dc/dc converter for igbt driver qa xx1 series 201 5 . 09.14 - a/0 page 1 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation dc / dc converter for igbt driver patent p rotection rohs features ? high efficiency up to 8 1 % ? ultra compact sip package ? isolation voltage : 3 k vac ? max. capacitive load : 1000uf ? ultra low isolation capacitance ? operating temperature range: -40 to +105 ? no-load operation allowed qa xx1 series are dc-dc converters for igbt drivers. their ultra low isolation capacitance can improve the capability of anti-interference. the built-in common-ground mode of the unique asymmetric voltage output mode reduces the driver loss of igbt driver . t hey feature short-circuit protection and auto-recovery, and can be widely used i n : 1. general inverter 2. ac servo drive system 3. electric welding machine 4. uninterruptible power supply (ups) selection guide part no. input output efficiency (%, min./ typ) @ f ull l oad max. c apacitive l oad ( f) input v oltage(vdc) input c urrent(ma, typ . ) full load/no - load output v oltage (vdc)+vo/-vo output c urrent (ma)+io/-io nominal(range) qa 121 12 (11.4-12.6) 280/40 +15/-8.0 + 12 0/- 120 7 8 /81 1000 qa 151 15 (14. 25 -15. 75 ) 230/35 qa 241 24 ( 22.8 - 25.2 ) 144/30 input s pecifications item operating c onditions min. typ. max. unit input surge voltage qa 121 dc -0.7 -- 14 vdc qa 151 dc -0.7 -- 16 qa 241 dc -0.7 -- 26 input f ilter filter capacitor hot p lug unavailable output s pecifications item operating c onditions min. typ. max. unit output v oltage QA121 +vo vin=12vdc pin6 & pin7 +io= +120ma 14.25 15 15.75 vdc -vo vin=12vdc pin5 & pin6 -io= -120ma -6.4 -8 -9.6 qa151 +vo vin=15vdc pin6 & pin7 +io= +120ma 14.25 15 15.75 -vo vin=15vdc pin5 & pin6 -io= -120ma -6.4 -8 -9.6 qa241 +vo vin=24vdc pin6 & pin7 +io= +120ma 14.25 15 15.75 -vo vin=24vdc pin5 & pin6 -io= -120ma -6.4 -8 -9.6 output voltage accuracy 100 ma load positive output -5 -- +5 % negative output -20 -- +20 10% -100% load see tolerance envelope curve (fig. 2, fig. 3 ) line r egulation input voltage range positive output -5 -- +5 % negative output -20 -- +20 load r egulation 10%-100% load positive output -- 8 15 % negative output -- 10 15
dc/dc converter for igbt driver qa xx1 series 201 5 . 09.14 - a/0 page 2 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation temperature c oefficient full load -- -- 0.03 %/ ripple & n oise* 20mhz bandwidth -- 100 200 mvp-p output s hort c ircuit p rotection -- -- 1 s note: * ripple and noise are measured by parallel cable method, please see dc-dc converter application notes for specific operation. general s pecifications item operating c onditions min. typ. max. unit isolation voltage input-output, with the test time of 1 minute and the leak current lower than 1ma 3000 -- -- vac insulation resistance input-output, isolation voltage 500vdc 1000 -- -- m isolation capacitance input-output, 100khz/0.1v -- 6 10 pf operating temperature derating when operating temperature up to 85 , (see fig. 2) -40 -- 105 storage temperature -55 -- 125 pin welding resistance temperature welding spot is 1.5mm away from the casing, 10 seconds -- -- 300 casing temperature rise ta=25 , nominal input, full load output -- -- 40 storage humidity non-condensing 5 -- 95 %rh mtbf mil-hdfk-217f@25 3500 -- -- k hours physical s pecifications casing material black flame-retardant and heat-resistant plastic dimensions 19.50*9.80*12.50mm weight 4.3g (typ.) cooling method free air convection e mc s pecifications ems e sd iec/en61000-4-2 contact 8kv perf. criteria b eft iec/en61000-4-4 2kv perf. criteria b surge iec/en61000-4-5 2kv (input to outout) perf. criteria b product c haracteristic c urve fig. 1
dc/dc converter for igbt driver qa xx1 series 201 5 . 09.14 - a/0 page 3 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation fig. 2 fig. 3 note:take QA121 as an example , other models can be corresponding reference design r eference 1. typical application control signa l igbt drive r 7 6 1 2 5 vin c1 c2 c3 dc/dc igbt rg vin gnd +vo 0v -vo fig. 4 n ote: on both ends of capacitance c2 and c3 shunt respectively a capacitance value in 1uf -10uf ceramic capacitors. c1/ c2 /c3 100uf/35v (low internal resistance capacitance) 2. it is not allowed to connect modules output in parallel to enlarge the power 3 . for more information please find dc-dc converter application notes on www.mornsun-power.com
dc/dc converter for igbt driver qa xx1 series 201 5 . 09.14 - a/0 page 4 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation d imensions and r ecommended l ayout notes: 1. packing information please refer to product packing information , packing bag number: 58200013; 2. the lead wire connecting the power supply module and igbt driver should be as short as possible during use; 3. the output filtering capacitor should be as close as possible to the power supply module and igbt driver; 4. the peak of the igbt driver gate drive current is high, so low internal resistance electrolytic capacitor is recommended to be used for the power supply module output filter capacitor; 5. the average output power of the driver must be lower than that of the power supply module; 6. consider fixing in place with glue near the module if being used in vibration occasions; 7. the maximum capacitive load is measured under the full input voltage range and full load condition ; 8. unless otherwise specified, parameters in this datasheet were measured under the conditions of ta=25 , humidity<75% with nominal input voltage and rated output load; 9. all index testing methods in this datasheet are based on our company s corporate standards; 10. the performance parameters of the product models listed in this manual are as above, but some parameters of non-standard model products may exceed the requirements mentioned above. please contact our technicians directly for specific information; 11. we can provide product customization service; 12. specifications are subject to change without prior notice. mornsun guangzhou science & technology co., ltd. address: no. 5, kehui st. 1, kehui development center, science ave., guangzhou science city, luogang district, guangzhou, p. r. china tel: 86-20-38601850-8801 fax: 86-20-38601272 e-mail: info@mornsun.cn
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