Board Mountable DC-DC Converters 15 Watt DC-DC Converters IMS 15 Series IMS 15 Series Wide input voltage ranges up to 75 V DC 1 or 2 outputs up to 48 V DC 1500 V DC I/O electric strength test voltage * Electrical isolation, also between outputs * Emissions below EN 55022, level B * Immunity to IEC/EN 61000-4-2,-3,-4,-5 and -6 * High efficiency (typ. 86%) * Input undervoltage lock-out * Shut down input, output voltages adjustable * Flex power: Flexible load distribution on outputs 40.6 1.6" 10.5 0.42" 51 2.0" * Outputs no-load, overload and short-circuit proof * Operating ambient temperature -25...71 C * Thermal protection * 2" x 1.6" case with 10.5 mm profile * Supplementary insulation Safety according to IEC/EN 60950, UL 1950 LGA Summary The IMS 15 series of board mountable 15 Watt DC-DC converters has been designed according to the latest industry requirements and standards. The converters are particularly suitable for applications in industry and telecommunications where variable input voltages or high transient voltages are prevalent. The converters provide supplementary insulation with SELV outputs as e.g. required in battery supported systems where the bus voltage may exceed the SELV limit of 60 V DC. They are designed, built and approved according to the international safety standards IEC/EN 60950, UL 1950, CAN/CSA C22.2 No.950-95. Providing two wide input voltage ranges, 14...36 V DC and 36...75 V DC, the units are available with single, dual and electrically isolated double outputs allowing the configuration of output voltages from 3.3 up to 48 V DC externally adjustable, with flexible load distribution on dual and double output units. A shut down input allows remote converter on/ off. Features include efficient input and output filtering with unsurpassed transient and surge protection, low output ripple and noise, consistently high efficiency over the entire input voltage range, high reliability as well as excellent dynamic response to load and line changes. The circuit comprises of integrated planar magnetics and all components are automatically assembled and solidly soldered onto a single PCB without any wire connections. The proprietary magnetic feedback solution 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 71C in free air without using any potting material. An extended temperature range - 40...71C is available as an option. For extremely high vibration environments the case has holes for screw mounting. Table of Contents Page Summary .......................................................................... 1 Type Survey and Key Data .............................................. 2 Type Key and Product Marking ........................................ 2 Functional Description ...................................................... 3 Electrical Input Data ......................................................... 4 Electrical Ouput Data ....................................................... 5 Edition 1/04.2001 Page Auxiliary Functions ........................................................... 8 Electromagnetic Compatibility (EMC) .............................. 9 Immunity to Environmental Conditions ........................... 10 Mechanical Data ............................................................ 11 Safety and Installation Instructions ................................ 12 Description of Option ..................................................... 14 1/14 Board Mountable DC-DC Converters IMS 15 Series Type Survey and Key Data Table 1: Type survey Output 1 Uo1 nom Io1 nom 1 [V DC] [A] 1 2 Output 2 Uo2 nom Io2 nom 1 [V DC] [A] Output power Po nom [W] Input Voltage Range and Efficiency Ui min...Ui max htyp Ui min...Ui max 14...36 V DC [%] 36...75 V DC Option htyp [%] 5.1 2.7 - - 13.8 24 IMS 15-05-9R 84 48 IMS 15-05-9R 83 12 1.4 - - 16.8 24 IMS 15-12-9C 88 48 IMS 15-12-9C 86 i, C, L, Z 15 1.12 - - 16.8 24 IMS 15-15-9C 88 48 IMS 15-15-9C 86 5.1 1.6 3.3 1.6 13.5 24 IMS 15-0503-9R 82 48 IMS 15-0503-9R 82 i, L, Z 5 1.4 5 1.4 14 24 IMS 15-05-05-9 85 48 IMS 15-05-05-9 83 K 2, i, C, L, Z 12 0.7 12 0.7 16.8 24 IMS 15-12-12-9 88 48 IMS 15-12-12-9 86 K 2, i, C, L, Z 15 0.56 15 0.56 16.8 24 IMS 15-15-15-9 88 48 IMS 15-15-15-9 86 K 2, i, C, L, Z 24 0.35 24 0.35 16.8 24 IMS 15-24-24-9 87 48 IMS 15-24-24-9 86 i, C, L, Z Flexible load distribution on dual and double outputs possible up to 75% of Po nom on one of the 2 outputs, 24/48 IMS 15-0503-9 types allow; 2 A max. on one of the 2 outputs. The other output should not exceed the difference to the total output power Po nom. Option K: Alternative pinout with common ground (Vo+, Go, Vo-), excludes option i, L, C, Z. Type Key and Product Marking Type Key 24 IMS 15 - 05 - 05 -9 R K i C L Z Input voltage range Ui 14...36 V DC .............................................. 24 36...75 V DC .............................................. 48 Series ...................................................................... IMS 15 Output voltage type output 1 ........................ 05, 12, 15, 24 Dash designates double output unit with two independent electrically isolated outputs ...... - 1 Output voltage type output 2 .................. 03, 05, 12, 15, 24 Operating ambient temperature range TA -40...71C .................................................. -9 R input and magnetic feedback ...................................... R Option: Alternative pinout ......................................... K Inhibit ............................................................ i Industrial C-pinout ...................................... C Surface mount version with PCB lid ............ L Open frame .................................................. Z 1 2 3 2 3 13 Not applicable with option C or K and -0503 types Single output and -0503- types For minimum order quantity and lead time contact Power-One. Examples: 48 IMS 15-05-05-9: DC-DC converter, input voltage range 36...75 V, 2 electrically isolated outputs each providing 5 V, 1.4 A. 24 IMS 15-0505-9K: DC-DC converter, input voltage range 14...36 V, alternative pinout with outputs 5 V, 1.4 A. Product Marking Basic type designation, output voltages and currents, applicable safety approval and recognition marks, Power-One patent nos. and company logo. Side label: Date code and serial no. Edition 1/04.2001 2/14 Board Mountable DC-DC Converters IMS 15 Series Functional Description The IMS 15 series of DC-DC converters are magnetic feedback controlled flyback converters using current mode PWM (Pulse Width Modulation). The -05- and -0503- output voltage versions feature an active magnetic feedback loop via a pulse transformer which results in very tight regulation of the output voltage (see fig.: Block diagram, single and -0503- output types). The output voltages of these versions 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 Uo nom using either an external resistor or an external voltage source. The voltage regulation on the dual and double output versions is achieved with a passive transformer feedback from the main transformer (see fig.: Block diagram, for double output types). The output voltages can be adjusted via the Trim input. The Trim input is referenced to the primary side of the converter and allows for programming of the output voltages in the range 100 to 105% of Uo nom by an external resistor or within 75 to 105% using an external voltage source.The load regulation output characteristic allows for paralleling of one or several double output units of equal output voltages. Current limitation is provided by the primary circuit, thus limiting the total output power of double output types to approx. 130% of Po nom (see: Type Survey). The shut down input allows remote converter on/off. Overtemperature protection will shut down the unit in excessive overload conditions with automatic restart approximately every 50 to 60 ms. 03022 03006 Vi+ 1 Vi+ 1 13 Vo1+ 13 Vo+ SD 4 PWM 15 Go PWM SD 4 15 Vo- 2 x 2200 pF 1500 V Vi- 2 n.c. 3 11 Vo2+ Vi- 2 12 Go 2 x 2200 pF, 1500 V 17 R 17 R Fig. 1 Block diagram, single output types. Fig. 2 Block diagram, -0503- types. 03007 Vi+ 1 11 Vo1+ 03023 Vi+ 1 SD 4 11 Vo+ 12 Vo1- PWM 13 Vo2+ Trim 3 SD 4 PWM 13 Go Vi- 2 15 Vo2- 2 x 2200 pF, 1500 V 17 n.c. Vi- 2 15 Vo- 2 x 2200 pF, 1500 V 17 n.c. Fig. 3 Block diagram, double output types, standard pinout. Fig. 4 Block diagram, dual output types, alternative K-pinout. Edition 1/04.2001 3/14 Board Mountable DC-DC Converters IMS 15 Series Electrical Input Data General conditions: - TA = 25C, unless TC is specified. - Shut down pin left open circuit (not connected). - Trim or R input not connected. Table 2: Input Data Input 24 IMS Characteristics 1 2 3 4 1 Conditions min TC min...TC max Io = 0...Io nom 14 typ 48 IMS max min 36 36 typ max Unit 75 V DC Ui Input voltage range Ui nom Nominal input voltage Ui sur Repetitive surge voltage Abs. max input (3 s) t start up Converter start-up time Worst case condition at Ui min and full load 2 t rise Rise time Ii o No load input current Io = 0, Ui min...Ui max 20 Ci Input capacitance for surge calculation 4.0 2.0 F USD Shut down voltage Unit disabled -10...0.7 -10...0.7 V DC Unit operating 2.0...20 2.0...20 10 10 Switch on SD high 24 48 50 0.25 100 0.5 0.25 0.1 Ui nom, Io = Io nom 2 Shut down input resistance ISD Input current if unit shut down Ui Iinr p Inrush peak current 4 Ui = Ui nom fs Switching frequency Ui min...Ui max, Io = 0...Io nom I i rr Reflected ripple current Io = 0...Io nom ui RFI Input RFI level conducted EN 55022 3 min...Ui max 1.2 s 0.1 5 RSD 0.5 5 40 ms 10 3 20 mA k 1.2 3 mA 4.5 A 30 30 mApp B B 5 approx. 350 approx. 350 kHz Ui min will not be as stated if Uo is increased above Uo nom by use of the R or Trim input. If the output voltage is set to a higher value, Ui min will be proportionally increased. Measured with a resistive and the max. admissable capacitive load. Measured with a lead lenght of 0.1 m, leads twisted. Double output units with both outputs in parallel. Source impedance according to ETS 300132-2. Inrush Current Input Undervoltage Lock-out The inrush current has been kept as low as possible by choosing a very small input capacitance. The IMS 15 converters are fitted with a defined input undervoltage lock-out (approx. values): A series resistor may be installed in the input line to further limit this current. 24 IMS 15 48 IMS 15 I [A] turn off turn on turn off turn on 12.5 V 13 V 31.5 V 32 V 04022 4 Uo Uo nom 3 t rise 04008 2 1 t [s] 0 10 20 30 40 50 60 70 80 t 90 100 Fig. 5 Typical inrush current at Ui nom, Po nom versus time (48 IMS 15). Source impedance according to prETS 300132-2, version 4.3 at Ui nom. Edition 1/04.2001 t start up Fig. 6 Converter start-up and rise time. 4/14 Board Mountable DC-DC Converters IMS 15 Series Input Transient Voltage Protection A built-in suppressor diode provides effective protection against input transients which may be caused for example by short-circuits accross the input lines where the network inductance may cause high energy pulses. Table 4: Components for external circuitry to comply with IEC/EN 61000-4-5, level 2 or ETR 283 (19Pfl1) (48 IMS types). Circuit Ref. Table 3: Built-in transient voltage suppressor Type Breakdown voltage VBR nom [V] Peak power at 1 ms PP [W] Peak pulse current IPP [A] 24 IMS 15 53 600 7.7 48 IMS 15 100 600 4.1 For very high energy transients as for example to achieve IEC/EN 61000-4-5 or ETR 283 (19 Pfl1) compliance (as per table :Electromagnetic Immunity) an external inductor and capacitor are required. 04009 L V+ + V- 48 IMS 15 150 H, 0.294 , 640 mA TOKO: 494 LYF-0094K 1 150 F, 63 V, 85C C 100 F, 150 V, 85C 1 Available from TOKO Components Division Reverse Polarity Protection at the Input 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. - For 24 IMS 15 types a fast 3.15 A (F3.15A) fuse is recommended. - For 48 IMS 15 types a fast 2 A (F2A) fuse is recommended. 1 Vi+ C 24 IMS 15 L Module 2 Vi- Fig. 7 Example for external circuitry to comply with IEC/EN 61000-4-5 or ETR 283 (19 Pfl1) (48 IMS15 types). Electrical Output Data General conditions: TA = 25C, unless TC is specified. Shut down pin left open (not connected). Trim- or R-input not connected. Table 5a: Output data for single output units and -0503- types. Output 5.1 V 5.1/3.3 V Characteristics Conditions min typ max min typ max Uo1 Uo2 Output voltage Ui nom Io = 0.5 Io nom 5.05 5.0 3.13 Io nom Output current 1 Ui min...Ui max 2.7 2 x 1.6 Ui nom, TC = 25C Uo = 90% Uo nom 3.5 3.0 3.8 2, 4 Io1L Io2L Current limit DUo Line/load regulation uo1/2 Uo L Output overvoltage limitation Co ext Admissible capacitive load 3 uo d Dynamic load regulation td aUo 1 2 3 4 5 6 7 Output voltage noise Ui min...Ui max Io = Io nom Temperature coefficient DUo/DTC Ui min...Ui max Io = 0...Io max % +3, -5 3.3 V 4.5 5 70 80 6 40 40 130 V A 5.1 V 115 Voltage deviat. Ui nom I 0.5 Io nom Recovery time o nom IEC/EN 61204 5.12 3.46 0.5 Ui min...Ui max, Io = (0.01...1) Io nom Ui min...Ui max Io = (0.1...1) Io nom 5.15 Unit 115 130 mVpp % 4000 total 4000 F 250 150 mV 1 1 ms 0.02 0.02 %/K Flexible load distribution: 24/48 IMS 15-0503 types; 2 A max. on one of the 2 outputs, the other output should not be loaded such that the total output power exceeds Po nom according to table: Type survey. The current limit is primary side controlled. Measured with both outputs connected in parallel. For -0503- types: total capacitance, both outputs. 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 R/Trim control. Edition 1/04.2001 5/14 Board Mountable DC-DC Converters IMS 15 Series Table 5b: Output data for dual and double output units. Output 3 4 5 6 7 2 x 15 V 2 x 24 V min typ max min typ max min typ max Conditions min typ max Uo1 Uo2 Output voltage Ui nom Io = 0.5 Io nom 4.92 4.92 Io nom Output current 1 Ui min...Ui max 2, 4 5.08 11.82 5.08 11.82 12.18 14.78 12.18 14.78 15.22 23.64 15.22 23.64 24.36 24.36 2 x 1.4 2 x 0.7 2 x 0.56 2 x 0.35 3.5 1.9 1.6 0.95 Current limit DUo U Line regulation Ui min...Ui max, Io nom 1 1 1 1 DUo l Load regulation Ui nom Io = (0.1...1) Io nom 3 3 3 3 uo1/2 Output voltage noise Ui min...Ui max Io = Io nom 5 80 120 150 240 6 40 60 75 80 Uo L Output overvoltage limit. 7 Co ext Admissible capacitive load 3 uo d Dynamic load regulation Ui nom, TC = 25C Uo = 90% Uo nom Min. load 1% 115 Voltage deviat. Ui nom Io nom 1/2 Io nom Recovery time Temperature coefficient DUo/DTC Ui min...Ui max Io = 0...Io max 130 115 130 115 130 115 Unit V A IoL aUo 2 2 x 12 V Characteristics td 1 2x5V % mVpp 130 % 4000 680 470 180 F 250 680 750 900 mV 1 1 1 1 ms 0.02 0.02 0.02 0.02 %/K Flexible load distribution: Each output is capable of delivering 75% of Po nom according to table: Type Survey. The other output should not exceed the difference to the total output power Po nom . The current limit is primary side controlled. Connection in Series Measured with both outputs connected in parallel. Conditions for specified output. Other output loaded with constant The outputs of one or several single or double output units current Io = 0.5 Io nom. can be connected in series without any precautions, taking BW = 20 MHz into consideration that the highest output voltage should Measured with a probe according to EN 61204 remain below 42 V to ensure that the output remains SELV. The overvoltage protection is not tracking with R/Trim control. Thermal Considerations Connection in Parallel 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 TC measured at the Measuring point of case temperature TC (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. TA max is therefore only an indicative value and under practical operating conditions, the ambient temperature TA may be higher or lower than this value. Double outputs of the same converter with equal output voltage (e.g. 5V / 5V) 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 e.g. required in true redundant systems. 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. The output of single output units as well as -0503- and -05-05- types are protected against overvoltages by a second control loop. In the event of an overvoltage on one of the outputs the unit will shut down and attempt to restart approximately every 50 to 60 ms. Double and dual output units (with exception of the -0503- and -05-05- types) are protected against overvoltages by a Zener diode across the second output. Under worst case conditions the Zener diode will short circuit. Since with double output units 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 overvoltages which could occur due to a failure in the feedback control circuit. The output overvoltage protection is not designed to withstand externally applied overvoltages. Overtemperature Protection The converters are protected from possible overheating by means of an internal temperature monitoring circuit. It shuts down the unit above the internal temperature limit and attempts to automatically restart every 50 to 60 ms. This feature prevents from excessive internal temperature building up which could occur in heavy overload conditions. Edition 1/04.2001 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). Output Overvoltage Protection 6/14 Board Mountable DC-DC Converters IMS 15 Series Typical Performance Curves General conditions : TA = 25 C, unless TC is specified. Shut down pin left open circuit. Trim or R input not connected. Uo [V] Uo [V] 5.5 05020 13 05019 12 5.0 11 4.5 10 4.0 9 3.5 8 7 3.0 0 2 1 3 4 5 0 Io [A] 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Io total [A] Fig. 9 Uo versus Io (typ) of double output units (2 x 12 V), with both outputs in parallel. Fig. 8 Uo versus Io (typ) of units with Uo = 5.1 V. h [%] Uo [%] 05040 90 overload short circuit condition Ui nom Ui max Ui min 80 05041 100 switch-off 70 70 8 60 t [ms] 60 60 50 40 25 50 75 100 Po1 [%] Po nom Fig. 13 Overload switch off (hiccup mode), typical values. Fig. 12 Efficiency versus input voltage and load. Typical values (48 IMS 15-12-12). Edition 1/04.2001 7/14 Board Mountable DC-DC Converters IMS 15 Series Auxiliary Functions Shut Down 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 the shut down function is not required then it should be left open-circuit. Converter operating: Converter shut down: 2.0...20 V -10...0.7 V Double output units (except -0503- types): The Trim input is referenced to the primary side. The figure below shows the circuit topology. Adjustment of the output voltage is possible by means of either an external resistor Rext in the range of 100...105% of Uo nom or an external voltage source in the range of 75...105% of Uo nom. 06089 Adjustable Output Voltage - R input for single output units and -0503- types - Trim input for double output units As a standard feature, the IMS 15 single and double output units 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 Uo nom. For output voltages Uo > Uo nom, the minimum input voltage Ui min (see: Electrical Input Data) increases proportionally to Uo/Uo nom. Single output units and -0503- types: 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. a) Adjustment by means of an external resistor Rext: 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 approximately Uo = 80...100% Uo nom. Uo Rext1 4 k * --------- Uo nom - Uo or: Between the R pin and Vo+ to achieve an output voltage range of approximately Uo = 100...105 % Uo nom. (Uo - 2.5V) Rext2 4 k * ------------------ 2.5 V * (Uo /Uo nom - 1) b) Adjustment by means of an external voltage Uext between Vo- and R pins. The control voltage range is 1.96...2.62 V and allows for an adjustment in the range of approximately 80...105% of Uo nom. Uo * 2.5 V Uext --------- Uo 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. 06029 Vo+ L Uref 2.5 V Rext2 4 k R control circuit N + Uext Rext1 Vo-- -- Fig. 14 Output voltage control for single output units and -05-03types by means of the R input. Edition 1/04.2001 Vi+ Vo1+ Trim Vo1- + Uext Rext - Vi- Control circuit Uref 2.5 V Vo2+ Vo2- Fig. 15 Output voltage control for double output units by means of the Trim input. a) Adjustment by means of an external resistor Rext: Programming of the output voltage by means of an external resistor Rext is possible within a limited range of 100...105% of Uo nom. Rext should be connected between the Trim pin and Vi-. Connection of Rext to Vi+ may damage the converter. The following table indicates suitable resistor values for typical output voltages under nominal conditions (Ui nom, Io = 0.5 Io nom), with either paralleled outputs or equal load conditions on each outputs. Table 6: Rext1 for Uo > Uo nom; approximate values (U i nom, Io1, 2 = 0.5 Io1/2 nom) Uo [% Uo nom] Rext [k] 105...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 Uext. For external output voltage programming in the range 75...105% of Uo nom a (0...20 V) source Uext is required, connected to the Trim pin and Vi-. The table below indicates typical Uo versus Uext values under nominal conditions (Ui nom, Io = 0.5 Io nom), with either paralleled outputs or equal load conditions on each output. Applying a control voltage >20 V will set the converter into a hiccup mode. Direct paralleling of the Trim pins of units connected in parallel is feasible. Table 7: Uo versus Uext for Uo = 75...105% Uo nom; typical values (Ui nom, Io1/2 = 0.5 Io1/2 nom) Uo [% Uo nom] Uext [V] 105 102 95 85 75 0 1.6 4.5 9 13 8/14 Board Mountable DC-DC Converters IMS 15 Series 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 battery driven mobile applications. Electromagnetic Immunity Table 8: Immunity type tests Phenomenon Standard 1 Class Level Coupling mode 2 Value applied Waveform Source Imped. Test procedure 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 2 antenna 3 V/m AM 80% 1 kHz 26...1000 MHz yes A PM, 50% duty cycle, 200 Hz resp. frequ. 900 MHz Electromagnetic IEC/EN field 61000-4-3 ENV 50204 1 2 3 4 5 In Per- 3 oper. form. Electrical fast transient/burst IEC/EN 61000-4-4 3 direct +i/-i 2000 Vp bursts of 5/50 ns 5 kHz rep. rate transients with 15 ms burst duration and a 300 ms period 50 1 min positive 1 min negative transients per coupling mode yes A Surge IEC/EN 61000-4-5 5 2 +i/-i 1000 Vp 1.2/50 s 2 5 pos. and 5 neg. impulses per coupling mode yes B Conducted disturbancies IEC/EN 61000-4-6 2 +i/-i 50 0.15...80 MHz 150 yes A Transient ETR 283 (19 Pfl 1) 4 limited to <100 A 3 positive yes B 3 Vrms AM modulated (130 dBV) 80%, 1 kHz +i/-i 150 Vp 0.1/0.3 ms Related and previous standards are referenced in Technical Information: Standards. i = input, o = output. A = normal operation, no deviation from specification, B = temporary deviation from specs. possibe. For 48 IMS 15 types (additional external components required). Not applicable for 24 IMS 15 types. External components required. Electromagnetic Emission [dBV] 90 07020 [dBV/m] 50 80 07108 A EN 55022 A 70 40 B EN 55022 B 60 30 50 40 20 30 20 10 10 Fig. 16 Typical disturbance voltage (quasi-peak) at the input according to CISPR 11/EN 55011 and CISPR 22/EN 55022, measured at Ui nom and Io nom. Output leads 0.1 m, twisted. (48 IMS 15-05) Edition 1/04.2001 [MHz] 1000 500 200 100 50 0 30 20 30 10 5 2 1 0.5 0.1 0.05 MHz 0.02 0.01 0 Fig. 17 Typical radio frequency-interference voltage at Ui nom, Io nom, measured with an antenna (distance 10 m). Output leads 1 m, twisted. 9/14 Board Mountable DC-DC Converters IMS 15 Series CISPR 22/EN 55022, Level B Radiated Electromagnetic emission requirements according to EN 55022, class B (radiated emmission) can be achieved by adding an external common mode choke. The filter component should be placed as close as possible to the input of the converter. 07115 Table 9: Input filter components for EN 55022, level B, radiated. Type Current compensated choke 24 IMS 15 48 IMS 15 1 mH, 2A e.g. Tokin SC-02-10GS L V+ Vi+ 15 07110 8.5 Module Vi- 15 V- Fig. 18 Example for external circuitry to comply with CISPR22/EN 55022, level B, radiated Fig. 19 Choke dimensions (Tokin SC-02-10 GS) Immunity to Environmental Conditions Table 10: Mechanical stress Test method Standard Test conditions Status Damp heat steady state IEC/DIN IEC 60068-2-3 MIL-STD-810D section 507.2 Temperature: Relative humidity: Duration: 40 2 C Ea Shock (half-sinusoidal) IEC/EN/DIN EN 60068-2-27 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 50 gn = 490 m/s2 11 ms 18 (3 each direction) Unit operating Eb Bump (half-sinusoidal) IEC/EN/DIN EN 60068-2-29 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 25 gn = 245 m/s2 11 ms 6000 (1000 each direction) Unit operating Fc Vibration (sinusoidal) IEC/EN/DIN EN 60068-2-6 MIL-STD-810D section 514.3 Acceleration amplitude: Unit operating Frequency (1 Oct/min): Test duration: 0.35 mm (10...60 Hz) 5 gn = 49 m/s2 (60...2000 Hz) 10...2000 Hz 7.5 h (2.5 h each axis) Concentration: Duration: Storage: Storage duration: Number of cycles: 5% (30C) 2 h per cycle 40C, 93% rel. humidity 22 h per cycle 3 Unit not operating Ca Kb Salt mist, cyclic (sodium chloride NaCl solution) IEC/EN/DIN IEC 60068-2-52 Unit not operating 93 +2/-3 % 56 days Table 11: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar) Temperature Standard -9 Characteristics TA Ambient temperature 1 TC Case temperature TS Storage temperature 1 1MIL-STD-810D Edition 1/04.2001 Conditions min max Unit Operational -40 71 C -40 95 -55 100 Non operational section 501.2 and 502.2 10/14 Board Mountable DC-DC Converters IMS 15 Series Mechanical Data Dimensions in mm. Tolerances 0.3 mm unless otherwise indicated. European Projection 45.72 (1.8") 10.5 (0.41") 11 12 13 1 36.83 (1.45") 0.8 (0.03") 5.08 (0.2") 40.65 (1.6") 2.54 (0.1") S09011 2 15 3 4 17 bottom view 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 IMS 15 Weight: <35 g 0.5 (0.02") 45.72 (1.8") 11.2 (0.44") 45.72 (1.8") 5.08 (0.2") o 1.0 (0.04") 3 1 20.3 (0.8") 40.65 (1.6") 1.0 (0.04") S90010 4 2 5 bottom view 50.8 (2") Fig. 21 C pinout (option C) Weight: <24 g Measuring point of case temperature TC 11.5 (0.45") 54.57 (2.15") S90012 11 6 5 13 1 14 2 15 3 6 x 5.08 (0.2") 5 x 5.08 (0.2") 40.65 (1.6") 12 16 4 bottom view 17 50.8 (2") Fig. 22 Surface mount version with PCB lid (option L) Edition 1/04.2001 11/14 Board Mountable DC-DC Converters 10.5 (0.41") IMS 15 Series 45.72 (1.8") o 2.54 (0.1") S90011 11 0.8 (0.03") 2 15 3 38.8 (1.52") 3 x 5.08 (0.2") 1 6 x 5.08 (0.2") 12 13 4 17 bottom view 48.26 (1.9") Fig. 23 Open frame (option Z) Weight: <20 g Safety and Installation Instructions Installation Instruction Installation of the DC-DC 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. supply line. We recommend a fast acting fuse F3.15A for 24 IMS 15 types and F2A for 48 IMS 15 types. 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. All DC-DC converters are pending to be UL recognized according to UL 1950, UL recognized for Canada to CAN/ CSA C22.2 No. 950-95 and LGA approved to IEC/EN 60950 standards. Standards and approvals The units should be connected to a secondary circuit. Check for hazardous voltages before altering any connections. The units have been evaluated for: * Building in * Supplementary insulation input to output, based on their maximum input voltage * The use in a pollution degree 2 environment * Connecting the input to a secondary circuit which is subject to a maximum transient rating of 1500 V Do not open the module. Ensure that a unit failure (e.g. by an internal short-circuit) does not result in a hazardous conditions. See also: Safety of operator accessible output circuit. Input Fuse After approvals the DC-DC converters are subject to manufacturing surveillance in accordance with the above mentioned UL, CSA, EN and ISO 9001 standards. To prevent excessive current flowing through the input supply line in case of a short-circuit across the converter input an external fuse should be installed in a non earthed input Table 12: Pin allocation Pin Standard Option K Option C Option L single double -0503- dual single dual single double 1 Vi+ Vi+ Vi+ Vi+ Vi+ Vi+ Vi+ Vi+ 2 Vi- Vi- Vi- Vi- Vi- Vi- Vi- Vi- 3 - Trim n.c. - Vo+ Vo+ n.c. Trim 4 SD SD SD SD - Go SD SD 5 - - - - Vo- Vo- n.c. n.c. 6 - - - - - - n.c. n.c. 11 - Vo1+ Vo2+ Vo+ - - - Vo1 12 - Vo1- Go - - - - Vo1- 13 Vo+ Vo2+ Vo1+ Go - - Vo+ Vo2+ 15 Vo- Vo2- Go Vo- - - Vo- Vo2- 17 R n.c. R n.c. - - R n.c. Edition 1/04.2001 12/14 Board Mountable DC-DC Converters Protection Degree 10005 The protection degree of the DC-DC converters is IP 40 (except 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 hermetically sealed. Bottom view 2 15 3 IMS 15 Series 4 17 Fig. 24 Pin allocation Isolation Safety of Operator Accessible Output Circuit The electric strength test is performed as factory test in accordance with IEC/EN 60950 and UL 1950 and should not be repeated in the field. Power-One will not honour any guarantee claims resulting from electric strength field tests. If the output circuit of a DC-DC converter is operator accessible, it shall be an SELV circuit according to IEC/EN 60950 related safety standards Table 13: Electric strength test voltages Characteristic Input to output Output to output Unit Electric strength test voltage 1 s 1.1 0.1 kVrms 1.5 0.15 kV DC Coupling capacitance 2.2 - nF Insulation resistance at 500 V DC >100 - M Consult factory - kV Partial discharge extinction voltage The following table shows some possible installation configurations, compliance with which causes the output circuit of the DC-DC converter to be an SELV circuit according to IEC/EN 60950 up to a configured output voltage of 42 V. However, it is the sole responsibility of the installer to ensure the compliance with the relevant and applicable safety regulations. More information is given in: Technical Information: Safety. Table 14: Insulation concept leading to an SELV output circuit Conditions Front end Supply voltage Minimum required grade of isolation, to be provided by the AC-DC front end, including mains supplied battery charger Mains Basic 250 V AC Double or reinforced 1 2 3 4 5 DC-DC converter Result Safety status of the DC-DC converter output circuit Maximum DC output voltage from the front end 1 Minimum required safety status of the front end output circuit Measures to achieve the specified safety status of the output circuit 60 V Earthed SELV circuit 2 Operational insulation (proSELV circuit vided by the DC-DC converter) ELV circuit Input fuse 3 output suppressor diode(s) 4, and earthed output circuit(s) 2 >60 V Hazardous voltage secondary circuit 60 V SELV circuit >60 V TNV-2 circuit Supplementary insulation, based on the maximum input Double or reinforced insuvoltage (provided by the lated unearthed hazardous DC-DC converter) 5 voltage secondary circuit Earthed SELV circuit Operational insulation (proSELV circuit vided by the DC-DC converter) The front end output voltage should match the specified input voltage range of the DC-DC converter. The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950. The installer shall provide an approved fuse (type with the lowest rating suitable for the application) in a non-earthed input line directly at the input of the DC-DC converter (see fig.: Schematic safety concept). For UL's purpose, the fuse needs to be UL-listed. See also: Input Fuse. Each suppressor diode should be dimensioned in such a way, that in the case of an insulation fault the diode is able to limit the output voltage to SELV (<60 V) until the input fuse blows (see fig.: Schematic safety concept). Has to be insulated from earth by basic insulation according to the relevant safety standard, based on the maximum output voltage from the front end. Edition 1/04.2001 13/14 Board Mountable DC-DC Converters 10004 Fuse ~ Mains ~ AC-DC front end Battery IMS 15 Series + Suppressor diode SELV DC-DC converter Earth connection - Earth connection Fig. 25 Schematic safety concept. Use fuse, suppressor diode and earth connection as per table: Safety concept leading to an SELV output circuit. Description of Options Table 15: Survey of options Option Function Characteristic K Alternative pinout See mechanical Data i Inhibit See mechanical Data L SMD version with PCB lid See mechanical Data Z Open frame version See mechanical Data C C-pinout See mechanical Data Option K Option K configures the electrically isolated double outputs to the alternative pinout with outputs connected in series (Vo+/Go/Vo-) and common ground. However instead of using units with option K, it is recommended to use the standard double output units by providing the printed circuit board with an additional pin hole (for pin 12 of double output units) connected to pin hole 13. This will provide more design-in flexibility since by that both pinouts may be used on the same PCB. See also fig. Block diagram, double output units, standard pinout. Option i Inhibit Excludes shut down and option K, or C. 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 unit 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). Converter operating: Converter inhibited or inhibit pin left open: -10 V...0.8 V 2.4 V...Ui max (max. 75 V) 06070 Vi+ i Vi- Fig. 26 If the inhibit is not used the inhibit pin should be connected to Vi-. Edition 1/04.2001 14/14