View UQQ-3325-Q12P-C_7460671.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 1 of 18 features ? ? standard quarter-brick package/pinout in through-hole version ? ? low cost; low pro? le, 0.43" (10.92mm) ? ? 9-36v or 18-75v wide range inputs ? ? output current: 4 to 25 amps ? ? output voltages: 3.3, 5, 12, 15 or 24v ? ? interleaved synchronous-recti? er topology ? ultra high ef? ciency ? ? outstanding thermal performance ? ? on/off control, trim & sense functions ? ? fully isolated, up to 2250vdc (48 v in ) ? ? output overvoltage protection ? ? fully i/o protected; thermal shutdown ? ? certi? ed to ul/en/iec60950-1, 2nd edition safety approvals ? ? rohs hazardous substance compliant from an 9-36v or 18-75v input, uqqs deliver outputs of 3.3v, 5v,12v,15v, or 24v. they employ an interleaved, synchronous-recti? er topology that exploits 100% of their duty cycle. they simultane- ously achieve ultra-high ef? ciency, tight line/load regulation, low noise, and quick step response. a state of the art, single-board, open-frame design with reduced component count, high ef? ciency, low-on-resistance fets, and planar magnetics embedded in heavy-copper pc boards all contribute to impressive thermal derating. the uqqs feature set includes high isolation, input pi ? lters, input undervoltage shutdown, output overvoltage protection, current limiting, short-circuit protection and thermal shutdown. the standard footprint carries on/off control (positive or negative polarity), output trim (+10/C20%) and output sense functions. all uqq quarter-bricks are designed with full magnetic and optical isolation up to 2250 volts dc (basic insulation). for applications requiring wide range input, improved electrical and thermal perfomance consider murata power solutions new uqq series quarter-brick dc-dc converters. they measure just 1.45 x 2.22 x 0.43 inches (36.8 x 56.4 x 10.92mm) and ? t the industry- standard footprint. product overview typical unit 37)4#( #/.42/, /04/ )3/,!4)/. )3/,!4)/. "!22)%2 07- #/.42/,,%2 2%&%2%.#% %22/2!-0 )nputunderovervoltage currentsenseover temperature#omparators 6 ). 6 /54 n6 /54 n6 ). /./&& #/.42/, 42)- n3%.3% 3%.3% typical topology is shown. figure 1. connection diagram
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 2 of 18 performance specifications summary and ordering guide ? root model ? output input ef? ciency package (case/ pinout) v out (v) i out (a) power (watts) r/n (mvp-p) regulation v in nom. (volts) range (volts) i in , no load (ma) i in , full load (a) typ. max. line load min. typ. uqq-3.3/25-q12p-c 3.3 25 82.5 50 80 0.05% 0.125% 12 9-36 180 7.81 86% 88% c68,p32 uqq-3.3/25-q48n-c 3.3 25 82.5 80 125 0.05% 0.2% 48 18-75 80 2.01 86% 88% c68,p32 uqq-5/17-q12p-c 5 17 85 40 75 0.05% 0.06% 12 9-36 150 7.83 88.5% 90.5% c68,p32 uqq-5/20-q48n-c 5 20 100 100 140 0.05% 0.165% 48 18-75 65 2.47 82.5% 84.5% c68,p32 uqq-12/8-q12p-c 12 8 96 40 75 0.05% 0.05% 12 9-36 180 8.99 87% 89% c68,p32 uqq-12/8-q48n-c 12 8 96 120 160 0.05% 0.1% 48 18-75 70 2.3 85% 87% c68,p32 uqq-15/7-q12p-c 15 7 105 56 100 0.05% 0.1% 12 9-36 250 9.78 88% 89.5% c68,p32 uqq-24/4-q12p-c 24 4 96 125 170 0.05% 0.075% 12 10-36 120 8.99 87.7 89% c68,p32 maximum rated output quarter-brick package unipolar single output nominal output voltage u qq - / q12 - 5 17 n lx input voltage range q12 = 9-36v q48 = 18-75v remote on/off control polarity: add "p" for positive polarity add "n" for negative polarity pin length option blank = std. pin length l1 = 0.110 (2.79mm) * l2 = 0.145 (3.68mm) * c rohs-6 hazardous substance compliant (does not claim eu rohs exemption 7b, lead in solder) - 9 baseplate (optional): blank = no baseplate standard b = baseplate installed, special order baseplate pin 9 (special order): blank = no pin 9, standard 9 = pin 9 installed, connects to baseplate ? typical at ta = +25c under nominal line voltage and full-load conditions. all models are specified with an external 1f multi-layer ceramic and 10f capacitors across their output pins and 100f external input capacitor. ? ripple/noise (r/n) measured over a 20mhz bandwidth. ? devices have no minimum-load requirements and will regulate under no-load conditions. regulation specifications describe the output voltage deviation as the line voltage or load is varied from its nominal/midpoint value to either extreme. (load step = 50%.) ? nominal line voltage, no load/full load condition. ? please refer to the part number structure for additional part numbers and options. ? rohs does not claim eu exemption 7b?lead in solder. some model options may require minimum order quantities. b pin 9 baseplate connection the uqq series may include an optional installed baseplate for extended thermal management. this baseplate is electrically isolated from the rest of the converter. various uqq models are also available with an additional pin 9 on special quantity order which electrically connects to the baseplate. pin 9 is also isolated from the rest of the converter. please refer to the mechanical drawings. pin 9 offers a positive method of controlling the electrical potential of the base- plate, independent of the converter. if you do not include pin 9, the baseplate may also be grounded by the mounting bolts. the baseplate may be ordered by adding a b to the model number tree and pin 9 will be pre-installed by adding a 9. the two options are separate. please refer to the ordering guide. do not order pin 9 without the baseplate. note that pin 9 converters may be on limited forecast, requiring minimum order quantities and scheduled deliveries. please see page 9 for heatsink information. part number structure note: some model number combinations may not be available. please contact murata power solutions. * special quantity order is required; no sample quantities available.
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 3 of 18 uqq-3.3/25-q12 uqq-3.3/25-q48 uqq-5/17-q12 uqq-5/20-q48 uqq-12/8-q12 input input voltage range see ordering guide start-up threshold 9.0 volts (18) 17.50 volts 9.0 volts (18) 17.5 volts 9.0 volts (18) undervoltage shutdown 8.0 volts 16.75 volts 8.0 volts 15.75 volts (i out = ?a) 8.0 volts overvoltage shutdown 37.5 volts none 37.5 volts none 37.5 volts re? ected (back) ripple current (2) 25map-p 15map-p 75map-p 80map-p 75map-p input current full load conditions see ordering guide inrush transient 0.1a 2 sec output short circuit 250ma 100ma 100ma 50ma 250ma no load 150ma 80ma 150ma 65ma 180ma low line (v in = min.) 10.4 amps 5.18 amps 10.44 amps 6.24 amps 12.12 amps standby mode (off, uv, ot shutdown) 30ma 30ma 8ma 30ma 30ma internal input filter type lc pi-type l-c l-c l-c reverse polarity protection external fusing required (15) external fusing required (15) external fusing required (15) external fusing required (15) external fusing required (15) remote on/off control (5) positive logic (p suf? x) off = ground pin to +0.8v max. on = open or +3.5-15v max. negative logic (n suf? x) off = open or +5 to +v in max. on = ground pin to +0.8v max. (16) on/off current 1 ma 1 ma 1 ma 1ma 1 ma output voltage output range see ordering guide voltage output accuracy (50% load) 1% of v nom adjustment range 10% of v nom 10% of v nom C20 to +10% of v nom C20 to +10% of v nom C20 to +10% of v nom temperature coef? cient 0.02% of v out range/c minimum loading no minimum load remote sense compensation +10% ripple/noise (20mhz bandwidth) see ordering guide line/load regulation ef? ciency maximum capacitive loading low esr, resistive load 10,000f 4700f 10,000f 10,000f 4700f isolation voltage input to output 2000 vdc min. 2250 vdc min. 2000 vdc min. 2250 vdc min. 2250 vdc min. input fo baseplate 1500 vdc min. 1500 vdc min. 1500 vdc min. 1500 vdc min. 1500 vdc min. baseplate to output 1500 vdc min. 500 vdc min. 750 vdc min. 1500 vdc min. 750 vdc min. isolation resistance 100m ? 100m ? 100m ? 100m ? 100m ? isolation capacitance 1500 pf 1000 pf 1000 pf 1500pf 1000 pf isolation safety rating basic insulation current limit inception (98% of v out , after warmup) 30 amps 29 amps 20.5 amps 27 amps 9.5 amps short circuit protection method current limiting, hiccup autorestart. remove overload for recovery. short circuit current 5 amps 5 amps 3 amps 0.5 amps 0.5 amps short circuit duration continuous, output shorted to ground (no damage) overvoltage protection via magnetic feedback 4 volts 3.96 volts max. 6 volts 6 volts 14.4 volts functional specifications
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 4 of 18 uqq-12/8-q48 uqq-15/7-q12 uqq-24/4-q12 input input voltage range see ordering guide start-up threshold 17.5 volts 9.0 volts (18) 9.0 volts (18) undervoltage shutdown 16.0 volts 8.0 volts 8.0 volts overvoltage shutdown none 38.5 volts none re? ected (back) ripple current (2) 15map-p 50map-p 50map-p input current full load conditions see ordering guide inrush transient 0.1a 2 sec output short circuit 100ma 250ma 250ma no load 70ma 250ma 120ma low line (v in = min.) 5.93a 12.9 amps 10.73 amps standby mode (off, uv, ot shutdown) 30ma 30ma 5ma internal input filter type pi-type l-c l-c reverse polarity protection external fusing required (15) external fusing required (15) external fusing required (15) remote on/off control (5) positive logic (p suf? x) off = ground pin to +0.8v max. on = open or +3.5-15v max. negative logic (n suf? x) off = open or +5 to +v in max. on = ground pin to +0.8v max. (16) on/off current 1 ma output voltage output range see ordering guide voltage output accuracy (50% load) 1.25% of v nom 1% of v nom 1% of v nom adjustment range C20 to +10% of v nom C20 to +10% of v nom 10% of v nom temperature coef? cient 0.02% of v out range/c minimum loading no minimum loading remote sense compensation +10% of vout max. +10% of vout max. +10% of vout max. ripple/noise (20mhz bandwidth) see ordering guide line/load regulation ef? ciency maximum capacitive loading low esr <0.02 ? max., resistive load 2200f 4700f 1500f max isolation voltage input to output 2250 vdc min. 2000 vdc min. 2000 vdc min. input fo baseplate 1500 vdc min. 1500 vdc min. 1500 vdc min. baseplate to output 500 vdc min. 1500 vdc min. 1500 vdc min. isolation resistance 100m ? 100m ? 100m ? isolation capacitance 1000 pf 1000 pf 1000 pf isolation safety rating basic insulation current limit inception (98% of v out , after warmup) 11.5 amps 9.5 amps 5.75 amps short circuit protection method current limiting, hiccup autorestart. remove overload for recovery short circuit current 0.1 amps 0.5 amps 0.5 amps short circuit duration continuous, output shorted to ground (no damage) overvoltage protection via magnetic feedback 15 volts 18 volts 29 volts absolute maximum ratings input voltage 12v models 48v models continuous 0 to +36v 0 to +75v transient (100msec) +50v +100v on/off control 0v min to +15v max. input reverse polarity protection install external fuse. output overvoltage vout +20% max. output current (7) current-limited. devices can withstand sustained short circuit without damage. storage temperature C55 to +125c lead temperature see soldering guidelines absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-term reliability. proper operation under conditions other than those listed in the performance/ functional speci? cations table is not implied or recommended. functional specifications (continued)
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 5 of 18 uqq-3.3/25-q12 uqq-3.3/25-q48 uqq-5/17-q12 uqq-5/20-q48 uqq-12/8-q12 uqq-12/8-q48 uqq-15/7-q12 uqq-24/4-q12 dynamic characteristics dynamic load response (50-75-50% load step) 50sec to 1% of ? nal value 100sec to 1% of ? nal value 50sec to 1% of ? nal value 95sec to 1% of ? nal value 50sec to 1% of ? nal value 50sec to 2% of ? nal value start-up time vin to vout regulated 10msec 10msec max 10msec 25msec 10msec 20msec 10msec 10msec remote on/off to vout regulated 5msec 5msec max 5msec switching frequency 255 25khz 255 25khz 260 25khz 225-265khz 260 25khz 245 20khz 260 25khz 260 25khz environmental calculated mtbf (4) tbc 3,360,928 tbc operating temperature range see derating curves C40 to +85oc with derating C40 to +57oc with derating C40 to +85oc with derating operating temperature range with baseplate (no derating required) (3)(14) C40 to +105oc C40 to +100oc C40 to +105c C40 to +105oc C40 to +105c C40 to +100c C40 to +105c C40 to +105c storage temperature range C55 to +125oc thermal protection/shutdown +120oc, measured at thermistor t1 relative humidity to +85c/85% non-condensing physical outline dimensions see mechanical speci? cations baseplate material aluminum pin material copper alloy pin diameter 0.04/0.062 inches, 1.016/1.524 mm weight 1 ounce (28 grams) electromagnetic interference (conducted, external ? lter required) designed to meet class b, en55022, cispr22 safety certi? ed to ul/cul 60950-1, csa-c22.2 no.60950-1, iec/en 60950-1, 2nd edition flammability ul 94v-0 speci? cation notes: (1) all models are tested and speci? ed with 300 lfm air? ow, external 1 and 10f paralleled ceramic/ tantalum output capacitors and a 100f external input capacitor. all capacitors are low esr types. these capacitors are necessary to accommodate our test equipment and may not be required in your applications. all models are stable and regulate within spec under no-load conditions. general conditions for speci? cations are +25c, v in = nominal, v out = nominal, full load unless noted. (2) input ripple current is tested and speci? ed over a 5hz to 20mhz bandwidth. input ? ltering is c in = 33f tantalum, c bus = 220f electrolytic, l bus = 12h. (3) note that maximum power derating curves indicate an average current at nominal input voltage. at higher temperatures and/or lower air? ow, the dc-dc converter will tolerate brief full current outputs if the total rms current over time does not exceed the derating curve. all derating curves are presented at sea level altitude. be aware of reduced power dissipation with increas- ing altitude. (4) mean time before failure is calculated using the telcordia (belcore) sr-332 method 1, case 3, ground ? xed conditions, t pcboard = +25c, full output load, natural air convection. (5) the on/off control may be driven with external logic or by applying appropriate external voltages which are referenced to input common. the on/off control input should use either an open collector/open drain transistor or logic gate. (6) short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting. (7) the outputs are not intended to sink appreciable reverse current. (8) output noise may be further reduced by adding an external ? lter. see i/o filtering and noise reduction. (9) all models are fully operational and meet published speci? cations, including cold start at C40c. on-board component package temperatures must not exceed +128 c. (10) regulation speci? cations describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme. (11) alternate pin length and/or other output voltages are available under special quantity order. (12) overvoltage shutdown on 48v input models can be eliminated under special quantity order. ov shutdown can be deleted in order to comply with certain telecom reliability requirements. these requirements attempt continued operation despite signi? cant input overvoltage. (13) do not exceed maximum power speci? cations when adjusting the output trim. (14) note that the converter may operate up to +105c with the baseplate installed (+100c for the uqq-3.3/25-q48). however, thermal self-protection occurs near +120c therefore, +105c is recommended to avoid thermal shutdown. (15) if reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external input fuse in series with the +v in input. use approximately twice the full input current rating with nominal input voltage. (16) for on/off control on negative-polarity uqq-3.3/25-q48n models, the maximum off mode control voltage is +13.5 volts. for the on mode, the range is pin grounded to +1 volt max. (17) always connect the sense pins. if they are not connected to a remote load, connect each sense pin to its respective output at the converter pins. (18) shown at vin = 10v; after module starts up it operates from 9-36vdc. functional specifications (continued)
www.murata-ps.com/support typical performance data uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 6 of 18 64 66 68 70 72 74 76 78 80 82 84 86 88 90 2 4 6 8 10 12 14 16 18 20 22 24 26 uqq-3.3/25-q48p efficiency vs. line voltage and load current @ 25 o c load current (amps) efficiency ( % ) v in = 72v v in = 60v v in = 48v v in = 36v v in = 24v v in = 18v 18 18.5 19 19.5 20 20.5 21 21.5 22 22.5 23 23.5 24 24.5 25 20 25 30 35 40 45 50 55 60 65 70 75 80 85 uqq-3.3/25-q12p maximum current temperature derating (no baseplate, v in = 12v, air flow is transverse) natural convection 300 lfm output current (amps) ambient temperature ( c) 400 lfm 200 lfm 100 lfm 13 14 15 16 17 18 19 20 21 22 23 24 25 26 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 natural convection 300 lfm 400 lfm 200 lfm 100 lfm uqq-3.3/25-q48 maximum current temperature derating at sea level (v in = 48v, with baseplate, transverse air flow) output current (amps) ambient temperature ( c) 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 output current (amps) ambient temperature ( c) uqq-3.3/25-q12pb maximum current temperature derating (with baseplate, v in = 12v, air flow is transverse) 200 lfm 300 lfm 100 lfm natural convection uqq-3.3/25-q12 efficiency vs. line voltage and load current @ 25c load current (amps) efficiency (%) v in = 36v v in = 30v v in = 24v 90 88 86 84 82 80 78 76 74 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 v in = 18v v in = 12v
www.murata-ps.com/support typical performance data uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 7 of 18 511 10 %fficiencyvs,ine6oltageand,oad#urrent ?# ,oad#urrent!mps %fficiency 6 ). 6 6 ). 6 6 ). 6 6 ). 6 6 ). 6 65 70 75 80 85 90 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 v in = 18v v in = 24v v in = 36v v in = 48v v in = 60v v in = 75v uqq-5/20-q48p efficiency vs. line voltage and load current @ 25c load current (amps) efficiency ( % ) 511 10 0ower$issipationvs,oad#urrent ?# ,oad#urrent !m p s 0ower$issipation7atts 6 ). 6 6 ). 6 6 ). 6 6 ). 6 6 ). 6 output current (amps) ambient temperature ( c) ?40 25 30 35 40 45 50 55 60 65 70 75 80 85 17 16 15 14 13 12 11 400 lfm 200 lfm 300 lfm 100 lfm natural convection uqq-5/17-q12p maximum current temperature derating with baseplate, v in = 12v (transverse air flow at sea level) 11 12 13 14 15 16 17 18 19 20 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 400 lfm 200 lfm 300 lfm 100 lfm natural convection uqq-5/20-q48 maximum current temperature derating at sea level (v in = 48v, with baseplate, transverse airflow) output current (amps) ambient temperature ( c) output current (amps) ambient temperature ( c) ?40 25 30 35 40 45 50 55 60 65 70 75 80 85 17 16 15 14 13 12 11 400 lfm 200 lfm 300 lfm 100 lfm natural convection uqq-5/17-q12p maximum current temperature derating no baseplate, vin = 12v (transverse air flow at sea level)
www.murata-ps.com/support typical performance data uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 8 of 18 511 1 0ower$issipationvs,oad#urrent ?# ,oad#urrent!mps 0ower$issipation7atts 6 ). 6 6 ). 6 6 ). 6 6 ). 6 6 ). 6 output current (amps) ambient temperature ( c) ?40 25 30 35 40 45 50 55 60 65 70 75 80 85 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 400 lfm 200 lfm 300 lfm 100 lfm natural convection uqq-12/8-q12p maximum current temperature derating with baseplate, v in = 12v (transverse air flow at sea level) 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 uqq-12/8-q12p maximum current temperature derating (no baseplate, v in = 12v, air flow is transverse) output current (amps) ambient temperature ( c) natural convection 100 lfm 200 lfm 300 lfm 400 lfm 511 10 %fficiencyvs,ine6oltageand,oad#urrent ?# ,oad#urrent!mps %fficiency 6 ). 6 6 ). 6 6 ). 6 6 ). 6 6 ). 6
www.murata-ps.com/support typical performance data uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 9 of 18 74 76 78 80 82 84 86 88 90 92 uqq-12/8-q48p efficiency vs. line voltage and load current @ 25c load current (amps) efficiency ( % ) 1 2 3 4 5 6 7 8 v in = 75v v in = 48v v in = 36v v in = 18v 4 4.5 5 5.5 6 6.5 7 7.5 8 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 output current (amps) ambient temperature ( c) uqq-12/8-q48p maximum current temperature derating (with baseplate, v in = 48v transverse air flow at sea level) natural convection 100 lfm 200 lfm 300 lfm 400 lfm 4 4.5 5 5.5 6 6.5 7 7.5 8 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 output current (amps) ambient temperature ( c) uqq-12/8-q48p maximum current temperature derating (with baseplate, v in = 24v, transverse air flow at sea level) natural convection 100 lfm 200 lfm 300 lfm 400 lfm
www.murata-ps.com/support typical performance data uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 10 of 18 511 10 0ower$issipationvs,oad#urrent ?# ,oad#urrent!mps 0ower$issipation7atts 6 ). 6 6 ). 6 6 ). 6 6 ). 6 6 ). 6 511 10 %fficiencyvs,ine6oltageand,oad#urrent ?# ,oad#urrent!mps %fficiency 6 ). 6 6 ). 6 6 ). 6 6 ). 6 6 ). 6 output current (amps) ambient temperature ( c) ?40 25 30 35 40 45 50 55 60 65 70 75 80 85 7 6.5 6 5.5 5 4.5 4 3.5 200 lfm 300 lfm 100 lfm natural convection 400 lfm uqq-15/7-q12p maximum current temperature derating with baseplate, v in = 12v (transverse air flow at sea level)
www.murata-ps.com/support typical performance data uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 11 of 18 output current (amps) ambient temperature ( c) 20 25 30 35 40 45 50 55 60 65 70 75 85 80 4 3.8 3.6 3.4 3.2 3 2.8 2.6 2.4 2.2 2 200 lfm 300 lfm 100 lfm natural convection 400 lfm uqq-24/4-q12p maximum current temperature derating no baseplate, v in = 12v (transverse air flow at sea level) output current (amps) ambient temperature ( c) 20 25 30 35 40 45 50 55 60 65 70 75 85 80 4 3.8 3.6 3.4 3.2 3 2.8 2.6 2.4 2.2 2 200 lfm 300 lfm 100 lfm natural convection 400 lfm uqq-24/4-q12p maximum current temperature derating with baseplate, v in = 12v (transverse air flow at sea level) 93 92 91 90 89 88 87 86 uqq-24/4-q12p efficiency vs. line voltage and load current @ 25c load current (amps) efficiency ( % ) 1 2 3 4 v in = 36v v in = 30v v in = 24v v in = 12v v in = 10v uqq-24/4-q12p power dissipation vs. load current @ 25c 1 load current (amps) power dissipation (watts) 4 2 3 2 3 4 5 6 7 8 9 10 11 12 13 14 v in = 36v v in = 30v v in = 24v v in = 12v v in = 10v
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 12 of 18 mechanical specifications * the remote on/off can be provided with either positive ("p" suf? x) or negative ("n" suf? x) polarity. important! always connect the sense pins; see application notes. standard pin length is shown. please refer to the part number structure for alternate pin lengths. .43 10.9 ref 25.4 1.00 7.62 .300 7.62 .300 3.81 .150 3.81 .150 .725 ref 18.42 2.000 50.80 .93 ref 23.6 .515 ref 13.08 end view without baseplate c l c l c l 8 7 6 5 4 1 2 9 connects to baseplate and is electrically isolated from converter 3 optional pin #9 bottom view .071.002 [1.80] vented shoulder on each .040 pin optional baseplate 'b' option side view at pins 1-3, 5-7, (9) 1.020.05 .040.002 2x .062.002 at pins 4 & 8 1.570.05 end view with baseplate 12.7 .50 4.76 .187 .010 min bottom clearance 0.25 c l c l top view 2.22 56.4 1.860 47.24 1.030 26.16 thru , .10" max penetration (4 pls) 4x m3x0.5 1.45 36.8 dosa-compatible input/output connections pin function p32 1 +vin 2 remote on/off* 3 Cvin 4 Cvout 5 Csense 6 trim 7 +sense 8 +vout 9 baseplate (optional) third angle projection dimensions are in inches (mm shown for ref. only). components are shown for reference only. tolerances (unless otherwise speci?ed): .xx 0.02 (0.5) .xxx 0.010 (0.25) angles 2?
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 13 of 18 removal of soldered uqqs from printed circuit boards should removal of the uqq from its soldered connection be needed, thor- oughly de-solder the pins using solder wicks or de-soldering tools. at no time should any prying or leverage be used to remove boards that have not been properly de-soldered ? rst. input source impedance uqq converters must be driven from a low ac-impedance input source. the dc-dcs performance and stability can be compromised by the use of highly inductive source impedances. the input circuit shown in figure 2 is a practical solution that can be used to minimize the effects of inductance in the input traces. for optimum performance, components should be mounted close to the dc-dc converter. i/o filtering, input ripple current, and output noise all models in the uqq series are tested/speci? ed for input ripple current (also called input re? ected ripple current) and output noise using the circuits and layout shown in figures 2 and 3. external input capacitors (c in in figure 2) serve primarily as energy-storage elements. figure 2. measuring input ripple current c in v in c bus l bus c in = 33f, esr < 700m @ 100khz c bus = 220f, esr < 100m @ 100khz l bus = 12h 1 3 +vin ?vin current probe to oscilloscope + ? technical notes they should be selected for bulk capacitance (at appropriate frequencies), low esr, and high rms-ripple-current ratings. the switching nature of dc-dc converters requires that dc voltage sources have low ac imped- ance as highly inductive source impedance can affect system stability. in figure 2, c bus and l bus simulate a typical dc voltage bus. your speci? c system con? guration may necessitate additional considerations. in critical applications, output ripple/noise (also referred to as periodic and random deviations or pard) can be reduced below speci? ed limits using ? ltering techniques, the simplest of which is the installation of additional external output capacitors. output capacitors function as true ? lter ele- ments and should be selected for bulk capacitance, low esr, and appropri- ate frequency response. all external capacitors should have appropriate voltage ratings and be located as close to the converter as possible. temperature variations for all relevant parameters should be taken into consideration. os-con tm organic semiconductor capacitors (www.sanyo.com) can be especially effective for further reduction of ripple/noise. the most effective combination of external i/o capacitors will be a function of line voltage and source impedance, as well as particular load and layout conditions. figure 3. measuring output ripple/noise (pard) c1 c1 = 1f c2 = 10f tantalum load 2-3 inches (51-76mm) from module c2 r load 7 8 4 5 scope +vout ?vout +sense ?sense soldering guidelines murata power solutions recommends the speci? cations below when installing these converters. these speci? cations vary depending on the solder type. exceeding these speci? cations may cause damage to the product. your production environment may dif- fer; therefore please thoroughly review these guidelines with your process engineers. wave solder operations for through-hole mounted products (thmt) for sn/ag/cu based solders: for sn/pb based solders: maximum preheat temperature 115 c. maximum preheat temperature 105 c. maximum pot temperature 270 c. maximum pot temperature 250 c. maximum solder dwell time 7 seconds maximum solder dwell time 6 seconds
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 14 of 18 start-up threshold and undervoltage shutdown under normal start-up conditions, the uqq series will not begin to regulate properly until the ramping input voltage exceeds the start-up threshold. once operating, devices will turn off when the applied voltage drops below the undervoltage shutdown point. devices will remain off as long as the undervolt- age condition continues. units will automatically re-start when the applied voltage is brought back above the start-up threshold. the hysteresis built into this function avoids an indeterminate on/off condition at a single input voltage. see performance/functional speci? cations table for actual limits. start-up time the v in to v out start-up time is the interval between the point at which a ramp- ing input voltage crosses the start-up threshold voltage and the point at which the fully loaded output voltage enters and remains within its speci? ed accuracy band. actual measured times will vary with input source impedance, external input capacitance, and the slew rate and ? nal value of the input voltage as it appears to the converter. the on/off to v out start-up time assumes that the converter is turned off via the remote on/off control with the nominal input voltage already applied. on/off control the primary-side, remote on/off control function (pin 2) can be speci? ed to operate with either positive or negative polarity. positive-polarity devices ("p" suf? x) are enabled when pin 2 is left open or is pulled high. positive-polarity devices are disabled when pin 2 is pulled low or left open (with respect to Cinput). negative-polarity devices are off when pin 2 is high and on when pin 2 is pulled low or grounded. see figure 4. dynamic control of the remote on/off function is best accomplished with a mechanical relay or an open-collector/open-drain drive circuit (optically iso- lated if appropriate). the drive circuit should be able to sink appropriate current (see performance speci? cations) when activated and withstand appropriate voltage when deactivated. figure 4. driving the remote on/off control pin 2 3 1 +5v ref + vin equivalent circuit for positive and negative logic models control ?vin o n /o f f c o n tr o l common should not be allowed to exceed 0.5v. consider using heavier wire if this drop is excessive. sense is connected at the load and corrects for resistive errors only. be careful where it is connected. any long, distributed wiring and/or signi? cant inductance introduced into the sense control loop can adversely affect overall system stabil- ity. if in doubt, test the application, and observe the dc-dcs output transient response during step loads. there should be no appreciable ringing or oscilla- tion. you may also adjust the output trim slightly to compensate for voltage loss in any external ? lter elements. do not exceed maximum power ratings. current limiting (power limit with current mode control) as power demand increases on the output and enters the speci? ed limit inception range (current in voltage mode and power in current mode) limiting circuitry activates in the dc-dc converter to limit/restrict the maximum current or total power available. in voltage mode, current limit can have a constant or foldback characteristic. in current mode, once the current reaches a certain range the output voltage will start to decrease while the output current con- tinues to increase, thereby maintaining constant power, until a maximum peak current is reached and the converter enters a hiccup (on off cycling) mode of operation until the load is reduced below the threshold level, whereupon it will return to a normal mode of operation. current limit inception is de? ned as the point where the output voltage has decreased by a pre-speci? ed percentage (usually a 2% decrease from nominal). short circuit condition (current mode control) the short circuit condition is an extension of the current limiting condition. when the monitored peak current signal reaches a certain range, the pwm controllers outputs are shut off thereby turning the converter off. this is followed by an extended time out period. this period can vary depending on other conditions such as the input voltage level. following this time out period, the pwm controller will attempt to re-start the converter by initiating a normal start cycle which includes softstart. if the fault condition persists, another hiccup cycle is initiated. this cycle can and will continue inde? nitely until such time as the fault condition is removed, at which time the converter will resume normal operation. operating in the hiccup mode during a fault condition is advantageous in that average input and output power levels are held low preventing excessive internal increases in temperature. thermal shutdown uqq converters are equipped with thermal-shutdown circuitry. if the internal temperature of the dc-dc converter rises above the designed operating temperature (see performance speci? cations), a precision temperature sensor will power down the unit. when the internal temperature decreases below the threshold of the temperature sensor, the unit will self start. output overvoltage protection the output voltage is monitored for an overvoltage condition via magnetic cou- pling to the primary side. if the output voltage rises to a fault condition, which could be damaging to the load circuitry (see performance speci? cations), the sensing circuitry will power down the pwm controller causing the output volt- age to decrease. following a time-out period the pwm will restart, causing the output voltage to ramp to its appropriate value. if the fault condition persists, and the output voltages again climb to excessive levels, the overvoltage circuitry will initiate another shutdown cycle. this on/off cycling is referred to as hiccup mode. sense input note: the sense and v out lines are internally connected through low-value resistors. nevertheless, if sense is not used for remote regulation, the user must connect + sense to + v out and -sense to -v out at the converter pins. sense is intended to correct small output accuracy errors caused by the resistive ohmic drop in output wiring as output current increases. this output drop (the difference between sense and v out when measured at the converter)
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 15 of 18 input reverse-polarity protection if the input-voltage polarity is accidentally reversed, an internal diode will become forward biased and likely draw excessive current from the power source. if the source is not current limited or the circuit appropriately fused, it could cause permanent damage to the converter. input fusing certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. fuses should also be used if the possibility of a sustained, non-current-limited, input-voltage polarity reversal exists. for mps uqq series dc-dc converters, fast-blow fuses are recommended with values no greater than twice the maximum input current. trimming output voltage uqq converters have a trim capability (pin 6) that enables users to adjust the output voltage from +10% to C20% (refer to the trim equations). adjustments to the output voltage can be accomplished with a single ? xed resistor as shown in figures 5 and 6. a single ? xed resistor can increase or decrease the output voltage depending on its connection. resistors should be located close to the converter and have tcrs less than 100ppm/c to minimize sensitivity to changes in temperature. if the trim function is not used, leave the trim pin open. standard uqqs have a "positive trim" where a single resistor connected from the trim pin (pin 6) to the +sense (pin 7) will increase the output voltage. a resistor connected from the trim pin (pin 6) to the Csense (pin 5) will decrease the output voltage. trim adjustments greater than the speci? ed +10%/C20% can have an adverse affect on the converters performance and are not recommended. excessive voltage differences between v out and sense, in conjunction with trim adjust- ment of the output voltage, can cause the overvoltage protection circuitry to activate (see performance speci? cations for overvoltage limits). temperature/power derating is based on maximum output current and voltage at the converters output pins. use of the trim and sense functions can cause output voltages to increase, thereby increasing output power beyond the uqqs speci? ed rating, or cause output voltages to climb into the output overvoltage region. therefore: (v out at pins) x (i out ) ? rated output power the trim pin (pin 6) is a relatively high impedance node that can be susceptible to noise pickup when connected to long conductors in noisy environments. load r trim down +vout +vin ?vin on/off control trim +sense ?vout ?sense load r trim up +vout +vin ?vin on/off control trim +sense ?vout ?sense figure 5. trim connections to increase output voltages using fixed resistors figure 6. trim connections to decrease output voltages using fixed resistors up v o ? 3.3 r t (k 7 ) = ? 10.2 13.3(v o ? 1.226) 3.3 ? v o r t (k 7 ) = ? 10.2 16.31 down up v o ? 5 r t (k 7 ) = ? 10.2 20.4(v o ? 1.226) 5 ? v o r t (k 7 ) = ? 10.2 25.01 down up v o ? 12 r t (k 7 ) = ? 10.2 49.6(v o ? 1.226) 12 ? v o r t (k 7 ) = ? 10.2 60.45 down up v o ? 15 r t (k 7 ) = ? 10.2 62.9(v o ? 1.226) 15 ? v o r t (k 7 ) = ? 10.2 76.56 down uqq-3.3/25-q12, uqq-3.3/25-q48 uqq-5/17-q12, uqq-5/20-q48 uqq-12/8-q12, uqq-12/8-q48 uqq-15/7-q12 up v o ? 24 r t (k 7 ) = ? 10.2 101 (v o ? 1.226) 24 ? v o r t (k 7 ) = ? 10.2 124.2 down uqq-24/4-q12 trim up trim down
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 16 of 18 figure 7. model uqq heatsink assembly diagram uqq series aluminum heatsink please note C the uqq series shares the same heatsink kits as the uvq series. therefore, when ordering these heat sinks, use the model numbers below which end with the uvq suf? x. the uqq series converter baseplate can be attached either to an enclosure wall or a heatsink to remove heat from internal power dissipation. the discussion below concerns only the heatsink alternative. the uqqs are available with a low-pro? le extruded aluminum heatsink kit, models hs-qb25-uvq, hs-qb50-uvq, and hs-qb100-uvq. this kit includes the heatsink, thermal mounting pad, screws and mounting hardware. see the assembly diagram below. do not overtighten the screws in the tapped holes in the converter. this kit adds excellent thermal performance without sacri? cing too much component height. see the mechanical outline drawings for assembled dimensions. if the thermal pad is ? rmly attached, no thermal compound (thermal grease) is required. when assembling these kits onto the converter, include all kit hardware to assure adequate mechanical capture and proper clearances. thread relief is 0.090" (2.3mm). thermal performance the hs-qb25-uvq heatsink has a thermal resistance of 12 degrees celsius per watt of internal heat dissipation with natural convection air? ow (no fans or other mechanical air? ow) at sea level altitude. this thermal resistance assumes that the heatsink is ? rmly attached using the supplied thermal pad and that there is no nearby wall or enclosure surface to inhibit the air? ow. the thermal pad adds a negligible series resistance of approximately 0.5c/watt so that the total assembled resistance is 12.5c/watt. be aware that we need to handle only the internal heat dissipation, not the full power output of the converter. this internal heat dissipation is related to the ef? ciency as follows: power dissipation [pd] = power in C power out [1] power out / power in = ef? ciency [in %] / 100 [2] power dissipation [pd] = power in x (1 Cef? ciency%/100) [3] power dissipation [pd] = power out x (1 / (ef? ciency%/100) - 1) [4] ef? ciency of course varies with input voltage and the total output power. please refer to the performance curves. since many applications do include fans, here is an approximate equation to calculate the net thermal resistance: r ? [at air? ow] = r ? [natural convection] / (1 + (air? ow in lfm) x [air? ow constant]) [5] where, r ? [at air? ow] is the net thermal resistance (in c/w) with the amount of air? ow available and, r ? [natural convection] is the still air total path thermal resistance or in this case 12.5c/watt and, air? ow in lfm is the net air movement ? ow rate immediately at the converter. this equation simpli? es an otherwise complex aerodynamic model but is a useful starting point. the air? ow constant is dependent on the fan and enclo- sure geometry. for example, if 200 lfm of air? ow reduces the effective natural convection thermal resistance by one half, the air? ow constant would be 0.005. there is no practical way to publish a one size ? ts all air? ow constant because of variations in air? ow direction, heatsink orientation, adjacent walls, enclosure geometry, etc. each application must be determined empirically and the equation is primarily a way to help understand the cooling arithmetic. this equation basically says that small amounts of forced air? ow are quite effective removing the heat. but very high air? ows give diminishing returns. conversely, no forced air? ow causes considerable heat buildup. at zero air? ow, cooling occurs only because of natural convection over the heatsink. natural convection is often well below 50 lfm, not much of a breeze. while these equations are useful as a conceptual aid, most users ? nd it very dif? cult to measure actual air? ow rates at the converter. even if you know the velocity speci? cations of the fan, this does not usually relate directly to the enclosure geometry. be sure to use a considerable safety margin doing thermal analysis. if in doubt, measure the actual heat sink temperature with a calibrated thermocouple, rtd or thermistor. safe operation should keep the heat sink below 100c. 0!.(%!$3#2%7 -8-- 0,#3 ,/#+7!3(%2 - 0,#3 &,!47!3(%2 ./ 0,#3 (%!43).+ (%!442!.3&%20!$ 0eeloffwhiteplastic backingmaterialbefore attachingtoheatsink
www.murata-ps.com/support uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 17 of 18 calculating maximum power dissipation to determine the maximum amount of internal power dissipation, ? nd the ambient temperature inside the enclosure and the air? ow (in linear feet per minute C lfm) at the converter. determine the expected heat dissipation using the ef? ciency curves and the converter input voltage. you should also compen- sate for lower atmospheric pressure if your application altitude is considerably above sea level. the general proceedure is to compute the expected temperature rise of the heatsink. if the heatsink exceeds +100c. either increase the air? ow and/or reduce the power output. start with this equation: internal heat dissipation [pd in watts] = (ts C ta)/r ? [at air? ow] [6] where ta is the enclosure ambient air temperature and, where ts is the heatsink temperature and, where r ? [at air? ow] is a speci? c heat transfer thermal resistance (in degrees celsius per watt) for a particular heat sink at a set air? ow rate. we have already estimated r ? [at air? ow] in the equations above. note particularly that ta is the air temperature inside the enclosure at the heatsink, not the outside air temperature. most enclosures have higher internal temperatures, especially if the converter is downwind from other heat-pro ducing circuits. note also that this pd term is only the internal heat dissipated inside the converter and not the total power output of the converter. we can rearrange this equation to give an estimated temperature rise of the heatsink as follows: ts = (pd x r ? [at air? ow]) + ta [7] these model numbers are correct for the uqq series. heat sink example assume an ef? ciency of 92% and power output of 100 watts. using equation [4], pd is about 8.7 watts at an input voltage of 48 volts. using +30c ambient temperature inside the enclosure, we wish to limit the heat sink temperature to +90c maximum baseplate temperature to stay well away from thermal shut- down. the +90c. ? gure also allows some margin in case the ambient climbs above +30c or the input voltage varies, giving us less than 92% ef? ciency. the heat sink and air? ow combination must have the following characteristics: 8.7 w = (90-30) / r ? [air? ow] or, r ? [air? ow] = 60/8.7 = 6.9c/w since the ambient thermal resistance of the heatsink and pad is 12.5c/w, we need additional forced cooling to get us down to 6.9c/w. using a hypothetical air? ow constant of 0.005, we can rearrange equation [5] as follows: (required air? ow, lfm) x (air? ow constant) = r ? [nat.convection] / r ? [at air? ow] C1, or, (required air? ow, lfm) x (air? ow constant) = 12.5/6.9 C1 = 0.81 and, rearranging again, (required air? ow, lfm) = 0.81/0.005 = 162 lfm 162 lfm is the minumum air? ow to keep the heatsink below +90c. increase the air? ow to several hundred lfm to reduce the heatsink temperature further and improve life and reliability. h eatsink kit * model number still air (natural convection) thermal resistance heatsink height (see drawing) hs-qb25-uvq 12c/watt 0.25" (6.35mm) hs-qb50-uvq 10.6c/watt 0.50" (12.7mm) hs-qb100-uvq 8c/watt 1.00" (25.4mm) * kit includes heatsink, thermal pad and mounting hardware. these are non-rohs models. for rohs-6 versions, add -c to the model number (e.g., hs-qb25-uvq-c). 0.10 (2.54) * * uqq series heatsinks are available in 3 heights: 0.25 (6.35), 0.50 (12.70) and 1.00 (25.4) 1.45 (36.83) 2.28 (57.91) material: black anodized aluminum 1.03 (26.16) 1.860 (47.24) 0.140 dia. (3.56) (4 places) dimensions in inches (mm) figure 8. optional heatsink
www.murata-ps.com/support 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 cha nge without notice. ? 2013 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered this product is subject to the following operating requirements and the life and safety critical application sales policy : refer to: http://www.murata-ps.com/requirements/ uqq series wide input range single output dc-dc converters mdc_uqq.d03 page 18 of 18 figure 9. vertical wind tunnel ir video camera ir transparent optical window variable speed fan heating element ambient temperature sensor air?ow collimator precision low-rate anemometer 3 below uut unit under test (uut) vertical wind tunnel murata power solutions employs a computer controlled custom- designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate air? ow and heat dis- sipation analysis of power products. the system includes a precision low ? ow-rate anemometer, variable speed fan, power supply input and load controls, temperature gauges, and adjustable heating ele- ment. the ir camera monitors the thermal performance of the unit under test (uut) under static steady-state conditions. a special optical port is used which is transparent to infrared wavelengths. both through-hole and surface mount converters are soldered down to a 10" x 10" host carrier board for realistic heat absorption and spreading. both longitudinal and transverse air? ow studies are pos- sible by rotation of this carrier board since there are often signi? cant differences in the heat dissipation in the two air? ow directions. the combination of adjustable air? ow, adjustable ambient heat, and adjustable input/output currents and voltages mean that a very wide range of measurement conditions can be studied. the collimator reduces the amount of turbulence adjacent to the uut by minimizing air? ow turbulence. such turbulence in? uences the effective heat transfer characteristics and gives false readings. excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven overheating. both sides of the uut are studied since there are different thermal gradients on each side. the adjustable heating element and fan, built-in temperature gauges, and no-contact ir camera mean that power supplies are tested in real-world conditions.

▲Up To Search▲

Price & Availability of UQQ-3325-Q12P-C

	To Download UQQ-3325-Q12P-C Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .