 110IMY70.
47.8
1.88"
72.7
2.86"
Description
safety standards IEC/EN/UL 60950-1 2nd Edition. The con-
verters 24IMX70 and 40IMX70 exhibit basic insulation for the
specified input voltage, the converters 110IMY70 have
reinforced insulation.
The IMX/IMY70 Series of board-mountable 70 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.
The circuit is comprised of 2 planar magnetic devices. All
components are automatically assembled and securely
soldered onto a single PCB without any wire connection.
Magnetic feedback ensures maximum repeatability in the
control loop over all operating conditions and best reliability.
Careful consideration of possible thermal stress ensure the
absence of hot spots, such providing long life in environments,
where temperature cycles are present. The thermal design
without using any potting material allows operation up to an
ambient temperature of 65 °C in free air and up to 95 °C with
forced cooling. For extremely high vibration environments the
case has holes for screw mounting.
Covering a total input voltage range from 14.4 V up to 150 V
with 3 different models, the converters are available with one
or two electrically isolated outputs from 5 V to 48 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 according to the international
Table of Contents
Page
Page
Description ............................................................................. 1
Model Selection ..................................................................... 2
Functional Description ........................................................... 3
Electrical Input Data ............................................................... 4
Electrical Output Data ............................................................ 6
Auxiliary Functions ............................................................... 10
Electromagnetic Compatibility (EMC) .................................. 11
Immunity to Environmental Conditions ................................ 12
Mechanical Data .................................................................. 13
Safety and Installation Instructions ...................................... 14
Options................................................................................. 15
BCD.00002 Rev AB, 2-Mar-2011
Page 1 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Model Selection
Table 1: Model Selection
Output 1
Output 2
Input voltage
Effic. η1
min. typ.
Model
Adjust
Opt.
Vo nom
Io nom
Vo nom
Io nom
Vi min
Vi max
[V]
[A]
[V]
[A]
[V]
[V]
[%]
[%]
5.1
5.1
5.1
10
10
10
-
-
-
-
-
-
14.4
25
50
36
75
150
87
87
87
89
89
89
24IMX70-05-0G3
40IMX70-05-0G 3
110IMY70-05-0G
secondary
secondary
secondary2
secondary2
i, T, Z
i, T, Z
i, Z
12
12
12
5.8
5.8
5.8
-
-
-
-
-
-
14.4
25
50
36
75
150
88
88
88
90
90
90
24IMX70-12-0G3
40IMX70-12-0G 3
110IMY70-12-0G 3
15
15
15
2.0
2.0
2.0
15
15
15
2.0
2.0
2.0
14.4
25
50
36
75
150
85
86
85
87
88
87
24IMX70-15-15-0G3
40IMX70-15-15-0G3
110IMY70-15-15-0G 3
24
24
24
1.3
1.3
1.3
24
24
24
1.3
1.3
1.3
14.4
25
50
36
75
150
87
89
89
89
91
91
24IMX70-24-24-0G3
40IMX70-24-24-0G3
110IMY70-24-24-0G
i, Z
1
2
3
Efficiency at TA = 25 °C, Vi nom, Io nom
The R input (pin 19) on the secondary side influences both outputs simultaneously.
Contact Power-One for lead times and availability.
Part Number Description
110 IMY 70 - 24 - 24 - 0 i Z G
Input voltage range Vi
14.4 to 36 VDC ........................................... 24
25 to 75 VDC .............................................. 40
50 to 150 VDC .......................................... 110
Series .......................................................... IMX70, IMY70
Output voltage of output 1............................ 05, 12, 15, 24
Output voltage of output 2............................ 05, 12, 15, 24
Operating ambient temperature range
TA = –40 to 95 °C ....................................... -0
Options:
Inhibit ........................................................... -i
Current sharing .......................................... T 1
Open frame .................................................. Z
RoHS-compliant for all 6 substances ....... G 2
1
Single-output models only
G is always placed at the end of the part number
2
Product Marking
Converters without option Z are marked with the type
designation, input and output voltages and currents, applicable
safety approval and recognition marks, company logo, date
code, and serial no.
BCD.00002 Rev AB, 2-Mar-2011
Page 2 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
influencing the PWM via the magnetic feedback. The 2nd
output is tracking. The close magnetic coupling of the main
transformer and the main choke guarantee minor deviation of
both output voltages. Both outputs can be simultaneously
adjusted by the R input on the secondary side. The 2nd output
is monitored by an additional logic circuitry, which disables the
converter in the case of an overvoltage with automatic restart.
Functional Description
The IMX/IMY70 Series converters are comprised of a
feedback-controlled forward converter using current mode
pulse width modulation (PWM). The output voltage is
transferred to the primary side by magnetic feedback via a
pulse transformer. The switching frequency is fixed and can by
externally synchronized. The main transformer and the output
choke are designed in planar technology, which guarantees
excellent mechanical features and reproducibility of electric
properties.
Current limitation is provided by the primary circuit, limiting the
possible output power. The topology allows for a limited output
capacity; see Electrical Output Data.
An incorporated protection disables the converter in an
overtemperature condition. The converter automatically
recovers, after the temperature has dropped below the limit.
Single-output converters exhibit at the output a synchronous
rectifier and sense lines to ensure accurate output voltage
regulation. An auxiliary input R allows adjustment of the output
voltage. Proper parallel operation is possible, if the active
current sharing option T is fitted.
The input voltage is monitored, shutting down the converter in
an overvoltage condition. The minimum input voltage for
startup can be externally influenced, which helps to limit the
input current at low input voltage.
Double-output converters use Schottky diodes at both outputs.
The first output voltage is sensed and accurately regulated by
PUL
1
W
6
JM027
n.c.1
12
7
8
Ref
SD
T 3
11
Secondary
control
circuit
Primary
control circuit
R
19
Synchr. rect.
drive
Opt. i
13
16
17
S+
PTC
Vi+ 2
Vi+
5
4
Vo+
Input
filter
14
15
Vi–
2
3
Vo–
S–
Vi– 2
18
Cy
Cy
1
2
3
Not connected
Only connected for 24IMX models
Option T
Fig. 1
Block diagram of single-output models
PUL
1
W
6
JM026
n.c.1
n.c.1
17
18
PTC
7
8
Ref
SD
Secondary
control
circuit
Primary
control circuit
R
19
Vo2 monitor
Opt. i
Vo2+
13
Vi+ 2
Vi+
5
4
14 Vo2–
Input
filter
Vo1+
16
Vi–
2
3
Vi– 2
15 Vo1–
Cy
Cy
11
12
n.c.1
n.c.1
1
2
Not connected
Only connected for 24IMX models
Fig. 2
Block diagram of double-output models
BCD.00002 Rev AB, 2-Mar-2011
Page 3 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Electrical Input Data
General conditions:
TA = 25°C, shutdown and R pin left open-circuit, unless specified.
Table 2: Input data
Input
24IMX70
typ
40IMX70
typ
Unit
Characteristics
Conditions
min
max
min
max
Vi
Operating input voltage 1
TA min to TA max
Io = 0 to Io nom
14.4 2
36
25 3
75
VDC
Vi nom
Vi sur
tstart up
Nominal input voltage
24
(36) 48
Repetitive surge voltage
Abs. max input (3 s)
40.1
100
Converter
Switch on Worst case condition at
ms
––
start-up time
Vi min and full load
SD high
trise
Ii o
Rise time
Vi = 0 → Vi nom, Io nom
Io = 0, Vi min – Vi max
Io = 0 – Io nom
No-load input current
Reflected ripple current
Inrush peak current
Input capacitance
mA
mApp
A
Iirr
Iinr p
Ci
Vi = Vi nom
for surge calculation
Converter disabled
Converter operating
µF
––
VSD
Shutdown voltage
–0.7 to +0.7
– 0.7 to +0.7
V
2 to 20 (or open-circuit)
2 to 20 (or open-circuit)
––
ISD
Shutdown pin current
Input current at shutdown
Switching frequency
mA
––
Ii SD
Vi min – Vi max
fs
Vi min – Vi max, Io = 0 – Io nom
approx. 200
approx. 200
kHz
Input
110IMY70
Unit
Characteristics
Conditions
min
typ
(72) 110
250
max
Vi
Operating input voltage 1
TA min to TA max
Io = 0 to Io nom
50.4 4
137.55
VDC
Vi nom
Vi sur
tstart up
Nominal input voltage
Repetitive surge voltage
Abs. max input (2 s)
168
500
500
Converter
Switch on Worst case condition at
ms
––
start-up time
Vi min and full load
SD high
trise
Ii o
Rise time
Vi = 0 → Vi nom, Io nom
Io = 0, Vi min – Vi max
Io = 0 – Io nom
5
No-load input current
Reflected ripple current
Inrush peak current
Input capacitance
25
50
mA
mApp
A
Iirr
200
Iinr p
Ci
Vi = Vi nom
35
7.7
for surge calculation
Converter disabled
Converter operating
µF
––
VSD
Shutdown voltage
–0.7 to +0.7
V
2 to 20 (or open-circuit)
––
ISD
Shutdown pin current
Input current at shutdown
Switching frequency
–0.2
mA
––
Ii SD
Vi min – Vi max
2
fs
Vi min – Vi max, Io = 0 – Io nom
approx. 200
kHz
1
Vi min will not be as stated, if Vo is increased above Vo nom by use of R-input. If the output voltage is set to a higher value, Vi min will be
proportionately increased.
13.4 V for 100 ms
21.6 V for 100 ms
43.2 V for 100 ms
temporary operation up to 154 V
2
3
4
5
BCD.00002 Rev AB, 2-Mar-2011
Page 4 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Inrush Current
Input Transients 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.
When Vi exceeds 154 V, the converter is temporarily disabled.
Furthermore, a built-in suppressor diode provides effective
protection against higher input transients, which may be
generated for example by short-circuits across the input lines.
Table 4: Built-in transient voltage suppressor
A
JM028
Model
Breakdown
voltage
Peak power
at 1 ms
Peak pulse
current
40
VBr nom [V]
Pp [W]
Ipp [A]
30
20
24IMX70
40IMX70
110IMY70
10
176
600
2.5
t
μs
60
0
20
40
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.
Fig. 3
Inrush current at Vi nom, Po nom versus time (110IMY70-24-24-
8). Source impedance according to ETS 300132-2: L = 10
µH, R = 1.5 Ω.
Table 5: Components for external circuitry to comply with
IEC/EN 61000-4-5; see table 10
Vo
trise
04008b
Vo nom
Model
Inductor (L)
Capacitor (C)
24IMX70
40IMX70
110IMY70
t
--
150 µF / 200 V
tstartup
Fig. 4
Converter start-up and rise time
JM029
L
Vi+
Vi–
+
C
Reverse Polarity Protection and Fuse
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.
Fig. 5
Example for external circuitry to comply with IEC/EN 61000-
4-5; see table 10
Table 3: Recommended external fuses in the non-earthed
input line
Converter model Fuse type
24IMX70
40IMX70
110IMY70
Littlefuse 808, 2.5 A, 450 VDC, fast acting1
1
UL-listed (E67006)
BCD.00002 Rev AB, 2-Mar-2011
Page 5 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Electrical Output Data
General conditions:
– TA = 25 °C, unless TC is specified
– Shutdown pin not connected
– R-pin not connected
Table 6: Output data for single-output models
Output
5.1 V
12 V
typ
Unit
Characteristics
Conditions
min
typ
5.1
10
max
min
max
Vo
Output voltage
Vi nom, 0.5 Io nom
Vi min – Vi max
5.07
5.13
11.94
12.0
5.8
12.06
V
A
Io nom
Output current
24IMX
40IMX
10
5.8
5.8
110IMY
24IMX
10
IoL
Current limit1
Vi nom, TC = 25 °C
Vo = 93% Vo nom
40IMX
110IMY
ΔVo
Line/load regulation
Vi min – Vi max
(0.1 – 1) Io nom
,
±0.5
±0.5
%
2
3
Vo1/2
Output voltage noise
Vi min – Vi max
Io = Io nom
100
50
150
80
mVpp
Vo L
Co ext
Vo d
td
Output overvoltage limit.4
Admissible capacitive load
Min. load 1%
115
130
115
130
%
µF
Dynamic
load
Voltage deviat.
Recovery time
Vi nom
Io nom ↔ /
mV
ms
1
2
Io nom
regulation
αVo
Temperature coefficient
ΔVo/ΔTC
Vi min – Vi max
Io = (0.1 to 1) Io nom
±0.02
±0.02
%/K
1
The current limit is primary side controlled. In an overload condition the thermal protection may cause the converter to shut down
(automatic restart on cool-down).
BW = 20 MHz, measured with an external capacitor of 1 µF across each output pins.
Measured with a probe according to EN 61204
2
3
4
The overvoltage protection is located on the secondary side second regulation loop, not tracking with the output voltage adjust.
BCD.00002 Rev AB, 2-Mar-2011
Page 6 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Table 7: Output data for double-output models with both outputs connected in parallel
Output
2 × 15 V
2 × 24 V
Unit
Characteristics
Conditions
min
typ
max
min
typ
max
Vo
Output voltage
Vi nom, 0.5 Io nom
Vi min – Vi max
14.93
15.0
15.08
23.88
24.0
24.12
V
A
Io nom
Output current
24IMX
40IMX
2 × 2.0
2 × 1.3
2 × 2.0
2 × 2.0
2 × 1.3
2 × 1.3
3.15
110IMY
24IMX
IoL
Current limit1
Vi nom, TC = 25 °C
Vo = 93% Vo nom
40IMX
3.15
110IMY
3.15
ΔVo
Line/load regulation
Vi min – Vi max
(0.1 – 1) Io nom
,
±0.5
±0.5
%
2
3
Vo1/2
Output voltage noise
Vi min – Vi max
Io = Io nom
150
100
130
200
150
130
mVpp
Vo L
Output overvoltage limit.4
Admissible capacitive load
Min. load 1%
115
115
%
Co ext
Vo d
td
1000
µF
Dynamic
load
regulation
Voltage deviat.
Recovery time
Vi nom
Io nom ↔ /
±1500
1
mV
1
2
Io nom
ms
αVo
Temperature coefficient
ΔVo/ΔTC
Vi min – Vi max
Io = (0.1 to 1) Io nom
±0.02
±0.02
%/K
1
The current limit is primary side controlled. In an overload condition the thermal protection may cause the converter to shut down
(automatic restart on cool-down).
BW = 20 MHz, measured with an external capacitor of 1 µF across each output pins.
Measured with a probe according to EN 61204
2
3
4
The overvoltage protection is located on the secondary side second regulation loop, not tracking with the output voltage adjust.
BCD.00002 Rev AB, 2-Mar-2011
Page 7 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Thermal Considerations
Overtemperature Protection
Table 6a and 6b specify the admissible output power of a
converter, mounted on a printed circuit board, located in free
environment, exposed to an airflow with the ambient
temperature TA. This applies to continuous operation in the
input voltage range Vi min to Vi max; see table 2, Input data. The
case temperature TC (TC Z for 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.
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.
Vo [%]
overload short-circuit condition
100
However, the reached temperature TC depends heavily on the
conditions of operation, the distance and temperature of
surrounding components, the orientation of the converter and
the airflow, and the surfaces, thickness, and properties of the
printed circuit board.
switch-off
05041b
70
Caution: The case temperature TC (TC Z for option Z), measured
at the temperature measuring point (see Mechanical Data) may
under no circumstances exceed the specified maximum value.
The installer must ensure that under all operating conditions TC
(TC Z) remain within the limits stated in the table Temperature
specifications.
t
0
0.3 s
Fig. 7
Current limitation of single-output models or double-output
models with both outputs connected in parallel
Short Circuit Behavior
The current limiting circuit decreases the output voltage, when
an overcurrent occurs. It protects against a short circuit and
automatically recovers after removal of the overload condition.
If one output of double-output models is overloaded, the
current limiting circuit decreases the output voltage of output 1
and consequently also of the tracking output 2.
Io / Io nom
JM036
1.0
1 m/s
0.5 m/s
natural cooling
=
200 LFM
0.8
0.6
=
100 LFM
0.4
0.2
0
Connection in Series
The outputs of all models may be connected in series without
any precaution.
TA
20
40
60
80
100
°C
Connection in Parallel
If single-output converters should be operated in parallel, we
recommend to order option T.
Fig. 6a
Maximum allowed output power versus ambient temperature
(with no option Z).
Both outputs of a double-output converter can be connected in
parallel without precaution and will share their currents evenly.
Note: If output 2 of a double-output converter is not used, connect
it parallel to output 1.
Io / Io nom
JM039
1.0
Single-output converters without option T or double-output
converters with the same nominal output voltage should only
be operated in parallel with some precautions. The output lines
to the load should have the same length and section. To
improve the current repartition, small resistors should be
present in the output lines. If ORing diodes are used, double
Schottky diodes should be chosen to keep both diodes at the
same temperature level. If single diodes are chosen, they
should be mounted on the same heat sink. If the total load
exceeds 150% of the nominal load of one converter, start-up
problems are possible.
1 m/s
0.5 m/s
natural cooling
=
200 LFM
0.8
0.6
=
100 LFM
0.4
0.2
0
TA
20
40
60
80
100
°C
Fig. 6b
Note: Instead of connecting two 24 V models in parallel, we
Maximum allowed output power versus ambient temperature
for converters with option Z in vertical position.
recommend connecting of two 12 V models in series.
BCD.00002 Rev AB, 2-Mar-2011
Page 8 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Typical Performance Curves
General conditions:
– TA = 25°C, unless TC is specified.
– Shutdown and R pin left open-circuit.
η [%]
JM040
100
V = 50 V
i
90
V = 110 V
i
80
V = 150 V
i
70
60
0
0.2
0.4
0.6
0.8
Io / Io nom
Fig. 8
Efficiency versus input voltage and load. Typical values
(110IMY70-24-24)
Vo nom
JM030
1.1
Vo2
1.05
1.0
Vo1
0.95
0.9
0.85
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Io nom
Fig. 9
Cross regulation of double-output models (typ.)
Vo2 versus Io2, Io1 = 0.5 Io1 nom
BCD.00002 Rev AB, 2-Mar-2011
Page 9 of 15
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IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Synchronization (W)
Auxiliary Functions
It is possible to synchronize the switching frequency of one or
more converters to an external clock signal. If this option is
required, consult Power-One for full application details.
Adjustable Output Voltage
As a standard feature, the converters offer adjustable output
voltages by using the control input R. Fig. 10 shows the
schematic diagram of the circuitry. If the control input is left
Note: In case of no synchronization, pin 6 (W) can be connected to
Vi– (pin 2) or left open-circuit.
open-circuit, the output voltage is set to Vo nom
.
__
Shutdown (SD)
Note: For output voltages Vo > Vo nom, the minimum input voltage
Vi min (see Electr. Input Data) increases proportionally to Vo /Vo nom
.
The outputs of the converters may be enabled or disabled by a
logic signal (TTL, CMOS, etc.) applied between the shutdown
pin 8 and Vi–. If the shutdown function is not required, pin 8
should be left open-circuit. Voltage on pin 8:
06029e
Vi+
Vo+
Rext2
Converter operating:
Converter disabled:
2.0 to 20 V
4 kΩ
V
ref = 2.5 V
–0.7 to +0.7 V
R
+
+
–
Control
logic
Progr. Input Voltage Lockout PUL
Vext
Rext1
A special feature of these converters is the adjustable accurate
undervoltage lockout function, protecting the converter (and
the system) from high currents caused by operation at too low
input voltage. This ensures easier startup in distributed power
systems.
Vo–
Vi–
Fig. 10
Output voltage control by means of the R input
The undervoltage lockout levels may be programmed by use of
an external resistor RPUL (between PUL and Vi–) to increase
the preset levels, as indicated in the table below (with
hysteresis).
The R input is referenced to the secondary side of the
converter. Adjustment of the output voltage Vo (or Vo1) is
possible by means of either an external resistor or a voltage
source.
The overvoltage lockout (OVL) cannot cannot be varied.
a) Adjustment by means of an external resistor Rext
Depending upon the value of the required output voltage,
the resistor shall be connected:
.
Table 8: Turn-on and shutdown voltage (pin 1 left open)
Model
Turnonlevel
12 to 13
Hysteresis
OVL
Unit
either: Between the R pin and Vo– (or Vo1) to achieve an
output voltage adjustment range of Vo ≈ 80 to 100% of
24IMX70
40IMX70
110IMY70
V
19 to 20.5
44.5 to 47.5
Vo nom
.
typ. 6
160 to 175
Vo
Rext1 ≈ 4 kΩ • –––––––––
Vo nom – Vo
Table 9: Typical values for RPUL and the respective turn-on
input voltage Vi LO
or: Between the R pin and Vo+ (or Vo1+) to achieve an
.
output voltage range of Vo ≈ 100 to 105% of Vo nom
.
24IMX70
40IMX70
RPUL [kΩ]
(Vo – 2.5V)
Rext2 ≈ 4 kΩ • ––––––––––––––––––
2.5 V • (Vo/Vo nom – 1)
RPUL [kΩ]
V
i LO [V]
V
i LO [V]
b) Adjustment by means of an external voltage Vext between
Vo– (or Vo1–) and the R pin.
The control voltage range is 1.96 to 2.62 V and allows for
∞
39
19
13
9.1
≤ 12
∞
43
16
10
0
≤ 20
adjustment in the range of Vo ≈ 80 to 105% of Vo nom
.
Vo • 2.5 V
Vext ≈ ––––––––
Vo nom
Note: Applying an external control voltage >2.75 V may damage
the converter.
110IMY70
RPUL [kΩ]
V
i LO [V]
Reference Output (Ref)
∞
270
110
82
46
50
57
61
The converter provides a stable 5 V (±0.25 V) reference signal
on pin 7 (Ref). The output is protected by a 1 kΩ resistor.
Note: It is recommended to connect a filter capacitor (0.1 µF)
between Ref and Vi–, if Ref is used.
BCD.00002 Rev AB, 2-Mar-2011
Page 10 of 15
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IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Electromagnetic Compatibility (EMC)
typically occur in many installations, but especially in battery-
driven mobile applications.
A suppressor diode together with an input filter form an
effective protection against high input transient voltages which
Electromagnetic Immunity
Table 10: Immunity type tests
Phenomenon
Standard
Class
Level
Coupling
mode 1
Value
applied
Waveform
Source
imped.
Test
procedure
In
oper. form.
Per- 2
Electrostatic
discharge
to case
IEC/EN
61000-4-2 3
contact discharge ±6000 Vp
(R pin open)
1/50 ns
330 Ω
10 positive and
10 negative
discharges
yes
B
3
air discharge
(R pin open)
±8000 Vp
Electromagnetic
field
IEC/EN
61000-4-3
x 4
antenna
antenna
20 V/m
20 V/m
10 V/m
5 V/m
80% AM, 1 kHz
80% AM, 1 kHz
n.a.
n.a.
80 – 1000 MHz
800 – 1000 MHz
1400 – 2100 MHz
2100 – 2500 MHz
yes
yes
A
5
A
6
Electrical fast
transients/burst
IEC/EN
61000-4-4:
2004
36
4
direct coupl. (fig. 9)
2000 Vp bursts of 5/50 ns
50 Ω
12 Ω
60 s positive
60 s negative
transients per
coupling mode
yes
yes
A
B
+i/c,
–i/c,+i/–i
5 kHz over 15 ms
burst period: 300
4000 Vp
3
capacit. (fig. 10), o/c
+i/c, –i/c
2000 Vp
ms
yes
yes
B
B
3
Surges
IEC/EN
61000-4-5
37
2000 Vp
1.2/50 µs
5 pos. and 5 neg.
surges per
coupling mode
3
2 7
38
+i/–i
1000 Vp
2 Ω
Conducted
disturbances
IEC/EN
61000-4-6
i, o, signal wires
10 VAC
AM 80%
1 kHz
150 Ω
0.15 – 80 MHz
yes
A
(140 dBµV)
1
i = input, o = output, c = case (not for option Z)
2
3
4
5
6
7
8
A = normal operation, no deviation from specification, B = temporary deviation from specs. possible.
Corresponds to EN 50121-3-2:2006, table 9.3
Corresponds to EN 50121-3-2:2006 table 9.1 and exceeds EN 50121-4:2006 table 1.1.
Corresponds to EN 50121-3-2:2006 table 9.2 and EN 50121-4:2006 table 1.2 (compliance with digital mobile phones).
Corresponds to EN 50121-3-2:2006 table 7.2 and EN 50121-4:2006 table 2.2.
Measured with an external input capacitor specified in table 5
Corresponds to EN 50121-3-2:2006 table 7.1 and EN 50121-4:2006 table 2.2.
Electromagnetic Emissions
dbμV
80
JM037
The EMC requirements must be observed at the end product
system level. However, Power-One tests the converters to
EMC standards. An effective integrated input filter significantly
reduces the reflected input current and improves EMC
features. Further improvements are possible by adding simple
external filters.
EN 55022 A qp
EN 55022 A avr
60
40
20
0
0.2
0.5
1
2
5
10
20 MHz
Fig. 11
Typical disturbance voltage at the input (green = peak, x =
quasi-peak, pink = average) according to EN 55011/22,
measured at Vi nom and Io nom. Output leads = 0.1 m, twisted
(110IMY70-24-24).
BCD.00002 Rev AB, 2-Mar-2011
Page 11 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Immunity to Environmental Conditions
Table 11: 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
sodium chloride
(NaCl) solution 2
EN 50155:2007
sect. 12.2.10
class ST3 2
Temperature:
Duration:
35±2 °C
48 h
Converter
not
operating
Eb
Fc
Bump
(half-sinusoidal)
IEC/EN 60068-2-29
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Number of bumps:
25 gn = 245 m/s2
6 ms
6000 (1000 in each direction)
Converter
operating
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
(half-sinusoidal)
IEC/EN 60068-2-27
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Number of bumps:
50 gn = 490 m/s2
11 ms
18 (3 in each direction)
Converter
operating
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,
Body mounted1
Frequency band:
Acceleration magnitude:
Test duration:
5 – 150 Hz
0.8 gn rms
15 h (5 h in each axis)
increased random
vibration levels
1
Body mounted = chassis of a railway coach
Models with option Z have been covered by lacquer (Peters SL1301) to simulate the end-use situation.
2
Temperatures
Table 12: Temperature specifications, valid for air pressure of 800 to 1200 hPa (800 to 1200 mbar)
Temperature
-0
Unit
Characteristics
Conditions
Operational 1
min
–40
–40
–40
–55
max
85 1
100 2
115 2
105
TA
TC
Ambient temperature
Case temperature (without opt. Z) 2
° C
TC Z Component temp. with opt. Z 2
TS
Storage temperature
Non operational
1
2
See Thermal Considerations
Temperature measurment point; see Mechanical Data
Reliability
Table 13: MTBF at nominal load
Model
Ground benign
40 °C
Ground fixed
40 °C
Ground mobile
50 °C
Device hours
Unit
70 °C 1
24IMX70 (MIL-HDBK-217F, TC)
110IMY70 (Bellcore, TA)
h
1 260 000
632 000
180 000
140 000
1
with an air flow of 0.5 m/s
BCD.00002 Rev AB, 2-Mar-2011
Page 12 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Mechanical Data
Dimensions in mm.
European
Projection
4 threads M3
JM032a
JM031
TC Z
1
0.8 x 0.8
0.8 x 0.8
1
Bottom
view
Bottom
view
TC
19
19
63.5
72.8
63.5
69.6
76.2
TC
TC Z
Core
Components
Core
Fig. 12
Fig. 13
Case IMX70/IMY70 (Standard)
Weight: approx. 130 g
IMX70/IMY70 open frame (option Z)
Weight: approx. 60 g
BCD.00002 Rev AB, 2-Mar-2011
Page 13 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Ensure that a converter failure (e.g., by an internal short-
circuit) does not result in a hazardous condition.
Safety and Installation Instructions
Pin allocation
earthed copper area
JM043
Table 14: Pin allocation
case
Pin no.
Single-output
Double-output
1
2
PUL
Vi–
PUL
Vi–
PCB
screw M3
lock washer
3
n.c. / Vi– 1
Vi+
n.c. / Vi– 1
Vi+
Fig. 15
4
Reliabel connection of the metallic case to protection earth
(110IMY70 models). Use at least 2 screws!
5
n.c. / Vi+ 1
W (Sync.)
Ref
n.c. / Vi+ 1
W (Sync.)
Ref
6
Standards and Approvals
7
The converters are safety agency approved to the standards
IEC/EN 60950 and UL/CSA 60950-1 2nd Edition.
8
SD / i 2
n.c. / T 3
n.c.
SD / i 2
n.c.
11
12
13
14
15
16
17
18
19
The converters have been evaluated for:
• Building-in
n.c.
S+
Vo2+
• Basic insulation input to output for 24IMX70 and 40IMX70
models, based on the maximum input voltage;
• Reinforced insulation input to output for 110IMY70
models, basic insulation to the case, based on the input
voltage of 150 V. The case must be reliably connected to
PE (protective earth) – except option Z; see fig. 15.
• Pollution degree 2
Vo–
Vo2–
Vo–
Vo1–
Vo+
Vo1+
Vo+
n.c.
S–
n.c.
• Connecting the input to a secondary circuit, which is
subject to a maximum transient rating of 1500 V.
R (adjust)
R (adjust)
1
2
3
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
Only connected at 24IMX models, n.c. for 40IMX and 110IMY
i if option i (inhibit) is fitted
Only if option T (current share) is fitted
CB scheme is available.
09122b
Input Fuse
11
1
2
3
4
5
6
7
8
To prevent excessive current flowing through the input supply
lines in case of a short-circuit in the converter, an external fuse
should be installed in the non-earthed input line; see table 3.
12
13
14
15
16
17
18
19
Bottom
view
Railway Applications
To comply with Railway standards, all components are coated
with a protective lacquer (except option Z).
Protection Degree
4 treads M3
Fig. 14
The protection degree is IP 40 (except option Z).
Footprint. The holes in the PCB should have a diameter of
1.5 mm.
Cleaning Agents
Installation Instructions
In order to avoid possible damage, any penetration of cleaning
fluids should be prevented, since the converters are not
hermetically sealed.
Installation of the converters must strictly follow the national
safety regulations in compliance with the enclosure, mounting,
creapage, clearance, casualty, markings, and segregation
requirements of the end-use application.
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 agents are
not permitted – except washing at room temperature with
isopropyl alcohol. If necessary, the mother board must be
cleaned, before fitting the open-frame converter.
Connection to the system shall be made via a printed circuit
board with hole diameters of 1.5 mm for the pins. Connect both
input pins for 24IMX70 models.
The converters should be connected to a secondary circuit.
Do not open the converter.
Note: Cleaning liquids may damage the adhesive joints of the
ferrite cores.
BCD.00002 Rev AB, 2-Mar-2011
Page 14 of 15
www.power-one.com
IMX70, IMY70 Series Data Sheet
70 Watt DC-DC Converters
®
Isolation
and UL/CSA 60950-1, 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, IEC/EN 60950-1,
Table 15: Electric strength test voltages
Characteristic
Input to
(outputs+case)
20/40IMX70 1
Input to
(outputs+case)
110IMY701
Outputs to
case
all models1
Between
outputs
all models
Unit
Factory test >1 s
1.2
1.7
3
0.5
0.7
–
0.152
0.22
–
kVAC
kVDC
MΩ
Equivalent DC voltage
4.2
Insulation resistance
at 500 VDC
>100
>100
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. For higher isolation between outputs, contact Power-One.
2
Options
Option T
This option is available for single-output models only. Several
parallel connected converters will share their current evenly by
interconnecting the T pins (pin 11).
Option i: Inhibit (Negative Shutdown Logic)
The output of the converter may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied to the inhibit
pin 8. No output voltage overshoot will occur, when the
converter is turned on. If the inhibit function is not required the
inhibit pin 8 should be connected to Vi– to enable the output
(active low logic, fail safe). Voltage on pin 8:
Note: Option T allows for connecting the outputs together through
ORing diodes to achieve redundancy. We recommend Schottky
diodes mounted onto the same heat sink (for thermal balancing).
Option Z
Converter operating:
Converter disabled:
–10 V to +0.8 V
2.4 V to 20 V
If the converters are mounted onto a mother board, in many
cases, a converter case is not required. Only converters with
option Z are not varnished, and this allows dipping of the
populated board including the converter into a protection
lacquer.
06138a
4
8
2
Vi+
Note: The converters shall not be exposed to cleaning processes,
as this will damage the glue of the ferrite cores.
i
Option G
Vi–
Converters with a type designation ending by G are RoHS-
compliant for all six substances.
Fig. 16
If the inhibit function is not used, the inhibit pin should be
connected to Vi–.
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.
BCD.00002 Rev AB, 2-Mar-2011
Page 15 of 15
www.power-one.com
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