IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) 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 * 1200 to 3000 VAC I/O electric strength test * Emissions EN 55022 level A * Immunity to IEC/EN 61000-4-2,-3,-4,-5, and -6 * High efficiency (typ. 87%) * 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 40.6 1.6" 10.5 0.42" 51 2.0" * Double or reinforced insulation: 110IMY15 models Safety according to UL/CSA 60950 -1 1 Description The IMX15, IMS15, and IMY15 Series of board mountable 15Watt 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 telecommunications, 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 doubleoutput models. A shutdown input allows remote on/off. 1 110IMY15 models 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 converters have been approved by TUV and UL. Models 20IMS15/20IMX15 and 40IMS/40IMX15 provide supplementary insulation. Connected to a secondary circuit these models provide SELV outputs, even if the bus voltage at the converter 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 consideration 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 85 C in free air without using any potting material. For extremely high vibration environments the case has holes for screw mounting. Page Page 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. Table of Contents Description ........................................................................... 1 Model Selection ................................................................... 2 Functional Description ......................................................... 4 Electrical Input Data ............................................................. 5 Electrical Output Data .......................................................... 8 Auxiliary Functions ............................................................. 13 BCD20008-G Rev AB, 26-Feb-09 Electromagnetic Compatibility (EMC) ................................ 14 Immunity to Environmental Conditions .............................. 16 Mechanical Data ................................................................ 17 Safety and Installation Instructions .................................... 18 Description of Options ....................................................... 19 EC Declaration of Conformity ............................................ 20 Page 1 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Model Selection Table 1: Model Selection Output 1 Vo nom Io nom 1 [VDC] [A] 1 2 3 4 5 6 Output 2 Vo nom I o nom 1 [VDC] [A] Output power P o nom [W] Input voltage Vi min to Vi max [VDC] Efficiency 6 [%] Model Options 2 3.3 3.3 3.3 3.3 4.5 4.0 4.5 4.5 - - 14.9 13.2 14.9 14.9 8.4 to 36 5 16.8 to 75 3 16.8 to 75 3 50 to 150 4 84 80 85 84 20IMX15-03-8RG 40IMX15-03-8R 40IMX15-03-8RG 110IMY15-03-8RG -9, i, Z i, Z -9, i, Z i, Z 5.1 5.1 5.1 3.5 3.5 3.5 - - 17.5 17.5 17.5 8.4 to 36 5 16.8 to 75 3 50 to 150 4 86 87 86 20IMX15-05-8RG 40IMX15-05-8RG 110IMY15-05-8RG i, Z i, Z i, Z 5.1 5.1 5.1 5.1 5.1 2.3 2.7 2.5 2.7 2.5 - - 11.7 13.8 12.8 13.8 12.8 8.4 to 36 5 14 to 36 16.8 to 75 3 36 to 75 50 to 150 4 85 84 83 83 83 20IMX15-05-8R 24IMS15-05-9R 40IMX15-05-8R 48IMS15-05-9R 110IMY15-05-8R -9, i, Z i, Z -9, i, Z i, Z i, Z 5.1 5.1 5.1 5.1 5.1 1.35 1.6 1.5 1.6 1.5 3.3 3.3 3.3 3.3 3.3 1.35 1.6 1.5 1.6 1.5 11.3 13.5 12.6 13.5 12.6 8.4 to 36 5 14 to 36 16.8 to 75 3 36 to 75 50 to 150 4 84 82 84 82 82 20IMX15-0503-8R 24IMS15-0503-9R 40IMX15-0503-8R 48IMS15-0503-9R 110IMY15-0503-8R -9, i, Z i, Z -9, i, Z i, Z i, Z 5 5 5 5 5 1.3 1.4 1.4 1.4 1.4 5 5 5 5 5 1.3 1.4 1.4 1.4 1.4 13.0 14.0 14.0 14.0 14.0 8.4 to 36 5 14 to 36 16.8 to 75 3 36 to 75 50 to 150 4 86 85 86 83 86 20IMX15-05-05-8 24IMS15-05-05-9 40IMX15-05-05-8 48IMS15-05-05-9 110IMY15-05-05-8 -9, i, R, Z i, Z -9, i, R, Z i, Z i, Z 12 12 12 12 12 0.65 0.7 0.7 0.7 0.7 12 12 12 12 12 0.65 0.7 0.7 0.7 0.7 15.6 16.8 16.8 16.8 16.8 8.4 to 36 5 14 to 36 16.8 to 75 3 36 to 75 50 to 150 4 88 88 88 86 87 20IMX15-12-12-8 24IMS15-12-12-9 40IMX15-12-12-8 48IMS15-12-12-9 110IMY15-12-12-8 -9, i, Z i, Z -9, i, R, Z i, Z i, Z 15 15 15 15 15 0.5 0.56 0.56 0.56 0.56 15 15 15 15 15 0.5 0.56 0.56 0.56 0.56 15.0 16.8 16.8 16.8 16.8 8.4 to 36 5 14 to 36 16.8 to 75 3 36 to 75 50 to 150 4 88 88 88 86 87 20IMX15-15-15-8 24IMS15-15-15-9 40IMX15-15-15-8 48IMS15-15-15-9 110IMY15-15-15-8 -9, i, R, Z i, Z -9, i, R, Z i, Z i, R, Z 24 24 24 24 24 0.32 0.35 0.35 0.35 0.35 24 24 24 24 24 0.32 0.35 0.35 0.35 0.35 15.4 16.8 16.8 16.8 16.8 8.4 to 36 5 14 to 36 16.8 to 75 3 36 to 75 50 to 150 4 86 87 86 86 86 20IMX15-24-24-8 24IMS15-24-24-9 40IMX15-24-24-8 48IMS15-24-24-9 110IMY15-24-24-8 -9, i, R, Z i, Z -9, i, R, Z i, Z i, Z 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 other output should not exceed the difference to the total output power Po nom. See Description of Options. For availability contact Power-One. IMX/IMY models with option -9 are not recommended for new designs and are not RoHS-compliant. Short-time operation down to Vi = 14.4 V possible. Po reduced to approx. 85% of Po nom. Short-time operation down to Vi = 43.2 V possible. Po reduced to approx. 85% of Po nom. Initial start-up at 9 V, main output voltage regulation down to 8.4 V. Typ. efficiency at TA = 25 C, Vi nom, Io nom. RoHS-Compliant Models The type designation of RoHS-compliant models (compliant for the restriction of all six substances) for the IMX/IMS/IMY15 Series ends with "G". However, in single-output models with 3.3 V or 5.1 V output an extra dash (-) is added after the existing "G", which already BCD20008-G Rev AB, 26-Feb-09 Page 2 of 20 www.power-one.com (R) IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters signifies a synchronous rectifier at the output. This is an exception to Power-One's 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. As an example - 20IMX15-05-8R-G means a standard version with RoHS compliance for all six substances - 20IMX15-05-8RG means a synchronous rectifier version with RoHS lead-solder exemption - 20IMX15-05-8RG-G means a synchronous rectifier version with RoHS compliance for all six substances - 24IMS15-05-9R-G means a standard version with RoHS compliance for all six substances - 20IMX15-05-05-8RG means a double-output model with RoHS compliance for all six substances - 110IMY15-24-24-8RG means a double-output model with RoHS compliance for all six substances. Please ask Power-One for availability of RoHS-compliant models. (RoHS-compliant models IMX15 or IMY15 with option -9 are not available.) Part Number Description 40 IMX15 - 05 - 05 - 8 R G i Z -G xxix Input voltage range Vi 8.4 to 36 V ................................................ 20 14 to 36 V ................................................. 24 16.8 to 75 V .............................................. 40 36 to 75 V ................................................. 48 50 to 150 V ............................................. 110 Series .............................................. IMX15, IMS15, IMY15 Output voltage of output 1 ................ -03, -05, -12, -15, -24 Dash designates double-output models with two electrically isolated outputs ........................................... - 1 Output voltage of output 2 ...................... 03, 05, 12, 15, 24 Operating ambient temperature range TA -40 5 to 85 C .............................................. -8 -40 5 to 71 C .............................................. -9 6 Options and features: R input and magnetic feedback .................. R 2 3 Synchronous rectification ........................... G Inhibit ............................................................ i 2 4 Open frame .................................................. Z RoHS compliant for all 6 substances ........ -G 1 2 3 4 5 6 Not applicable to -0503 models. For lead times contact Power-One. Some models require a minimum order quantity. Standard for single-output and -0503- models. Option i excludes shutdown. Only -25 C for -RG models IMX15/IMY15 models with -9 are not recommended for new designs. Examples: 20 IMX15-05-05-8: DC-DC converter, input voltage 9 to 36 V, 2 electrically isolated outputs each providing 5 V, 1.3 A. 110 IMY15-0503-8R: DC-DC converter, input voltage 50 to 150 V, 2 outputs with common return providing +5.1 V, 1.5 A and +3.3 V, 1.5 A. 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, Power-One patent nos., company logo, date code, and serial number. BCD20008-G Rev AB, 26-Feb-09 Page 3 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Functional Description 03089 The IMX15/IMS15/IMY15 Series DC-DC converters are magnetic feedback-controlled flyback converters using current mode PWM (Pulse Width Modulation). The -05- and -0503output voltage models, as well as all double-output models fitted with option R, exhibit an active magnetic feedback loop via a pulse transformer, which results 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 of the output voltages in the range of approximately 80 to 105% of Vo nom using either an external resistor or an external voltage source. The voltage regulation on the double-output models without option R is achieved with a passive transformer feedback from the main transformer (see fig. 3). The output voltages can be adjusted via the Trim input. The Trim input is referenced to the primary side and allows for programming the output voltage in the range 100 to 105% of Vo nom via an external resistor or within 75 to 105% 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 shut-down input allows remote converter on/off. Overtemperature protection will disable the converter under excessive overload conditions with automatic restart. Vi+ 1 13 Vo1+ SD 4 15 Go PWM n.c. 3 11 Vo2+ Vi - 2 12 Go 2 x 2200 pF 17 R Fig. 2 Block diagram of -0503-models 03090 Vi+ 1 11 Vo1+ SD 4 12 Vo1- PWM Trim 3 13 Vo2+ Vi - 2 15 Vo2- 03039 Vi+ 1 13 Vo+ PWM 2 x 2200 pF SD 4 17 n.c. 15 Vo- Fig. 3 Block diagram of double-output models 2 x 2200 pF 1500 V Vi- 2 17 R Fig. 1 Block diagram of single-output models BCD20008-G Rev AB, 26-Feb-09 Page 4 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Electrical Input Data General conditions: - TA = 25 C, unless TC is specified. - Shut-down pin left open-circuit. - Trim or R input left open-circuit. Table 2a: Input data of IMX15 and IMY15 models Input 20IMX Characteristics range 1 Conditions min 958 Vi Input voltage Vi nom Nominal input voltage TA min - TA max Io = 0 - Io nom Vi sur Repetitive surge voltage Abs. max input (3 s) t startup Converter Switch on start-up time 2 SD high Worst case condition at Vi min, Io = Io nom t rise Rise time 2 typ 40IMX max min 36 20 typ 110IMY max min 16.8 5 6 75 40 40 0.25 0.5 5 Io nom, capac. load 10 150 100 0.25 0.5 V 168 0.25 0.1 5 20 max 50 5 7 110 0.1 Vi nom, resistive load typ Unit 10 0.5 0.1 5 20 s 10 ms 20 Ii o No-load input current Io = 0, Vi min - Vi max 40 20 10 mA I irr Reflected ripple current Io = 0 - Io nom 30 30 20 mApp I inr p Inrush peak current 3 Vi = Vi nom Ci Input capacitance for surge calculation VS-D- Shut-down voltage R S-D- Shut-down input resistance I -- Input current, when disabled Vi min - Vi max SD connected to Vi- fs Switching frequency Vi min - Vi max, Io = 0 - Io nom Vi RFI Input RFI level conducted EN 55022 4 SD 1 2 3 4 5 6 7 8 8 9 10 A 1.5 0.75 0.35 F 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 approx. 10 approx. 10 approx. 10 6 3 k 1 approx. 300 approx. 300 approx. 300 A A A mA kHz If Vo is set above Vo nom by use of the R or Trim input, Vi min will be proportionately increased. Measured with resistive and max. admissible capacitive load. Source impedance according to ETS 300132-2, version 4.3. 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. Input undervoltage lockout at typ. 80% of Vi min. Short time operation down to Vi min >14.4 V possible. Po reduced to approx. 85% of Po nom. Short time operation down to Vi min >43.2 V possible. Po reduced to approx. 85% of Po nom. Initial start-up at Vi = 9 V, main output voltage regulation down to 8.4 V BCD20008-G Rev AB, 26-Feb-09 Page 5 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Table 2b: Input Data of IMS15 models; general conditions as in table 2a Input 24IMS Characteristics Conditions min 14 Vi Input voltage range 1 Vi nom Nominal input voltage TA min - TA max Io = 0 - Io nom Vi sur Repetitive surge voltage Abs. max input (3 s) t startup Converter Switch on start-up time 2 SD high Worst case condition at Vi min, Io = Io nom t rise Rise time 2 typ 36 24 0.5 0.5 10 20 40 10 20 30 I inr p Inrush peak current 3 Vi = Vi nom Ci Input capacitance for surge calculation VS-D- Shut-down voltage R S-D- Shut-down input resistance I -- Input current, when disabled Vi min - Vi max SD connected to Vi- fs Switching frequency Vi min - Vi max, Io = 0 - Io nom Vi RFI Input RFI level conducted EN 55022 4 s 0.1 20 20 V 100 0.25 5 Io = 0 - Io nom 5 75 48 10 Io = 0, Vi min - Vi max 4 36 Io nom, capac. load Reflected ripple current 3 Unit max Vi nom, resistive load No-load input current 2 typ 0.1 Ii o 1 min 50 0.25 I irr SD 48IMS max 5 ms 30 mA mA pp 5 4.5 A 4 2 F Converter disabled -10 to 0.7 -10 to 0.7 V Converter operating open or 2 - 20 open or 2 - 20 approx. 10 approx. 10 1.2 3 1.2 k 3 approx. 300 approx. 300 A A mA kHz If Vo is set above Vo nom by use of the R or Trim input, Vi min will be proportionately increased. Measured with resistive and max. admissible capacitive load. Source impedance according to ETS 300132-2, version 4.3. 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. Input undervoltage lockout at typ. 80% of Vi min. BCD20008-G Rev AB, 26-Feb-09 Page 6 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) 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. A 04022b Model Fuse type 20IMX15 F 4.0 A 24IMS15 F 3.15 A 40IMX15, 48IMS15 F 2.0 A 110IMY15 F 1.0 A 4 3 Input Transient Voltage Protection 2 A built-in suppressor diode provides effective protection against input transients, which typically occur in many installations. 1 0 20 60 40 t 100 s 80 Table 5: Built-in transient voltage suppressor Type Fig. 4 Typical inrush current at Vi nom, Po nom versus time (40IMX15). Source impedance according to ETS 300132-2 at Vi nom. Vo trise Vo nom Peak power at 1 ms Pp [W] Peak pulse current Ipp [A] 40 1500 22 20IMX15 04008b 24IMS15 53 600 7.7 40IMX15 100 1500 9.7 48IMS15 100 600 4.1 110IMY15 168 600 0.5 For very high energy transients as for example to achieve compliance to IEC/EN 61000-4-5 or ETR 283 (see table Electromagnetic Immunity), an external inductor and a capacitor are required, see Fig. 6. The components should have similar characteristics as listed in table 6. t tstartup Breakdown voltage VBr nom [V] Fig. 5 Converter start-up and rise time 04036a L Vi+ 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 min Turn off max Unit min max 20IMX15 7.5 8 7 7.5 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 D Vi- Fig. 6 Example for external circuitry to achieve better transient immunity. The diode D is only necessary for 20IMX15 models. V Table 6: Components for external circuitry for IEC/EN 61000-4-5, level 3, or ETR 283 (19Pfl1) compliance. Model 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. BCD20008-G Rev AB, 26-Feb-09 C + Inductor (L) Capacitor (C) Diode (D) 20IMX15 68 H, 2.7 A 330 F, 63 V 1.5 k E47A 24IMS15 150 H, 1.3 A 150 F, 63 V - 40IMX15 220 H, 1.3 A 2 x 100 F, 100 V - 48IMS15 150 H, 1 A 100 F, 100 V - 110IMY15 330 H, 0.4 A 2 x 100 F, 200 V - Page 7 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Electrical Output Data We recommend connecting an external 1 F ceramic capacitor across the output pins. General conditions: - TA = 25C, 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 Characteristics Vo Output voltage Io nom Output current Conditions min Vi nom Io = 0.5 Io nom 3.25 20IMX Vi min to Vi max 40IMX /110IMY Io L Current limit 2 Vi nom, TC = 25 C Vo 93% Vo nom Vo Line/load regulation Vi min to Vi max, (0.1 to 1) Io nom Vo Output voltage noise Vi min to Vi max Io = I o nom Vo L Output overvoltage limit. 3 Co ext Admissible capacitive load Vo d Dynamic load regulation td Vo 1 2 3 4 5 Voltage deviat. Recovery time Temperature coefficient Vo /TC typ 5.1 V max min 3.35 5.05 typ 3.5 4.5 3.5 6.0 4.6 5 0 Vi min to Vi max (0.1 to 1) Io nom A 0.5 % 100 100 mVpp 60 130 115 4000 0 250 Vi nom Io nom 1/2 Io nom IEC/EN 61204 V 0.5 60 115 max 5.15 4.5 4 Unit 130 4000 250 % F mV 1 1 ms 0.02 0.02 %/K All models -RG (synchronous rectifier) have a minimum case and operating temperature of -25 C. 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). The overvoltage protection is via a primary side second regulation loop. It is not tracking with R control. BW = 20 MHz Measured with a probe according to EN 61204 BCD20008-G Rev AB, 26-Feb-09 Page 8 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Table 7b: Output data for -05-8R and -0503-8R models; general conditions as in table 7a Output 5.1 V Characteristics Conditions min Vo , Vo1 Output voltage Vo2 Vi nom Io = 0.5 Io nom 5.05 Io nom typ 5.1/3.3 V max min 5.15 5.0 3.13 typ 2.7 2 x 1.6 2.0 2.5 2 x 1.5 1.8 4 3.2 2.7 3.8 20IMX Vi nom Vo1 93% Vo nom 3.0 3.8 IoL/Io1L Io2L 40IMX/110IMY 3.6 2.9 4.0 Line/load regulation 5.1 V Vi min - Vi max, (0.1 - 1) Io nom 5.1 V 0.5 3.3 V Output voltage noise Vo L Output overvoltage limit 7 Co ext Admissible capacitive load Vo d Dynamic load regulation 1 2 3 4 5 6 7 A 24IMS/48IMS 3.5 Vo 1.6 4 40IMX/110IMY 24IMS/48IMS td V 2 x 1.35 20IMX Vi min - Vi max IoL, Io1L Io2L Vo1/2 5.12 3.46 2.3 Output current 1 IoL, Io1L Current limit 2 Io2L Vo Unit max Voltage deviat. Recovery time Temperature coefficient Vo/TC Vi min - Vi max Io = Io nom 4 - % - +3, -5 - 4.5 5 70 80 6 40 40 115 130 115 mVpp 130 % 4000 total: 4000 3 F Vi nom Io nom 1/2 Io nom IEC/EN 61204 250 150 mV 1 1 ms Vi min - Vi max (0.1 - 1) Io nom 0.02 0.02 %/K 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. The current limit is primary-side controlled. For -0503-models: total capacitance of both outputs. For -0503-models: Conditions for specified output. Other output loaded with constant current Io = 0.5 Io nom. BW = 20 MHz Measured with a probe according to EN 61204 The overvoltage protection is via a primary side second regulation loop. It is not tracking with R control. BCD20008-G Rev AB, 26-Feb-09 Page 9 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Table 7c: Output data for double-output models; general conditions as in table 7a 2x5V Output Characteristics min 5.05 11.88 12.12 14.85 15.15 23.70 24.30 4.95 5.05 11.90 12.10 14.88 15.12 23.80 24.20 4.94 5.06 11.84 12.16 14.80 15.20 23.64 24.36 5.06 11.88 12.12 14.85 15.15 23.75 24.25 Vo2 Output 2 24IMS/48IMS other models 4.94 Io nom Output current 20IMX Vi min - Vi max other models Current limit 2, 4 IoL 20IMX 24IMS/48IMS Vi nom Vo1 93% Vo nom 40IMX/110IMY Vo1 Line/load regulation output 1 Vo2 output 2 Vo1/2 Output voltage noise Vo L Output overvoltage limit 7 Co ext Admissible capacitive load 3 Vo d Dynamic load regulation td Uo 1 2 3 4 5 6 7 Voltage deviat. Recovery time Temperature coefficient Vo/TC Vi min - Vi max, Io nom typ max min typ max Unit 4.95 24IMS/48IMS 1 2 x 24 V Conditions Output 1 typ max min 2 x 15 V Vi nom Io = 0.5 Io nom Vo1 other models 2 x 12 V min typ max 2 x 1.3 2 x 0.65 2 x 0.50 2 x 0.32 2 x 1.4 2 x 0.70 2 x 0.56 2 x 0.35 3.0 1.6 1.3 0.85 3.5 1.9 1.6 0.95 3.2 1.7 1.4 0.90 1 1 1 1 A % Vi nom, (0.1 - 1) Io nom 3 3 3 3 5 80 120 150 240 6 40 60 70 120 Vi min - Vi max Io = Io nom Min. load 1% 115 130 115 4000 Vi nom Io nom 1/2 Io nom Vi min - Vi max (0.1 - 1) Io nom 130 680 250 0.02 130 470 300 1 115 115 130 180 300 V mVpp % mF 600 mV 1 1 1 ms 0.02 0.02 0.02 %/K 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. The current limit is primary-side controlled. Measured with both outputs connected in parallel. Conditions for specified output. Other output loaded with constant current Io = 0.5 Io nom . BW = 20 MHz Measured with a probe according to EN 61204 The overvoltage protection is via a primary side second regulation loop, not tracking with Trim or R control. BCD20008-G Rev AB, 26-Feb-09 Page 10 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Thermal Considerations If a converter, mounted on a PCB, is located in free, quasistationary air (convection cooling) at the indicated maximum ambient temperature TA 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 TC (see Mechanical Data) will approach the indicated value TC max after the warmup 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. TA max is therefore only an indicative value. occur due to a failure in the control logic. This protection circuit is not designed to withstand externally applied overvoltages. Short Circuit Behaviour The current limit characteristic shuts down the converter, whenever a short circuit is applied to its output. It acts selfprotecting, and automatically recovers after removal of the overload condition (hiccup mode). Vo [%] overload short-circuit condition 100 switch-off 70 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 TC remains within the limits stated in the table Temperature specifications. 0 05041b 0.3 s t Fig. 8 Overload switch-off (hiccup mode); typical values Po /Po max JM017 Parallel and Series Connection 1.0 The outputs of one or several single- or double-output models 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. 0.8 0.5 m/s = 100 LFM 0.6 natural cooling 0.4 Both outputs of the same converter with equal output voltage (e.g., 5 V / 5 V) can be put in parallel and will share their output currents almost 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. 0.2 0 20 40 60 80 100 C TA Fig. 7 Maximum output power versus ambient temperature Typical Performance Curves 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 V 5.5 05166a 5.0 The output of single-output models as well as -0503- and -0505-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. Doublel-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 BCD20008-G Rev AB, 26-Feb-09 General conditions: - TA = 25 C, unless TC is specified. - Shutdown pin left open-circuit. - Trim or R input not connected. 4.5 4.0 3.5 3.0 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4 A Fig. 9 Vo versus Io (typ) of converters with Vo = 5.1 V (110IMY15-05-8R) Page 11 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) % V 05020a 13 05168a 90 Vi min 12 80 11 Vi nom 10 Vi max 70 9 8 7 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 A 60 0.25 Io Fig. 10 Vo versus Io (typ.) of double-output models (2 x 12 V), with both outputs in parallel (110 IMY15-12-12-8) 1 Po/Po nom 0.75 Fig. 12b Efficiency versus input voltage and load. Typical values (110IMY15-12-12-8) % V 13.5 05021a 05040a 90 13 12.5 0.5 Vi nom Vi max Vi min 80 Io2 = 0.035 A 70 12 Io2 = 0.35 A 60 11.5 11 0.3 0.2 0.1 0.4 0.5 0.6 0.7 A Io1 50 0.5 0.25 Fig. 11 Cross load regulation Vo1 versus Io1 (typ.) for various Io2 (2 x 12 V). 1 Io1/Io1 nom 0.75 Fig. 12c Efficiency versus input voltage and load. Typical values (48IMS15-12-12-9) % 90 05167a Vi min V 05039-X15a Vi nom 14 80 13 Vi max Vo2 Vo1 12 70 11 60 0.25 0.5 0.75 1 Po/Po nom Fig. 12a Efficiency versus input voltage and load. Typical values (40IMX15-12-12-8). BCD20008-G Rev AB, 26-Feb-09 10 0 0.25 0.5 0.75 1 1.25 1.5 Io1/Io1 nom Fig. 13 Flexible load distribution on double-outputs models with option R (110IMY15-12-12-8R): Load variation from 0 to 150% of Io1 nom on output 1; output 2 loaded with 50% of Io2 nom. Page 12 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) a) Adjustment by means of an external resistor Rext. Auxiliary Functions Shutdown Function Depending upon the value of the required output voltage, the resistor shall be connected: The outputs of the converters may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied to the shutdown pin. If this function is not required, the shut-down pin should be left open-circuit. either: Between the R pin and Vo- to achieve an output voltage adjustment range of Vo 80 to 100 % of Vo nom. Vo Rext1 4 k * --------- Vo nom - Vo * Converter operating: 2.0 to 20 V * Converter disabled: -10 to +0.7 V or: Between the R pin and Vo+ to achieve an output voltage range of Vo 100 to 105 % of Vo nom. (Vo - 2.5V) Rext2 4 k * ------------------ 2.5 V * (Vo/Vo nom - 1) Adjustable Output Voltage * R input for single-output models and -0503-models b) Adjustment by means of an external voltage Vext between Vo- and R pin. * Trim input for double-output models * R input as option R for most 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 Vo 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-. 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. Vo * 2.5 V Vext -------- 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. 06029b Vi+ Note: For models with synchronous rectifier the logic for Vo adjustment differs from other models with R input. Vo+ R 06131 Vo+ Vi+ Rext 2 4 k Vref = 2.5 V + Control logic Rext1 Vi- Vext Rext1 - Vo- R Rext2 Vi- Fig. 15 Output voltage control for single-output models, -0503models, and double-output models fitted with option R by means of the R input. Vo- Fig. 14 Output voltage control for single-output models with synchronous rectifier. 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 Vext. Table 8: Vo versus Vext approximate values Vo nom [V] 3.3 5.1 Typ. values of Rext1 ] Vo [% of Vo nom] Rext1 [k 90 95 100 90 95 100 Typ. values of Rext2 ] Vo [% of Vo nom] Rext2 [k 0.47 2.7 3.3 8.2 100 105 110 100 105 110 06089a 15 6.8 9.1 3.9 Vi+ Vo1+ Trim Vo1- + Vext - Rext Vi- Control circuit Vref 2.5 V Vo2+ Vo2- 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. BCD20008-G Rev AB, 26-Feb-09 Fig. 16 Output voltage control for double-output models (without option R) by means of the Trim input. Page 13 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) b) Adjustment by an external voltage source Vext: a) Adjustment by means of an external resistor Rext: 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 Vo 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. Programming of the output voltage by means of an external resistor Rext is possible within 100 to 105% of Vo nom. Rext should be connected between the Trim pin and Vi-. Connection of Rext to Vi+ may damage the converter. The table below indicates suitable resistor values for typical output voltages under nominal conditions (Vi nom, Io = 0.5 Io nom) with either parallel-connected outputs or equal-load conditions on both outputs. Table 9a: Rext for Vo > Vo nom; approximate values (Vi nom, Io1, 2 = 0.5 Io1/2 nom) Vo [% Vo nom ] ] Rext [k 105 to 108 (107 typically) 105 104 103 102 101 100 0 1.5 5.6 12 27 68 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 1.6 4.5 9 13 102 95 85 75 Electromagnetic Compatibility (EMC) A suppressor diode together with an input filter forms an effective protection against high input transient voltages, which typically occur in many installations, but especially in batterydriven mobile applications. Electromagnetic Immunity Table 10: Immunity type tests Phenomenon Standard Class Level Coupling mode 2 Value applied Waveform Source Imped. Test procedure In oper. Per- 3 form. Electrostatic discharge to case IEC/EN 61000-4-2 2 contact discharge (R pin open) 4000 Vp 1/50 ns 330 yes B 3 air discharge (R pin open) 8000 Vp 10 positive and 10 negative discharges Electromagnetic field IEC/EN 61000-4-3 35 34 antenna 20 V/m 3 V/m 4 AM 80% 1 kHz n.a. 80 to 1000 MHz yes A ENV 50204 3 antenna 10 V/m PM, 50% duty cycle, 200 Hz repetition frequ. n.a. 900 MHz yes A Electrical fast transients/burst IEC/EN 61000-4-4 4 34 direct +i/-i 4000 Vp 2000 Vp 4 bursts of 5/50 ns 5 kHz rep. rate transients with 15 ms burst duration and a 300 ms period 50 60 s positive 60 s negative transients per coupling mode yes B A4 Surges IEC/EN 61000-4-5 2 31 +i/-i 1000 Vp 2000 Vp 1 1.2/50 s 2 5 pos. and 5 neg. surges yes B RF conducted immunity IEC/EN 61000-4-6 3 24 +i/-i 10 VAC 3 VAC 4 AM modulated 80%, 1 kHz 150 0.15 to 80 MHz yes A 1 2 3 4 5 External components required; see Fig. 6 and table 6. i = input, o = output. A = normal operation, no deviation from specs., B = temporary deviation from specs. possible. Valid for 24IMS15 and 48IMS15 Corresponds to the railway standard EN 50121-3-2:2000, table 9.1. BCD20008-G Rev AB, 26-Feb-09 Page 14 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Table 11: Input capacitors to comply with EN 55011/ EN 55022, level A, conducted; see fig. 17a, b, c Conducted Emissions PMM 8000 PLUS Name: 20d12_1 dbV Date: 24.04.06 Time: 16:23 20IMX15-12-12-8 Peak Model 80 20IMX15, 24IMS15 40IMX15, 48IMS15 110IMY15 EN 55022 A 20IMX15D12-con-p 60 40 Ceramic ML Electrolytic capacitor 0.47 F/50 V 0.33 F/100 V 0.15 F/ 200 V 220 F/50 V 220 F/100 V 4.7 F/200 V 20 0 0.2 0.5 1 2 5 10 20 MHz Fig. 17a Typ. disturbance voltage (peak) at pos. input according to EN 55011/022, measured at Vi nom and Io nom.Output leads 0.1 m, twisted, input capacitors see table 11 (20IMX15-12-12-8R) PMM 8000 PLUS Name: 40d12_1 dbV Date: 24.04.06 Time: 15:2 40IMX15-12-12-8 Peak 80 EN 55022 A 40IMX15D12-con-p 60 40 Fig. 18 Example for external circuitry to comply with EN 55011/ EN 55022, level B, conducted. This filter was designed for a 40IMX15 model. All capacitors are rated to 100 V, the chokes to 1.5 A 20 0 0.2 0.5 1 2 5 10 20 MHz PMM 8000 PLUS Name: 40d12_4 dbV EN 55022 B 60 40IMX15D12-F Fig. 17b Typ. disturbance voltage (peak) at pos. input according to EN 55011/022, measured at Vi nom and Io nom. Output leads 0.1 m, twisted, input capacitors see table 11 (40IMX15-12-12-8R) Date: 02.05.06 Time: 09:58 40IMX15-12-12-8-Peak 40 20 PMM 8000 PLUS Name: 110d12_1 dbV Date: 25.04.06 Time: 08:07 Peak 110IMY15-12-12-9 80 0 0.2 0.5 1 2 5 10 20 MHz EN 55022 A 110IMY15-D12-con-p 60 40 Fig. 19 Typ. disturbance voltage (peak) at pos. input according to EN 55011/022, measured at Vi nom and Io nom. Output leads 0.1 m, twisted, input filter as in fig. 18 (40IMX15-12-12-8R) 20 0 0.2 0.5 1 2 5 10 20 MHz Fig. 17c Typ. disturbance voltage (peak) at pos. input according to EN 55011/022, measured at Vi nom and Io nom. Output leads 0.1 m, twisted, input capacitors see table 11 (110IMY15-12-12-8R) BCD20008-G Rev AB, 26-Feb-09 Page 15 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Immunity to Environmental Conditions Table 12: Mechanical and climatic stress Test Method Standard Test Conditions Status Damp heat steady state IEC/EN 60068-2-78 MIL-STD-810D sect. 507.2 Temperature: Relative humidity: Duration: 40 2 C Ea 1 Shock (half-sinusoidal) IEC/EN 60068-2-27 MIL-STD-810D sect. 516.3 Acceleration amplitude: Bump duration: Number of bumps: IMX/IMY15: 100 gn; IMS15: 50 gn IMX/IMY15: 6 ms; IMS15: 11 ms 18 (3 each direction) Converter operating Eb Bump (half-sinusoidal) IEC/EN 60068-2-29 MIL-STD-810D sect. 516.3 Acceleration amplitude: Bump duration: Number of bumps: IMX/IMY15: 40 gn; IMS15: 25 gn IMX/IMY15: 6 ms; IMS15: 11 ms 6000 (1000 each direction) Converter operating Fc Vibration (sinusoidal) IEC/EN 60068-2-6 Acceleration amplitude: Converter operating Frequency (1 Oct/min): Test duration: 0.35 mm (10 to 60 Hz) 5 gn = 49 m/s2 (60 to 2000 Hz) 10 to 2000 Hz 7.5 h (2.5 h each axis) Cab Converter not operating 93 +2/-3 % 56 days Fda Random vibration IEC/EN 60068-2-35 wide band reproducibility high Acceleration spectral density: Frequency band: Acceleration magnitude: Test duration: 0.05 gn2/Hz 20 to 500 Hz 4.9 gn rms 3 h (1 h each axis) Converter operating Kb Salt mist, cyclic (sodium chloride NaCl solution) Concentration: Duration: Storage: Storage duration: Number of cycles: 5% (30 C) 2 h per cycle 40 C, 93% rel. humidity 22 h per cycle 3 Converter not operating IEC/EN 60068-2-52 1 Covers also EN 50155 / 61373 category 1, class B, body mount (= chassis of a coach) Temperatures Table 14: Temperature specifications Valid for air pressure of 800 to 1200 hPa (800 to 1200 mbar) Temperature -9 Characteristics Conditions TA Ambient temperature TC Case temperature TS Storage temperature 1 2 3 Operational 1 Non operational -8 min max min Unit max -40 3 71 -40 2 3 85 -40 3 95 -40 2 3 105 -55 100 -55 C 105 See Thermal Considerations Start-up at -55 C, except -RG models (synchronous rectifier) -25 C for all -RG models (synchronous rectifier) Reliability Table 13: MTBF Model Standard Ground Benign TC = 40 C 20IMX15-12-12-8 MIL-HDBK-217F 20IMX15-15-15-8 Belcore 48IMS15-05-05-9 110IMY15-05-8R Ground Fixed Ground Mobile TC = 40 C TC = 70 C TC = 50 C 697 000 366 000 229 000 312 000 2 345 000 1 172 000 632 000 317 000 MIL-HDBK-217F 535 000 283 000 179 000 245 000 MIL-HDBK-217F 485 000 255 000 167 000 223 000 1 547 000 774 000 394 000 206 000 Belcore BCD20008-G Rev AB, 26-Feb-09 Page 16 of 20 Unit h www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Mechanical Data Dimensions in mm. 45.72 (1.8") 10.5 (0.41") 0.8 (0.03") 12 13 1 European Projection 36.83 (1.45") 11 5.08 (0.2") 40.65 (1.6") 2.54 (0.1") S09011a 2 3 4 15 bottom view 17 Fixing hole for M2 or KA 22 self-tapping screws 47 (1.85") 50.8 (2") Measuring point of case temperature TC Fig. 20 Case IMX15, IMS15, IMY15 Weight: <35 g 0.8 (0.03") 10.5 (0.41") 45.72 (1.8") S90011a 13 1 2 15 3 4 38.8 (1.52") 12 6 x 5.08 (0.2") 3 x 5.08 (0.2") o 2.54 11 bottom view 17 48.3 (1.9") Fig. 21 Open frame (option Z) BCD20008-G Rev AB, 26-Feb-09 Page 17 of 20 www.power-one.com IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters (R) Safety and Installation Instructions Standards and Approvals Pin allocation The converters have been approved according to UL/CSA 60950-1 and IEC/EN 60950:2000. 110IMY models are fitted with a CE mark. Table 15: Pin allocation Pin The converters have been evaluated for: * Building in Standard and Option Z single double -0503- 1 Vi+ Vi+ Vi+ 2 Vi- Vi- Vi- 3 - Trim n.c. 4 SD SD SD 5 - - - 6 - - - 11 - Vo1+ Vo2+ 12 - Vo1- Go 13 Vo+ Vo2+ Vo1+ 15 Vo- Vo2- Go 17 R n.c. R * 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 standard and with ISO9001:2000. Railway Applications To comply with railway standards, all components are coated with a protective lacquer (except option Z). Protection Degree 10005 The protection degree of the converters is IP 40, except openframe models (option Z). 11 12 1 Cleaning Agents 13 In order to avoid possible damage, any penetration of cleaning fluids should be prevented, since the power supplies are not hermetical sealed. Bottom view 2 3 15 However, the open-frame models (option Z) leave the factory unlacquered and may be cleaned and lacquered by the customer, for instance together with the mother board. Consult Power-One for the types of cleaning agents. 4 17 Fig. 22 Footprint Isolation 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. Connection to the system shall be made via a printed circuit board with hole diameters of 1.4 mm 0.1 mm for the pins. The converter must be connected to a secondary circuit. The electric strength test is performed in the factory as routine test in accordance with EN 50116 and IEC/EN 60950, and should not be repeated in the field. Power-One will not honor any warranty claims resulting from electric strength field tests. Table 16: Electric strength test voltages Characteristic Input to output IMX/IMS15 IMY15 Output to output Unit Factory test 1 s 1.2 3.0 0.1 kVAC Ensure that a converter failure (e.g., by an internal shortcircuit) does not result in a hazardous condition. Equivalent DC voltage 1.5 4.0 0.15 kVDC Insulation resistance at 500 VDC >100 >100 - M Input Fuse Partial discharge extinction voltage - kV Do not open the converter. 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 . BCD20008-G Rev AB, 26-Feb-09 Page 18 of 20 Consult Power-One www.power-one.com (R) IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters Description of Options Table 17: Survey of options Option Function of option Characteristic -9 Temperature range NFND See table Temperatures specifications R R-input and magnetic feedback i Inhibit 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. As a standard, these models with suffix -8 are rated up to TA = 85 C; see table Temperature specifications. should be connected to Vi - to enable the output (active low logic, fail safe). Voltage on pin i: Converter operating: Converter inhibited: -10 V to 0.8 V 2.4 V to Vi max (<75 V) or pin i left open-circuit: Option R Magnetic feedback from the output for closer regulation of the output voltage Vo1 of double output units (standard for single output units and -0503- models). It enables the adjustment of the output voltages via the R-input (pin 17) on the secondary side by an external resistor or an external voltage source. This function is described in Auxiliary Functions. 06070 Vi+ i Furthermore, the output 1 is accurately regulated like the single output models. The Trim input (pin 3) is not connected. Vi - Option i: Inhibit Excludes the shut-down function. The output(s) 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 converter is turned on. If the inhibit function is not required, the inhibit pin Fig. 23 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. BCD20008-G Rev AB, 26-Feb-09 Page 19 of 20 www.power-one.com (R) IMX15/IMS15/ IMY15 DC-DC Series Data Sheet 15 -Watt DC-DC Converters EC Declaration of Conformity We Power-One AG Ackerstrasse 56, CH-8610 Uster declare under our sole responsibility that 110IMY15 DC-DC converters carrying the CE-mark are in conformity with the provisions of the Low Voltage Directive (LVD) 73/23/EEC of the European Communities. Conformity with the directives is presumed by conformity with the following harmonised standards: * EN 61204:1995 (= IEC 61204:1993, modified) Low-voltage power supply devices, DC output - Performance characteristics and safety requirements * EN 60950:2000 (=IEC 60950:2000) Safety of information technology equipment. The installation instructions given in the corresponding data sheet describe correct installation leading to the presumption of conformity of the end product with the LVD. All 110IMY15 DCDC converters are components, intended exclusively for inclusion within other equipment by an industrial assembly operation or by professional installers. They must not be operated as standalone products. Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC (EMC Directive) needs not to be declared. Nevertheless, guidance is provided in the data sheets on how conformity of the end product with EMC standards under the responsibility of the installer can be achieved, from which conformity with the EMC Directive can be presumed. Uster, 5 Oct. 2005 Power-One AG Rolf Baldauf Vice-President Engineering BCD20008-G Rev AB, 26-Feb-09 Page 20 of 20 Johann Milavec Director Projects and IP www.power-one.com