13 amp, 37 watt, dc/dc converters v out combinations of 3.3/2.5/1.8/1.5/1.2 volts dual output mixed voltage, dlv models features figure 1. simplifed schematic n n n n n n n n n n n n n datel, inc., mansfeld, ma 02048 (usa) tel: (508)339-3000, (800)233-2765 fax: (508)339-6356 email: sales@datel.com internet: www.datel.com datels new dlv series, dual-output, low-voltage dc/dcs provide any output combination of 3.3v (to 6 amps) and 2.5/1.8/1.5/1.2v (to 7 amps). designed with two control loops for two independently regulated outputs (both using synchronous rectifcation), dlvs are impressively effcient (to 85%) and able to supply their full 13 amps of output current (37w for the 3.3v/2.5v models) up to +60c ambient with no derating (model dependent). housed in standard 2" x 2" x 0.5" plastic packages, dlvs offer a number of functional options (positive or negative polarity on the control pin, addition of second v out trim pin, etc.) that make them pin compatible with, yet more powerful than, virtually all 2" x 2" duals from other leading dc/dc manufacturers. assembled using fully automated, smt-on-pcb techniques, dlvs provide stable no-load operation, excellent line/load regulation (?1%), quick step response (200 sec), and low output ripple/noise (80mvp-p). all devices feature full i/o fault protection including: input overvoltage and undervoltage shutdown, output overvolt- age protection, current limiting, short-circuit protection, and thermal shutdown. all dlv models are qual/halt/emi tested and certifed to the operational/ functional-insulation requirements of ul60950/en60950. 48v in models (75v in max.) carry the ce mark two independently regulated outputs: 3.3v @ 6a; 2.5/1.8/1.5/1.2v @ 7a 13a/37w total output current/power input voltage ranges: 10-18v, 18-36v or 36-75v standard 2" x 2" package/pinout high effciency (to 85%) stable no-load operation independent v out trim pins remote on/off control fully isolated (1500vdc); i/o protected output overvoltage protection thermal shutdown ul60950/en60950 certifed ce marked contact datel. v1 is the higher of the two output voltages. preliminary Cinput pw m cont ro lle r op to isol at io n reference & err or am p switch cont ro l v2 outpu t switch cont ro l outpu t return v1 output v1 trim (option) v2 trim +input syn c (option) on/off cont ro l input unde rv ol ta ge and o ver vo lt ag e com pa ra t ors pw m cont ro lle r op to isol at io n reference & err or am p inno va ti on and ex c el l e n c e ? ?
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6 / , 4 ! ' % $ # $ # # / . 6 % 2 4 % 2 3 dlv series 2 i/o connections pin function p40 function p47 function p48 function p54 1 +input +input +input +input 2 Cinput Cinput Cinput Cinput 3 no pin no pin no pin no pin 4 on/off control on/off control on/off control on/off control 5 +3.3v trim* +3.3v trim* +2.5v trim* +3.3v trim* 6 +3.3v output +3.3v output +2.5v output +3.3v output 7 output return output return output return output return 8 +2.5v output +1.8v output +1.8v output +1.5v output 9 +2.5v trim +1.8v trim +1.8v trim +1.5v trim performance specifcations and ordering guide dlv-2.5/7-1.8/7-d12 2.5 7 75 tbd 1% 1% 12 10-18 tbd tbd 83% c26, p48 1.8 7 75 tbd 1% 1% dlv-2.5/7-1.8/7-d24 2.5 7 75 tbd 1% 1% 24 18-36 tbd tbd 83% c26, p48 1.8 7 75 tbd 1% 1% dlv-2.5/7-1.8/7-d48 2.5 7 75 tbd 1% 1% 48 36-75 tbd tbd 83% c26, p48 1.8 7 75 tbd 1% 1% dlv-3.3/6-1.2/7-d12 3.3 6 75 tbd 1% 1% 12 10-18 tbd tbd 83% c26, p54 1.2 7 75 tbd 1% 1% dlv-3.3/6-1.2/7-d24 3.3 6 75 tbd 1% 1% 24 18-36 tbd tbd 83% c26, p54 1.2 7 75 tbd 1% 1% dlv-3.3/6-1.2/7-d48 3.3 6 75 tbd 1% 1% 48 36-75 tbd tbd 83% c26, p54 1.2 7 75 tbd 1% 1% dlv-3.3/6-1.5/7-d12 3.3 6 75 tbd 1% 1% 12 10-18 tbd tbd 85% c26, p54 1.5 7 75 tbd 1% 1% dlv-3.3/6-1.5/7-d24 3.3 6 75 tbd 1% 1% 24 18-36 tbd tbd 85% c26, p54 1.5 7 75 tbd 1% 1% dlv-3.3/6-1.5/7-d48 3.3 6 75 tbd 1% 1% 48 36-75 tbd tbd 85% c26, p54 1.5 7 75 tbd 1% 1% dlv-3.3/6-1.8/7-d12 3.3 6 75 tbd 1% 1% 12 10-18 tbd tbd 83% c26, p47 1.8 7 75 tbd 1% 1% dlv-3.3/6-1.8/7-d24 3.3 6 75 tbd 1% 1% 24 18-36 tbd tbd 83% c26, p47 1.8 7 75 tbd 1% 1% dlv-3.3/6-1.8/7-d48 3.3 6 75 tbd 1% 1% 48 36-75 tbd tbd 83% c26, p47 1.8 7 75 tbd 1% 1% dlv-3.3/6-2.5/7-d12 3.3 6 75 tbd 1% 1% 12 10-18 tbd tbd 85% c26, p40 2.5 7 75 tbd 1% 1% dlv-3.3/6-2.5/7-d24 3.3 6 75 tbd 1% 1% 24 18-36 tbd tbd 85% c26, p40 2.5 7 75 tbd 1% 1% dlv-3.3/6-2.5/7-d48 3.3 6 75 tbd 1% 1% 48 36-75 tbd tbd 85% c26, p40 2.5 7 75 tbd 1% 1% typical at t a = +25c under nominal line voltage and "balanced," full-power conditions: 3.3v @ 4.5a/2.5v @ 6a; 3.3v @ 5.2a/1.8v @ 7a; 3.3v @ 5.2a/1.8v @ 7a; 2.5v @ 7a/1.8v @ 7a. any combination of rated i out current, not to exceed 35 watts of output power. (see derating graphs.) output input r/n (mvp-p) * optional pins ripple/noise (r/n) measured over a 20mhz bandwidth. all models are specicfed with tbd ceramic capacitors. tested from no load to 100% load (other output at no load). nominal line voltage, no load/balanced full-power condition. m e c h a n i c a l s p e c i f i c a t i o n s v 1 nominal output voltage 3.3 dlv 6 - / d48 - input voltage range: d12 = 10-18 volts (12v nominal) d24 = 18-36 volts (24v nominal) d48 = 36-75 volts (48v nominal) i 1 maximum output current dual low voltage/ mixed-voltage series 2.5 7 / - t v 2 nominal output voltage i 2 maximum output current add t and n suffxes as desired n see page 5 for part number structure and ordering details. preliminary bo tt om view 9 8 5 6 7 1 2 4 2.00 (50.08) 1.400 (35.56) 1.200 (30.48) 3 eq . sp . @ 0.400 (10.16) 1.800 (45.72) 0.10 (2.54) 0.10 (2.54) 0.40 (10.16) plastic case 0.040 ?0.001 dia. (1.016 ?0.025) 0.20 mi n (5.08) 2.00 (50.08) 0.48 (12.19) st andof f 0.020 (0.51) dimensions are in inches (mm) 0.200 (5.08) 0.400 (10.16)
dlv models f ? f w d ? r t t d s ? x ? e v t r ? ? ? ? ? t ? v ? ? ? performance/functional specifcations typical @ t a = +25c under nominal line voltage, balanced "full-load" conditions, unless noted. input input voltage range: d12 models 10-18 volts (12v nominal) d24 models 18-36 volts (24v nominal) d48 models 36-75 volts (48v nominal) overvoltage shutdown: d12 models 19-23 volts (21v nominal) d24 models 37-42 volts (40v nominal) d48 models 77-81 volts (79v nominal) start-up threshold: d12 models 9-10 volts (9.3v nominal) d24 models 16.5-18 volts (17v nominal) d48 models 34.5-36 volts (35v nominal) undervoltage shutdown: d12 models 8.5-9.6 volts (9.3v nominal) d24 models 16-17 volts (16.5v nominal) d48 models 33-35 volts (34v nominal) input current: normal operating conditions see ordering guide standby mode: off, ov, uv, thermal shutdown 10ma typical input refected ripple current: source impedance d12 models tbd d24 models tbd d48 models tbd internal input filter type pi (0.039 f - 2.2h - tbd) reverse-polarity protection: d12 models tbd minute duration, 6a maximum d24 models tbd minute duration, 4a maximum d48 models tbd minute duration, 2a maximum on/off control (pin 4): d12, d24, d48 models on = open or tbd to +v in , i in = tbda @ tbdv off = 0-0.8v, i in = tbd @ 0v d12n, d24n, d48n models on = 0-0.8v, i in = tbd @ 0v off = open or tbd to +5.5v i in = tbda @ tbdv output v out accuracy 2.5v/1.8v models 1.5% / 2% maximum 3.3v/1.5v and 3.3v/1.8vmodels 1% / 2% maximum 3.3v/2.5v models 1% / 1.5% maximum minimum loading per specifcation no load ripple/noise (20mhz bw) see ordering guide line/load regulation see ordering guide effciency see ordering guide/effciency curves trim range 5% each output isolation voltage: input-to-output 1500vdc isolation capacitance 470pf isolation resistance 100m ? current limit inception: 2.5/1.8v models 2.5v @ 98%v out , 1.8v @ tbda tbd amps 1.8v @ 98%v out , 2.5v @ tbda tbd amps 3.3/1.5v models 3.3v @ 98.5%v out , 1.5v @ tbda tbd amps 1.5v @ 98%v out , 3.3v @ tbda tbd amps output (continued) current limit inception: 3.3/1.8v models 3.3v @ 98.5%v out , 1.8v @ tbda tbd amps 1.8v @ 98%v out , 3.3v @ tbda tbd amps 98.5%v out 3.3v/2.5v models 3.3v @ 98.5%v out, , 2.5v @ tbda tbd amps 2.5v @ 98%v out , 3.3v @ tbda tbd amps short circuit current : 3.3v outputs tbd amps average, continuous 2.5v outputs tbd amps average, continuous 1.8v outputs tbd amps average, continuous 1.5v outputs tbd amps average, continuous overvoltage protection: comparator, magnetic feedback 2.5/1.8v models tbd/tbd 3.3/1.5v models tbd/tbd 3.3/1.8v models tbd/tbd 3.3/2.5v models tbd/tbd maximum capacitive loading 2.5/1.8v models tbd/tbd f 3.3/1.5v models tbd/tbd f 3.3/1.8v models tbd/tbd f 3.3/2.5v models tbd/tbd f temperature coeffcient 0.02% per c dynamic characteristics dynamic load response: 2.5/1.8v models 2.5v (50-100% step to 1.5%v out ) tbd sec maximum 1.8v (50-100% step to 2%v out ) tbd sec maximum 3.3/1.5v models 3.3v (50-100% step to 1%v out ) tbd sec maximum 1.8v (50-100% step to 2%v out ) tbd sec maximum 3.3/1.8v models 3.3v (50-100% step to 1%v out ) tbd sec maximum 1.8v (50-100% step to 2%v out ) tbd sec maximum 3.3v/2.5v models 3.3v (50-100% step to 1%v out ) tbd sec maximum 2.5v (50-100% step to 1.5%v out ) tbd sec maximum start-up time: v in to v out tbd on/off to v out tbd switching frequency 225khz (tbd khz) environmental mtbf d12 models tbd hours d24 models tbd hours d48 models tbd hours operating temperature (ambient): without derating: 2.5/1.8v models tbd 3.3/1.8v models tbd 3.3v/2.5v models tbd with derating to +100c (see derating curves) case temperature: maximum operational +100c for thermal shutdown tbd minimum, tbd maximum storage temperature C40 to +120c 3
1 3 a / 3 7 w , d u a l o u t p u t , m i x e d - v o l t a g e d c / d c c o n v e r t e r s dlv series t~??*?b *\&|?*{|? 2" x 2" x 0.5" (50.8 x 50.8 x 12.7mm) case material diallyl phthalate, ul94v-0 rated pin material brass, solder coated weight: tbd primary to secondary insulation level operational absolute maximum ratings input voltage: continuous: d12 models 23 volts d2a models 42 volts d48 models 81 volts transient (100msec): d12 models 25 volts d24 models 50 volts d48 models 100 volts input reverse-polarity protection input current must be limited. tbd minute duration. fusing recommended. d12a models 6 amps d24a models 4 amps d48a models 2 amps output current current limited. devices can withstand an indefnite output short circuit. on/off control (pin 4) max. voltages referenced to Cinput (pin 2) no suffx +v in "n" suffx +8 volts sync control (pin 3) max. voltages "s" suffx +5.7 volts storage temperature C40 to +120c lead temperature (soldering, 10 sec.) +300c these are stress ratings. exposure of devices to any of these conditions may adversely affect long-term reliability. proper operation under conditions other than those listed in the performance/functional specifcations table is not implied, nor recommended. 4 figure 2. trim connections using a trim pot figure 3. trim connections to decrease output voltages using fixed resistors all models are specifed with external tbd ceramic output capacitors. see technical notes/graphs for details. devices may be order with opposite polarity. see part number suffxes and technical notes for details. applying a voltage to on/off control (pin 4) when no input power is applied to the converter may cause permanent damage. output noise may be further reduced with the installation of additional external output capacitors. see technical notes. on/off control is designed to be driven with open collector or by appropriate voltage levels. voltages must be referenced to the Cinput (pin 2). demonstrated mtbf available on request. trim function for the higher of two voltages available with "t" suffx. see part number suffxes and technical notes for details. t e c h n i c a l n o t e s trimming output voltages these dlv converters have a trim capability (pins 9 & 5) that allow users to independently adjust the output voltages 5%. (note: pin 5 is an option, see ordering information.) adjustments to the output voltages can be accom- plished via a trim pot, figure 2, or a single fxed resistor as shown in figures 3 and 4. a single fxed resistor can increase or decrease the output voltage depending on its connection. fixed resistors should have absolute tcr's less than 100ppm/c to minimize sensitivity to changes in temperature. a single resistor connected from the trim pin 9 to +output (pin 8), see figure 3, will decrease the lower output voltage. a resistor connected from trim pin 9 to output return (pin 7) will increase the lower output voltage. see figure 4. similarly, the higher output voltage can be adjusted using a single resistor connected from the trim (pin 5) to +output (pin 6) or to output return (pin 7). see figures 3 and 4. on/off control the primary-side, remote on/off control function (pin 4) can be specifed to operate with either positive or negative polarity. positive polarity devices (no suffx) are enabled when pin 4 is left open or pulled high (+tbdv to +tbdv with respect to Cinput). positive polarity devices are disabled when pin 4 is pulled low (0-0.8v with respect to Cinput). negative polarity devices are off when pin 4 is high/open and on when pin 2 is pulled low. for applications where power sequencing is critical, the dlv series can be confgured such that the on/off control pin will enable/disable only the higher of the two output voltages. contact datel for more information. C 25. 5 do wn r t (k ? ) = 3.3 C v o 3.48( v o C 1.577) l n l n C 17. 4 do wn r t (k ? ) = 2.5 C v o 2.41( v o C 1.18) l n l n 2.5 v olt t rim do wn C 14.17 do wn r t (k ? ) = 1.8 C v o 1.73( v o C 0.86) l n l n 1.8 v olt t rim do wn 3.3 v olt t rim do wn +3.3v lo ad Cinput on/off contr ol +input +3.3v output output return +2.5v output +2.5v tri m 7 8 1 4 9 5 6 3 2 +2.5v lo ad 20k ? 5-22 turns 20k ? 5-22 turns +3.3v trim * sync * * optional pi n +3.3v lo ad Cinput on/off contr ol +input +3.3v output output return +2.5v output +2.5v tri m 7 8 1 4 9 5 6 3 2 +2.5v lo ad r trim do wn r trim do wn +3.3v trim * sync * * optional pi n
dlv models f ? f w d ? r t t d s ? x ? e v t r ? ? ? ? ? t ? v ? ? ? ?*^?]&g]*\?{||&?|*{|?{?|?]&?&t?|}?|v{b|^&??*|^?*?&&?*?|{]? p a r t n u m b e r s t r u c t u r e v 1 nominal output voltage 3.3 dlv 6 - / d48 - input voltage range: d12 = 10-18 volts (12v nominal) d24 = 18-36 volts (24v nominal) d48 = 36-75 volts (48v nominal) i 1 maximum output current dual low voltage/ mixed-voltage series 2.5 7 / - t v 2 nominal output voltage i 2 maximum output current add t and n suffxes as desired n part number suffxes standard dlv dc/dcs provide a trim function (pin 9) for the lower of the two output voltages. a trim pin (pin 5) for the higher voltage can be added by indicating a "t" suffx. an "n" suffx indicates that the on/off control function incorporates negative polarity logic. no suffx pins 5 not installed, positive polarity on/off control t suffx pin 5 added for higher voltage trim option n suffx negative polarity on/off control note: resistor values are in k ? . accuracy of adjustment is subject to tolerances of resistors and fac- tory-adjusted output accuracy. v o = desired output voltage. 5 t y p i c a l p e r f o r m a n c e c u r v e s +3.3v lo ad +3.3v trim * Cinput sync * on/off contr ol +input * optional pi n +3.3v output output return +2.5v output +2.5v tri m 7 8 1 4 9 5 6 3 2 +2.5v lo ad r trim up r trim up C 25. 5 up r t (k ? ) = v o C 3. 3 5.88 l n l n C 17. 4 up r t (k ? ) = v o C 2. 5 2.84 l n l n 2.5 v olt t rim up C 14.17 up r t (k ? ) = v o C 1. 8 1.49 l n l n 1.8 v olt t rim up 3.3 v olt t rim up 90 86 82 78 74 70 66 62 dl v- 3.3/6-2.5/7-d48tn efficienc y vs. line and loa d 0.60 1.68 2.76 3.84 4.92 6 load current (amps) efficiency ( % ) v in = 36v v in = 48v v in = 75v 89 88 87 86 85 84 83 82 81 80 dl v- 3.3/6-2.5/7-d48tn efficienc y vs. load and v in 36 39 42 45 48 51 54 57 60 63 66 69 72 75 v in (v olts ) efficiency ( % ) i o = 4a/4 a i o = 5a/5 a i o = 6a/6 a i o = 7a/6 a
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6 / , 4 ! ' % $ # $ # # / . 6 % 2 4 % 2 3 dlv series datel 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 herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. specifcations are subject to change without notice. the datel logo is a registered datel, inc. trademark. datel (uk) ltd. tadley, england tel: (01256)-880444 datel s.a.r.l. montigny le bretonneux, france tel: 01-34-60-01-01 datel gmbh mnchen, germany tel: 89-544334-0 datel kk tokyo, japan tel: 3-3779-1031, osaka tel: 6-6354-2025 datel, inc. 11 cabot boulevard, mansfeld, ma 02048-1151 tel: (508) 339-3000 (800) 233-2765 fax: (508) 339-6356 internet: www.datel.com email: sales@datel.com iso 9001 registered ds-0490 11/01 6 t e m p e r a t u r e d e r a t i n g output po wer (watts) ambient te mperature ( c) 40 35 30 25 20 15 10 5 0 C40 C10 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 100 dl v- 3.3/6-2/5/7-d48tn output po wer vs. ambient te mperatur e (v in nominal, natural con v ection air fl ow .) inno va ti on and ex c el l e n c e ? ?
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