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? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 1 of 15 description the imx35 series of board-mountable, 35 watt dc-dc converters has been designed according to the latest industry requirements and standards. the converters are particularly suitable for use in mobile or stationary applications in transport, railways, industry, or telecommunication, where variable input voltages or high transient voltages are prevalent. covering a total input voltage range from 9 v up to 150 v with 4 different models, the converters are available with up to four electrically isolated outputs from 5 v to 60 v, externally adjustable and with flexible load distribution. a shutdown input allows remote converter on/off. features include consistently high efficiency over the entire input voltage range, high reliability, and excellent dynamic response to load and line changes. the converters are designed and built according to the international safety standards iec/en/ul 60950, and approved by tv and csa. the converters provide basic insulation. the circuit is comprised of 2 planar magnetics devices, and all components are automatically assembled and securly 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 considerations of possible thermal stresses ensure the absence of hot spots providing long life in environments, where temperature cycles are present. the thermal design without using any potting material allows operation at full load up to an ambient temperature of 71 c in free air and operation up to 105 c with airflow. for extremely high vibration environments the case has holes for screw mounting. features ? rohs lead-free-solder and lead-solder-exempted products are available. ? extremely wide input voltage ranges up to 150 vdc ? 4 outputs up to 60 v ? 1200 to 1800 vac i/o electric strength test ? electrical isolation between outputs ? programmable input undervoltage lockout ? shutdown/inhibit input ? adjustable output voltages with flexible load distribution ? frequency synchronization ? outputs no-load, overload, and short-circuit proof ? operating ambient temperature from ? 40 to 85 c ? thermal protection ? low profile: 10.5 mm or 8.9 mm with open frame ? basic insulation ? flexible output possibilities between 5 v and 60 v table of contents page page safety-approved to iec/en 60950 -1 and ul/csa 60950-1 2 nd ed. 72.8 2.87" 47.8 1.88" 8.9 0.35" 76.2 3" 63.5 2.5" 10.5 0.41" description ............................................................................. 1 model selection ..................................................................... 2 functional description ........................................................... 3 electrical input data ............................................................... 4 electrical output data ............................................................ 6 auxiliary functions ................................................................. 9 electromagnetic compatibility (emc) .................................. 11 immunity to environmental conditions ................................ 12 mechanical data .................................................................. 13 safety and installation instructions ...................................... 14 options ................................................................................. 15
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 2 of 15 model selection table 1: model selection output 1 output 2 output 3 output 4 input voltage efficiency 1 model opt. v o nom i o nom v o nom i o nom v o nom i o nom v o nom i o nom v i min to v i max min typ [v] [a] [v] [a] [v] [a] [v] [a] [v] [%] [%] 5 1.35 5 1.35 5 1.35 5 1.35 9 to 36 82.5 86 20IMX35d05d05-8 i 5 1.4 5 1.4 5 1.4 5 1.4 18 to 75 82 87 40imx35d05d05-8 z 5 1.4 5 1.4 5 1.4 5 1.4 40 to 121 83 86 70imx35d05d05-8 g 5 1.4 5 1.4 5 1.4 5 1.4 60 to 150 2 82 86 110imx35d05d05-8 12 0.65 12 0.65 12 0.65 12 0.65 9 to 36 83.7 86 20IMX35d12d12-8 12 0.7 12 0.7 12 0.7 12 0.7 18 to 75 83.7 88 40imx35d12d12-8 12 0.7 12 0.7 12 0.7 12 0.7 40 to 121 85 88 70imx35d12d12-8 12 0.7 12 0.7 12 0.7 12 0.7 60 to 150 2 84 88 110imx35d12d12-8 15 0.55 15 0.55 15 0.55 15 0.55 9 to 36 85 88 20IMX35d15d15-8 15 0.6 15 0.6 15 0.6 15 0.6 18 to 75 83.6 89 40imx35d15d15-8 15 0.6 15 0.6 15 0.6 15 0.6 40 to 121 84.5 88 70imx35d15d15-8 15 0.6 15 0.6 15 0.6 15 0.6 60 to 150 2 83 88 110imx35d15d15-8 5 1.35 12 0.65 12 0.65 5 1.35 9 to 36 84 88 20IMX35d05d12-8 5 1.4 12 0.7 12 0.7 5 1.4 18 to 75 84 89 40imx35d05d12-8 5 1.4 12 0.7 12 0.7 5 1.4 40 to 121 84 88 70imx35d05d12-8 5 1.4 12 0.7 12 0.7 5 1.4 60 to 150 2 83.6 88 110imx35d05d12-8 5 1.35 15 0.55 15 0.55 5 1.35 9 to 36 83.5 88 20IMX35d05d15-8 5 1.4 15 0.6 15 0.6 5 1.4 18 to 75 83.5 89 40imx35d05d15-8 5 1.4 15 0.6 15 0.6 5 1.4 40 to 121 84 88 70imx35d05d15-8 5 1.4 15 0.6 15 0.6 5 1.4 60 to 150 2 84 88 110imx35d05d15-8 1 efficiency at t a = 25 c, v o nom , i o nom 2 154 v for 2 s. part number description preferred for new designs input voltage range v i 9 to 36 vdc ........................................... 20 18 to 75 vdc ........................................... 40 40 to 121 vdc ........................................... 70 60 to 150 vdc ......................................... 110 series ....................................................................... imx35 outputs 1 and 4 (1 st power train) ............... d05, d12, d15 outputs 2 and 3 (2 nd power train) .............. d05, d12, d15 operating ambient temperature range t a = ? 40 to 85 c ...................................... - 8 options: inhibit ........................................................... -i open frame ................................................. z rohs compliant for all six substances ........ g 1 1 g is always placed at the end of the part number. 40 imx35 d05 d05 -8 i z g product marking converters without option z are marked with type designation, input and output voltages and currents, applicable safety approval and recognition marks, company logo, production date, and serial no.
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 3 of 15 functional description the imx35 converters are comprised of 2 feedback-controlled interleaved-switching flyback power trains using current mode pwm (pulse width modulation). each converter consists of 4 electrically isolated outputs deriving from 2 power trains. vo1, vo4 derive from the first power train and vo2, vo3 from the second one. thus each pair of outputs is independent from the other one. voltage regulation for each pair of outputs is achieved with passive transformer feedback from the main transformer of the power train. each pair of outputs has the same output voltage (i.e. d05, d12, etc.). if both power trains have the same output fig. 1 block diagram of quad-output models voltage (e.g. d12d12), all outputs may be simultaneously adjusted by the trim input (pin 5). in case of different output voltages (e.g. d05d15), the trim1 input influences only vo1 and vo4. current limitation is provided by the primary circuit for each power train and limits the possible output power for each pair of outputs. in the case of an overload on either of the power trains, which causes the output voltage to fall less than typically 60% of v o nom , the entire converter will shut down and automatically restart in short intervals (hiccup mode). the incorporated overtemperature protection shuts down the converter in excessive overload conditions with automatic restart. pwm 4 8 1 vi+ sd pul 5 trim/trim1 6 w 7 ref 2 vi? 16 15 17 18 13 14 12 11 vo4 ? vo1+ vo1? vo4+ vo2+ vo2 ? vo3+ vo3 ? 03098a 3 n.c. 19 n.c.
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 4 of 15 electrical input data general conditions: t a = 25 c, unless specified pins 8 (shutdown or i), 6 (w), 5 (trim or trim1), and 1 (pul) left open-circuit (not connected), unless specified. table 2: input data input 20i mx35 40 imx35 unit characteristics conditions min typ max min typ max v i input voltage range 1 t a min to t a max 9 2 36 18 2 75 vdc v i nom nominal input voltage i o = 0 to i o nom 20 40 v i sur repetitive surge voltage abs. max input (3 s) 40 100 t start-up converter switch on worst case condition at 0.25 0.5 0.25 0.5 s start-up time 2 s d high v i min and full load 0.1 0.1 t rise rise time 3 v i nom resist load 3 3 ms i o nom capac. load 6 12 6 12 i i o no load input current i o = 0, v i min to v i max 70 50 ma i irr reflected ripple current i o = 0 to i o nom 30 30 ma pp i inr p inrush peak current 4 v i = v i nom 89a c i input capacitance for surge calculation 2 1.3 f v s ? d ? shut down voltage converter disabled ?10 to 0.7 ?10 to 0.7 v converter operating open circuit or 2 to 20 open circuit or 2 to 20 r s ? d ? shutdown input resistance approx. 10 approx. 10 k ? i s ? d ? input current during shutdown v i min to v i max 12 6 ma f s switching frequency v i min to v i max , i o = 0 to i o nom 220 240 220 240 khz input 70 i mx35 110 imx35 unit characteristics conditions min typ max min typ max v i input voltage range 1 t a min to t a max 40 2 121 60 2 150 5 vdc v i nom nominal input voltage i o = 0 to i o nom 70 110 v i sur repetitive surge voltage abs. max input (3 s) 150 170 t start-up converter switch on worst case condition at 0.25 0.5 0.4 0.7 s start-up time 2 s d high v i min and full load 0.1 0.1 t rise rise time 3 v i nom resist load 3 3 ms i o nom capac. load 6 12 6 12 i i o no load input current i o = 0, v i min to v i max 30 20 ma i irr reflected ripple current i o = 0 to i o nom 30 30 ma pp i inr p inrush peak current 4 v i = v i nom 77a c i input capacitance for surge calculation 0.5 0.5 f v s ? d ? shut down voltage converter disabled ?10 to 0.7 ?10 to 0.7 v converter operating open circuit or 2 to 20 open circuit or 2 to 20 r s ? d ? shutdown input resistance approx. 10 approx. 10 k ? i s ? d ? input current during shutdown v i min to v i max 55ma f s switching frequency v i min to v i max , i o = 0 to i o nom 220 240 220 240 khz 1 v i min will not be as stated, if v o is increased above v o nom by use of trim input. if the output voltage is set to a higher value, v i min will be proportionately increased. 2 input undervoltage lockout at typ. 85% of v i min . 3 measured with resistive and max. admissible capacitive load. 4 source impedance according to ets 300132-2, version 4.3. 5 154 v during 2 s
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 5 of 15 reverse polarity protection the built-in suppressor diode also provides for reverse polarity protection at the input by conducting current in the reverse direction. an external fuse is required to limit this current. table 3: recommended external fuses in the non-earthed input line converter model fuse type 20IMX35 f8.0 a 40imx35 f4.0a 70imx35 f2.0a 110imx35 f1.5a inrush current the inrush current has been kept as low as possible by choosing a very small input capacitance. a series resistor may be installed in the input line in order to further reduce this current. fig. 2 typical inrush current at v i nom , p o nom versus time (40imx35). source impedance according to ets 300132-2 at v i nom . fig. 3 converter start-up and rise time (see table 2) fig. 4 example for external circuitry to comply with iec/en 61000- 4-5; the diode d is only necessary for 20IMX35 models. for very high energy transients as for example to achieve iec/en 61000-4-5 compliance (as per table electromagnetic immunity ) an external inductor and capacitor are required. the components should have similar characteristics as listed in table below. table 5: components for external circuitry for iec/en 61000-4-5, level 2 model inductor (l) capacitor (c) diode (d) 20IMX35 22 h /5 a 470 f / 40 v 1.5 k e47a 40imx35 68 h / 2.7 a 2 x 100 f /100 v - 70imx35 100 h / 1 a 2 x 82 f /200 v - 110imx35 150 h /0.8 a 2 x 82 f / 200 v - input transient voltage protection a built-in suppressor diode provides effective protection against input transients, which may be generated for example by short-circuits across the input lines, where the network inductance may cause high energy pulses. table 4: built-in transient voltage suppressor model breakdown peak power peak pulse voltage at 1 ms current v br nom [v] p p [ ? ? ? ? ? ] i pp [a] 20IMX35 39 1500 22 40imx35 100 1500 9.7 70imx35 151 600 2.9 110imx35 176 600 2.5 t 04022b 0 20 40 60 80 100 s 4 3 2 1 a v o nom v o t startup t rise t 04008b vi+ vi? c l d + 04036a
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 6 of 15 electrical output data general conditions: ? t a = 25 c, unless t c is specified ? pins 8 (shutdown or i), 6 (w), 5 (trim or trim1), and 1 (pul) left open-circuit (not connected), unless specified. table 6: output data per double-output power train (vo1/vo4 or vo2/vo3; each power train has 2 outputs) output 2 x 5 v 2 x 12 v 2 x 15 v unit characteristics conditions min typ max min typ max min typ max v o1 output voltage v i nom 4.95 5.05 11.88 12.12 14.85 15.15 vdc v o2 i o = 0.5 i o nom 4.94 5.06 11.86 12.14 14.82 15.18 i o nom output current 20imx v i min to v i max 2 1.35 2 0.65 2 0.55 a 40imx 2 1.4 2 0.70 2 0.60 70imx 2 1.4 2 0.70 2 0.60 110imx 2 1.4 2 0.70 2 0.60 i ol current limit 1 20imx v i nom , t c = 25 c 3.5 1.8 1.5 40imx v o = 93% v o nom 3.8 2.0 1.7 70imx 3.8 2.0 1.7 110imx 3.8 2.0 1.7 ? v o line regulation v i min to v i max , i o nom 1 1 1 % ? v o l load regulation v i nom 3 3 3 i o = (0.1 to 1) i o nom v o1/2 output voltage noise v i min to v i max 2 80 120 150 mv pp i o = i o nom 3 40 60 70 v o l output overvoltage limit. 4 min. load 1% 115 130 115 130 115 130 % c o ext admissible capacitive load produced after 2011 0 6000 0 680 0 470 f per power train 5 v o d dynamic voltage deviat. v i nom 250 480 520 mv t d load recovery time i o nom ? 1 / 2 i o nom 0.75 0.75 0.75 ms regulation vo temperature coefficient v i min to v i max 0.02 0.02 0.02 %/k ? v o / ? t c i o = (0.1 to 1) i o nom 1 both outputs of each power train connected in parallel. the current limit is primary side controlled. in the event of a sustain ed overload condition, the thermal protection may cause the converter to shut down (restart on cool-down). 2 bw = 20 mhz, measured with an external capacitor of 1 f across the output pins. 3 measured with a probe according to en 61204 4 the overvoltage protection is via a primary side second regulation loop, not tracking with trim control. 5 sum of the capacities on both outputs of each power train
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 7 of 15 fig. 5 maximum allowed output power versus ambient temperature. overtemperature protection the converter is protected against possible overheating by means of an internal temperature monitoring circuit. it shuts down the converter above the internal temperature limit and attempts to automatically restart. this feature prevents excessive internal temperature building up which could occur under heavy overload conditions. short circuit behavior the current limit characteristic shuts down the converter whenever a short circuit is applied to an output. it acts self- protecting and automatically recovers after removal of the overload condition (hiccup mode). thermal considerations if a converter, mounted on a pcb, is located in free, quasi- stationary air (convection cooling) at the indicated maximum ambient temperature t a max (see table temperature specifi- cations ) and is operated at its nominal input voltage and output power, the case temperature t c (t c z with option z) measured at the measuring point of case temperature (see mechanical data ) will approach the indicated value t c max after the warm- up phase. however, the relationship between t a and t c 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 the surfaces and properties of the printed circuit board. t a max is therefore only an indicative value, and under practical operating conditions, the ambient temperature t a may be higher or lower than this value. caution: the case temperature t c (or t c z ) measured at the measuring point of case temperature (see mechanical data ) may under no circumstances exceed the specified maximum value. the installer must ensure that under all operating conditions t c (or t c z ) remains within the limits stated in the table temperature specifications. the converters provide the specified output power with free air convection cooling. in the upper temperature range the output power derating below should be observed. series and parallel connection the outputs of one or several double-output power trains may be connected in series respecting the current limitation. both outputs of the same power train can always be connected in parallel in will behave like a single output. several outputs of the same converter with equal output voltage (e.g. 5 v / 5 v) can be connected in parallel and will share their output currents almost equally. if outputs of the same converter are being parallel and series- connected, it is recommended that outputs from the same power trains are parallel-connected first. this applies for instance, if 24 v shall be generated by a converter with four 12 v outputs; see fig. 7. fig. 6 overload switch off (hiccup mode), typical values. note: parallel operation of several converters may cause start- up problems. this becomes noticable in applications, where one converter is not able to deliver allone the full resistive and capacitive load current, as it is required in true redundant systems. 70 100 v o [%] t 05041b 0.3 s overload short-circuit condition switch-off 0 1.0 0.8 0.6 0.4 0 0.2 20 40 60 80 100 c p o / p o max 11047-x35a t a 0.5 m/s = 100 lfm natural cooling pwm 4 8 1 vi+ sd pul 5 trim 6 w 7 ref 2 vi? 16 15 17 18 13 14 12 11 vo4? vo1+ vo1? vo4+ vo2+ vo2? vo3+ vo3? jm138 3 n.c. 19 n.c. ?24v +24v imx35d12d12-9 fig. 7 generating 24 v with an imx35d12d12-9
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 8 of 15 fig. 9 cross load regulation (typ.) on power train 1. v o4 versus i o1 fig. 10 flexible load distribution (typ.) on power train 1 of a 40imx35d12d12-8: v o1 versus i o1 , i o4 = 0.5 i o4 nom fig. 8 v o versus i o (typ.) of double-output power trains, with both outputs in parallel (e.g., v o1/4 of a 40imx35d12d12) typical performance curves general conditions: ? t a = 25c, unless t c is specified. ? shut down and trim pin left open-circuit. 8 9 10 11 12 13 v o [v] 0.5 1 1.5 2 a i o total 0 05020-x35 v o 1 , v o4 [v] i o1 / i o1 nom 05039b 14 13 12 11 10 0 0.25 0.5 0.75 1 1.5 1.25 v o 1 v o 4 11.5 12 12.5 13 13.5 v o4 [v] 0.06 0.2 0.3 0.4 0.5 0.6 0.7 a 0 . 1 05164b i o4 = 0.35 a i o4 = 0.035 a i o1 fig. 12 efficiency versus input voltage and load. typical values (40imx35d12d12-8) 60 70 80 90 [%] 50 75 100 % p o p o tota l 25 05152a v i min v i nom fig. 11 efficiency versus input voltage and load. typical values (20IMX35d12d12-8) 60 70 80 90 [%] 50 75 100 % p o p o total 25 05153a v i min v i nom
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 9 of 15 table 7: r ext for v o > v o nom ; approximate values (v i nom , i o = 0.5 i o nom ) v o [% v o nom ] r ext [k ? ? ? ? ? ] trim trim1 105 to 108 (107 typically) 0 0 105 10 17 102 62 110 100 ? auxiliary functions adjustable output voltage as a standard feature, the imx35 offer adjustable output voltages in the range of 85 to 105% of v o nom . fig. 12 shows the schematic diagram for the adjustment of quad-output models. all models with equal output voltages have a trim input at pin 5 referenced to the primary side, influencing all outputs simul- taneously. models with different output voltages exhibit a trim1 input, influencing only the first power train ( v o1 and v o4 ). adjustment by means of an external resistor r ext : fig. 13 output voltage control by means of the trim input table 8: v o versus v ext for v o = 85 to 105% v o nom ; typical values (v i nom , i o = 0.5 i o nom ) v o [% v o nom ] v ext [v] trim [v] trim1 [v] >105 0 0 102 1.8 1.5 100 2.5 2.5 95 4.3 4.25 90 6.2 6.2 85 8 8 synchronization (w) it is possible to synchronize the switching frequency of one or more converters to an external clock signal. this logic input w can be used to synchronize the oscillator to an external frequency source. this signal is edge-triggered with ttl thresholds and requires a source frequency of 490 to 540 khz (duty cycle 10 to 90%). the external source frequency is internally divided by 2 to define the switching frequency of the converter. if unused, this pin can be connected to v1? (pin 2) or left open-circuit. reference output (ref) the converter provides a stable 5 v (0.1 v) reference signal on pin 7 (ref). the output is protected by a 1 k ? resistor. the signal may be used also in conjunction with the trim input (pin 5) as a limited external voltage reference. it is recommended to connect a filter capacitor (0 .1 f) between ref and vi?, if ref is used. shutdown the outputs of the converters may be enabled or disabled by means of a logic signal (ttl, cmos, etc.) applied to shut- down (pin 8). if the shutdown function is not required, pin 8 should be left open-circuit: converter operating: 2.0 to 20 v converter disabled: ?10 to 0 .7 v adjustment of the output voltage by means of an external resistor r ext is possible within the range of 100 to 105% of v o nom . r ext should be connected between trim (pin 5) and vi? (pin 2). the following table indicates suitable resistor values for typical output voltages under nominal conditions ( v i nom , i o = 0.5 i o nom ). note: connection of r ext to vi+ may damage the converter. adjustment by means of an external voltage source v ext for external output voltage adjustment in the range 85 to 105% of v o nom a voltage source v ext (0 to 20 v) is required, connected to trim or trim1 (pin 5) and vi?. the table below indicates typical values v o versus v ext . applying a control voltage of 15 to 20 v will set the converter into the hiccup mode. direct paralleling of the trim pins of converters of the same type connected in parallel is feasible. trim vo1+ vo2? + v ext ? vi+ vi? r ext vo1? vo2+ 06137c control circuit v ref = 2.5 v 4 5 2 16 15 13 14
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 10 of 15 progr. input undervoltage lockout pul a special feature of the converters (with rev. ba or later) is the adjustable undervoltage lockout protection, which protects the converter (and the system) from high current caused by operation at low input voltages. this ensures easier start-up in distributed power systems. the table below shows the band of switch on/off and the hysteresis. the undervoltage lockout levels may be programmed by using an external resistor r pul between pul and vi ? to increase the preset levels as specified in table 10. table 10: typical values for r pul and the respective lockout voltage for input voltage. 20 imx35 40 imx35 r pul [kw] v i min [v] r pul [kw] v i min [v] 8 15.5 39 10 43 22 19 12 16 26 13 14 10 28 9.1 16 0 32 70 imx35 110i mx35 r pul [kw] v i min [v] r pul [kw] v i min [v] 31 42 270 40 270 50 110 50 120 60 80 55 51 75 table 9: trigger level and hysteresis (pin 1 left open) model t rigger level hysteresis unit 20IMX35 7 to 8 <0.5 v 40imx35 14 to 15.5 <1 70imx35 31 to 34 <3 110imx35 42 to 50 <8
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 11 of 15 electromagnetic immunity table 11: immunity type tests phenomenon standard class coupling value waveform source test in perf- level mode 1 applied imped. procedure oper. crit. 2 electrostatic iec/en 2 contact discharge 4000 v p 1/50 ns 330 ? 10 positive and yes b discharge 61000-4-2 (trim pin open) 10 negative to case 3 air discharge 8000 v p discharges (trim pin open) electromagnetic iec/en 3 3 antenna 10 v/m am 80% n.a. 80 to 1000 mhz yes a field 61000-4-3 1 khz env 50204 3 antenna 10 v/m pm, 50% duty n.a. 900 mhz yes a cycle, 200 hz repetition frequ. electrical fast iec/en 4 direct +i/?i 4000 v p bursts of 5/50 ns 50 ? 60 s positive, yes b transient s/burst 61000-4-4 2.5/5 khz 60 s negative over 15 ms, transients per burst period coupling mode 300 ms surges iec/en 3 4 +i/ ? i 2000 v p 1.2/50 s 2 ? 5 pos. and 5 neg. yes b 61000-4-5 surges en 50155: a 5 +i/ c, ?i/c 1800 v p 5/50 s 100 ? yes b 2001 b 6 +i/ c, ?i/c 8400 v p 0.05/ 0.1 s 100 ? yes b rf conducted iec/en 3 +i / ? i 10 vac am modulated 50 ? 0.15 to 80 mhz yes a immunity 61000-4-6 (140 dbv) 80%, 1 khz 150 ? 1 i = input, o = output, c = case (not with option z) 2 a = normal operation, no deviation from specification, b = temporary deviation from specs. possible. 3 corresponds to en 50121-3-2:2000, table 9.1 4 external components required; see fig. 4 5 corresponds to en 50155:1995, waveform d 6 corresponds to en 50155:1995, waveform g effective protection against high input transient voltages which typically occur in many installations, but especially in battery- driven mobile applications. electromagnetic compatibility (emc) a suppressor diode together with an input filter form an fig. 14 typ. disturbances (quasi-peak and average) at the input according to en 55011/ 22, measured at v i nom and i o nom (110imx35d05d12-8 with input choke 2 1.1 mh). electromagnetic emissions pmm 8000 plus: peak, conducted vi+, qp + av, 2006-10-01, 2x 1.1 mh, 110imx35d05d12, u i =110 v, u o1 =u o4 =5 v, i o1 =u o4 =1.4 a, u o2 =u o3 =12 v i o2 =u o3 =0.6 a 0 dbv 20 60 80 0.2 0.5 1 2 5 10 20 mhz jm072 40 en 55022 a qp en 55022 a av
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 12 of 15 fig. 15 external filter circuitry table 12: input filter components model common mode choke ceramic cap l 1 (murata) c 1 20IMX35 70 h / 3.6 a, plh10an7003r6p2 4.7 f / 50 v 40imx35 160 h / 2.1 a, plh10an1612r1p2 2.2 f / 100 v 70imx35 290 h / 1.2 a, plh10an2911r2p2 1 f / 200 v 110imx35 370 h / 1.0 a, plh10an3711r0p2 1 f / 200 v conducted emission according to en 55011/55022, class a, can be achieved by adding an external common mode choke and an additional ceramic capacitor. the filter components should be placed as close as possible to the input of the converter; see figure 15. immunity to environmental conditions table 13: mechanical and climatic stress test method standard test conditions status cab damp heat iec/en 60068-2-78 t emperature: 40 2 c converter steady state mil-std-810d section 507.2 relative humidity: 93 +2/-3 % not duration: 56 days operating -- salt mist test en 50155:2007 t emperature: 35 2 c converter sodium chloride sect. 12.2.10 duration: 48 h not (nacl) solution 2 class st3 2 operating eb bump iec/en 60068-2-29 acceleration amplitude: 25 g n = 245 m/s 2 converter (half-sinusoidal) mil-std-810d section 516.3 bump duration: 6 ms operating number of bumps: 6000 (1000 in each direction) fc vibration iec/en 60068-2-6 acceleration amplitude: 0.35 mm (10 ? 60 hz) converter (sinusoidal) mil-std-810d section 514.3 5 g n = 49 m/s 2 (60 - 2000 hz) operating frequency (1 oct/min): 10 ? 2000 hz test duration: 7.5 h (2.5 h in each axis) fh random vibration iec/en 60068-2-64 acceleration spectral density: 0.05 g n 2 /hz converter broad-band frequency band: 8 ? 500 hz operating (digital control) and acceleration magnitude: 4.9 g rms guidance test duration: 1.5 h (0.5 h in each axis) ea shock iec/en 60068-2-27 acceleration amplitude: 50 g n = 490 m/s 2 converter (half-sinusoidal) mil-std-810d section 516.3 bump duration: 11 ms operating number of bumps: 18 (3 in each direction) -- shock en 50155:2007 sect. 12.2.11 acceleration amplitude: 5.1 g n converter en 61373 sect. 10, class b, bump duration: 30 ms operating body mounted 1 number of bumps: 18 (3 in each direction) -- simulated long life en 50155:2007 sect. 12.2.11 acceleration spectral density: 0.02 g n 2 /hz converter testing at en 61373 sect. 8 and 9, frequency band: 5 ? 150 hz operating increased random body mounted 1 acceleration magnitude: 0.8 g n rms vibration levels test duration: 15 h (5 h in each axis) 1 body mounted = chassis of a railway coach 2 models without option z vi+ vi? l i + ? converter 07114c c i
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 13 of 15 63.5 76.2 63.5 0.8 x 0.8 5.08 5 0.3 10.5 0.3 09121c 69.6 56.9 thread m3 t c bottom view 4 threads m3 mechanical data dimensions in mm. fig. 16 case imx35 (standard) material: zinc; weight: approx. 67 g fig. 17 case imx35 open frame (option z) weight: approx. 43 g temperatures reliability table 15: mtbf at nom. load model ground benign ground fixed ground mobile device hours 1 unit 40 c 40 c 70 c 50 c 40imx35 (mil-hdbk-217f, t c ) 336 000 141 000 86 000 110 000 396 000 h 110imx35 (bellcore, t a ) 1445 000 529 000 294 000 144 000 1 the device hours are based upon the imx35 series field failure rate recorded between 2000 and 2005 european projection table 14: temperature specifications, valid for air pressure of 800 to 1200 hpa (800 to 1200 mbar) temperature -8 unit characteristics conditions min max t a ambient temperature operational 1 ?40 3 85 1 c t c case temperature (without opt. z) 2 ?40 3 105 2 t c z component temp. with opt. z 2 ?40 3 110 2 t s storage temperature non operational ? 55 105 1 see thermal considerations 2 temperature measurment point; see mechanical data 3 start-up at ? 55 c 5.08 47.8 63.5 72.8 6 .4 0.3 8.9 0.2 0.8 x 0.8 09123c t c z t c z cores t c z bottom view
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 14 of 15 table 16: pin allocation pin no. quadruple output 1 pul 2 vi? 3 n.c. 4 vi+ 5 trim or trim1 6w 7 ref 8 sd or i 11 vo3? 12 vo3+ 13 vo2+ 14 vo2? 15 vo1? 16 vo1+ 17 vo4+ 18 vo4? 19 n.c. safety and installation instructions pin allocation fig. 18 footprint. the holes in the pcb should have a diameter of 1.5 mm. installation instructions 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. connection to the system shall be made via a printed circuit board with hole diameters of 1.5 mm for the pins. the converters should be connected to a secondary circuit. do not open the converter. ensure that a converter failure (e.g., by an internal short- circuit) does not result in a hazardous condition. input fuse to prevent excessive current flowing through the input supply line in case of a short-circuit in the converter, an external fuse should be installed in the non-earthed input line. we recommend a fast acting fuse specified in table 3. standards and approvals all converters are safety-approved to iec/en 60950 -1 and ul/csa 60950-1 2 nd ed. the converters have been evaluated for: ? building-in ? basic insulation input to output, based on their maximum input voltage ? pollution degree 2 (not option z) ? connecting the input to a secondary circuit, which is subject to a maximum transient rating of 1500 v. the converters are subject to manufacturing surveillance in accordance with the above mentioned standards. cb scheme is available. railway applications to comply with railway standards, all components are coated with a protective lacquer (except for option z). protection degree the protection degree is ip 30 (not for option z). cleaning liquids in order to avoid possible damage, any penetration of cleaning fluids should be prevented, since the converters are not hermetically sealed. however, open-frame models (option z) leave the factory unlacquered; they may be lacquered by the customer, for instance together with the mother board. cleaning liquids are not permitted ? except washing at room temperature with isopropyl alcohol and de-inonized/destilled water (1 : 1) . note: cleaning liquids may damage the adhesive joints of the ferrite cores. 09122a 1 2 3 4 5 6 7 8 11 12 13 14 15 16 17 18 19 bottom view
? imx35 series data sheet 35 watt quad-output dc-dc converters bcd20009-g rev ac, 06-may-2013 page 15 of 15 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 wr itten 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 dependi ng on the date manufactured. specifications are subject to change without notice. isolation the electric strength test is performed in the factory as a routine test in accordance with en 50116, en 60950, and ul table 17: electric strength test voltages characteristic input to input to outputs to between unit (outputs+case) (outputs+case) case outputs 20/40imx35 1 70/110imx35 1 all models 1 all models factory test >1 s 1.2 1.8 0.5 0.15 2 kvac equivalent dc voltage 1.5 2.5 0.7 0.2 2 kvdc insulation resistance >100 >100 ? ? m ? at 500 vdc 1 for open-frame models (option z), only the insulation input to outputs is tested. 2 the test voltage between outputs is not applied as routine test. 60950 and should not be repeated in the field. power-one will not honor any warranty claims resulting from electric strength field tests. fig. 19 if the inhibit pin is not used, connect it to vi?. vi+ vi ? i 06138a 4 8 2 options i: inhibit (negative shutdown logic) the outputs of the converter may be enabled or disabled by means of a logic signal (ttl, cmos, etc.) applied to the inhibit pin 8. if the inhibit function is not required the inhibit (pin 8) should be connected to vi? to enable the output (active low logic, fail safe). voltage at pin 8: converter operating: ?10 v to 0.8 v converter disabled: 2.4 v to 20 v or left open-circuit 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. g: rohs-6 converters with a type designation ending by g are rohs- compliant for all six substances.

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