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bcd.00016 rev. aa, 3-sep-2010 page 1 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output applications ? distributed power architectures ? telecommunications equipment ? lan/wan applications ? data processing ? industrial applications features ? rohs lead free and lead-solder-exempted products are available ? single board design ? basic insulation ? 1500 vdc i/o electric strength test voltage ? low profile smt device: 8.5 mm ? excellent co-planarity ? low conducted and radiated emi ? output voltage sense function ? output voltage adjust, positive or negative ? output overcurrent protection ? synchronization function ? remote shutdown (primary referenced) ? operating temperature up to 100 c ? meets en55022 class a ? safety-approved to iec/en 60950-1 and ul/csa 60950-1 2 nd ed. description the sfs series of converters are low-profile, single- output dc-dc converters intended for smt placement and reflow soldering. the product provides onboard conversi on of standard telecom, datacom, and industrial input voltages to isolated low output voltages. proprietar y patented manufacturing process ensures optimal quality through full process automation. the c onverters are cost effective high perfo rmance alternatives to competing products on the market, both through hole and surface mount. model selection model input voltage vdc max. input current a output voltage v output current a output ripple/noise mv pp typical efficiency % sfs13za- m6 1 36 ? 72 0.8 1.5 13 60 80 sfs13zb- m6 1 36 ? 72 0.9 1.8 13 60 80 sfs13zd- m6 1 36 ? 72 1.2 2.5 13 80 81 sfs13ze m6 1 36 ? 72 1.5 3.3 13 80 86 sfs08zg m6 1 36 ? 72 1.4 5.0 8 80 86 1 for products rohs-compliant for all 6 substances, change the suffix -m6 to -m6g . model numbers highlighted in yellow are not recommended for new designs.
bcd.00016 rev. aa, 3-sep-2010 page 2 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output absolute maximum ratings stresses in excess of the absolute maximum ratings ma y cause performance degradation, adversely affect long term reliability and cause permanent damage to the converter. specifications apply over specified input voltage, output load and temperature ra nge, unless otherwise noted. parameter conditions/description min max unit input voltage (v i ) transient input voltage continuous transient, 100 ms 36 72 100 vdc vdc operating case temp. (t c ) all operating conditions ?40 100 c storage temperature (t s ) ?55 125 c on/off control voltage (v rc ) referenced to ?vi ?5 12 v environmental and mechanical specifications apply over specified input voltage, output load and temperature r ange, unless otherwise noted. parameter conditions/description min nom max unit shock iec68-2-27 100 g n sinusoidal vibration iec68-2-6 10 g n weight 25 g water washing standard process yes mtbf per bellcore tr-nwt-000332 (100% load @25 c, gb) 1 127 000 h isolation parameter conditions/description min nom max unit insulation safety rating v i = v i max basic electric strength test voltage 1500 vdc insulation resistance 10 m insulation capacitance 1100 pf input data specifications apply over specified input voltage, output load and temperature r ange, unless otherwise noted. parameter conditions/description min nom max unit input voltage (v i ) continuous 36 48 72 vdc input current when shutdown v i nom , remote control activated 2 5 ma input current no load v i nom , io = 0 20 50 ma turn-on input voltage ramping up, i o max (3.3v / 5v output versions only) 24 (34) 26 (35) 28 (36) v turn-off input voltage ramping down, i o max (3.3v / 5v output versions only) 25.5 (31.5) 27.5 (32.5) 29.5 (33.5) v turn-on time to output regulation band after remote control rise time 90 50 5 250 10 ms ms ms input reflected ripple current v i max , i o max 30 ma pp input capacitance 1.5 f
bcd.00016 rev. aa, 3-sep-2010 page 3 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output output data all specifications apply over input voltage, output load and temperature range, unless otherwise noted. sfs13za : 1.5 v/13 a parameter conditions/description min nom max unit output voltage setpoint accuracy v o v i nom , i o = 6.5 a, 25 c 1.48 1.50 1.52 v output current 1 i o v i min ? v i max 1 10 13 a line regulation v i min ? v i max , 50% i o max 25 mv load regulation v i nom , i o min ? i o max 10 25 mv dynamic regulation peak deviation settling time 50 ? 100% i o max load step change to 1% error band 250 500 mv s output voltage ripple 2 v r v i min ? v i max , i o min ? i o max , 10 mhz bandwidth 60 100 mv pp admissible load capacitance c o max i o max , v i nom 3 300 f output current limit threshold i cl v o 0.9 v o nom 110 200 %i o max switching frequency v i nom , i o max 650 khz temperature coefficient t co 0.06 %v o / c trim range v i min ? v i max , i o min ? i o max 1.35 1.65 v 1 below i o min the output maintains regulation but output ripple may increase 2 measured with a 1 f ceramic capacitor across output pins, as shown on page 9 typical characteristic curves output voltage vs load 0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 0 3 5 8 10 13 16 18 21 23 26 iout (a) vout (v) vin min vin nom vin max efficiency vs load 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 1 4 6 9 12 iout (a) efficiency vin min vin nom vin max
bcd.00016 rev. aa, 3-sep-2010 page 4 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output sfs13zb : 1.8 v/13 a parameter conditions/description min nom max unit output voltage setpoint v o v i nom , i o = 6.5 a, 25 c 1.78 1.80 1.82 v output current 1 i o v i min ? v i max 1 10 13 a line regulation v i min ? v i max , 50% i o max 25 mv load regulation v i nom , i o min ? i o max 10 25 mv dynamic regulation peak deviation settling time 50 ? 100% i o max load step change to 1% error band 250 500 mv s output voltage ripple 2 v r v i min ? v i max , i o min ? i o max , 10 mhz bandwidth 60 100 mv pp admissible load capacitance c o max i o max , v i nom 3 300 f output current limit threshold i cl v o 0.9 v o nom 110 200 %i o max switching frequency v i nom , i o max 650 khz temperature coefficient t co 0.06 %v o / c trim range v i min ? v i max , i o min ? i o max 1.62 1.98 v 1 below i o min the output maintains regulation but output ripple may increase 2 measured with a 1 f ceramic capacitor across output pins, as shown on page 9 typical characteristic curves output voltage vs load 0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 0 2 4 6 8 10 12 14 16 18 20 21 23 25 io ut (a) vout (v) vin min vin nom vin max efficiency vs load 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 1 1 3 4 5 6 8 9 10 12 13 iout (a) efficiency vin min vin nom vin max
bcd.00016 rev. aa, 3-sep-2010 page 5 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output sfs13zd : 2.5 v/13 a parameter conditions/description min nom max unit output voltage setpoint accuracy v o v i nom , i o = 6.5 a, 25 c 2.47 2.5 2.53 v output current 1 i o v i min ? v i max 1 10 13 a line regulation v i min ? v i max , 50% i o max 35 mv load regulation v i nom , i o min ? i o max 15 35 mv dynamic regulation peak deviation settling time 50 ? 100% i o max load step change to 1% error band 250 500 mv s output voltage ripple 2 v r v i min ? v i max , i o min ? i o max , 10 mhz bandwidth 80 130 mv pp admissible load capacitance c o max i o max , v i nom 3 300 f output current limit threshold i cl v o 0.9 v o nom 110 200 %i o max switching frequency v i nom , i o max 650 khz temperature coefficient t co 0.06 %v o / c trim range v i min ? v i max , i o min ? i o max 2.25 2.75 v 1 below i o min the output maintains regulation but output ripple may increase 2 measured with a 1 f ceramic capacitor across output pins, as shown on page 9. typical characteristic curves output voltage vs load 0,0 0,5 1,0 1,5 2,0 2,5 3,0 0 1 2 3 5 6 7 8 9 11 12 13 14 15 iout (a) vout (v) vin min vin nom vin max efficiency vs load 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 1 1 3 4 5 6 8 9 10 12 13 iout (a) efficiency vin min vin nom vin max
bcd.00016 rev. aa, 3-sep-2010 page 6 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output sfs13ze : 3.3 v/13 a parameter conditions/description min nom max unit output voltage setpoint accuracy v o v i nom , i o = 6.5 a, 25 c 3.26 3.3 3.34 v output current 1 i o v i min ? v i max 1 10 13 a line regulation v i min ? v i max , 50% i o max 45 mv load regulation v i nom , i o min ? i o max 20 45 mv dynamic regulation peak deviation settling time 50 ? 100% i o max load step change to 1% error band 350 500 mv s output voltage ripple 2 v r v i min ? v i max , i o min ? i o max , 10 mhz bandwidth 80 130 mv pp admissible load capacitance c o max i o max , v i nom 3 300 f output current limit threshold i cl v o 0.9 v o nom 110 200 %i o max switching frequency v i nom , i o max 650 khz temperature coefficient t co 0.06 %v o / c trim range v i min ? v i max , i o min ? i o max 3.0 3.6 v 1 below i o min the output maintains regulation but output ripple may increase 2 measured with a 1 f ceramic capacitor across out put pins, as shown on page 9 typical characteristic curves output voltage vs load 0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 0 2 4 6 8 10 12 14 16 18 20 21 23 25 iout (a) vout (v) vin min vin nom vin max efficiency vs load 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 1 1 3 4 5 7 8 9 10 12 13 iout (a) efficiency vin min vin nom vin max
bcd.00016 rev. aa, 3-sep-2010 page 7 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output sfs08zg : 5.0 v/8 a parameter conditions/description min nom max unit output voltage setpoint accuracy v o v i nom , i o = 6.5 a, 25 c 4.94 5.0 5.06 v output current 1 i o v i min ? v i max 0.8 6 8 a line regulation v i min ? v i max , 50% i o max 65 mv load regulation v i nom , i o min ? i o max 30 65 mv dynamic regulation peak deviation settling time 50 ? 100% i o max load step change to 1% error band 350 500 mv s output voltage ripple 2 v r v i min ? v i max , i o min ? i o max , 10 mhz bandwidth 80 130 mv pp admissible load capacitance c o max i o max , v i nom 3 300 f output current limit threshold i cl v o 0.9 v o nom 110 200 %i o max switching frequency v i nom , i o max 650 khz temperature coefficient t co 0.06 %v o / c trim range v i min ? v i max , i o min ? i o max 4.5 5.5 v 1 below i o min the output maintains regulation, but output ripple may increase 2 measured with a 1 f ceramic capacitor across out put pins, as shown on page 9 typical characteristic curves output voltage vs load 0,0 1,0 2,0 3,0 4,0 5,0 6,0 0 1 2 4 5 6 7 8 10 11 12 13 14 16 iout (a) vout (v) vin min vin nom vin max efficiency vs load 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 0 1 2 2 3 4 5 6 6 7 8 iout (a) efficiency vin min vin nom vin max
bcd.00016 rev. aa, 3-sep-2010 page 8 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output auxiliary functions data all specifications apply over input voltage, output load and temperature range, unless otherwise noted. parameter conditions/description min nom max units shutdown control : converter off converter on sink current shutdown pin is pulled low voltage source or open circuit v i = v i nom ?1.0 3.5 0.3 1.0 6 v v ma synchronization: frequency range ttl compatible square wave on sync pin. referenced to ?vi 700 800 khz voltage sense range available compensation 10 % temperature derating curves the derating curves below give an indication of the output power achievable with and without forced-air cooling. however in the final application, in order to ensure the reliability of the unit, care must be taken to ensure the maximum case temperature is not exceeded under any conditions. note : for continuous operation above 60 v input, t he available output power is further dera ted linearly up to 50% at 75 v input. th is additional derating is due to a predictable drop in efficiency at high input voltage. output power vs ambient temp. and airflow 0 20 40 60 80 100 120 0 10 20 30 40 50 60 70 80 90 100 ambient temperature (c) output power (%) 800lfm (4 m/s) 400lfm (2 m/s) 200lfm (1 m/s) 100lfm (0.5 m/s) 0 lfm
bcd.00016 rev. aa, 3-sep-2010 page 9 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output application and au xiliary functions this series of converters d oes not require any external components for proper operation. however, if the input voltage line contains significant inductance, a capacitor across the input terminals may be required to stabilize the input voltage. a minimum of 1 f, quality electrolytic or ceramic capacitor is recom- mended for this purpose. for output decoupling it is recommended to connect a 1 f ceramic capacitor directly across the output pins of the converter (illu strated as follows). shutdown the remote control pin functions as a normal soft shutdown. it is referenced to the ?vi pin. with positive logic, when the remote control pin is pulled low, the output is turned off, and the unit goes into a very low input power mode. an open-collector switch is recommended to control the voltage between the remote control pin and the ?vi pin. the remote control pin is pulled up internally, so no external voltage source is required. the user should not connect a resistor between the remote control pin and the +vi pin. the user must take care to ensure that the pin reference for the control is connected close to the ?vi pin. the control signal must not be referenced ahead of emi filtering, or remotely from the unit. if the remote control pin is not used, it can be left open- circuit. thermal considerations the converter is designed for natural or forced convection cooling. the output power of the converter is limited by the maximum case temperature (t c ). to ensure reliable long term operation of the converters, and to comply with safety agency requirements, power-one limits maxi mum allowable case temperature (t c ) to 100 c; see mechanical data . output current limitation when the output is loaded above the maximum output current rating, the voltage will start to reduce to maintain the output power to a safe level. in a condition of high overload or short-circuit, where the output voltage is pulled below approximately 30% of v o nom , the converter will enter a hiccup mode of operation. under this condi tion, the converter will attempt to restart, approxima tely every 20 ms, until the overload has cleared. sense lines the voltage sense feature compensates for voltage drops that may occur at t he point of load due to pcb tracks or other losses. pin 3 and pin 16 are used to sense the output voltage at point of load. if the sense feature is not used, it is necessary to connect pin 3 to pins 1 + 2 and pin 16 to pins 17 + 18. note : when the output voltage is sensed remotely at the load, the output power fr om the converter must not exceed its maximum rating. this is determined by measuring the voltage on the output pins, and multiplying it by the output current.
bcd.00016 rev. aa, 3-sep-2010 page 10 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output output voltage adjust this feature allows the user to adjust the output voltage. output voltage can be adjusted using an external resistor. to increase v o a resistor should be connected between pin 15 and pins 17 & 18. to decrease v o a resistor should be connected between pin 15 and pins 1 & 2. to increase v o : r ext = (a ? (d v o )) / (v o ? v o nom ) [ ] to reduce v o : r ext = ((b v o ) ? c) / v o nom ? v o ) [ ] model a b c d sfs13za 1945 1470 1944 470 sfs13zb 2590 1730 2560 750 sfs13zd 5010 2516 5010 1500 sfs13ze 7010 3161 7010 1500 sfs08zg 11260 4532 11240 1500 note : when the output voltage is trimmed up, the output power from the conver ter must not exceed its maximum rating. this is determined by measuring the voltage on the output pins, and multiplying it by the output current. parallel operation paralleling of two converters is not possible. synchronization it is possible to synchronize the switching frequency of one or more converters to an external symmetrical clock signal. consult factory for full application details, if this option is required. safety these converters are tested with 1500 vdc from input to output. the input-to-output resistance is greater than 10 m ? . these converters are provided with basic insulation between input and output. nevertheless, if the system using the converter needs to receive safety agency approval, certain rules must be followed in the design of the system. in particular, all of the creepage and clearance requirements of the end-use system must be observed. in order to consider the output of the converter as selv (safety extra low voltage) or tnv-1, according to iec/en 60950-1 and ul/csa 60950-1, the follow- ing requirements must be met in the system design: ? fuse: as the converter has no internal fuse, an external fuse must be provided to protect the system from catastrophic failure. we recommend a fuse with a rating not greater than 2.0 a. the user can select a fuse with lower rating based upon the maximum inrush transient and the maximum input current at the minimum input voltage. both input traces and the chassis ground trace (if applicable) must be capable of conducting a current of 1.5 times the value of the fuse without opening. the fuse must not be placed in the grounded input line. ? if the voltage source feeding the converter is selv, tnv-1, or tnv-2, the output of the con- verter is considered selv and may be grounded or ungrounded. ? the circuitry of the converter may generate transients, which exceed t he input voltage. even if the input voltage is selv (<60 v), the components on the primary side of the converter may have to be considered as hazardous. a safety interlock may be needed to prevent the user from accessing the converter while operational.
bcd.00016 rev. aa, 3-sep-2010 page 11 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output emc specifications conducted noise the converters meet the requirements of en 55022 class a (conducted noise on the input terminals) without external components; see below. to meet level b, it is necessary to fit a 5 f ceramic capacitor across the input terminals. electromagnetic susceptibility standard applied stress class level performance criterion * electrostatic discharge en61000-4-2 2 kv to pins 1 b electromagnetic field en61000-4-3 3 v/m 2 a electrical fast transient en61000-4-4 2000 v p to input 3 b conducted disturbances en61000-4-6 3 vac to input 2 b * a denotes normal operation, no deviation from specification. b denotes temporary deviation from specification possible. mechanical data dimensions in mm [inches] note : pickup point not central. jm063 pin 1 highest comoponent tc and pick up point. note that this point is off center of pcb max. nozzel size ? 6.5 mm max. 8.6 [0.338]
bcd.00016 rev. aa, 3-sep-2010 page 12 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output surface mount assembly soldering the following soldering instructions must be observed to prevent failure or sign ificant degradation of the converter performance. power-one will not honor any warranty claims arising from failure to observe these instructions. the lead-frame is constructed for a high temperature glass filled, ul94 v-0 flame retardant, dually ortho- phthalate molding compound commonly used for packaging of electronics components. it has passed nasa outgassing tests, and is certified to mil-m-14. the coefficient of thermal expansion is equivalent to fr4. the gull wing leads are formed to ensure optimal solder joint strength and structure. furthermore they facilitate visual inspection (manual or automatic). the leads are formed from a 97% cu alloy plated with ni and matte sn. this material is commonly used in the manufacture of integrated circuits. it has good corrosion resistance and exhibits the nobility inherent to all high copper alloys. unlike brasses, this material is essentially immune to stress corrosion cracking. it also exhibits excellent solderability. it is readily wetted by solders and performs we ll in standard solderability tests. (dip of class ii or better). the product is manufactured with a patented process, which is fully automated and ?in-line?. this ensures that there is no contamination or mechanical stress on the lead-frame so that the co-planarity and solderability are maintained. the product is shipped in jedec trays to ensure preservation of the co-planarity and enable fully automated assembly in the final application. mind the marking for pin 1! these products are approv ed for forced convection reflow soldering only. products rohs-compliant for all 6 substances (model designation ending with g) allow for a solder profile with higher temperatures; see tables below. recommended reflow profile (measured at the leads of the converter) product pre-heat ramp pre-heat soaking ramp to reflow reflow cooling from to rate from to time rate time above liquidus peak temp. time within 5 c of peak temp time to peak rate c c c/s c c s c s c s s c/s -m6 (sn-pb eutectic) 25 150 2 150 183 90 - 120 2 45 220 5 10 180 3 -m6g (lead-free) 25 180 2 180 217 90 - 120 2 45 240 5 10 210 3 worst case reflow parameters following j-std-020d (measured in the center, on top side of the converter) product pre-heat ramp pre-heat soaking ramp to reflow reflow cooling from to rate from to max. time rate max. time above liquidus max. peak temp. max. time within 5 c of peak temp. max. time to peak rate c c c/s c c s c s c s s c/s -m6 (sn-pb eutectic) 25 150 3 100 150 120 3 45 230 10 360 6 -m6g (lead-free) 25 180 3 150 200 120 3 45 260 10 480 6
bcd.00016 rev. aa, 3-sep-2010 page 13 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converte rs, 1.5 ? 5 v output pick & place assembly the product is designed to have a large flat area in the center of the top surface to serve as a pick up point for automated vacuum pick and place equipment. the ?open board? construction of the unit ensures that weight is kept to a minimum. however due to the relatively large size of the component, a large nozzle (>8 mm, depending on vacuum pressure) is recommended for picking and placing. the product may also be automatically handled using ?odd-form? placement equipment, with mechanical grippers. for this type of equipment the end edges of the device, which have no leads and also feature the greatest dimensional accuracy, should be used as pick-up points. recommended solder lands note : pickup point not central. packaging: jedec tray jm065
bcd.00016 rev. aa, 3-sep-2010 page 14 of 14 www.power-one.com sfs series data sheet 43w smt dc-dc converters, 1.5 ? 5 v output pin allocation pin designation function reference 1 +v o positive output voltage secondary 2 +v o positive output voltage secondary 3 +v sense positive output voltage sense secondary 4 nc not connected secondary 5 no pin no pin 6 no pin no pin 7 nc not connected primary 8 sync synchronization input primary 9 +v i positive input voltage primary 10 ?v i negative input voltage primary 11 shutdown shutdown control primary 12 nc not connected primary 13 no pin no pin 14 no pin no pin 15 trim output voltage adjust secondary 16 ?v sense output voltage sense return secondary 17 ?v o output voltage return secondary 18 ?v o output voltage return secondary nuclear and medical applications - power-one products are not des igned, 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 respecti ve divisional pr esident of power-one, inc. technical revisions - the appearance of pr oducts, including safety agency certificat ions pictured on labels, may change dependi ng on the date manufactured. specifications are subject to change without notice.

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