IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Features * RoHS lead-free-solder and lead-solder-exempted products are available. * Input voltage ranges up to 150 VDC * 1 or 2 isolated outputs up to 48 V * 1200 to 2000 VAC I/O electric strength test * Extremely wide input voltage ranges * Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6 * High efficiency (typ. 84%) * Input undervoltage lockout * Inhibit input, adjustable output voltages * Flex power: flexible load distribution on outputs * Outputs no-load, overload, and short-circuit proof * High reliability and no derating * Operating ambient temperature - 40 to +85 C * Thermal protection * Supplementary insulation 25.4 1.0" 10.5 0.42" * 2" x 1" case with 10.5 mm profile 50.8 2.0" Safety according to IEC/EN 60950 and UL 60950 1 1 70/110IMX7 models Description The IMX7/IMS7 Series of board-mountable 7 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 telecom, where variable input voltages or high transient voltages are prevailent. Covering a total input voltage range from 8.4 V to 150 V with six different models, the converters are available with single and electrically-isolated double outputs from 3.3 up to 48 V with flexible load distribution on double outputs. A shutdown input allows remote on/off. Features include efficient input and output filtering with good transient and surge protection, low output ripple and noise, consistently high efficiency over the entire input voltage range, and high reliability as well as excellent dynamic response to load and line changes. The converters provide supplementary insulation with SELV outputs as for instances required in battery-supported systems, where the bus voltage may exceed the SELV limit of Table of Contents 60 V. The converters have been approved by UL. In addition, 70IMX7 and 110IMX7 models are CE-marked. The circuitry is comprised of integral planar magnetics. All components are automatically assembled and securely soldered onto a single PCB without any wire connections. Magnetic feedback ensures maximum reliability and repeatability in the control loop over all operating conditions. Careful considerations of possible thermal stresses ensure the absence of hot spots, providing long life in environments, where temperature cycles are a reality. 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. Several options, such as open-frame, provide a high level of application-specific engineering and design-in flexibility. Page Page Description ............................................................................. 1 Model Selection ..................................................................... 2 Functional Description ........................................................... 3 Electrical Input Data ............................................................... 4 Electrical Output Data ............................................................ 7 Auxiliary Functions ................................................................. 9 Electromagnetic Compatibility (EMC) .................................. 11 Immunity to Environmental Conditions ................................ 12 Mechanical Data .................................................................. 13 Safety and Installation Instructions ...................................... 13 Description of Options ......................................................... 14 EC Declaration of Conformity .............................................. 15 BCD20007-G Rev AD, 4-Nov-09 Page 1 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Model Selection Table 1: Model Selection Output 1 Vo1 nom Io1 nom [ V] [A] 1 1 2 3 4 Output 2 Vo2 nom Io2 nom [ V] [A] 1 Output power Po nom [W ] Input voltage range [ V] Efficiency typ [%] Model Options 2 3.3 3.3 3.3 3.3 3.3 3.3 1.5 1.5 1.5 1.5 1.5 1.5 - - 5 5 5 5 5 5 8.4 - 36 14 - 36 16.8 - 75 3 36 - 75 40 - 121 60 - 150 79 79 81 79 79 79 20IMX7-03-8 24IMS7-03-9 4 40IMX7-03-8 48IMS7-03-9 4 70IMX7-03-8 110IMX7-03-8 Z, G Z, G Z, G Z, G Z, G Z, G 5.1 5.1 5.1 5.1 5.1 5.1 1.2 1.2 1.2 1.2 1.2 1.2 - - 6.1 6.1 6.1 6.1 6.1 6.1 8.4 - 36 14 - 36 16.8 - 753 36 - 75 40 - 121 60 - 150 80 81 81 82 80 80 20IMX7-05-8 24IMS7-05-9 40IMX7-05-8 48IMS7-05-9 70IMX7-05-8 110IMX7-05-8 Z, G Z, G Z, G Z, G Z, G Z, G 12 12 0.6 0.6 - - 7.2 7.2 14 - 36 36 - 75 84 84 24IMS7-12-9C 4 48IMS7-12-9C 4 Z, G Z, G 15 15 0.48 0.48 - - 7.2 7.2 14 - 36 36 - 75 84 84 24IMS7-15-9C 4 48IMS7-15-9C 4 Z, G Z, G 5 5 5 5 5 5 0.6 0.7 0.7 0.7 0.7 0.7 5 5 5 5 5 5 0.6 0.7 0.7 0.7 0.7 0.7 6 7 7 7 7 7 8.4 - 36 14 - 36 16.8 - 75 3 36 - 75 40 - 121 36 - 75 82 83 83 83 82 82 20IMX7-05-05-8 24IMS7-05-05-9 40IMX7-05-05-8 48IMS7-05-05-9 70IMX7-05-05-8 110IMX7-05-05-8 Z, G Z, G Z, G Z, G Z, G Z, G 12 12 12 12 12 12 0.25 0.3 0.3 0.3 0.3 0.3 12 12 12 12 12 12 0.25 0.3 0.3 0.3 0.3 0.3 6 7.2 7.2 7.2 7.2 7.2 8.4 - 36 14 - 36 16.8 - 753 36 - 75 40 - 121 60 - 150 84 84 84 84 83 84 20IMX7-12-12-8 24IMS7-12-12-9 40IMX7-12-12-8 48IMS7-12-12-9 70IMX7-12-12-8 110IMX7-12-12-8 Z, G Z, G Z, G Z, G Z, G Z, G 15 15 15 15 15 15 0.2 0.24 0.24 0.24 0.24 0.24 15 15 15 15 15 15 0.2 0.24 0.24 0.24 0.24 0.24 6 7.2 7.2 7.2 7.2 7.2 8.4 - 36 14 - 36 16.8 - 753 36 - 75 40 - 121 60 - 150 84 84 84 84 83 84 20IMX7-15-15-8 24IMS7-15-15-9 40IMX7-15-15-8 48IMS7-15-15-9 70IMX7-15-15-8 110IMX7-15-15-8 Z, G Z, G Z, G Z, G Z, G Z, G 24 24 24 24 24 24 0.13 0.15 0.15 0.15 0.15 0.15 24 24 24 24 24 24 0.13 0.15 0.15 0.15 0.15 0.15 6.2 7.2 7.2 7.2 7.2 7.2 8.4 - 36 14 - 36 16.8 - 753 36 - 75 40 - 121 60 - 150 84 84 84 84 83 84 20IMX7-24-24-8 24IMS7-24-24-9 40IMX7-24-24-8 48IMS7-24-24-9 70IMX7-24-24-8 110IMX7-24-24-8 Z, G Z, G Z, G Z, G Z, G Z, G Flexible load distribution on double outputs possible. If only one output voltage is required, connect both outputs of double-output models in parallel. Operation at low input voltage possible, if Po is reduced to approx. 80% of Po nom at Vi min = 14.1 V. Not for new designs BCD20007-G Rev AD, 4-Nov-09 Page 2 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Part Number Description Input voltage range Vi 40 IMX7 - 05 - 05 -8 Z G 8.4 - 36 V .............................................. 20 14 - 36 V ............................................... 24 16.8 - 75 V ............................................ 40 36 - 75 V ............................................... 48 40 - 121 V ............................................. 70 60 - 150 V ........................................... 110 Series .............................................................. IMX7, IMS7 Output voltage of output 1 ...................... 03, 05, 12, 15, 24 Output voltage of output 2 ............................ 05, 12, 15, 24 Operating ambient temperature TA -40 to 85 C ............................................... -8 -40 to 71 C ............................................... -9 Options: Open frame .................................................. Z RoHS compliant for all six substances ......... G Example: 40IMX7-05-05-8ZG: DC-DC converter, input voltage range 16.8 - 75 V, 2 outputs providing each 5 V, 700 mA, temperature range - 40 to 85 C, open frame, RoHS compliant for all six substances. Obsolete options: Surface mount version ............................... M C-pinout ...................................................... C Functional Description 03042a Vi+ 1 The IMX7/IMS7 Series DC-DC converters are feedbackcontrolled flyback converters using current mode PWM (Pulse Width Modulation). In the case of single-output models, the output is directly sensed and fed back to the primary control circuit via a pulse transformer, resulting in tight regulation of the output voltage. The R input is referenced to the secondary side and allows for programming the output voltages in the range 75 to 105% of Vo nom, using either an external resistor or an external voltage source. Trim (R) 4 Vi+ 1 11 Vo+ PWM i 3 10 Vo- 2 x 2200 pF 1500 V 12 Vi- 2 13 R n.c. 4 14 n.c. Fig. 1 Block diagram for single-output models with standard pinout. BCD20007-G Rev AD, 4-Nov-09 10 Vo1- PWM i 3 13 Vo2+ Vi - 2 12 Vo2- For double-output models, the output voltage is sensed by a separate transformer winding close to the secondary and fed 03025 11 Vo1+ 2 x 2200 pF 14 n.c. Fig. 2 Block diagram for dual-output models with standard pinout. back to the primary control circuit. Close magnetic coupling is provided by the planar construction, ensuring very good regulation, and allowing for flexible load distribution. The Trim input of double-output models is referenced to the primary side, and allows for programming the output voltages in the range of 100 to 105% of Vo nom by means of an external resistor, or within 75 to 100% of Vo nom, using an external voltage source. Current limitation is provided by the primary circuit, thus limiting the total output current (Io nom for the single- and the sum Io1 nom + Io2 nom for double-output models). The inhibit input i allows remote control of the outputs; pin i must be connected to Vi- to activate the converter. Page 3 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Electrical Input Data General conditions: - TA = 25 C, unless TC is specified. - Connector pin i connected with Vi-. - Trim or R input not connected. Table 2a: Input data of IMX7 Input 20IMX7 Characteristics Vi Input voltage range 1 Vi nom Nominal input voltage Conditions min TC min - TC max I o = 0 - Io nom 8.4 Vi sur Repetitive surge voltage abs. max input (3 s) Converter 2 start-up time Worst case condition at Vi min and full load t rise Rise time inh. release 2 Vi nom Io nom 2.4 0.25 0.5 0.1 0.1 0.1 0.1 150 15 30 8 4.7 15 8 0.5 +0.8 -10 15 8 0.2 +0.8 -10 Vi max 2.4 Vi max or open or open 2.4 -0.5 -0.5 - 0.5 1 1 1 1 I inr p Inrush peak current Vi = Vi nom 4 fs Switching frequency Vi min - Vi max, Io = 0 - Io nom I i rr Reflected ripple current Io = 0 - Io nom EN 3 F V mA 3 3 3 3.8 3.7 4.2 5.6 A approx. 400 approx. 400 approx. 400 approx. 300 kHz 10 mApp 50 55022 3 mA Vi max 2.4 Vi max or open or open -0.5 Vi min - Vi max 15 +0.8 converter operating Input current when the converter is inhibited ms 0.2 +0.8 -10 converter inhibited I i inh 6 0.25 0.5 5 converter inhibited 5 0.25 0.5 12 -10 s 100 0.5 5 converter operating V 110 12 (for surge calculation) 4 70 150 50 5 5 Inhibit voltage 3 40 typ max Unit 121 60 12 Input capacitance 2 typ max min 40 5 Vinh 1 75 12 Ci Input RFI level conducted typ max min 16.8 6 110IMX7 resistive load Io = 0, Vi min - Vi max Vi RFI 70IMX7 capacitive load No load input current Inhibit current 36 0.25 Ii o Iinh max min 20 t start up switch on typ 40IMX7 B 30 B 20 B B Vi min will not be as stated, if Vo is increased above Vo nom by use of the R or Trim input. If the output voltage is set to a higher value, Vi min will be proportionally increased. Measured with a resistive and the max. admissible capacitive load. Measured with a lead length of 0.1 m, leads twisted. Double-output models with both outputs in parallel. 70/110 IMX7 models need an external capacitor at the input, e.g., 1 F film or ceramic. Source impedance according to ETS 300132-2, version 4.3, at Vi nom. The DC-DC converter shuts down automatically at approx. 38 V. Operation at lower input voltage possible: Po approx. 80% of Po nom at Vi min = 14.4 V. Vo Vo nom trise tstart up 04008a t Fig. 3 Converter start-up and rise time BCD20007-G Rev AD, 4-Nov-09 Page 4 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Table 2b: Input data of IMS7; general conditions as in table 2a Input 24IMS7 Characteristics Conditions Vi Input voltage range 1 Vi nom Nominal input voltage TC min - TC max I o = 0 - Io nom Vi sur Repetitive surge voltage abs. max input (3 s) t start up Converter 2 Worst case condition at Vi min and full load start-up time t rise switch on inh. release Rise time 2 Vi nom Io nom min 0.25 converter operating -10 converter inhibited 2.4 6 0.8 12 -10 Vi max 2.4 +0.8 -0.5 -0.5 1 1 Inrush peak current Vi = Vi nom 4 fs Switching frequency Vi min - Vi max, Io = 0 - Io nom I i rr Reflected ripple current Io = 0 - Io nom EN mA V Vi max converter operating I inr p s F 0.5 +0.8 converter inhibited Vi min - Vi max 4 24 or open Input current when the converter is inhibited 0.5 ms or open I i inh V 0.1 5 (for surge calculation) 3 0.25 12 Inhibit voltage 2 0.5 5 Input capacitance Unit 75 100 12 12 max 48 resistive load Vinh 1 typ capacitive load Ci Input RFI level conducted 36 0.1 Io = 0, Vi min - Vi max Vi RFI min 36 50 No load input current Inhibit current max 24 Ii o Iinh typ 14 48IMS7 3 mA 3 4.0 3.9 A approx. 330 approx. 330 kHz 40 55022 3 B 30 mApp B Vi min will not be as stated, if Vo is increased above Vo nom by use of the R or Trim input. If the output voltage is set to a higher value, Vi min will be proportionally increased. Measured with a resistive and the max. admissible capacitive load. Measured with a lead length of 0.1 m, leads twisted. Double-output models with both outputs in parallel. 70/110 IMX7 models need an external capacitor at the input, e.g., 1 F film or ceramic. Source impedance according to ETS 300132-2, version 4.3, at Vi nom BCD20007-G Rev AD, 4-Nov-09 Page 5 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Input Transient Voltage Protection In many applications transient voltages on the input of the converter may occur and are possibly caused by short circuits between Vi+ and Vi-, where the network inductance may cause high energy pulses. In order to protect the converters, transient suppressors are fitted to the input; see table below: Table 3: Built-in transient voltage suppressor Model Breakdown Voltage VBR nom 20IMX7 1 Peak Power at 1 ms PP Peak Pulse Current I PP overvoltage lockout at approx. 38 V 24IMS7 2 53 V 600 W 7.7 A 40IMX7 2 100 V 1500 W 11 A 48IMS7 2 100 V 600 W 4.1 A 70IMX7 2 144 V 600 W 2.9 A 110IMX7 2 167 V 600 W 2.5 A 1 2 Note: Suppressor diode D is only necessary for 20IMX7 models. To withstand 150 V transients according to 19 Pfl 1, applicable for 40 IMX7 models, the same external circuitry with similar components as for IEC/EN 61000-4-5, level 2 compliance can be used. Input Fuse and Reverse Polarity Protection The suppressor diode on the input also provides for reverse polarity protection by conducting current in the reverse direction, thus protecting the converter. An external fuse is required to limit this current. We recommend for: - - - - 20IMX7 and 24IMS7 a fast 2 A (F2A) fuse 40IMX7 and 48IMS7 a fast 1 A (F1A) fuse 70IMX7 a fast 0.63 A (F.63A) fuse 110IMX7 a fast 0.63 A (F.63A) fuse. Inrush Current The inrush current has been kept as low as possible by choosing a very small input capacitance. A series resistor may be inserted in the input line to limit this current further. The built-in overvoltage trigger shuts down the converter at approx. 38 V protecting the input up to 50 V. For higher transient voltages an external suppressor or voltage limiting circuit as, e.g., for IEC/EN 61000-4-5, level 2 compliance should be provided. A 4 If transients generating currents above the peak pulse current are possible, an external limiting network such as the circuit recommended for IEC/EN 61000-4-5, level 2 compliance, is necessary. 2 To achieve IEC/EN 61000-4-5, level 2 compliance, an additional inductor and capacitor should be provided externally as shown in the figure below. The components should have similar characteristics as listed in table 4. 04030a 3 1 0 0 20 40 60 80 s Fig. 5 Typical inrush current at Vi nom , Po nom measured according to ETS 300132-2 (40IMX7). 07064 Vi+ L C + i D Vi- Fig. 4 Example for external circuitry to comply with IEC/EN 61000-4-5, level 2 (transzorb D only for 20IMX7). Table 4: Components for external circuitry to comply with IEC/EN 61000-4-5 Model L C D 20IMX7 330 H, 1 A, 0.115 68 F, 63 V 1.5KE39A 24IMS7 330 H, 0.6 A, 0.42 68 F, 63 V n.a. 40IMX7 330 H, 0.6 A, 0.42 68 F, 100 V n.a. 48IMS7 330 H, 0.6 A, 0.42 68 F, 100 V n.a. 70IMX7 1000 H, 0.6 A, 0.42 68 F, 100 V n.a. 110IMX7 330 H, 0.2 A 200 F, 200 V n.a. BCD20007-G Rev AD, 4-Nov-09 Page 6 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Electrical Output Data General conditions: - TA = 25 C, unless TC is specified. - Pin i connected with Vi -; Trim or R input left open-circuit. Table 5a: Output data for single-output models Output Vo nom 3.3 V Characteristics Conditions min Vo Output voltage setting Vi nom 3.28 5.1 V typ max min 3.32 5.07 12 V typ min typ 5.13 11.82 1.2 max min typ 12.18 14.78 Unit V Io nom Output current (nom.) Vi min - Vi max Current limit 2 Vi nom 3.0 2.4 1.2 1.1 Vo Line and load regulation Vi min - Vi max Io = (0.05 - 1) Io nom 1 1 1 1 % vo Output voltage noise Vi min - Vi max Io = I o nom 70 70 120 150 mV pp 5 6 110IMX7 0.6 max 15.22 Io L other models 1.5 max 15 V 20 40 20 40 25 40 50 40 50 n.a. 0.48 50 A 30 60 n.a. Vo clp Output overvoltage limit 7 Co ext Admissible capacitive load Vo d Dynamic Voltage deviat. load Recovery time regulation Vi nom Io nom 1/2 Io nom 250 250 330 330 mV 1 1 1 1 ms Temperature coefficient Vo /TC (TC min to TC max) Vi min - Vi max Io = (0.05 - 1) Io nom 0.02 0.02 0.02 0.02 %/K td Vo Minimum load 1% 115 130 115 130 2500 115 130 2000 115 300 130 % 200 F Table 5b: Output data for double-output models Output Vo nom Characteristics Vo1 Vo2 Output voltage setting Vo1 Vo2 Io nom Io L Vo1 Current limit 2 3 4.96 4.95 5.04 11.90 5.05 11.88 12.10 14.88 12.12 14.85 IMS7 Vi nom I o1 = I o2 = 0.5 I o nom 4.92 4.92 5.08 11.82 5.08 11.82 12.18 14.78 12.18 14.78 Line regulation Output voltage noise 4 Vo clp Output overvoltage limit 7 Co ext Admissible capacitive load 3 Vo d Dynamic Voltage deviat. load Recovery time regulation 1 2 3 4 5 6 7 min typ 2 x15 V IMX7 Vi nom I o1 = I o2 = 0.5 I o nom max min typ 2 x 24 V max min typ max Unit 15.12 23.81 15.15 23.75 24.19 24.25 V 15.22 23.64 15.22 23.64 24.36 24.36 2 x 0.6 2 x 0.25 2 x 0.2 2 x 0.13 2 x 0.7 2 x 0.3 2 x 0.24 2 x 0.15 20IMX7 Vi nom Load regulation Vo typ max A 2.4 1.0 0.95 0.5 2.8 1.2 1.1 0.6 Vi min - Vi max, I o nom 1 1 1 1 Vi nom , (0.1 - 1) Io nom 3 3 3 3 80 120 150 240 other models vo1, 2 2 x 12 V min Output current 20IMX7 Vi min - Vi max (nom.)1 other models Vo l td 2x5V Conditions Vi min - Vi ma I o = I o nom 5 6 Minimum load 1% 20 115 40 130 25 115 2000 Vi nom Io nom 1/2 Io nom Temperature coefficient Vi min - Vi max Vo /TC (TC min to TC max)Io = (0.05 - 1) Io nom 50 130 30 115 60 130 300 50 115 200 % mVpp 100 130 % 100 F 150 330 350 600 mV 1 1 1 1 ms 0.02 0.02 0.02 0.02 %/K Each output is capable of delivering full output power Po nom according to 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 not tracking with the R control. BCD20007-G Rev AD, 4-Nov-09 Page 7 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Thermal Considerations Output Overvoltage Protection If the converter, mounted on a PCB, is located in free, quasistationary air (convection cooling) at the maximum ambient temperature TA max (see table Temperature specifications) and is operated at nominal input voltage and output power, the case temperature TC measured at the measuring point of case temperature (see Mechanical Data) will approach 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, such as 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, and under practical operating conditions, TA may be higher or lower. The outputs are protected against overvoltage by Zener diodes. In the event of an overvoltage, the converter will shut down and attempt to restart automatically. The main purpose of this feature is to protect against possible overvoltage, which could occur due to a failure in the feedback control circuit. The converters are not designed to withstand external overvoltages applied to the outputs. Caution: The case temperature TC measured at the measuring point of case temperature (see Mechanical Data) may under no circumstances exceed the specified maximum. The installer must ensure that under all operating conditions TC remains within the limits stated in the table Temperature specifications. Po /Po max Connection in Series or Parallel The outputs of single- or double-output models can be connected in series without any precautions, taking into consideration that the output voltage should remain below 60 V for SELV operation. Both outputs of double-output models can be connected in parallel without any precautions. Several converters (singleor double-output models) with equal output voltage can be put in parallel and will share their output current quite equally. However, this may cause start-up problems and is only recommended in applications, where one converter is able to deliver the full load current, e.g., in true redundant systems. JM017 Vo [V] 1.0 05087a 5.5 0.8 0.5 m/s = 100 LFM 5.0 natural cooling 4.5 0.6 0.4 4.0 0.2 0 20 40 60 80 100 C TA Fig. 6 3.5 3.0 0 Maximum allowed output power versus ambient temperature 0.4 0.8 1.2 1.6 Io [A] Short-Circuit Behavior Fig. 8a The current limitation shuts down the converter, when a short circuit is applied to the output. It acts self-protecting, and automatically recovers after removal of the overload condition. Vo versus Io (typ.) of single-output models with Vo = 5.1 V Vo [V] 05086a 13 12 Vo [%] 100 overload short-circuit condition 11 switch-off 10 70 05041b 9 8 7 0 Fig. 7 Overload switch-off (hiccup mode). BCD20007-G Rev AD, 4-Nov-09 t 0 0.2 0.4 0.6 0.8 Io total [A] 0.3 s Fig. 8b Vo versus Io (typ.) of double-output models (2 x12 V) with both outputs in parallel Page 8 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) [%] Typical Performance Curves 05052a 90 Vo1 [V] 70 13 12.5 Vi nom Vi max Vi min 80 05088a 13.5 Io2 = 0.03 A 60 50 12 Io2 = 0.3 A 40 11.5 25 50 Po 100 % Po nom 75 11 0.05 0.15 0.10 0.20 0.25 0.3 Io1 [A] Fig. 9 Fig. 11 Cross load regulation (typ.) of double-output models (2 x12 V). The cross-load effect is negligible. Efficiency versus input voltage and load. Typical values (40IMX7-12-12-8). Vo1 , Vo2 [V] 05059a 12.8 12.4 Vo2 Vo1 12 11.6 11.2 0 30 60 90 150 120 Io1 [%] Io1 nom Fig. 10 Flexible load distribution on double-outputs models (2 x12 V) with load variation from 0 to 150% of Po1 nom on output 1. Output 2 loaded with 25% of Po2 nom. should be connected to Vi- to enable the output (active low logic, fail safe). Auxiliary Functions Inhibit Function Converter operating: -10 V to 0.8 V 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 Converter inhibited or inhibit pin i left open: 2.4 V to Vi max (20/40IMX7, 24/48IMS7) 2.4 V to 75 V (70/110IMX7) 06070 Adjustable Output Voltage Vi+ As a standard feature, all IMX7 and IMS7 converters offer adjustable output voltage(s) by using a control pin. If this pin is left open-circuit, the output voltage is set to Vo nom. The output voltage is adjustable in the range of 75 to 105% of Vo nom.The circuit works for single- and double-output models in a different way. For output voltages Vo > Vo nom, the minimum input voltage Vi min (see Electrical Input Data) increases proportionally to Vo /Vo nom. i Vi - Fig. 12 If the inhibit is not used, the inhibit pin should be connected to Vi- BCD20007-G Rev AD, 4-Nov-09 Page 9 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Single-output models with R-input: The R input (pin 13) 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. Adjustment of the output voltage is possible in the range of 100 to 105% of Vo nom using an external resistor, or in the range of 75 to 105% of Vo nom using an external voltage source. 06089a 06131 Vo+ Vi+ Rext1 Vo1+ Trim Vo1- + R Vext Rext2 Vi- Vi+ - Rext Vi- Control circuit Vref 2.5 V Vo2+ Vo2- Vo- Fig. 13 Fig. 15 Output voltage control with external resistor Output voltage adjust for double-output models a) Adjustment by means of an external resistor: Depending upon the value of the required output voltage, a resistor Rext1 or Rext2 shall be connected as shown in the figure below: Either: Rext1 between the R pin and Vo- to achieve an output voltage adjustment range of Vo = 75 to 100% of Vo nom (85 to 100% for 3.3 V outputs): Vo Rext1 4 k * --------- Vo nom - Vo a) Adjustment by means of an external resistor Rext. Programming of the output voltage by means of an external resistor Rext1 is possible within a limited range of 100 to 105% Vo nom. Rext should be connected between pin 4 and Vi -. The following table indicates suitable resistor values for typical output voltages under nominal conditions (Vi nom, Io = 0.5 Io nom), with paralleled outputs or equal load conditions on each output. Caution: Connection of Rext to Vi+ may damage the converter. or: Rext2 between the R pin and Vo+ to achieve an output voltage range of approximately Vo = 100 to 105 % of Vo nom: (Vo - 2.5 V) Rext2 4 k * ------------------ 2.5 V * (Vo/Vo nom - 1) Table 6: Rext for Vo > Vo nom approximate values (Vi nom, Io1 = Io2 = 0.5 Io1/2 nom) b) Adjustment by means of an external voltage Vext between Vo- and R pin. The control voltage is 1.96 to 2.62 V and allows for adjustment in the range of 75 to 105% of Vo nom. Vo * 2.5 V Vext -------- Vo nom Caution: Applying an external voltage >2.75 V may damage the converter. Note: Attempting to adjust the output below this range will cause the converter to shut down (hiccup mode). 06029b Vi+ Vo+ Vref = 2.5 V Rext 2 4 k R Control logic Vi- + Vext Rext1 Vo- ] Rext [ k 105 to 108 (107 typically) 105 104 103 102 101 100 0 1.5 5.6 12 27 68 b) Adjustment by means of an external voltage source Vext. For external output voltages in the range of 75 to 105% of Vo nom a voltage source Vext (0 to 20 V) is required, connected to the Trim-input (pin 4) and Vi-. The table below indicates typical Vo versus Vext values under nominal conditions (Vi nom, Io = 0.5 Io nom), with paralleled outputs or equal load conditions on each output. Direct paralleling of the Trim-inputs of converters connected in parallel is feasible. Note: Applying a control voltage greater than 20 V will set the converter into a hiccup mode. - Table 7: Vext for Vo = 75 to 105% Vo nom; typical values (Vi nom, Io1 = Io2 = 0.5 Io1/2 nom) Fig. 14 Output voltage adjust for single-output models Double-output models with Trim input: The Trim input (pin 4) of double-output models is referenced to the primary side. The figure below shows the circuitry. BCD20007-G Rev AD, 4-Nov-09 Vo [% Vo nom ] Page 10 of 15 Vo [% Vo nom] Vext [V] 105 102 95 85 75 0 1.6 4.5 9 13 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Electromagnetic Compatibility (EMC) A suppressor diode together with an input filter form an effective protection against high input transient voltages, which typically occur in many installations, but especially in batterydriven mobile applications. Electromagnetic Immunity Table 8: Immunity type tests Phenomenon Standard Class level Coupling mode 1 Value applied Waveform Source imped. Test procedure In oper. Perform.2 Electrostatic discharge to case 5 IEC/EN 61000-4-2 2 contact discharge 4000 Vp 1/50 ns 330 yes B 3 air discharge 8000 Vp 10 positive and 10 negative discharges Electromagnetic field IEC/EN 36 23 antenna 10 V/m 3 V/m 3 AM 80% 1 kHz n.a. 80 - 1000 MHz yes A ENV 50204 3 23 antenna 10 V/m 3 V/m 3 PM, 50% duty cycle, 200 Hz repetition frequ. n.a. 900 MHz yes A Electrical fast transients/burst IEC/EN 61000-4-4 4 33 direct +i/-i 50 60 s positive, 60 s negative transients per coupling mode yes B Surges IEC/EN 61000-4-5 34 23 4 +i/-i 2000 Vp 1000 Vp 3 1.2/50 s 2 5 pos. and 5 neg. surges yes B RF conducted immunity IEC/EN 61000-4-6 3 23 +i/-i 10 VAC 3 VAC AM modul. 80% 1 kHz 50 0.15 to 80 MHz 150 yes A 1 2 3 4 5 6 4000 Vp bursts of 5/50 ns 2000 Vp 3 5 kHz repet. rate, transients with 15 ms burst duration, and 300 ms period i = input, o = output Performance criterion: A = normal operation, no deviation from specifications, B = temporary deviation from specs possible Valid for 24IMS7 and 48IMS7 External components required R or Trim pin open, i pin connected with Vi- Corresponds to the railway standard EN 50121-3-2:2000, table 9.1 Electromagnetic Emissions PMM 8000 PLUS Name: 20_7_15 dbV Date: 5.9.07 Time: 08:18 20IMX7-15-15-8 Peak 60 80 40 20 20 0.2 0.5 1 2 5 10 20 MHz EN 55022 A 60 40 0 Time: 08:00 Peak 0 0.2 0.5 1 2 5 10 40IMX7D24-con-p EN 55022 A 20IMX7D15-con-p 80 Date: 5.9.07 40IMX7-24-24-8 PMM 8000 PLUS Name: 40_7_24 dbV 20 MHz Fig. 16a Fig. 16b 20IMX7-15-15-8: Typical conducted emissions (peak) at the input at Vi nom and Io nom according to EN 55011/22. Output leads 0.1 m, twisted. External input capacitor (1 F ceramic + 100 F electrolytic cap) 40IMX7-24-24-8: Typical conducted emissions (peak) at the input at Vi nom and Io nom according to EN 55011/22. Output leads 0.1 m, twisted. External input capacitor (1 F ceramic + 47 F electrolytic cap) BCD20007-G Rev AD, 4-Nov-09 Page 11 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) PMM 8000 PLUS Name: 110_7_05 dbV Date: 5.9.07 110IMX7-05-8 Time: 08:00 Peak EN 55022 A 60 40 20 20 0.2 0.5 1 2 5 10 EN 55022 A 60 40 0 Time: 09:10 Peak 80 110IMX7-05-con-p 80 Date: 5.9.07 48IMS7-15-15-8 PMM 8000 PLUS Name: 48_7_15 dbV 0 20 MHz 0.2 0.5 1 2 5 10 20 MHz Fig. 16c Fig. 17 110IMX7-05-8: Typical conducted emissions (peak) at the input at Vi nom and Io nom according to EN 55011/22. Output leads 0.1 m, twisted. External input capacitor (0.15 F ceramic + 4.7 F electrolytic cap). 48IMS7-15-15-8: Typical conducted emissions (peak) at the input at Vi nom and Io nom according to EN 55011/22. Output leads 0.1 m, twisted. External input capacitor (1 F ceramic + 47 F electrolytic cap). Immunity to Environmental Conditions Table 9: Mechanical and climatic stress Test Method Standard Test conditions Cab Damp heat steady state IEC/EN 60068-2-78 MIL-STD-810D section 507.2 Temperature: Relative humidity: Duration: 40 2 C 93 +2/-3 % 56 days Converter not operating Status Ea Shock (half-sinusoidal) IEC/EN 60068-2-27 1 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 100 gn = 981 m/s2 6 ms 18 (3 each direction) Converter operating Eb Bump (half-sinusoidal) IEC/EN 60068-2-29 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 40 gn = 392 m/s2 6 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) Fh Vibration, broad-band random (digital control) IEC/EN 60068-2-64 Acceleration spectral density: Frequency band: Acceleration magnitude: Test duration: 0.05 gn2/Hz 10 to 500 Hz 4.9 gn rms 3 h (1 h each axis) Converter operating Kb Salt mist, cyclic (sodium chloride NaCl solution) IEC/EN 60068-2-52 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 1 Covers also EN 50155/EN 61373 category 1, class B, body mounted (= chassis of coach) Temperatures Table 10: Temperature specifications, valid for air pressure of 800 to 1200 hPa (800 to 1200 mbar) Temperature -9 -8 Characteristics Conditions min max min max Unit TA Ambient temperature Operational 1 -40 71 -40 85 C TC Case temperature -40 95 -40 105 TS Storage temperature -55 100 -55 105 1 Non operational See Thermal Considerations BCD20007-G Rev AD, 4-Nov-09 Page 12 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Failure Rates Table 11: MTBF and device hours Model Standard Ground benign Ground fixed Ground mobile TC = 40 C TC = 40 C TC = 70 C TC = 50 C 634 000 321 000 188 000 271 000 24IMS7-05-9 MIL-HDBK-217F 40IMX7-12-12-8 MIL-HDBK-217F 851 000 395 000 253 000 342 000 Bellcore 3 019 000 1 510 000 809 000 409 000 Bellcore 3 320 000 1 660 000 871 000 447 000 3.81(0.15") 3 x 5.08 (0.2") Dimensions in mm. Weight: <20 g 4.6 (0.18") 3.81(0.15") 14 1 4 0.8 x 1.2 (0.03 x 0.05") pins 1.6 (0.06) PCB holes European Projection 10 PT 2.2 self tapping screws 3.81(0.15") 45.7 (1.8") Measuring point of case temperature TC 10.5 (0.41") S09030b 48 (1.9") S90002b 14 1 Bottom view 10 4 3.5 0.1 (0.14") 23 (0.9") 3 x 5.08 (0.2") 1.27 (0.05") Case IMX7/IMS7 with standard pinout 5 x 3.81 (0.15") Fig. 18 h 25.4 (1") 50.8 (2") 3.4 0.3(0.13") 5 x 3.81 (0.15") Mechanical Data 20.3 (0.8") 40IMX7-05-05-8 Unit 43.2 (1.7") Core Open-frame model (option Z) 8.25 (0.32") TC Z Fig. 19 1.2 (0.5") Safety and Installation Instructions Pin Allocation 10011 1 2 Bottom view 3 4 14 13 12 11 10 Table 12: Pin allocation (standard pinout and option Z) Pin Single output Double output 1 Vi+ Vi+ 2 Vi- Vi- 3 i i 4 n.c. Trim 10 Vo- Vo1- 11 Vo+ Vo1+ 12 Vo- Vo2- Fig. 20 13 R Vo2+ Footprint 14 n.c. n.c. BCD20007-G Rev AD, 4-Nov-09 Page 13 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) Installation Instruction Cleaning Agents Installation of the converters must strictly follow the national safety regulations in compliance with the enclosure, mounting, creepage, clearance, casualty, markings, and segregation requirements of the end-use application. In order to avoid possible damage, any penetration of cleaning fluids should be prevented, since the converters are not hermetically sealed. Connection to the system shall be made via a printed circuit board; see Mechanical Data. The converters should be connected to a secondary circuit. 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. If necessary, the mother board must be cleaned before populating the open-frame converter. Do not open the converter. Ensure that a converter failure does not result in a hazardous conditions. To prevent excessive current flowing through the input lines in case of a short-circuit, an external fuse specified in section Input Fuse and Reverse Polarity Protection should be installed in the non-earthed input supply line. Isolation The electric strength test is performed in the factory as a 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 12: Electric strength test voltages Characteristic Standards and Approvals The converters are approved by UL and TUV according to UL 60950, CAN/CSA C22.2 No. 950-95, and IEC/EN 60950:2000. The converters have been evaluated for: * Building in * Supplementary insulation input to output, based on their maximum input voltage Input to output 20/40IMX 70IMX 110IMX 24/48IMS o/o1 Unit Factory test >1 s 1.2 1.5 2.0 0.1 kVAC Equivalent DC volt. 1.5 2.0 2.5 0.15 kVDC Coupling capacitance 1.2 1.2 1.2 - nF >100 >100 >100 - M Insulation resist. at 500 VDC * Pollution degree 2 environment * Connecting the input to a secondary circuit, which is subject to a maximum transient rating of - 1500 V for 20IMX7, 24IMS7, 40IMX7, 48IMS7 - 2000 V for 70IMX7 - 2500 V for 110IMX7. The converters are subject to manufacturing surveillance in accordance with the above mentioned standards. Railway Applications To comply with railway standards, all components are coated with a protective lacquer (except option Z). 1 Between the outputs of double-output models Description of Options Option Z: Open Frame For applications, where the protection by a housing is not necessary or in the case that the motherboard should be lacquered after fitting the converter. Note: The converters shall not be exposed to cleaning processes, as this will damage the glue of the ferrite cores. Option G: RoHS-6 Protection Degree The protection degree of the converters is IP 30, except openframe models (option Z). Converters with a type designation ending by G are RoHScompliant for all six substances. NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. BCD20007-G Rev AD, 4-Nov-09 Page 14 of 15 www.power-one.com IMX7/IMS7 DC-DC Series Data Sheet 7-Watt DC-DC Converters (R) EC Declaration of Conformity We Power-One AG Ackerstrasse 56, CH-8610 Uster declare under our sole responsibility that IMS/IMX7 Series 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 IMS/IMX7 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, 10 June 2006 Power-One AG Rolf Baldauf Vice President Engineering BCD20007-G Rev AD, 4-Nov-09 Page 15 of 15 Johann Milavec Director Projects and IP www.power-one.com