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ich 360-watt series wide input isolated half brick dc-dc www.murata - ps.com/support mdc_ich_360w_ a0 4 page 1 of 17 features 4:1 input voltage range of 9-36v single outputs of 12v, 24v or 28v 2250v isolation voltage (input-to-output) industry standard half brick package 2.4" x 2.5" x 0.52" (61mm x 64mm x 13.2mm) efficiency up to 95.6% excellent thermal performance over-current and short circuit protection over-temperature protection monotonic startup into pre-bias loads 200khz fixed switching frequency remote on/off control (positive or negative logic) good shock and vibration damping operating temperature range -40oc to +105oc rohs compliant product overview the 4:1 input voltage 360 watt single output ich dc -dc converter provides a precisely regulated dc output. the output voltage is fully isolated from the input, allowing the output to be positive or negative polarity and with various grou nd connections. the enclosed half brick package meets the most rigorous performance standards in an industry stand ard footprint for mobile (12v in ), process control (24v in ), and commercial-off-the-shelf (28v in ) applications. the ich series includes an external trim adjust and remote on/off control. threaded through holes are provided to allow easy mounting or the addition of a heat sink for ex tended temperature operation. the converters high efficiency and high power densi ty are accomplished through use of high-efficiency synchro nous rectification technology, advanced electronic circu it, packaging and thermal design thus resulting in a hi gh reliability product. the converter operates at a fi xed frequency of 200khz and follows conservative component derati ng guidelines. product is designed and manufactured in the usa. part number structure and ordering guide product family i c ic= industrial class form factor h h = half brick vout* 0 1 01 = 12vout, 02 = 5vout, 03 = 3.3vout, 04 = 24vout , 05 = 28vout output current 3 0 max iout in amps vin range v 1 v1 = 9 to 36v on/off control logic p n = negative, p = positive (standard) specific customer configuration x x customer code, omit for standard rohs compliant c rohs 6/6 compliant description part number structure definition and options *note: some part number combinations might not be a vailable. please contact the factory for non-standa rd or special order products. model number input range (vdc) vout (vdc) iout (a) min max ich0130v1xc 9 36 12 30 ich0415v1xc 9 36 24 15 ich0513v1xc 9 36 28 13
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 2 of 17 ich 360-watt series wide input isolated half brick dc-dc electrical specifications C all models conditions: t a = 25oc, airflow = 300 lfm (1.5m/s), vin = 24vdc, un less otherwise specified. specifications subject to change without notice. parameter notes min typ max units absolute maximum ratings input voltage continuous 0 40 v transient (100ms) 50 v operating temperature (see note 1) baseplate (100% load) -40 105 oc storage temperature -55 125 oc isolation characteristics and safety isolation voltage input to output 2250 v input to baseplate & output to baseplate 1500 v isolation capacitance 4500 pf isolation resistance 10 20 mg insulation safety rating basic agency approvals designed to meet ul/ c ul 60950, iec/en 60950-1 feature characteristics fixed switching frequency output voltage ripple has twice this frequency 200 khz output voltage trim range 10 % remote sense compensation this function is not provided n/a % output overvoltage protection non-latching 117 124 130 % overtemperature shutdown (baseplate) non-latching 110 120 oc auto-restart period applies to all protection features 450 500 550 ms turn-on time from v in time from uvlo to v o =90% v out (nom) resistive load 517 530 ms turn-on time from on/off control trim from on to v o =90% v out (nom) resistive load 17 20 ms rise time v out from 10% to 90% 4 7.5 11 ms on/off control - positive logic on state pin open = on or external voltage applied 2 12 v control current leakage current 0.16 ma off state 0 0.8 v control current sinking 0.3 0.36 ma on/off control - negative logic on state pin shorted to -input or 0.8 v off state pin open = off or 2 12 v thermal characteristics thermal resistance baseplate to ambient converter soldered to 3.95 x 2.5 x 0.07 4 layer/ 2oz copper fr4 pcb. 5.2 oc/w 1. a thermal management device, such as a heatsink, is required to ensure proper operation of this device . the thermal management medium is required to maintain baseplate < 105oc for full rated power.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 3 of 17 ich 360-watt series wide input isolated half brick dc-dc electrical specifications C ich0130v1 conditions: t a = 25oc, airflow = 300 lfm (1.5m/s), vin = 24vdc, un less otherwise specified. specifications subject to change without notice. parameter notes min typ max units input characteristics operating input voltage range 9 24 36 v input under voltage lockout non-latching turn-on threshold 8.2 8.5 8.8 v turn-off threshold 7.7 8 8.3 v lockout hysteresis voltage 0.4 0.55 0.7 v maximum input current v in = 9v, 80% load 45.3 a v in = 12v, 100% load 33.2 a v in = 24v, output shorted 65 ma rms input stand-by current converter disabled 2 4 ma input current @ no load converter enabled 240 280 ma minimum input capacitance (external) esr < 0.1 g 470 f inrush transient vin = 36v (0.4v/sec), no external input cap 0.4 1 a 2 s input terminal ripple current, i c 25 mhz bandwidth, 100% load (fig. 2) 560 ma rms output characteristics output voltage range 11.64 12.00 12.36 v output voltage set point accuracy (50% load) 11.88 12.00 12.12 v output regulation over line v in = 9v to 36v 0.05 0.15 % over load v in = 24v, load 0% to 100% 0.08 0.15 % temperature coefficient 0.015 0.03 %/oc overvoltage protection 14.0 15.6 v output ripple and noise - 20mhz bandwidth (fig. 3) 100% load, c ext = 470 f/70mg + 1 f ceramic 120 180 mv pk-pk 30 60 mv rms external load capacitance full load (resistive) -40 oc < ta < +105 oc c ext esr 470 4700 f 10 100 mg output current range (see fig. a) v in = 9v - 36v 0 30 a current limit inception v in = 9v - 36v 33 36 39 a rms short-circuit current non-latching, continuous 4 7 a rms dynamic response load change 50% - 75% - 50%, di/dt = 1a/s c o = 470 f/70mg + 1 f ceramic 200 320 mv load change 50% - 100% - 50%, di/dt=1a/s c o = 470 f/70mg + 1 f ceramic 450 mv setting time to 1% of v out 400 s efficiency 100% load v in = 24v 93.7 94.4 95.1 % v in = 12v 92.9 93.6 94.3 % 50% load v in = 24v 94.1 94.8 95.5 % v in = 12v 94.0 94.7 95.1 %
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 4 of 17 ich 360-watt series wide input isolated half brick dc-dc electrical specifications C ich0415v1 conditions: t a = 25oc, airflow = 300 lfm (1.5m/s), vin = 24vdc, un less otherwise specified. specifications subject to change without notice. parameter notes min typ max units input characteristics operating input voltage range 9 24 36 v input under voltage lockout non-latching turn-on threshold 8.2 8.5 8.8 v turn-off threshold 7.7 8.0 8.3 v lockout hysteresis voltage 0.4 0.55 0.7 v maximum input current v in = 9v, 80% load 45 a v in = 12v, 100% load 42 a v in = 24v, output shorted 75 ma rms input stand-by current converter disabled 2 4 ma input current @ no load converter enabled 240 300 ma minimum input capacitance (external) esr < 0.1 g 470 f inrush transient vin = 36v (0.4v/sec), no external input cap 0.4 1 a 2 s input terminal ripple current, i c 25 mhz bandwidth, 100% load (fig. 2) 600 ma rms output characteristics output voltage range 23.28 24.00 24.72 v output voltage set point accuracy (50% load) 23.76 24.00 24.24 v output regulation over line v in = 9v to 36v 0.05 0.15 % over load v in = 24v, load 0% to 100% 0.08 0.15 % temperature coefficient 0.015 0.03 %/oc overvoltage protection 28.1 31.2 v output ripple and noise - 20mhz bandwidth (fig. 3) 100% load, c ext = 470 f/70mg + 1 f ceramic 240 360 mv pk-pk 50 80 mv rms external load capacitance full load (resistive) -40 oc < ta < +105 oc c ext esr 470 2200 f 10 100 mg output current range (see fig. a) v in = 9v - 36v 0 15 a current limit inception v in = 9v - 36v 16.5 18 19.5 a rms short-circuit current non-latching, continuous 3.8 6 a rms dynamic response load change 50% - 75% - 50%, di/dt = 1a/s c o = 470 f/70mg + 1 f ceramic 280 420 mv load change 50% - 100% - 50%, di/dt=1a/s c o = 470 f/70mg + 1 f ceramic 500 mv setting time to 1% of v out 600 s efficiency 100% load v in = 24v 94.5 95.2 95.9 % v in = 12v 93.8 94.5 95.2 % 50% load v in = 24v 94.5 95.4 96.1 % v in = 12v 94.6 95.2 95.9 %
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 5 of 17 ich 360-watt series wide input isolated half brick dc-dc electrical specifications C ich0513v1 conditions: t a = 25oc, airflow = 300 lfm (1.5m/s), vin = 24vdc, un less otherwise specified. specifications subject to change without notice. parameter notes min typ max units input characteristics operating input voltage range 9 24 36 v input under voltage lockout non-latching turn-on threshold 8.2 8.5 8.8 v turn-off threshold 7.7 8 8.3 v lockout hysteresis voltage 0.4 0.55 0.7 v maximum input current v in = 9v, 80% load 45 a v in = 12v, 100% load 42 a v in = 24v, output shorted 55 ma rms input stand-by current converter disabled 2 4 ma input current @ no load converter enabled 240 280 ma minimum input capacitance (external) esr < 0.1 g 470 f inrush transient vin = 36v (0.4v/sec), no external input cap 0.4 1 a 2 s input terminal ripple current, i c 25 mhz bandwidth, 100% load (fig. 2) 560 ma rms output characteristics output voltage range 27.16 28.00 28.84 v output voltage set point accuracy (50% load) 27.72 28.00 28.28 v output regulation over line v in = 9v to 36v 0.05 0.15 % over load v in = 24v, load 0% to 100% 0.08 0.15 % temperature coefficient 0.015 0.03 %/oc overvoltage protection 32.8 36.4 v output ripple and noise - 20mhz bandwidth (fig. 3) 100% load, c ext = 470 f/70mg + 1 f ceramic 280 380 mv pk-pk 50 85 mv rms external load capacitance full load (resistive) -40 oc < ta < +105 oc c ext esr 470 2200 f 10 100 mg output current range (see fig. a) v in = 9v - 36v 0 13 a current limit inception v in = 9v - 36v 14.3 15.6 16.9 a rms short-circuit current non-latching, continuous 2.2 6 a rms dynamic response load change 50% - 75% -50%, di/dt = 1a/s c o = 470 f/70mg + 1 f ceramic 180 300 mv load change 50% - 100% - 50%, di/dt=1a/s c o = 470 f/70mg + 1 f ceramic 400 mv setting time to 1% of v out 500 s efficiency 100% load v in = 24v 94.3 95.4 96.1 % v in = 12v 93.7 94.4 95.1 % 50% load v in = 24v 94.3 95.0 95.7 % v in = 12v 94.0 94.7 95.1 %
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 6 of 17 ich 360-watt series wide input isolated half brick dc-dc environmental and mechanical specifications: specifications subject to change without notice. parameter notes min typ max units environmental operating humidity non-condensing 95 % storage humidity non-condensing 95 % rohs compliance see murata website http://www.murata-ps.com/en/support/rohs-compliance .html for the complete rohs compliance statement shock and vibration (see note 1) designed to meet mil-std-810g for functional shock and vibration water washability not recommended for water wash process. contact the factory for more information. mechanical unit weight 3.85 ounces 109.2 grams pcb operating temperature 130 oc tg 170 oc through hole pin diameters pins 1,4,5 and 9 0.079 0.081 0.083 inches 2.006 2.057 2.108 mm pins 3 and 7 0.038 0.04 0.042 inches 0.965 1.016 1.067 mm through hole pins material pins 1,4,5 and 9 copper alloy pins 3 and 7 brass alloy tb3 or eco brass through hole pin finish all pins 10? gold over nickel case dimensions 2.4 x 2.5 x 0.52 inches 60.96 x 63.50 x 13.21 mm case material plastic: vectra lcp fit30: 1/2-16 edm finish baseplate material aluminum flatness 0.008 inches 0.20 mm reliability mtbf telcordia sr-332, method i case 1 50% electrical stress, 40oc components 5.4 mhrs emi and regulatory compliance conducted emissions mil-std-461f c102 with external emi filter network (see figures, 34 and 35) 1. the unit must be properly secured to the interface medium (pcb/chassis) by use of the threaded inserts of the unit. figure a: output power as function of input voltage .
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 7 of 17 ich 360-watt series wide input isolated half brick dc-dc technical notes input and output capacitance in many applications, the inductance associated wit h the distribution from the power source to the input of the converter can affect the stability of the converter. this becomes of great consideration for input voltage at 12v or below. in order to enable proper operation o f the converter, in particular during load transients, an additional in put capacitor is required. minimum required input capacitance, mounted close t o the input pins, is 1000f with esr < 0.1 g. since inductance of the in put power cables could have significant voltage drop due to rate of change of input current di(in)/dt during transient load operation an external capacitance on the output of the converter is required to reduce di(in)/ dt. it is required to use at least 470 f (esr < 0.07g) on the output. another constraint is minimum rms current rating of the input and output capacito rs which is application dependent. one component of input rms current handl ed by input capacitor is high frequency component at switching frequency of the converter (typ. 400khz) and is specified under input terminal ripple current i c . typical values at full rated load and 24 vin are provided in section characteristic waveforms for each model a nd are in range of 0.56a - 0.6a. second component of the ripple curren t is due to reflected step load current on the input of the converter. si milar consideration needs to be taken into account for output capacitor and i n particular step load ripple current component. consult the factory for f urther application guidelines. additionally, for emi conducted measurement it is n ecessary to use 5h lisns instead of typical 50h lisns. on/off (pin 3) the on/off pin is used to turn the power converter on or off remotely via a system signal and has positive logic. a typical c onnection for remote on/off function is shown in fig. 1. the negative logic version turns on when the on/off pin is at logic low and turns off when at logic high. the converter is on when the on/off pin is either shorted to -input pin or kept below 0.8v. the converter is off when the on/off pin is either left open or external voltage greater than 2v and not more than 12v is applied between on/off pin and -input pin. see the electrical specifications for logic high/lo w definitions. the on/off pin is internally pulled up to typically 4.5v via resistor and connected to internal logic circuit via rc circuit in order to filter out noise that may occur on the on/off pin. a properly de-bou nced mechanical switch, open-collector transistor, or fet can be us ed to drive the input of the on/off pin. the device must be capable of sink ing up to 0.36ma at a low level voltage of < 0.8v. during logic high, t he typical maximum voltage at on/off pin (generated by the converter) is 4.5v, and the maximum allowable leakage current is 160a. if not using the remote on/off feature leave the on/off pin open. ttl logic level - the range between 0.81v as maximu m turn off voltage and 2v as minimum turn on voltage is considered the dead-band. operation in the dead-band is not recommended. external voltage for on/off control should not be a pplied when there is no input power voltage applied to the converter. protection features: input undervoltage lockout (uvlo) input undervoltage lockout is standard with this co nverter. the converter will shut down when the input voltage drops below a pre-determined voltage. the input voltage must be typically above 8.5v for the converter to turn on. once the converter has been turned on, it will shut off when the input voltage drops typically below 8v. if the converter is started by input voltage (on/off (pin 3) left open) there is typically 500msec delay from the moment when input voltage is above 8.5v turn-on voltage and the time when output voltage starts rising. this dela y is intentionally vin (+) ich converter vout (+) provided to prevent potential startup issues especi ally at low input voltages. vin control input on/off vin (-) (top view) vout (-) rload output overcurrent protection (ocp) the converter is protected against overcurrent or s hort circuit conditions. upon sensing an overcurrent condition, the converte r will switch to constant current operation and thereby begin to red uce output voltage. when the output voltage drops below approx. 75% of the nominal value of output voltage, the converter will shut down. fig. 1: circuit configuration for on/off function. the positive logic version turns on when the on/off pin is at logic high and turns off when at logic low. the converter is o n when the on/off pin is either left open, or external voltage not more t han 12v is applied between on/off pin and -input pin. see the electrical speci fications for logic high/low definitions. once the converter has shut down, it will attempt t o restart nominally every 500msec with a typical 3% duty cycle. the att empted restart will continue indefinitely until the overload or short c ircuit conditions are removed or the output voltage rises above 75% of it s nominal value.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 8 of 17 ich 360-watt series wide input isolated half brick dc-dc ( ) r { [ ] ? } [k ] once the output current is brought back into its sp ecified range, the converter automatically exits the hiccup mode and c ontinues normal operation. during initial startup, if output voltage does not exceed typical 75% of nominal output voltage within 20 msec after the con verter is enabled, the converter will be shut down and will attempt to restart after 500 msec. output overvoltage protection (ovp) the converter will shut down if the output voltage across vout (+) (pin 5) and vout (-) (pin 9) exceeds the threshold of th e ovp circuitry. the ovp circuitry contains its own reference, independe nt of the output voltage regulation loop. once the converter has shu t down, it will attempt to restart every 500 msec until the ovp con dition is removed. output voltage adjust/trim (pin7) the trim pin allows user to adjust output voltage 1 0% up or down relative to rated nominal voltage by addition of ex ternal trim resistor. due to absence of remote sense pins, an external tr im resistor should be connected to output pins using kelvin connection . if trimming is not used, the trim pin should be left open. trim down - decrease output voltage trimming down is accomplished by connecting an exte rnal resistor, r trim-down, between the trim (pin7) and the vout(-) (pin 9) usi ng kelvin connection, with a value of: r trim-d o wn = ( 3010 ? 60.2 ) [k?] overtemperature protection (otp) the ich converters have non-latching overtemperatur e protection. it will shut down and disable the output if temperatur e at the center of the base plate exceeds a threshold of 114oc (typica l). where, r trim-down = required value of the trim-down resistor [kg] vo( nom ) = nominal value of output voltage [v] vo( req ) = required value of output voltage [v] the converter will automatically restart when the base = temperature has decreased by approximately 20oc [%] safety requirements basic insulation is provided between input and the output. the converters have no internal fuse. to comply wit h safety agencies requirements, a fast-acting or time-delay fuse is t o be provided in the unearthed lead. recommended fuse values are: a) 50a for 9v < v in <18v b) 25a for 18v < v in <36v to trim the output voltage 10% ( =10) down, required external trim resistance is: r trim-down = 3010 ? 60.2 = 240.8 [ k ] 10 trim up - increase output voltage trimming up is accomplished by connecting an extern al resistor, r trim-up, between the trim (pin 7) and the vout(+) (pin 5) us ing kelvin connection, with a value of : electromagnetic compatibility (emc) vo (nom)?(100+?) trim -up = 30.1 ? 1.225? (100+2?) ? emc requirements must be met at the end-product sy stem level, as no specific standards dedicated to emc characterist ics of board mounted component dc-dc converters exist. with the addition of a two stage external filter, t he ich converters will pass the requirements of mil-std-461f ce102 base cu rve for conducted emissions. absence of the remote sense pins customers should be aware that ich converters do no t have a remote sense feature. care should be taken to minimize vol tage drop on the users motherboard as well as if trim function is u sed. to trim the output voltage up, for example 24v to 2 6.4v, =10 and required external resistor is: r trim -u p = 30.1 ? {[ 24 ? (100+10 ) ] ? (100+2 ?10) } = 6125 [ k ] 1 . 225 ? 10 10 note that trimming output voltage more than 10% is not recommended and ovp may be tripped. active voltage programming in applications where output voltage needs to be ad justed actively, an external voltage source, such as for example a digi tal-to-analog converter (dac), capable of both sourcing and sinki ng current can be used. it should be connected with series resistor r g across trim (pin 7) and vout (-) (pin 9) using kelvin connection. pl ease contact murata technical representative for more details. vo (req ) ?vo (nom ) vo (nom )
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 9 of 17 ich 360-watt series wide input isolated half brick dc-dc thermal consideration the ich converter can operate in a variety of therm al environments. however, in order to ensure reliable operation of t he converter, sufficient cooling should be provided. the ich con verter is encapsulated in plastic case with metal baseplate o n the top. in order to improve thermal performance, power components in side the unit are thermally coupled to the baseplate. in additio n, thermal design of the converter is enhanced by use of input and out p ins as heat transfer elements. heat is removed from the converter by co nduction, convection and radiation. there are several factors such as ambient temperatu re, airflow, converter power dissipation, converter orientation how converter is mounted as well as the need for increased reliabili ty that need to be taken into account in order to achieve required per formance. it is highly recommended to measure temperature in the mi ddle of the baseplate in particular application to ensure that proper cooling of the convert is provided. a reduction in the operating temperature of the con verter will result in an increased reliability. thermal derating there are two most common applications: 1) the ich converter is thermally attached to a cold plate inside chassis w ithout any forced internal air circulation; 2) the ich converter is m ounted in an open chassis on system board with forced airflow with or without an additional heatsink attached to the baseplate of th e ich converter. the best thermal results are achieved in applicatio n 1) since the converter is cooled entirely by conduction of heat from the top surface of the converter to a cold plate and temperature of the components is determined by the temperature of the cold plate. t here is also some additional heat removal through the converters pins to the metal layers in the system board. it is highly recommended to s older pins to the system board rather than using receptacles. typical derating output power and current are shown in figs. 7C12 for vario us baseplate temperatures up to 105oc. note that operating conve rter at these limits for prolonged time will affect reliability. soldering guidelines the rohs-compliant through hole ich converters use sn/ag/cu pb- free solder and rohs compliant components. they are designed to be processed through wave soldering machines. the pin s are 100% matte tin over nickel plated and compatible with bo th pb and pb-free wave soldering processes. it is recommended to fol low specifications below when installing and soldering ich converters. exceeding these specifications may cause damage to the ich converte r. wave solder guideline for sn/ag/cu based solders maximum preheat temperature 115oc maximum pot temperature 270oc maximum solder dwell time 7 seconds wave solder guideline for sn/pb based solders maximum preheat temperature 105oc maximum pot temperature 250oc maximum solder dwell time 6 seconds ich converters are not recommended for water wash p rocess. contact the factory for additional information if water was h is necessary. fig. 2: test setup for measuring input reflected ri pple currents i c and i s. fig. 3: test setup for measuring output voltage rip ple, startup and step load transient waveforms.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 10 of 17 ich 360-watt series wide input isolated half brick dc-dc characteristic curves - efficiency and power dissip ation fig. 4: ich0130v1pc efficiency curve fig. 5: ich0130v1pc power dissipation fig. 6: ich0415v1pc efficiency curve fig. 7: ich0415v1pc power dissipation fig. 8: ich0513v1pc efficiency curve fig. 9: ich0513v1pc power dissipation
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 11 of 17 ich 360-watt series wide input isolated half brick dc-dc characteristic curves C derating vs. baseplate temp erature fig. 10: ich0130v1pc derating curve (p out ) fig. 12: ich0415v1pc derating curve (p out ) fig. 14: ich0513v1pc derating curve (p out ) fig. 11: ich0130v1pc derating curve (i out ) fig. 13: ich0415v1pc derating curve ( iout ) fig.15: ich0513v1pc derating curve (i out )
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 12 of 17 ich 360-watt series wide input isolated half brick dc-dc characteristic waveforms - ich0130v1pc fig. 16: turn-on by on/off transient (with vin appl ied) at full rated load current (resistive) at vin = 24v. top trace (c 1): on/off signal (5 v/div.). bottom trace (c4): output voltage (5 v/div .). time: 5 ms/div. fig. 17: turn-on by vin (on/off high) transient at full rated load current (resistive) at vin = 24v. top trace (c2): input vol tage vin (10 v/div.). bottom trace (c4): output voltage (5 v/div.). time: 100 ms/div. fig. 18: output voltage response to load current st ep change 50% - 75% - 50% (15a-22.5a-15a) with di/dt = 1a/s at vin = 2 4v. top trace (c4): output voltage (200 mv/div.). bottom trace (c3): lo ad current (20a/div.). co = 470 f/70m . time: 1ms/div. fig. 20: output voltage ripple (100 mv/div.) at ful l rated load current into a resistive load at vin = 24v. co= 470 f/70m . time: 2 s/div. fig. 19: output voltage response to load current st ep change 50% - 100% - 50% (15a-30a-15a) with di/dt = 1a/s at vin = 24v. top trace (c4): output voltage (500 mv/div.). bottom trace (c 3): load current (20a/div.). co = 470 f/70m . time: 1ms/div. fig. 21: input reflected ripple current, ic (500 ma /mv), measured at input terminals at full rated load current at vin = 24v. refer to fig. 2 for test setup. time: 2 s/div. rms input ripple curren t is 1. 125*500ma = 560 ma.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 13 of 17 ich 360-watt series wide input isolated half brick dc-dc characteristic waveforms - ich0415v1pc fig. 22: turn-on by on/off transient (with vin appl ied) at full rated load current (resistive) at vin = 24v. top trace (c1): o n/off signal (5 v/ div.). bottom trace (c4): output voltage (10 v/div. ). time: 5 ms/div. fig. 23: turn-on by vin transient (on/off high) at full rated load current (resistive) at vin = 24v. top trace (c2): input vol tage vin (10 v/div.). bottom trace (c4): output voltage (10 v/div.). time : 100 ms/div. fig. 24: output voltage response to load current st ep change 50% - 75% - 50% (7.5a-11.25a-7.5a) with di/dt = 1a/s at vin = 24v. top trace (c4): output voltage (200 mv/div.). bottom trace (c 3): load current (10a/div.). co = 470 f/70m . time: 1ms/div. fig. 25: output voltage response to load current st ep change 50% - 100% - 50% (7.5a-15a-7.5a) with di/dt = 1a/s at vi n = 24v. top trace (c4): output voltage (500 mv/div.). bottom tr ace (c3): load current (10 a/div.). co = 470 f/70m . time: 1ms/div. fig. 26: output voltage ripple (200 mv/div.) at ful l rated load current into a resistive load at vin = 24v. co= 470 f/70m . time: 2 s/div. fig. 27: input reflected ripple current, ic (500 ma /mv), measured at input terminals at full rated load current at vin = 24v. refer to fig. 2 for test setup. time: 2 s/div. rms input ripple curren t is 1. 205*500ma = 602.5ma.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 14 of 17 ich 360-watt series wide input isolated half brick dc-dc characteristic waveforms - ich0513v1pc fig. 28: turn-on by on/off transient (with vin appl ied) at full rated load current (resistive) at vin = 24v. top trace (c1): o n/off signal (5 v/ div.). bottom trace (c4): output voltage (10 v/div. ). time: 5 ms/div. fig. 29: turn-on by vin transient (on/off high) at full rated load current (resistive) at vin = 24v. top trace (c2): input vol tage vin (10 v/div.). bottom trace (c4): output voltage (10 v/div.). time : 100 ms/div. fig. 30: output voltage response to load current st ep change 50% - 75% - 50% (6.5a-9.75a-6.5a) with di/dt = 1a/s at vin = 24v. top trace (c4): output voltage (200 mv/div.). bottom trace (c 3): load current (10a/div.). co = 470f/70m . time: 1ms/div. fig. 31: output voltage response to load current st ep change 50% - 100% - 50% (6.5a-13a-6.5a) with di/dt = 1a/s at vi n = 24v. top trace (c4): output voltage (500 mv/div.). bottom tr ace (c3): load current (10a/div.). co = 470f/70m . time: 1ms/div. fig. 32: output voltage ripple (200mv/div.) at full rated load current into a resistive load at vin = 24v. co= 470 f/70m . time: 2 s/div. fig. 33: input reflected ripple current, ic (500ma/ mv), measured at input terminals at full rated load current at vin = 24v. refer to fig. 2 for test setup. time: 2s/div. rms input ripple current is 0.935*500ma = 549ma.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 15 of 17 ich 360-watt series wide input isolated half brick dc-dc emc consideration: the filter schematic for suggested input filter con figuration as tested to meet the conducted emission limits of mil-std 461f ce102 base curve is shown in fig. 34. the plots of conducted emi spectrum are shown in fig. 35. note: customer is ultimately responsible for the pr oper selection, component rating and verification o f the suggested parts based on the end application. earth comp. des. description c1, c2, c12, c14 470f/50v/70m electrolytic capacitor (vishay mal214699108e3 or e quivalent) c3, c4, c5, c6 4.7nf/1210/x7r/1500v ceramic capacit or c7, c8, c9, c10, c11, c13 10f/1210/x7r/50v ceramic capacitor l1 cm choke: l = 130h, l lkg = 0.6h (4 turns on toroid 22.1mm x 13.7mm x 7.92m m) fig. 34: typical input emi filter circuit to attenu ate conducted emissions per mil-std-461f ce102 base curve. a) without input filter. cin = 2 x 470f/50v/70m . b) with input filter from fig. 34. fig.35: input conducted emissions measurement (typ. ) of ich0415v1pc
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 16 of 17 ich 360-watt series wide input isolated half brick dc-dc mechanical specifications : notes: unless otherwise specified: all dimensions are in inches [millimeters] tolerances: x.xx in. 0.02 in. [x.x mm 0.5mm] x.xxx in. 0.010 in [x.xx mm 0.25mm] torque fasteners into threaded mounting inserts at 10in.lbs. or less. greater torque may result in damage to uni t and void the warranty. input/output connections : pin name function 1 -input negative input voltage 3 on/off ttl input with internal pull up, referenced to -input, used to turn converter on and off 4 +input positive input voltage 5 +output positive output voltage 7 trim output voltage trim 9 - output negative output voltage notes: 1) pinout is inconsistent between manufacturers of the half brick converters. make sure to follow the pin function an d the pin number, when laying out your board. 2) pin diameter for the input pins of the ich conve rters has diameter 0.081? due to high input current at low line, and i s different from other manufacturers of the half brick. make sure to follo w pin dimensions in your application.
www.murata - ps.com/support mdc_ich_360w_ a0 4 page 17 of 17 ich 360-watt series wide input isolated half brick dc-dc packaging information : 1. shipping tube material: anti-static pvc 2. all end view dimensions are inside dimensions. 3. all dimensions are 0.010?. 4. cardboard shipping box is 16? x 10? x 10? 5. maximum number of units (mpq) per box is 120 con verters. 6. box is top filled with anti-static shipping pean uts murata power solutions, inc. 129 flanders road, westborough ma 01581 u.s.a. iso 9001 and 14001 registered this product is subject to the following operating requirements and the life and safety critical appli cation sales policy: refer to: http://www.murata-ps.com/requirements/ murata power solutions, inc. makes no representatio n that the use of its products in the circuits desc ribed herein, or the use of other technical information contained herein, will not infringe upo n existing or future patent rights. the description s contained herein do not imply the granting of licenses to make, use, or sell equipment constructe d in accordance therewith. specifications are subje ct to change without notice. ? 2018 murata power solutions, inc.

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