110IMY15-15-15-8G

IMX15 BEL | Alldatasheet

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Technical content

Features

• RoHS lead-free-solder and lead-solder-exempted products are available.  Wide input voltage ranges up to 150 VDC  1 or 2 isolated outputs up to 48 V  1500 to 3000 VAC I/O voltage withstand test  Emissions EN 55022 level A  Immunity to IEC/EN 61000-4-2,-3,-4,-5, and -6  Fire&smoke as per EN 45545  High efficiency (typ. 86%)  Input undervoltage lockout  Shutdown input, adjustable output voltages  Flex power: Flexible load distribution on outputs  Outputs no-load, overload, and short-circuit proof  Operating ambient temperature –40 to 85 °C  Thermal protection  2" x 1.6" case with 10.5 mm profile  Supplementary insulation: 20/40IMX15 models, double or reinforced insulation: 110IMY15 models

Description

The IMX15, IMS15, and IMY15 Series of board mountable

15 Watt DC-DC converters have 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 telecommu- nication, where variable input voltages or high transient voltages are prevalent. Covering a total input voltage range from 8.4 up to 150 V with different models, the converters are available with single and electrically-isolated double outputs from 3.3 up to 48 V, externally adjustable, with flexible load distribution on double- output models. A shutdown input allows for remote on/off. Features include efficient input and output filtering and consistently high efficiency over the entire input voltage range, high reliability, and excellent dynamic response to load and line changes. The converters have been approved by CSA. 20IMS/20IMX15 and 40IMS/40IMX15 models provide supplementary insulation. Connected to a secondary circuit, these models provide SELV outputs, even if the bus voltage at the converter input exceeds the SELV-limit of 60 VDC. The 110IMY15 models provide double insulation and are CE marked. They may be connected to a rectified 110 VAC source without any further isolation barrier. The circuitry is comprised of integrated planar magnetics. 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 conditions. Careful con- sideration of possible thermal stress ensures the absence of hot spots providing long life in environments, where temperature cycles are frequent. The thermal design allows operation at full load up to an ambient temperature of 71 °C in free air without using any potting material. For extremely high vibration environments the case has holes for screw mounting. 2.0" 40.6 1.6" 10.5 0.42" Safety-approved to IEC 60950-1 and UL/CSA 60950 -1 2nd Edition Table of Contents Page Page Copyright © 2017, Bel Power Solutions Inc. All rights reserved. 1 110IMY15 models

IMX15, IMY15, IMS15 Series Data Sheet

15 Watt DC-DC Converters

BCD20008-G Rev AE, 25-Aug-2017 Page 2 of 19 MELCHER The Power Partners. Model Selection Table 1: Model Selection Output 1 Output 2 Output Input voltage Efficiency Model Options 2 Vo nom Io nom 1 Vo nom Io nom 1 power Vi min to Vi max ηηηηηmin 6 ηηηηη typ 6 [VDC] [A] [VDC] [A] P o nom [W] [VDC] [%] [%] 3.3 4.5 - - 14.9 8.4 to 36 5 80 82 20IMX15-03-8RG-G SR i, Z, non-G 3.3 4.0 - - 13.2 16.8 to 75 3 78 80 40IMX15-03-8RG non-G 3.3 4.5 - - 14.9 16.8 to 75 3 81 83 40IMX15-03-8RG-G SR i, Z, non-G 3.3 4.5 - - 14.9 50 to 150 4 77 79 110IMY15-03-8RG-G SR i, Z, non-G 5.1 3.5 - - 17.5 8.4 to 36 5 83 86 20IMX15-05-8RG-G SR i, Z, non-G 5.1 3.5 - - 17.5 16.8 to 75 3 85 87 40IMX15-05-8RG-G SR i, Z, non-G 5.1 3.5 - - 17.5 50 to 150 4 79.5 82 110IMY15-05-8RG-G SR i, Z, non-G 5.1 2.3 - - 11.7 8.4 to 36 5 82 84 20IMX15-05-8RG Z, non-G 5.1 2.7 - - 13.8 14 to 36 81.5 84 24IMS15-05-9R -- 5.1 2.5 - - 12.8 16.8 to 75 3 81.5 83 40IMX15-05-8RG -- 5.1 2.5 - - 12.8 50 to 150 4 78 81 110IMY15-05-8RG Z, non-G 5 1.3 5 1.3 13.0 8.4 to 36 5 82 85 20IMX15-05-05-8G i, Z, non-G 5 1.4 5 1.4 14.0 14 to 36 81 84 24IMS15-05-05-9 -- 5 1.4 5 1.4 14.0 16.8 to 75 3 81 84 40IMX15-05-05-8G i, Z, non-G 5 1.4 5 1.4 14.0 50 to 150 4 80 82 110IMY15-05-05-8G i, Z, non-G 12 0.65 12 0.65 15.6 8.4 to 36 5 83 86 20IMX15-12-12-8G i, Z, non-G 12 0.7 12 0.7 16.8 14 to 36 83 86 24IMS15-12-12-9 -- 12 0.7 12 0.7 16.8 16.8 to 75 3 84 87 40IMX15-12-12-8G i, Z, non-G 12 0.7 12 0.7 16.8 50 to 150 4 82 85 110IMY15-12-12-8G i, Z, non-G 15 0.5 15 0.5 15.0 8.4 to 36 5 85 88 20IMX15-15-15-8G i, Z, non-G 15 0.56 15 0.56 16.8 14 to 36 83 86 24IMS15-15-15-9 -- 15 0.56 15 0.56 16.8 16.8 to 75 3 83 86 40IMX15-15-15-8G i, Z, non-G 15 0.56 15 0.56 16.8 50 to 150 4 82 85 110IMY15-15-15-8G i, Z, non-G 24 0.32 24 0.32 15.4 8.4 to 36 5 83 86 20IMX15-24-24-8G i, Z, non-G 24 0.35 24 0.35 16.8 14 to 36 84 87 24IMS15-24-24-9G non-G 24 0.35 24 0.35 16.8 16.8 to 75 3 84 86 40IMX15-24-24-8G i, Z, non-G 24 0.35 24 0.35 16.8 50 to 150 4 82 85 110IMY15-24-24-8G i, Z, non-G 1 Flexible load distribution on dual and double outputs possible; up to 75% of the total output power Po nom on one of the 2 outputs. IMX/IMY15-0503 models have reduced load distribution flexibility; 1.8 A max. on one of the 2 outputs. The total output power should not exceed Po nom. 2 See Description of Options. 3 Short-time operation down to Vi = 14.4 V possible (Po reduced to approx. 85% of Po nom) 4 Short-time operation down to Vi = 43.2 V possible (Po reduced to approx. 85% of Po nom) and up to 154 V 5 Initial start-up at 9 V, main output voltage regulation down to 8.4 V 6 Efficiency at TA = 25 °C, Vi nom, Io nom. SR Models with synchronos rectifier. For the RoHS version of such models, add -G ! Preferred for new designs. NFND Not for new designs. Replace 24IMS15 models by 20IMX15 and 48IMS15 by 40IMX15; Replace 20IMX15-05, 40IMX15-05, 110IMY15-05 by models with synchronos rectifierSR ; for new designs, chose always the RoHS version !

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 3 of 19 MELCHER The Power Partners. RoHS-Compliant Models The type designation of RoHS-compliant models (compliant for the restriction of all six substances) for the IMX/IMY15 Series ends with "G". However, in single-output models with 3.3 V or 5.1 V output an extra hyphen (-) is added after the existing "G", which already signifies a synchronous rectifierSR . This is an exception to our normal nomenclature to identify this type of product, since G is already used to designate products for higher output current fitted with a synchronous rectifier. Some examples – 20IMX15-05-8R-G designates a standard version with RoHS compliance for all six substances. – 20IMX15-05-8RG designates a synchronous rectifier SR version which is not RoHS-compliant. – 20IMX15-05-8RG-G designates a synchronous rectifierSR version and RoHS compliant for all six substances. – 20IMX15-05-05-8G designates a double-output model with RoHS compliance for all six substances – 110IMY15-24-24-8RG designates a double-output model with RoHS compliance for all six substances. Part Number Description

40 IMX15 - 05 -8 R G Z -G

Series IMX15, IMS15, IMY15 Hyphen designating double-output models with two Operating ambient temperature range TA Options and features: 1 Not applicable to -0503 models. They have a common ground. 2 IMS15 models are not recommended for new designs.

3 Standard for single-output and -0503 models

4 Option i replaces the standard shutdown function; see Description of Options. 5 RoHS models with synchronous rectifier end as an exception with -G. 6 Only –25 °C for older -8RGSR models (Rev. < BA); see table 7a. Note: The sequence of options must follow the order above ! Examples: 20 IMX15-05-05-8G: DC-DC converter, input 9 to 36 V, 2 galvanically isolated outputs each providing 5 V, 1.3 A, RoHS-compliant 110IMY15-0503-8RG: DC-DC converter, input 50 to 150 V, 2 outputs with common return providing +5.1 V, 1.5 A and +3.3 V, 1.5 A, RoHS-compliant. Converter fitted with magnetic feedback for tight output voltage regulation. Product Marking The converters without option Z are marked with basic type designation, input and output voltages and currents, applicable safety approval and recognition marks, patent nos., company logo, date code, and serial number.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 4 of 19 MELCHER The Power Partners. Functional Description The IMX15/IMS15/IMY15 Series of DC-DC converters are magnetic feedback-controlled flyback converters using current mode PWM (Pulse Width Modulation). The -05- and -0503- output voltage models exhibit an active magnetic feedback loop via a pulse transformer, resulting in very tight regulation of the output voltage (see the block diagrams). The output voltages of these models can be adjusted via the R-input. The R-input is referenced to the secondary side and allows for programming the output voltages in the range of approximately 80 to 105% of V o nom, using either an external resistor or an external voltage source. Several single-output models with 3.3 or 5.1 V output exhibit a synchronous rectifier to improve the efficiency. The voltage regulation on the double-output models is achieved with an auxiliary winding of the main transformer. The output voltages can be adjusted via the Trim input, which is referenced to the primary side and allows for programming the output voltage in the range of 100 to 105% of V o nom via an external resistor, or within 75 to 105% if using an external voltage source. The load regulation output characteristic allows for paralleling of one or more double-output models with equal output voltage. Current limitation is provided by the primary circuit, thus limiting the total output power of double-output models. The shutdown input allows remote converter on/off. Overtemperature protection will disable the converter under excessive overload conditions with automatic restart. Fig. 1 Block diagram of single-output models Fig. 2 Block diagram of -0503-models Fig. 3 Block diagram of double-output models PWM 2 x 2200 pF Vi+ SD Vi– Vo1+ Go n.c. Vo2+ Go 03089a 17 R PWM 2 x 2200 pF Vi+ SD Vi– Vo1+ Vo1– Trim Vo2+ Vo2– 03090a 17 n.c. PWM 2 x 2200 pF 1500 V Vi+ Vi– Vo+ Vo– 03039a 17 R 4SD 3n.c.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 5 of 19 MELCHER The Power Partners. Table 2a: Input data of IMX15 and IMY15 models Input 20IMX 40IMX 110IMY Unit Characteristics Conditions min typ max min typ max min typ max Vi Input voltage range 1 TA min – TA max 9 5, 7 36 16.8 5, 6 75 50 5 150 8 V Vi nom Nominal input voltage Io = 0 – Io nom 20 40 110 Vi sur Repetitive surge voltage Abs. max input (3 s) 40 100 168 start-up time 2 SD high Vi min, Io = Io nom 0.1 0.1 0.1 trise Rise time 2 Vi nom, resistive load 5 5 5 ms Io nom, capac. load 10 20 10 20 10 20 Ii o No-load input current Io = 0, Vi min – Vi max 65 45 15 mA Iirr Reflected ripple currentIo = 0 – Io nom 30 30 20 mA pp Iinr p Inrush peak current 3 Vi = Vi nom 89 1 0 A C i Input capacitance for surge calculation 1.5 0.75 0.35 µF VS–D– Shut-down voltage Converter disabled –10 to 0.7 –10 to 0.7 –10 to 0.7 V Converter operating open or 2 – 20 open or 2 – 20 open or 2 – 20 R S–D– Shut-down input resistance approx. 10 approx. 10 approx. 10 k Ω IS–D– Input current, when Vi min – Vi max 10 3 1 mA disabled SD connected to Vi– fs Switching frequency Vi min – Vi max, approx. 300 approx. 300 approx. 300 kHz Io = 0 – Io nom Vi RFI Input RFI level conducted EN 55032 4 AA A 1 If Vo is set above Vo nom by use of the R or Trim input, Vi min will be proportionately increased. 2 Measured with resistive and max. admissible capacitive load. Valid for models with rev. AI or greater. 3 Source impedance according to ETS 300132-2, version 4.3. 4 Measured with a ceramic capacitor C i directly across input; output lead length 0.1 m, leads twisted. Double-output models with both outputs in parallel. C i is specified in table 11. 5 Input undervoltage lockout at typ. 80% of Vi min. 6 Short time operation down to Vi min >14.4 V possible. Po reduced to approx. 85% of Po nom. 7 Initial start-up at Vi = 9 V, main output voltage regulation down to 8.4 V 8 Short time operation up to 154 V possible for 2 s. Electrical Input Data General conditions: –T A = 25 °C, unless TC is specified. – Shut-down pin left open-circuit. – Trim or R input left open-circuit.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 6 of 19 MELCHER The Power Partners. Table 2b: Input Data of IMS15 models; general conditions as in table 2a Input 24IMS 48IMS Unit Characteristics Conditions min typ max min typ max Vi Input voltage range 1 TA min – TA max 14 36 36 75 V Vi nom Nominal input voltage Io = 0 – Io nom 24 48 Vi sur Repetitive surge voltage Abs. max input (3 s) 50 100 tstartup Converter Switch on Worst case condition at 0.25 0.5 0.25 0.5 s start-up time 2 SD high Vi min, Io = Io nom 0.1 0.1 trise Rise time 2 Vi nom, resistive load 5 5 ms Io nom, capac. load 10 20 10 20 Ii o No-load input current Io = 0, Vi min – Vi max 20 40 10 20 mA Iirr Reflected ripple currentIo = 0 – Io nom 30 30 mA pp Iinr p Inrush peak current 3 Vi = Vi nom 5 4.5 A C i Input capacitance for surge calculation 4 2 µF VS–D– Shut-down voltage Converter disabled –10 to 0.7 –10 to 0.7 V Converter operating open or 2 – 20 open or 2 – 20 R S–D– Shut-down input resistance approx. 10 approx. 10 k Ω IS–D– Input current, when Vi min – Vi max 1.2 3 1.2 3 mA disabled SD connected to Vi– fs Switching frequency Vi min – Vi max, approx. 300 approx. 300 kHz Io = 0 – Io nom Vi RFI Input RFI level conducted EN 55022 4 AA 1 If Vo is set above Vo nom by use of the R or Trim input, Vi min will be proportionately increased. 2 Measured with resistive and max. admissible capacitive load. 3 Source impedance according to ETS 300132-2, version 4.3. 4 Measured with a ceramic capacitor C i directly across input; output lead length 0.1 m, leads twisted. Double-output models with both outputs in parallel. C i is specified in table 11. 5 Input undervoltage lockout at typ. 80% of Vi min.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 7 of 19 MELCHER The Power Partners. Input Transient Voltage Protection A built-in suppressor diode provides effective protection against input transients, which typically occur in many installations. Table 5: Built-in transient voltage suppressor Type Breakdown Peak power Peak pulse voltage at 1 ms current VBr nom [V] Pp [W] Ipp [A] 20IMX15 40 1500 22 24IMS15 53 600 7.7 40IMX15 100 1500 9.7 48IMS15 100 600 4.1 110IMY15 168 600 0.5 Fuse and Reverse Polarity Protection 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. Table 4: Recommended external fuses Inrush Current The inrush current has been made 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 current. Fig. 4 Typical inrush current at V i nom, Po nom versus time (40IMX15). Source impedance according to ETS 300132-2 at V i nom. Fig. 5 Converter start-up and rise time For very high energy transients as for example to achieve compliance to IEC/EN 61000-4-5 (see table Electromagnetic Immunity), an external inductor and a capacitor are required, see Fig. 6. The components are specified in table 6. Fig. 6 Example for external circuitry to achieve better transient immunity. Values of components in the table below. Table 6: Components for external circuitry for IEC/EN 61000-4-5, level 3 compliance. Model Inductor (L) Capacitor ( C ) 20IMX15 220 µH, 2.7 A 2 x 330 µF, 63 V 24IMS15 220 µH, 1.3 A 2 x 330 µF, 63 V 40IMX15 220 µH, 1.3 A 2 x 330 µF, 100 V 48IMS15 220 µH, 1 A 2 x 330 µF, 100 V 110IMY15 220 µH, 0.4 A 2 x 330 µF, 200 V Model Fuse type 20IMX15 F 4.0 A 24IMS15 F 3.15 A 40IMX15, 48IMS15 F 2.0 A 110IMY15 F 1.0 A Vo nom Vo tstartup trise t 04008b Input Undervoltage Lockout A special feature of these converters is the accurate undervoltage lockout protection, which protects against large currents caused by operation at low voltages. This ensures easier start-up in distributed power systems. Tab. 3: Turn on and turn off voltage Model Turn on Turn off Unit min max min max 20IMX15 7.5 8 7 7.5 V 24IMS15 12.5 13.5 12 13 40IMX15 12.5 13.5 12 13 48IMS15 31.5 32.5 31 32 110IMY15 40 42.5 38 40.5 t 04022b 0 20 40 60 80 100 µs A Vi+ Vi– C L JM234 C + 20IMX15 40IMX15 110IMY15

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 8 of 19 MELCHER The Power Partners. Electrical Output Data We recommend connecting an external 1 µF ceramic capacitor across the output pins. General conditions: – TA = 25 °C, unless TC is specified – Shutdown pin and Trim or R pin left open-circuit (not connected) Table 7a: Output data for single-output models -03-8RG 1 and 05-8RG 1 Output 3.3 V 5.1 V Unit Characteristics Conditions min typ max min typ max Vo Output voltage Vi nom 3.25 3.35 5.05 5.15 V Io = 0.5 Io nom Io nom Output current 20IMX Vi min to Vi max 4.5 3.5 A 40IMX /110IMY 4.5 3.5 Io L Current limit 2 Vi nom, TC = 25 °C 6.0 4.6 Vo ≤ 93% Vo nom ∆Vo Line/load regulation Vi min to Vi max, ±0.5 ±0.5 % (0.1 to 1) Io nom Vo Output voltage noise Vi min to Vi max 4 100 100 mV pp Io = Io nom 5 60 60 Vo L Output overvoltage limit. 3 115 130 115 130 % C o ext Admissible capacitive load 0 4000 6 0 4000 6 µ F Vo d Dynamic Voltage deviat. Vi nom ±250 ±250 mV to d load Recovery time Io nom ↔ 1/2 Io nom 11 m sregulation IEC/EN 61204 α Vo Temperature coefficient Vi min to Vi max ±0.02 ±0.02 %/K ∆Vo /∆TC (0.1 to 1) Io nom 1 SR Models -8RG (synchr. rectifier) have a minimum case and operating temperature of –25 °C. If the revision is BA (or later), it is –40 °C. 2 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 after cooling down). 3 The overvoltage protection is via a primary side second regulation loop. It is not tracking with R control.

4 BW = 20 MHz

5 Measured with a probe according to EN 61204

6 C o ext is limited to 3000 µF, if Vi >125 V or TA < 25 °C

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 9 of 19 MELCHER The Power Partners. Table 7b: Output data for -05-8R and -0503-8R models; general conditions as in table 7a Output 5.1 V 5.1/3.3 V Unit Characteristics Conditions min typ max min typ max Vo, Vo1 Output voltage Vi nom 5.05 5.15 5.0 5.12 V Vo2 Io = 0.5 Io nom 3.13 3.46 Io nom Output current 1 20IMX Vi min – Vi max 2.3 2 × 1.35 1.6 4 A 24IMS/48IMS 2.7 2 × 1.6 2.0 4 40IMX/110IMY 2.5 2 × 1.5 1.8 4 IoL, Io1L Current limit 2 20IMX Vi nom 3.2 2.7 Io2L Vo1 ≤ 93% Vo nom 3.8 IoL, Io1L 24IMS/48IMS 3.5 3.0 Io2L 3.8 IoL/Io1L 40IMX/110IMY 3.6 2.9 Io2L 4.0 ∆Vo Line/load regulation 5.1 VVi min – Vi max, ±0.5 – % 3.3 V – ±4.5 Vo1/2 Output voltage noise Vi min – Vi max 5 70 80 mV pp Io = Io nom 6 40 40 Vo L Output overvoltage limit 7 115 130 115 130 % C o ext Admissible capacitive load 0 4000 0 4000 3 µF Vo d Dynamic Voltage deviat.Vi nom ±250 ±150 mV to d load Recovery time Io nom ↔ 1/2 Io nom 11 m sregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 %/K ∆Vo/∆TC (0.1 – 1) Io nom 1 Flexible load distribution: Io max for one of the 2 outputs; however the total load should not exceed Po nom specified in the table Model Selection. 2 The current limit is primary-side controlled. 3 For -0503-models: total capacitive load of both outputs. 4 For -0503-models: Conditions for specified output. Other output loaded with constant current Io = 0.5 Io nom.

5 BW = 20 MHz

6 Measured with a probe according to EN 61204

7 The overvoltage protection is via a primary side second regulation loop. It is not tracking with R control.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 10 of 19 MELCHER The Power Partners. able 7c: Output data for double-output models; general conditions as in table 7a Characteristics Conditions min typ max min typ max min typ max min typ max IoL Current limit 2, 4 20IMX Vi nom 3.0 1.6 1.3 0.85 24IMS/48IMS Vo1 ≤ 93% Vo nom 3.5 1.9 1.6 0.95 40IMX/110IMY 3.2 1.7 1.4 0.90 ∆Vo1 Line/load regulation8 output 1 Vi min – Vi max, Io nom ±1 ±1 ±1 ±1 % ∆Vo2 output 2 Vi nom, (0.1 – 1) Io nom ±3 ±3 ±3 ±3 Vo1/2 Output voltage noise Vi min – Vi max 5 80 120 150 240 mV pp Io = Io nom 6 40 60 70 120 Vo L Output overvoltage limit 7 8 Min. load 1% 115 130 115 130 115 130 115 130 % C o ext Admissible capacitive load 3 0 4000 0 680 0 470 0 180 µ F Vo d Dynamic Voltage deviat.Vi nom ±250 ±300 ±300 ±600 mV to d load Recovery time Io nom ↔ 1/2 Io nom 11 1 1 m sregulation α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 ±0.02 ±0.02 %/K ∆Vo/∆ TC (0.1 – 1) Io nom 1 Flexible load distribution: Each output of double-output models is capable of delivering 75% of the total output power; however the total load should not exceed Po nom specified in the table Model Selection. 2 The current limit is primary-side controlled. 3 Measured with both outputs connected in parallel. 4 Conditions for specified output. Other output loaded with constant current Io = 0.5 Io nom. 7 The overvoltage protection is via a primary side second regulation loop, not tracking with Trim or R control. 8 At start-up occurs a short overshoot at the output.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 11 of 19 MELCHER The Power Partners. Thermal Considerations If a converter, mounted on a PCB, is located in free, quasi- stationary air (convection cooling) at the indicated maximum ambient temperature T A max (see table Temperature specifications) and is operated at its nominal input voltage and output power, the case temperature measured at the measuring point of case temperature T C (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 surfaces, and the properties of the printed circuit board. T A max is therefore only an indicative value. Caution: The case temperature TC measured at the measuring point of case temperature TC (see Mechanical Data) may under no circumstances exceed the specified maximum value. The installer must ensure that under all operating conditions T C remains within the limits stated in the table Temperature specifications. Overtemperature Protection The converters are protected from 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 in short intervals. This feature helps protect against excessive internal temperatures, which could occur during heavy overload conditions. Output Overvoltage Protection The output of single-output models as well as -0503- and -05- 05-models are protected against overvoltage by a second control loop. In the event of an overvoltage on one of the outputs, the converter will shut down and attempt to restart in short intervals. Doubel-output models (except -0503- and -05-05-models) are protected against overvoltage by a Zener diode across the second output. Under worst case conditions the Zener diode will become a short circuit. Since with double-output models both outputs track each other, the protection diode is only provided in one of the outputs. The main purpose of this feature is to protect against possible overvoltage, which could occur due to a failure in the control logic. This protection circuit is not designed to withstand externally applied overvoltages. Fig. 9 V o versus Io (typ) of converters with Vo = 5.1 V (110IMY15-05-8R) 5.5 5.0 4.5 4.0 3.5 3.0 V 05166a Fig. 8 Overload switch-off (hiccup mode); typical values 1.0 0.8 0.6 0.4 0.2 20 40 60 80 100 °C Po/Po max JM017 TA 0.5 m/s = 100 LFM natural cooling Short Circuit Behavior The current limit characteristic shuts down the converter, whenever a short circuit is applied to its output. It acts self- protecting, and automatically recovers after removal of the overload condition (hiccup mode). Parallel and Series Connection The outputs of one or several single- or double-output models Fig. 7 Maximum output power versus ambient temperature can be connected in series without any precautions, taking into consideration that the highest output voltage should remain below 42 V to ensure that the output remains SELV. Both outputs of the same converter with equal voltage (e.g. 5 V / 5 V) can be connected in parallel and will share their output currents equally. Parallel operation of single or double outputs of two or more converters with the same output voltage may cause start-up problems at initial start-up. This is only advisable in applications, where one converter is able to deliver the full load current as, for example, required in true redundant systems. Note: If the 2nd output of double-output models (except 0503) is not used, connect it in parallel to the 1st output. Typical Performance Curves General conditions: – T A = 25 ºC, unless TC is specified. – Shutdown pin left open-circuit. – Trim or R input not connected. 100 Vo [%] t 05041c 0.3 s overload condition switch-off

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 12 of 19 MELCHER The Power Partners. Fig. 10 Vo versus Io (typ.) of double-output models (2 x 12 V), with both outputs in parallel (110IMY15-12-12-8) V Io 05020a Fig. 12a Efficiency versus input voltage and load. Typical values (40IMX15-12-12-8). Fig. 11 Cross load regulation Vo1 versus Io1 (typ.) for various Io2 (2 x 12 V). Fig. 13 Flexible load distribution on double-outputs models with option R (110IMY15-12-12-8R): Load variation from 0 to 150% of I o1 nom on output 1; output 2 loaded with 50% of Io2 nom. Fig. 12b Efficiency versus input voltage and load. Typical values (110IMY15-12-12-8) 11.5 12.5 13.5 V Io1 0.1 05021a Io2 = 0.35 A Io2 = 0.035 A 0.5 0.75 1 Po/Po nom0.25 05167a Vi min Vi nom Vi max 0.5 0.750.25 05168a Vi min Vi nom Vi max

1 Po/Po nom

Fig. 12c Efficiency versus input voltage and load. Typical values (48IMS15-12-12-9) 05040a 0.25 0.5 0.75 1 Io1/Io1 nom Vi nom Vi max Vi min V Io1/Io1 nom 05039-X15b 10 0 0.25 0.5 0.75 1 1.5 Vo2 Vo1 1.25

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 13 of 19 MELCHER The Power Partners. Table 8: Vo versus Vext approximate values Vo nom Typ. values of R ext1 Typ. values of R ext2 [V] Vo [% of Vo nom ] Rext1 [kΩΩΩΩΩ ] Vo [% of Vo nom ] Rext2 [kΩΩΩΩΩ ] 3.3 90 0.47 100 ∞ 95 2.7 105 15 100 ∞ 110 6.8 5.1 90 3.3 100 ∞ 95 8.2 105 9.1 100 ∞ 110 3.9 Auxiliary Functions Shutdown Function 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 this function is not required, the shut-down pin should be left open-circuit.

• Converter operating: 2.0 to 20 V  Converter disabled: –10 to +0.7 V Adjustable Output Voltage  R input for single-output models and -0503-models  Trim input for double-output models As a standard feature, the single- and double-output models offer adjustable output voltage(s) by using the control input R or Trim. If the control input is left open-circuit, the output voltage is set to V o nom. For output voltages Vo > Vo nom, the minimum input voltage Vi min (see Electrical Input Data) increases proportionally to Vo/Vo nom. Single-output models with synchronous rectifier (G): The R input is referenced to the secondary side of the converter. Adjustment of the output voltage is possible by means of an external resistor connected between the R pin and either Vo+ or Vo–. Note: For models with synchronous rectifier the logic for Vo adjustment differs from other models with R input. Double-output models with Trim input: The Trim input is referenced to the primary side. The figure below shows the topology. Adjustment is possible trough either an external resistor or an external voltage source V ext. Fig. 16 Output voltage control for double-output models (with Trim input) by means of the Trim input. Fig. 15 Output voltage control for single-output models, -0503-models, and double-output models by means of the R input. All other models fitted with R-input: The R input is referenced to the secondary side of the converter. Adjustment of the output voltage is possible by means of either an external resistor or a voltage source. Fig. 14 Output voltage control for single-output models with synchronous rectifier. a) Adjustment by means of an external resistor R ext. Depending upon the value of the required output voltage, the resistor shall be connected: either: Between the R pin and Vo– to achieve an output voltage adjustment range of Vo ≈ 80 to 100 % of Vo nom. Vo nom – Vo or: Between the R pin and Vo+ to achieve an output voltage range of Vo ≈ 100 to 105% of Vo nom.

2.5 V  (Vo/Vo nom – 1)

b) Adjustment by means of an external voltage Vext between Vo– and R pin. The control voltage range is 1.96 to 2.62 V and allows for adjustment in the range of Vo ≈ 80 to 105% of Vo nom. Attempting to adjust the output below this range will cause the converter to shut down (hiccup mode). Note: Applying an external control voltage >2.75 V may damage the converter. R Vo+ Vo– Vi+ Vi– Rext2 Rext1 06131 Trim Vo1+ Vo2– Vext Vi+ Vi– Rext Vo1– Vo2+ 06089a Control circuit Vref 2.5 V R Vo+ Vo– Vext 4 kΩVref = 2.5 V Control logic Rext1 Rext2 06029e Vi– Vi+

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 14 of 19 MELCHER The Power Partners. Table 9b: Vo versus Vext for Vo = 75 to 105% Vo nom; typical values (Vi nom, Io1/2 = 0.5 Io1/2 nom) Vo [% Vo nom ] Vext [V] ≥105 0 102 1.6 95 4.5 85 9 75 13 Table 9a: Rext for Vo > Vo nom; approximate values (Vi nom, Io1, 2 = 0.5 Io1/2 nom) Vo [% Vo nom ] R ext [kΩΩΩΩΩ ] 105 to 108 (107 typically) 0 105 1.5 104 5.6 103 12 102 27 101 68 100 ∞ a) Adjustment by means of an external resistor R ext: Programming of the output voltage by means of an external resistor R ext is possible within 100 to 105% of Vo nom. R ext should be connected between the Trim pin and Vi–. Connection of R ext to Vi+ may damage the converter. The table below indicates suitable resistor values for typical output voltages under nominal conditions (V i nom, Io = 0.5 Io nom) with either parallel-connected outputs or equal-load conditions on both outputs. b) Adjustment by an external voltage source Vext: For programming the output voltage in the range 75 to 105% of Vo nom, a source Vext (0 to 20 V) is required, connected between the Trim pin and Vi–. The table below indicates values V o versus Vext (nominal conditions Vi nom, Io = 0.5 Io nom), with either parallel-connected outputs or equal load conditions on both outputs. Applying a control voltage >20 V will set the converter into a hiccup mode. Direct paralleling of the Trim pins of parallel connected converters is possible. typically occur in many installations, but especially in battery- driven mobile applications. Electromagnetic Compatibility (EMC) A suppressor diode together with an input filter forms an effective protection against high input transient voltages, which Table 10: Immunity type tests Phenomenon Standard Class Coupling Value Waveform Source Test In Perf. Level mode 2 applied Imped. procedure oper. crit. 3 Electrostatic IEC/EN 2 contact discharge 4000 Vp 1/50 ns 330 Ω 10 positive and yes B discharge 61000-4-2 (R pin open) 150 pF 10 negative to case 3 air discharge 8000 V p discharges (R pin open) Electromagnetic IEC /EN x 5 antenna 20 V/m 5 AM 80% n.a. 80 to 1000 MHz yes A field 61000-4-3 3 6 3 V/m 6 1 kHz ENV 50204 3 antenna 10 V/m PM, 50% duty n.a. 900 MHz yes A cycle, 200 Hz repetition frequ. Electrical fast IEC / EN 3 4 direct +i/–i 2000 V p 4 bursts of 5/50 ns 50 Ω 60 s positive yes A transients/burst 61000-4-4 5 kHz rep. rate 60 s negative transients with transients per 15 ms burst coupling mode duration and a 300 ms period Surges IEC/EN 2 +i/–i 1000 V p 1.2/50 µs 2 Ω 5 pos. and 5 neg. yes B 61000-4-5 3 1 2000 Vp 1 18 µF surges RF conducted IEC/EN 3 +i/–i 10 VAC AM modulated 150 Ω 0.15 to 80 MHz yes A immunity 61 000-4-6 2 6 3 VAC 6 80%, 1 kHz 1 External components required; see Fig. 6 and table 6. 2 i = input, o = output. 3 A = normal operation, no deviation from specs., B = temporary deviation from specs. possible. 4 Corresponds to the railway standard EN 50121-3-2:2006, table 9.3. 5 Corresponds to the railway standard EN 50121-3-2:2006, table 9.1.

6 Valid for 24IMS15 and 48IMS15

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 15 of 19 MELCHER The Power Partners. 20IMX15-12-12-8 Peak PMM 8000 PLUS Name: 20d12_1 Date: 24.04.06 Time: 16:23 20IMX15D12-con-p EN 55022 A dbµV 0.2 0.5 1 2 5 10 20 MHz Fig. 19 Example for external circuitry to comply with EN 55011/ EN 55032, Class B, conducted. This filter was designed for a 40IMX15-12-12-8. All capacitors are rated to 100 V, the chokes to 1.5 A. Conducted Emissions Fig. 17a Typ. disturbance voltage (peak) at pos. input according to EN 55011/032, measured at V i nom and Io nom. Output leads 0.1 m, twisted, input capacitors see table 11 (20IMX15-12-12-8) Fig. 17c Typ. disturbance voltage (peak) at pos. input according to EN 55011/032, measured at Vi nom and Io nom. Output leads 0.1 m, twisted, input capacitors see table 11 (110IMY15-12-12-8) Fig. 17b Typ. disturbance voltage (peak) at pos. input according to EN 55011/032, measured at V i nom and Io nom. Output leads 0.1 m, twisted, input capacitors see table 11 (40IMX15-12-12-8) Table 11: External capacitors across the input to comply with EN 55011/EN 55032, Class A, conducted; see fig. 17. Model Ceramic ML Electrolytic capacitor 20IMX15, 24IMS15 0.47 µF/50 V 220 µF/50 V 40IMX15, 48IMS15 0.33 µF/100 V 220 µF/100 V 110IMY15 0.15 µF/200 V 4.7 µF/200 V Fig. 18 Typ. disturbance voltage (peak) at input according to EN 55011/022, measured at V i nom and Io nom. Output leads 0.1 m, twisted, input filter as in fig. 19 (40IMX15-12-12-8) 40IMX15-12-12-8-Peak PMM 8000 PLUS Name: 40d12_4 Date: 02.05.06 Time: 09:58 EN 55022 B dbµV 40IMX15D12-F 0.2 0.5 1 2 5 10 20 MHz 40IMX15-12-12-8 Peak PMM 8000 PLUS Name: 40d12_1 Date: 24.04.06 Time: 15:2 40IMX15D12-con-p EN 55022 A dbµV 0.2 0.5 1 2 5 10 20 MHz dbµV 110IMY15-12-12-9 Peak PMM 8000 PLUS Name: 110d12_1 Date: 25.04.06 Time: 08:07 0.2 0.5 1 2 5 10 20 MHz 110IMY15-D12-con-p EN 55022 A 40IMX15 22 µH 22 nF 47 µF 330 nF47 µF Vi+ Vi– JM126

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 16 of 19 MELCHER The Power Partners. Temperatures Table 14: Temperature specifications Valid for air pressure of 800 to 1200 hPa (800 to 1200 mbar) Temperature -9 -8 Unit Characteristics Conditions min max min max TA Ambient temperature Operational 1 –40 71 –40 2, 3 85 °C TC Case temperature –40 95 –40 2, 3 105 TS Storage temperature Non operational –55 85 –55 85

1 See Thermal Considerations

2 Start-up at –55 °C, except models with synchronous rectifier SR

3 –25 °C for all models with synchronous rectifier SR with Revision < BA. Immunity to Environmental Conditions Table 12: Mechanical and climatic stress Test Method Standard Test Conditions Status Cab Damp heat IEC/EN 60068-2-78 T emperature: 40 ±2 •C Converter steady state MIL-STD-810D sect. 507.2 Relative humidity: 93 +2/-3 % not Duration: 56 days operating Ea Shock IEC/EN 60068-2-27 Acceleration amplitude: 50 g n = 490 m/s2 Converter (half-sinusoidal)MIL-STD-810D sect. 516.3 Bump duration: 11 ms operating Number of bumps: 18 (3 each direction) Fc Vibration IEC/EN 60068-2-6 Acceleration amplitude: 0.35 mm (10 to 60 Hz) Converter (sinusoidal) 5 g n = 49 m/s2 (60 to 2000 Hz) operating Frequency (1 Oct/min): 10 to 2000 Hz Test duration: 7.5 h (2.5 h each axis) Fda Random vibration IEC/EN 60068-2-35 Acceleration spectral density: 0.05 gn2/Hz Converter wide band Frequency band: 20 to 500 Hz operating reproducibility Acceleration magnitude: 4.9 g n rms high Test duration: 3 h (1 h each axis) -- Salt mist test EN 50155:2007, T emperature: 35 ±2 °C Converter sodium chloride clause 12.2.10 Duration: 16 h not (NaCl) solution class ST2 operating Reliability Table 13: MTBF Model Standard Ground Benign Ground Fixed Ground Mobile Unit TC = 40 °C TC = 40 °C TC = 70 °C TC = 50 °C 20IMX15-12-12-8 MIL-HDBK-217F 697 000 366 000 229 000 312 000 h 20IMX15-15-15-8 Belcore 2 345 000 1 172 000 632 000 317 000 48IMS15-05-05-9 MIL-HDBK-217F 535 000 283 000 179 000 245 000 110IMY15-05-8R MIL-HDBK-217F 485 000 255 000 167 000 223 000 Belcore 1 547 000 774 000 394 000 206 000

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 17 of 19 MELCHER The Power Partners. Mechanical Data Dimensions in mm (inches). Tolerances ±0.3 mm, unless otherwise noted. Fig. 20 Case IMX15, IMS15, IMY15 Material: Fortron 1140L6 Weight: <35 g Fig. 21 Open frame (option Z) European Projection 50.9 (2") 40.8 (1.6") S09011c 47 (1.85") 36.83 (1.45") Fixing hole for M2 or KA 22 self-tapping screws 5.08 (0.2") Measuring point of case temperature TC 3 bottom view 3 x 5.08 (0.2") 2.54 (0.1") ≥ 5 (0.19") 0.8 (0.03") for holes with ∅ 1.4 mm 48.3 (1.9") S90011c 38.8 (1.52") 3 x 5.08 (0.2") 6 x 5.08 (0.2") bottom view 2.54 (0.1") ≥5 (0.19") 0.8 (0.03") for holes with ∅ 1.4 mm

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 18 of 19 MELCHER The Power Partners. Safety and Installation Instructions Pin allocation The converters have been evaluated for:  Building in  Supplementary insulation input to output, based on their maximum input voltage (IMX15, IMS15)  Reinforced insulation input to output, based on their maximum input voltage (IMY15 models)  Pollution degree 2 environment (not option Z)  Connecting the input to a secondary circuit subject to a maximum transient rating of 1500 V (IMX15, IMS15)  Connecting the input to a secondary circuit subject to a maximum transient rating of 2500 V (IMY15) The converters are subject to manufacturing surveillance in accordance with the above mentioned UL standards and with ISO9001:2008. Railway Applications To comply with railway standards, all components are coated with a protective lacquer (except option Z). Protection Degree and Cleaning Liquids The protection degree of the converters is IP 40, except open- frame models (option Z). In order to avoid possible damage, any penetration of cleaning fluids should be prevented, since the power supplies are not hermetical sealed. 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. If necessary, the mother board must be cleaned, before fitting the open-frame converter. Note: Cleaning liquids may damage the adhesive joints of the ferrite cores. Isolation The electric strength test is performed in the factory as routine test in accordance with EN 50514 and IEC/EN 60950. The Company will not honor any warranty claims resulting from incorrectly executed electric strength field tests. Fig. 22 Footprint 10005 Bottom view Installation Instructions Installation 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. The converter must be connected to a secondary circuit. Do not open the converter. Ensure that a converter failure (e.g., by an internal short-circuit) does not result in a hazardous condition. Input Fuse To prevent excessive current flowing through the input supply lines in case of a malfunction an external fuse should be installed in a non-earthed input supply line; see table 4. Standards and Approvals The converters are approved according to IEC 60950-1 and UL/ CSA 60950-1 2nd Edition. 110IMY models are fitted with a CE mark. Table 15: Pin allocation Pin Standard and Option Z single double -0503-

1 Vi+ Vi+ Vi+

2 Vi– Vi– Vi–

3 - Trim n.c. 4S D S D S D 5- - - 6- - - 11 - Vo1+ Vo2+ 12 - Vo1– Go

13 Vo+ Vo2+ Vo1+

15 Vo– Vo2– Go

17 R n.c. R Table 16: Electric strength test voltages Characteristic Input to output Output toUnit IMS15 IMX15 IMY15 output Factory test ≥1 s 1.2 1.5 1 3.0 0.1 kVAC Equivalent DC voltage (1.7) (2.1) (4.2) 0.15 kVDC Insulation resistance >100 >100 >100 - M Ω at 500 VDC Partial discharge Consult the Company - kV extinction voltage 1 1.5 kVAC according to IEC 60950, sect. 6.2, Telecom equipment; type test with 1.5 kVAC / 60 s (IEE 802.3). IMX15 units produced before 2013 were tested only with 1.2 kVAC. 2 The test voltage between outputs is not applied as routine test.

IMX15, IMY15, IMS15 Series Data Sheet BCD20008-G Rev AE, 25-Aug-2017 Page 19 of 19 MELCHER The Power Partners. Description of Options Table 17: Survey of options Option Function of option Characteristic -9 Temperature range, NFND See table Temperatures specifications i Inhibit Rep laces the shutdown function with inverted logic Z Open frame See Mechanical Data Option -9 versus -8 IMX15 and IMY15 models with -9 (not for new designs) have a limited temperature range. Standard models with suffix -8 are rated up to T A = 85 °C; see table Temperature specifications. Option i: Inhibit Replaces the shut-down function with inverted logic. The output(s) of the converter may be enabled or disabled by Fig. 23 If the inhibit function is not used, the inhibit pin should be connected to Vi–. Vi+ Vi– i 06070 NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. 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. Copyright © 2017, Bel Power Solutions Inc. All rights reserved. belfuse.com/power-solutions Accessories Supports are available for chassis mounting CMBIMX15 (HZZ00626) and for DIN-rail mounting DMBIMX15 (HZZ00625). They exhibit the connectors and allow for placing different external components. For details see our Mounting Supports Data Sheet BCD20007 on our website. Fig. 24 DIN-rail mounting support DMBIMX15 means of a logic signal (TTL, CMOS, etc.) applied to the inhibit pin. No output voltage overshoot will occur, when the converter is turned on. If the inhibit function is not required, the inhibit pin should be connected to Vi– to enable the output (active low logic, fail safe). Voltage on pin i: Converter operating: –10 V to 0.8 V Converter inhibited: 2.4 V to V i max (<75 V) or pin i left open-circuit. Option Z Open frame and not lacquered. This option can be chosen for mounting onto a mother board, which is subject to be lac- quered. See Protection Degree and Cleaning Liquids (page 18). Option G or -G Products RoHS-compliant for all 6 substances. See RoHS- Compliant Models (page 3) for the correct denotation.