1 slc100 rev b 5/2004 product selection chart 40 amp single output quarter brick dc/dc converter slc100 corporate: www.cdtechno.com industry standard footprint & size - 2.28 x 1.45 high ef?ciency wide input voltage range: 36 C 75vdc output voltages: 1.0v,1.2 v, 1.5v, 1.8v, 2.0v, 2.5v, 3.3v, 5.0v & 12v output voltagetrim function remote sense for output compensation remote on/off control referenced to input side (positive or negative logic) output current limit no minimum load requirement smd models with position perfect tm interconnects isolation voltage of 2000 vdc fixed frequency operation ul/cul 60950 recognized (us & canada), basic insulation rating meets tnv-selv isolation requirements meets conducted emissions requirements of fcc class b and en55022 class b with external filter no heatsink required thermal shutdown input undervoltage lockout the slc100 series is a 40 amp single output, low-pro?le dc-dc converter in an industry standard package of 2.28 x 1.45 x 0.40. the slc100 uses unique proprietary technologies to deliver ultra- high ef?ciencies and excellent thermal performance. it includes extensive control and protection features for maximum ?exibility and provides a versatile solution for a whole range of applications with its input voltage range of 36-75 vdc and output voltages between 1.0vdc and 12.0vdc. the power dissipation of the slc100 series is so low that a heat sink is not required. thermal derating curves are provided indicating maximum allowable output current versus air?ow and ambient temperature. the product features fast dynamic response characteristics and low output ripple critical for low voltage applications. slc dc-dc converter modules are certi?ed to ul/cul 60950, and vde to en60950. it meets cispr22/ en55022/fcc15j class b specs for emi levels with external ?ltering. this high quality and highly reliable product is competitively priced and an ideal solution for distributed power, telecoms and datacom applications. * note 1: maximum output current for smd models is 25a. input current at rated load (a) (48vin) 1 product: www.cdpoweronline.com nominal rated input output output current efficiency voltage voltage min rated (%) model (v dc ) (v dc ) load(a) output (a) 1 typical slc100 48 1.0 0.0 40 tbd tbd slc100 48 1.2 0.0 40 1.80 80 slc100 48 1.5 0.0 40 2.20 82 slc100 48 1.8 0.0 40 tbd tbd slc100 48 2.0 0.0 40 tbd tbd slc100 48 2.5 0.0 40 tbd tbd slc100 48 3.3 0.0 30 tbd tbd slc100 48 5.0 0.0 20 tbd tbd slc100 48 12.0 0.0 8.3 tbd tbd obsolete product contact factory for replacement model
2 input voltage range isolation input/output isolation voltage capacitance resistance features turn on time remote sense compensation output voltage trim range output over voltage protection over temperature shutdown shutdown turn on input under voltage protection turn off turn off lockout hysteresis voltge on/off logic function logic low ion/off logic low von/off logic high ion/off logic high von/off general switching frequency mttf (per telcordia tr-nwt-000332) absolute maximum ratings, all models common electrical specifications parameter conditions min typ max units v dc v dc pf m w ms % of v nom % of v nom % of v nom c c v dc v dc ma v dc a v dc khz hrs 36 48 75 2000 2000 10 tbd tbd 5.00 5 -10 +10 tbd open collector 0.8 tbd tbd 200 31.50 32.50 32.50 33.70 +120 +140 parameter conditions min typ max units common electrical specifications, all models speci?cations are at t a = +25c, air?ow = 300lfm (1.5m/s) at nominal input voltage unless otherwise speci?ed. input voltage-operating input voltage-operating operating ambient temperature storage temperature output short circuit duration lead temperature (soldering, 10 sec max) continuous 75 v dc continuous transient (100 ms) tbd v dc -40 +100 c c -40 +125 +300 c tbd input to output input to output output to within 1% of vnom 0 2.2 v dc
3 slc100 rev b 5/2004 mechanical (through hole) notes: general tolerance; .015 pin locations/diameters: .005 dimensions are in inches [millimeters] pin material: copper pin finish: matte tin over nickel converter weight: [30.8g] mechanical (smt) pin functions 1 +vin 2 remote on/off 3 -vin 4 -vout 5 - sense 6 trim 7 + sense 8 +vout interconnect functions 1 +vin 2 remote on/off 3 -vin 4 -vout 5 - sense 6 trim 7 + sense 8 +vout * interconnect co-planarity within 0.004 ul/tuv standards require a clearance greater than 0.06 between input and output for basic insulation. this should be considered if copper traces are used on the top side of the board under the con- verter unit. ferrite cores are considered part of the input/primary circuit. ul/tuv standards require a clearance greater than 0.06 between input and output for basic insulation. this should be considered if copper traces are used on the top side of the board under the con- verter unit. ferrite cores are considered part of the input/primary circuit. notes: general tolerance; .015 interconnect locations/ diameters: .005 dimensions are in inches [millimeters] pin material: copper pin finish: matte tin over nickel converter weight: [30.8g]
4 ordering information model number vout (vdc) pinout logic slc100 - 1 1.0 through hole positive slc100 - 2 1.2 through hole positive slc100 - 3 1.5 through hole positive slc100 - 4 1.8 through hole positive slc100 - 5 2.0 through hole positive slc100 - 6 2.5 through hole positive slc100 - 7 3.3 through hole positive slc100 - 8 5.0 through hole positive scl100 - 9 12.0 through hole positive slc100 - 10 1.0 smd positive slc100 - 11 1.2 smd positive slc100 - 12 1.5 smd positive slc100 - 13 1.8 smd positive slc100 - 14 2.0 smd positive slc100 - 15 2.5 smd positive slc100 - 16 3.3 smd positive slc100 - 17 5.0 smd positive slc100 - 18 12.0 smd positive model number vout (vdc) pinout logic slc100 - 19 1.0 through hole negative slc100 - 20 1.2 through hole negative slc100 - 21 1.5 through hole negative slc100 - 22 1.8 through hole negative slc100 - 23 2.0 through hole negative slc100 - 24 2.5 through hole negative slc100 - 25 3.3 through hole negative slc100 - 26 5.0 through hole negative scl100 - 27 12.0 through hole negative slc100 - 28 1.0 smd negative slc100 - 29 1.2 smd negative slc100 - 30 1.5 smd negative slc100 - 31 1.8 smd negative slc100 - 32 2.0 smd negative slc100 - 33 2.5 smd negative slc100 - 34 3.3 smd negative slc100 - 35 5.0 smd negative slc100 - 36 12.0 smd negative
5 slc100 rev b 5/2004 figure 1 C remote sensing output voltage trim the slc100s output voltage may be adjusted high or low by an amount indicated on the product data sheet. as shown in figure 2 , to raise the converters output voltage a resistor must be placed between the trim pin and +vout pin. figure 2 C trim up circuit remote sense slc100 + sense - sense trim + vout - vout + vin on/off - vin (top view) load c l c b c b slc100 + sense - sense trim + vout - vout + vin on/off - vin (top view) load r t when the load is physically distanced from the con- verter, the inductance of the power leads, and any by- pass conductance at the load, can result in increased phase shift in the converters feedback loop, causing instability. this situation can be eliminated by inserting bypass capacitors (c b ) from the outputs to the sense leads directly at the output pins. these capacitors de- couple any ac on the power lines and assure that only the dc voltage is sensed. when using remote sense with dynamic loads, the transient response at the point of load may be limited by the inductance present in the power lines. severe load steps may require the addition of a capacitor c l across the output lines. when the load demands an immediate increase in load current, this capacitor helps to supply a portion of the current and reduces the bur- den on the converter. in general, the line resistance, or load drop, between the output pins of the converter and load should be minimized. using remote sense, a large line resistance, with a regulated load voltage, will result in a higher output voltage at the output of the dc/dc converter. to prevent exceeding the converters output power limits, a higher output voltage will require a reduction in the maximum allowable output current in accordance with the voltage/current power relationship. to minimize the line resistance between the converter and the load, the converter should be placed as close to the load as possible. line resistance can further be decreased by using heavy gauge wire or by increasing the cross sec- tional area of the pc board traces. the remote sense feature of the slc100 can be used to compensate for voltage drops in the output power lines by sensing output voltage directly at the point of load. to enable this feature, connect the +sense and Csense pins to the +vout and Cvout pins, respectively, at the point in the circuit where the tightest regulation is required ( figure 1 ). the sense leads conduct very little current compared with the power leads and there- fore provide a more accurate indication of load voltage for regulation purposes. this enables the converter to increase (or decrease) its output voltage to compensate for any load distribution losses, allowing for a more precise load voltage. refer to the product data sheet for the maximum output voltage compensation range of application notes if remote sensing is not desired then +sense and -sense must be tied to their respective outputs for proper operation. ? ?
6 remote on/off function figure 4 C remote on/off control circuit protective functions temperature shutdown the over temperature shutdown feature of the slc100 will cause the unit to shutdown at a typical pwb tem- perature of tbd. this protective feature is comprised of a thermistor in the units control loop. at a tempera- ture of tbd this circuit will cause the pwm to go into an idle mode, resulting in no output from the converter and preventing damage to the converter components. when the temperature of the unit drops below tbd the fault condition will clear and the converter will resume normal operation. if the cause of the over temperature condition is not identi?ed and corrected the unit will continue to cycle on and off inde?nitely. input under-voltage shutdown the nominal input voltage for the slc100 is 48vdc. once turned on reducing the input voltage to 32.5 vdc nominal will shut down the device. at an input voltage less than 32.5v the under-voltage sensing circuit will send a signal to the pwm causing it to go into idle mode. this will result in no output from the converter, protecting the unit from a high input current condition. when the input voltage returns to a level above 32.5v the unit will return to normal operation. the unit will typically turn on at an input voltage of 33.7v nominal as indicated on the product data sheet. this is due to hysterisis designed into the protective circuit to prevent excessive cycling of the converter. the slc100 is equipped with a primary on/off pin used to remotely turn the converter on or off via a system signal. the input is ttl open-collector and/or fet open- drain compatible. for the positive logic model a system logic low signal will turn the unit off. for negative logic models a system logic high signal will turn the converter off. for negative logic models where no control signal will be used the on/off pin should be connected directly to Cvin to ensure proper operation. for positive logic models where no control signal will be used the on/off pin should be left open. slc100 + sense - sense trim + vout - vout + vin on/off - vin (top view) control signal application notes the resistance value required to achieve the desired amount of positive/negative trim can be determined by referring to the trim table for each model. if trimming is not desired then the trim pin may be left open. in addition to the resistor values provided in the trim tables, the following equations can be use to calculate the required resistor value for a desired output voltage. these equations apply for the 1.5v and above models. for 1.2v models the trim tables must be used. remote on/off control function slc100 + sense - sense trim + vout - vout + vin on/off - vin (top view) load r t figure 3 C trim down circuit to lower the converter output voltage a resistor must be placed between the trim pin and -vout pin as shown in figure 3 . brick wall current limiting to protect against fault or short-circuit conditions on the output, each module is equipped with current-limit- ing circuitry designed to provide continuous protection. after reaching the current limit point (typically 20% above the rated output current), the voltage will range between its rated value and zero, depending upon the amount of overload. the unit will remain in operation continuously during this period down to a short-circuit condition. once the short or overload has been elimi- nated, the output voltage will return to normal without cycling the input power.
7 slc100 rev b 5/2004 output over-voltage protection the slc100 has an output over voltage protection (ovp) circuit which monitors its own output voltage. if the output voltage of the converter exceeds between 120% and 140% of the nominal rating, the ovp circuit will shut down the converter. once the ovp has been tripped the unit will need to be reset by cycling the input power or by toggling the on/off power before normal operation can resume. slc100 units with a non-latching ovp feature are avail- able on request. please contact the factory for further details. safety the slc100 meets safety requirements per ul/cul 60950 and vde en60950, basic insulation rating. emc/emi considerations analysis pending. performance characterization thermal derating maximum output current vs. ambient temperature at various air?ow rates has been determined for each model of the slc100. each model was analyzed over an ambient temperature range of 0 to 85 o c and at air ?ows up to 600lfm. temperature limits for thermal derating curves were tbd c for semiconductor junction temperature and tbd c for board temperature. ef?ciency performance ef?ciency data for each model was determined as a function of both load current and input voltage. ef?ciency vs. input voltage was measured at full load, ambient temperature of 25 o c and air?ow of 300lfm. ef?ciency vs. load current was measured at 25 o c, a nominal input voltage of 48vdc and air?ow of 300lfm. graphs are provided for each model in their respective start-up, on/off and transient response for each model, waveforms are provided showing output voltage response and timing of input voltage power up/down, remote on/off state change and load current transient responses. output voltage transient responses are provided for step load changes of 50% to 75% & 75% to 50% of rated load current. waveforms for each application notes
8 slc100 1.2vout electrical specifications speci?cations are at t a = +25c, air?ow = 300lfm (1.5m/s) at nominal input voltage unless otherwise speci?ed. input output parameter conditions min typ max units input maximum input current inrush charge re?ected ripple current input voltage ripple rejection no load input current quiescent input current output voltage setpoint voltage range line regulation load regulation output ripple output current range output current limit inception ef?ciency transient response peak deviation settling time external load capacitance rated power 44 48 a 100 120 mvpk-pk 0 40 1 a 80 % 50,000 m f 50% to 75% load step at di/dt =0.1 a/ m s; cext =tbd tbd mv tbd m s 1.80 a tbd mapk-pk vin = 75vdc 0.180 mc -30 db 55 ma 2 ma 1.2 1.218 vdc tbd tbd vdc full load; vin = 36vdc full load (100hz-1khz) full load, xxmhz bandwidth no load 0.05 0.10 % of vnom 0.25 0.50 % of vnom 48 w tbd 1.182 over all conditions of line, load and temperature * note 1: maximum output current for smd models is 25a. disabled input current 3.0 ma recommended input fuse fast blow external fuse 7 a
9 slc100 1.5vout electrical specifications speci?cations are at t a = +25c, air?ow = 300lfm (1.5m/s) at nominal input voltage unless otherwise speci?ed. * note 1: maximum output current for smd models is 25a. input output parameter conditions min typ max units input maximum input current inrush charge re?ected ripple current input voltage ripple rejection no load input current quiescent input current output voltage setpoint voltage range line regulation load regulation output ripple output current range output current limit inception ef?ciency transient response peak deviation settling time external load capacitance rated power 44 48 a 100 mvpk-pk 0 40 1 a 82 % 50,000 m f 50% to 75% load step at di/dt =0.1 a/ m s; cext =tbd tbd mv tbd m s 2.20 a tbd mapk-pk vin = 75vdc 0.180 mc -30 db 75 ma 2 ma 1.5 1.520 vdc tbd tbd vdc full load; vin = 36vdc full load (100hz-1khz) full load, xxmhz bandwidth no load 0.05 0.10 % of vnom 0.25 0.50 % of vnom 48 w tbd 1.490 over all conditions of line, load and temperature disabled input current 3.0 ma recommended input fuse fast blow external fuse 7 a murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci?cations are subject to chan ge without notice. ? 2009 murata power solutions, inc. usa: mans?eld (ma), tel: (508) 339 3000, email: sales@murata-ps.com canada: toronto, tel: (866) 740 1232, email: toronto@murata-ps.com uk: milton keynes, tel: +44 (0)1908 615232, email: mk@murata-ps.com france: montigny le bretonneux, tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com germany: mnchen, tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com japan: tokyo, tel: 3-3779-1031, email: sales_tokyo@murata-ps.com osaka, tel: 6-6354-2025, email: sales_osaka@murata-ps.com china: shanghai, tel: +86 215 027 3678, email: shanghai@murata-ps.com guangzhou, tel: +86 208 221 8066, email: guangzhou@murata-ps.com singapore: parkway centre, tel: +65 6348 9096, email: singapore@murata-ps.com murata power solutions, inc. 11 cabot boulevard, mans?eld, ma 02048-1151 u.s.a. tel: (508) 339-3000 (800) 233-2765 fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com iso 9001 & iso 14001 registered
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