the smt20c series is a new high density open frame non-isolated converter for space-sensitive applications. each model has a wide input range (4.5 vdc to 5.5 vdc or 10.2 vdc to 13.8 vdc) and offers a wide 0.9 vdc to 3.3/5 v output voltage range with a 20 a load. an external resistor adjusts the output voltage from its pre-set value of 0.9 v to any value up to the maximum allowed value for that model. typical efficiencies are 87% for the 5 v input version and 91% for the 12 v input version at full load conditions. the smt20c series offers remote on/off and overcurrent protection as standard. with full international safety approval including en60950 and ul/cul60950, the smt20c reduces compliance costs and time to market embedded power for business-critical continuity smt20c series 5 vin and 12 vin single output special features ? 20 a current rating ? input voltage range: 4.5 vdc - 5.5 vdc or 10.2 vdc - 13.8 vdc ? output voltage range: 0.9 vdc - 3.3/5.0 vdc ? industry leading value ? cost optimized design ? excellent transient response ? output voltage adjustability ? pathway for future upgrades ? supports silicon voltage migration ? resulting in reduced design-in and qualification time ? designed in reliability: mtbf of >7 million hours per telcordia sr-332 ? available rohs compliant ? 2 year warranty total power: 66w input voltage: 4.5-5.5 vdc # of outputs: single safety ul/cul can/csa 22.2 no. 60950 ul 60950 file no. e139421 tv product service (en60950:2000) certificate no. b 04 08 19870 228 cb report and certificate to us/6415c/ul rev.06.25.07 smt20c 1 of 4
rev.06.25.07 smt20c 2 of 4 embedded power for business-critical continuity all specifications are typical at nominal input vin=12v, full load at 25 c unless otherwise stated. specifications output specifications voltage adjustability 5 v input models 0.9-3.3 vdc (see note 5) 12 v input models 0.9-5.0 vdc output setpoint accuracy with 1.0% trim resistors 2.5% line regulation low line to high line 0.2% max. load regulation 1.3% max. min/max load 0 a/20 a overshoot 5 v input models 3.0% max. (at turn on) 12 v input models 1.0% max. ripple and noise (see note 1) see table on page 2 5 hz to 20 mhz transient response 100 mv max. deviation (see note 2) 200 s recovery to within regulation band input specifications input voltage range 5 v input model 4.5-5.5 vdc 12 v input model 10.2-13.8 vdc input current minimum load 65 ma remote off 20 ma input current (max.) 5 v input model 15 a @ lo max. (see note 3) 12 v input model 11 a @ lo max. input reflected ripple (see note 4) 200 ma (pk-pk) remote on/off logic compatibility positive logic on >2.4 vdc off <0.8 vdc start-up time power up <20 ms (see note 8) remote on/off <20 ms input specifications (contd.) turn on threshold 5 vin 4.5 vdc typ. 12 vin 9.3 vdc typ. turn off threshold 5 vin 4.3 vdc typ. 12 vin 7.8 vdc typ. general specifications efficiency see table on page 2 switching frequency fixed 275 khz typ. approvals and (see note 7) tv product services standards iec60950, ul/cul60950 material flammability ul94v-0 weight 14.2 g (0.5 oz) coplanarity 150 m mtbf telcordia sr-332 7,963,574 hours environmental specifications thermal performance operating ambient, 0 c to +80 c (see note 9) temperature non-operating -40 c to +125 c protection short-circuit protection hiccup, non-latching recommended system capacitance input capacitance (see note 10) 270 f/20 mw esr max. output capacitance (see note 10) 680 f/10 mw esr max.
rev.06.25.07 smt20c 3 of 4 embedded power for business-critical continuity all specifications are typical at nominal input vin = 12 v, full load at 25 c unless otherwise stated. specifications smt20c-12sadjj part number system with options number of outputs sadj = single adjustable output product family smt = surface mount performance c = cost optimized input voltage 05 = 4.5 vdc to 5.5 vdc 12 = 10.2 vdc to 13.8 vdc the ultra-wide output voltage trim range offers major advantages to users who select the smt20c series. it is no longer necessary to purchase a variety of modules in order to cover different output voltages. the output voltage can be trimmed in a range of 0.9 vdc to 5.0 vdc. when the smt20c series converter leaves the factory the output has been adjusted to the default voltage of 0.9 v. output voltage adjustment of the smt20c series packaging options (12) j = pb-free (rohs 6/6 compliant) rated output current 20 = 20 a notes 1 measured as per recommended set-up. 2 x cin = 270 f (20 mw esr max, cout = 680 f (10 mw esr max). 2 di/dt = 10 a/s, vin = nom, tc = 25 c, load change = 0.50 lo max. to 0.75 lo max. and 0.75 lo max. to 0.50 lo max. at 12 v, 0.9 vout, the max voltage deviation is 200 mv. 3 external input fusing is recommended. 4 measured with external filter. see application note 169 for details. 5 uses external resistor from trim pin to output ground. min value = 485 w for 5 v model, 280 w for 12 v model. see application note 169 for details. 6 signal line assumed <3 m in length. 7 this product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. 8 power-up is the time from application of dc input to power good enabled. remote on/off is from on/off asserted high to power good enabled. 9 see application note 169 for operation above 50 c. 10 see application note 169 for ripple current requirements. 11 these models have a wide trim output. 5 vin has an output of 0.9vdc to 3.3 vdc and 12 vin has an output of 0.9 vdc to 5 vdc. an external resistor adjusts the output voltage. 12 tse rohs 5/6 (non pb-free) compliant versions may be available on special request, please contact your local sales representative for details. 13 notice: some models do not support all options. please contact your local artesyn representative or use the on-line model number search tool at http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. ripple and noise specification output model voltage pk - pk rms 5 v input models 0.9 vdc to 2.5 vdc 30 mv 15 mv 3.3 vdc 40 mv 15 mv 12 v input models 0.9 vdc to 2.5 vdc 50 mv 25 mv 3.3 vdc to 5 vdc 50 mv 25 mv output input ovp output output output maximum regulation model power voltage voltage (11) current current load line load number (12,13) (max.) (min.) (max.) (typ.) 66 w 4.5-5.5 vdc n/a 0.9-3.3 v 0 a 20 a 87% 0.2% 1.3% SMT20C-05SADJJ 100 w 10.2-13.8 vdc n/a 0.9-5.0 v 0 a 20 a 91% 0.2% 1.3% smt20c-12sadjj
embedded power for business-critical continuity rev.06.25.07 smt20c 4 of 4 emerson network power and the emerson network power logo are trademarks and service marks of emerson electric co. ?2007 emerson electric co. emerson network power. the global leader in enabling business-critical continuity. emersonnetworkpower. com ac power connectivity dc power embedded power inbound power integrated cabinet solutions outside plant precision cooling site monitoring and services americas 5810 van allen way carlsbad, ca 92008 usa telephone: +1 760 930 4600 facsimile: +1 760 930 0698 europe (uk) waterfront business park merry hill, dudley west midlands, dy5 1lx united kingdom telephone: +44 (0) 1384 842 211 facsimile: +44 (0) 1384 843 355 asia (hk) 16th - 17th floors, lu plaza 2 wing yip street, kwun tong kowloon, hong kong telephone: +852 2176 3333 facsimile: +852 2176 3888 for global contact, visit: www.powerconversion.com technicalsupport@powerconversion.com while every precaution has been taken to ensure accuracy and completeness in this literature, emerson network power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. all dimensions in inches (mm) all tolerance 0.010in ( 0.25mm) unless otherwise stated 0.062 (1.57) ref 8 x 0.105 (2.67) 0.290 (7.37 max) id label location 1.10 (27.9) 1.14 (29.0) 0.48 max. (12.2) 0.13 (3.3) 1.20 (30.5) 0.011 (0.27) typ 0.901 (22.88) 1.010 (25.65) 3x pin 7 pin 8 pin 1 pin 6 0.084 (2.14) 0.956 (24.27) 0.150 (3.81) 0.054 (1.38) 0.940 (23.88) 0.795 (20.19) 0.145 (3.68) seating plane 0.457 (11.61) installed ht. pin connections pin number function 1 vout 2 vout 3 power good 4gnd 5gnd 6vin 7trim 8 remote on/off
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