View MWR28512T883_8612849.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

description the mwr series? of high frequency dc-dc converters offers a wide input voltage range of 14 to 50 volts and up to 35 watts of output power. the units are capable of withstanding short term transients up to 80 volts for one second. the package is a hermetically sealed, welded metal case. flanged and non-flanged models are available. c onverter d esign mwr series dc-dc converters are switching regulators that use continuous flyback conversion topology with a clock frequency of approximately 300 khz. mwr series converters incorporate two internal converters with one converter phase shifted approximately 120 from the other to create a dual phase/phase- shifted operation. each of the internal converters operates at the clock frequency. this design provides completely independent regulation with no cross regulation effect between the main and auxiliary outputs and no minimum loading required on the main output. the design minimizes input ripple, greatly reduces output ripple and improves efficiency. see figure 1: mwr block diagram on page 2. l ow n oise , h igh a udio r ejection the mwr converters feed-forward compensation system provides excellent dynamic response and noise rejection. audio rejection is typically 40 db. the mwr series converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. use our fmce-0528 emi filter to meet the requirements of mil-std-461c ce03 and cs01 and/or mil-std-461d, e and f ce102 and cs101 levels of conducted emissions. i nhibit f unction mwr converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. the converter is inhibited when the inhibit pin is pulled below 0.8 volts. the unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open-collector gate. the open circuit output voltage associated with the inhibit pin is 8.5 to 12 v. in the inhibit mode, a maximum of 4 ma must be sunk from the inhibit pin. s ynchroniza tion synchronizing the converter with the system clock allows the designer to confine switching noise to clock transitions, minimizing interference and reducing the need for filtering. in sync mode, the converter will run at any frequency between 270 khz and 330 khz. the sync control operates with a duty cycle between 40% and 60%. s h ort c ircuit p rotection mwr series converters provide short circuit protection by restricting the output current to approximately 150% of the full load output current. the output current is sensed in the secondary stage to provide highly predictable and accurate current limiting, and to eliminate foldback characteristics. for better protection, the current limit function of the main and the auxiliary sides are linked together. if one output goes to current limit, the other outputs will be turned off at the same time. u nd ervol t age l ockout undervoltage lockout with hysteresis prevents the units from operating below approximately 12 volts input voltage to keep system current levels smooth, especially during initialization or re-start operations. features ? input voltage range 14 to 50 v ? t ransient protection up to 80 v for one second ? output short circuit protection ? -55c to +125c operation ? magnetic feedback ? synchronization ? inhibit function ? up to 33 w/in 3 , 85% efficiency ? undervoltage lockout m ode l s o utput voltage ( v) t ri p le 3.3 v 12 v 3.3 v 15 v 5 v 12 v 5 v 15 v mwr t riple dc-dc converters mwr rev ad - 2016.05.20 14 to 50 vo l t i np ut - 35 w a tt p age 1 of 16 crane aerospace & electronics power solutions crane aerospace & electronics power solutions C interpoint products 10301 willows rd. ne, redmond, wa 98052 +1 425-882-3100 ? power@crane-eg.com www.craneae.com/interpoint
r sense r sense r sense v i r sense v i magnetic isolation magnetic isolation uvlo positive input pwm c on tro ll er #1 pwm c on tro ll er #2 sync in input common f eedback #2 fet driver bias supply i nh ibit case main (+5) output out put common positive aux. output negative aux. output 1 2 3 5 4 10 6, 7 8 9 120 phase shift clock input common fet driver current limit case output common secondary v cc #2 f eedback #1 secondary v cc #1 f igure 1: mwr b lock d iagram mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 2 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
f igure 2: mwr t riple pi n o ut p in t riple output 1 p ositive input 2 main output 3 output common 4 neg. aux. output 5 p os. aux. output 6 case ground 7 case ground 8 inhibit 9 sync. in 10 input common pi n s n ot i n u s e inhibit leave unconnected sync leave unconnected or tie to input common t able 1: p in o ut t able 2: p ins n ot in u se see figure 15 on page 13 and figure 16 on page 14 for dimensions. bottom view mwr triple flanged and non-flanged dotted line outlines flanged package option. 10 9 8 7 6 1 2 3 4 5 squared corner and dot on top of package indicate pin one. mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 3 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
mod el n um be ri ng key mwr 28 512 t f / es base model input voltage output voltage screening number of outputs case option (non-flanged case has no designator in this position) (t = triple) (main and aux. vout for triple models) (standard screening has no designator in this position) smd num be rs s tandard m icrocircuit d rawing (sm d ) mwr s imilar p art 5962-xxxxx01hxc in p rocess mwr283r312t/883 5962-xxxxx02hxc in p rocess mwr283r315t/883 5962-xxxxx03hxc in p rocess mwr28512t/883 5962-xxxxx04hxc in p rocess mwr28515t/883 the smd number shown is for class h screening, non-flanged. to indicate the flanged case option change the x to z in the smd number. for exact specifications for an smd product, refer to the smd drawing. smds can be downloaded from: http://www.landandmaritime.dla.mil/programs/smcr mod el num be r op tio n s t o determine the model number enter one option from each category in the form below . ca t eg or y b ase model and input v oltage output v oltage 1 n umber of outputs 2 case options 3 screening 4 mwr28 3r312, 3r315t, t (non-flanged, leave blank) (standard, leave blank) 512t, 515t f (flanged) es 883 f i ll i n for m od el # mwr28 / notes 1. output voltage: an r indicates a decimal point. 3r312t is 3.3 volts main and 12 volts auxiliaries. 2. number of outputs: t is a triple output. 3. case options: for the standard case, figure 15 on page 13, leave the case option blank. for the flanged case option, figure 16 on page 14, insert the letter f in the case option position. 4. screening: for standard screening leave the screening option blank. for other screening options, insert the desired screening level. for more information see table 10 on page 15 and table 1 1 on page 16. f igure 3: m odel n umbering k ey t able 3: s md c ross r eference t able 4: m odel n umber o ptions mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 4 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 5: o pera ting c onditions , a ll m odels , 25c case , 28 v in , 100% load , unless oth erwise specified . notes 1. guaranteed by qualification test and/or analysis. not an in-line test. 2. for better protection, the current limit function of the main and the auxiliary sides are linked together. if one output goes to current limit, the other outputs will be turned off at the same time. 3. the over-current limit will trigger when the sum of the auxiliary outputs reach 130% (typical value) of the maximum rated total current of both outputs. 4. tested with inhibit pin pulled to ground. 5. an external inhibit interface should be used to pull the inhibit low or leave it floating. the inhibit pin can be left unconnected if not used. mwr s eries a ll m odels p arameter conditions min ty p max units l ead s oldering t em p erature 1 10 seconds max . 300 c storage tem p erature 1 -65 +150 c case o p erating full p ower -55 +125 c tem p erature absolute 1 -55 +135 derating out p ut p ower/current 1 linearly from 100% at 125c to 0% at 135c esd rating 1 mil-std-883, m ethod 3015 2000 - 3999 v mil- p rf-38534, 3.9.5.8.2 c lass 2 isolation: in p ut t o out p ut or any 500 v a t 25c 100 megohms p in t o case exce p t case p ins under voltage lockout 1 r ising v in (t urn o n ) 12.93 v -55c to +125c f alling v in (t urn off ) 1 1.85 current limit 2 m ain 150 % % of full load a ux . 3 130 audio rejection 1 40 db conversion frequency free run -55c to +125c 260 340 khz synchronization in p ut frequency 270 330 khz duty cycle 1 40 60 % active low 0.8 v active high 1 4.5 5.0 referenced to in p ut common if not used leave unconnected inhibit active low (out p ut disabled) inhibit p in p ulled low 4 0.8 v do not apply a voltage to the inhibit pin 5 inhibit p in source 4 ma current 1 referenced to in p ut common inhibit active high (out p ut enabled) inhibit p in condition o p en collector or do not apply a voltage to the inhibit pin 5 unconnected o p en p in voltage 1 8.5 12 v for mean time between failures (mtbf) contact applications engineering powerapps@crane-eg.com +1 425-882-3100 option 7 mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 5 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes 1. guaranteed by design and/or analysis. not an in-line test. 2. effect on negative output when switching loads simultaneously from/to 30%-70% where 100% is the total power of both auxiliaries. 3. at loads <20% of full load, higher input ripple current is possible. 4. limit applies to both main and auxiliary outputs, tested separately. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s. 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. 9. no effect on dc performance. applies to each auxiliary. t able 6: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . tri p le out p ut model C mwr283r312t 3.3 (m ain ) 12 (a uxiliaries ) units p arameter conditions min ty p max min ty p max out p ut voltage m ain and pos . a ux 3.23 3.30 3.37 1 1.76 12.00 12.24 v n eg . a ux . 11.70 12.00 12.30 out p ut current m ain and e ither o ut p ut 3.0 0.833 1.16 1 a v in = 14 to 50 v max t ot al aux 1.67 out p ut p ower m ain and e ither o ut p ut 10 10 14 1 w v in = 14 to 50 v max t ot al aux 20 out p ut ri pp le t c = 25c 15 45 50 80 mv p-p 10 khz - 20 mhz t c = -55c to +125c 15 60 50 120 line regulation m ain and p os. a ux 5 25 5 50 mv v in = 14 t o 50 v n eg . a ux . 28 120 load regulation m ain and +a ux ., nl - fl 5 25 5 50 mv b alanced a ux . -a ux ., nl - fl 20 100 c ross r egulation 2 e ffect on 250 600 mv t c = 25c n egative a uxiliary in p ut voltage continuous 14 28 50 v transient 1 sec 1 80 v in p ut current no load 50 65 ma inhibited 2.5 4 in p ut ri pp le current 3 10 khz - 20 mhz 36 100 ma p-p efficiency t c = 25c 78 81 % t c = -55c to +125c 77 load fault 4, 5 p ower dissi p a tion 6 9.5 5 9.5 w recovery 1 15 20 20 ms ste p load res p onse 5 , 6 transient 75 350 150 600 mv pk 50% - 100% - 50% recovery 120 400 175 600 s ste p line res p onse 1, 5, 7 transient 100 400 200 400 mv pk 14 - 40 - 14 v in recovery 400 600 200 600 s start-u p 5, 8 delay 15 20 20 ms overshoot 1 5 33 5 60 mv pk c a p acitive l oad 1, 9 25c 1000 500 f mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 6 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 7: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . tri p le out p ut model C mwr283r315t 3.3 (m ain ) 15 (a uxiliaries ) units p arameter conditions min ty p max min ty p max out p ut voltage m ain and pos . a ux 3.23 3.30 3.37 14.70 15.00 15.30 v n eg . a ux . 14.62 15.00 15.38 out p ut current m ain and e ither o ut p ut 3.0 0.667 0.93 1 a v in = 14 to 50 v max t ot al aux 1.34 out p ut p ower m ain and e ither o ut p ut 10 10 14 1 w v in = 14 to 50 v max t ot al aux 20 out p ut ri pp le t c = 25c 15 45 35 80 mv p-p 10 khz - 20 mhz t c = -55c to +125c 15 60 35 100 line regulation m ain and p os. a ux 5 25 5 50 mv v in = 14 t o 50 v n eg . a ux . 25 120 load regulation m ain and +a ux ., nl - fl 5 25 5 50 mv b alanced a ux . -a ux ., nl - fl 28 100 c ross r egulation 2 e ffect on 250 600 mv t c = 25c n egative a uxiliary in p ut voltage continuous 14 28 50 v transient 1 sec 1 80 v in p ut current no load 50 70 ma inhibited 2.5 4 in p ut ri pp le current 3 10 khz - 20 mhz 36 100 ma p-p efficiency t c = 25c 79 82 % t c = -55c to +125c 78 load fault 4, 5 p ower dissi p a tion 6 9.5 5 9.5 w recovery 1 15 20 20 ms ste p load res p onse 5 , 6 transient 75 350 175 600 mv pk 50% - 100% - 50% recovery 120 400 145 600 s ste p line res p onse 1, 5, 7 transient 100 400 200 400 mv pk 14 - 40 - 14 v in recovery 400 600 200 700 s start-u p 5, 8 delay 15 20 20 ms overshoot 1 5 33 5 70 mv pk c a p acitive l oad 1, 9 25c 1000 500 f notes 1. guaranteed by design and/or analysis. not an in-line test. 2. effect on negative output when switching loads simultaneously from/to 30%-70% where 100% is the total power of both auxiliaries. 3. at loads <20% of full load, higher input ripple current is possible. 4. limit applies to both main and auxiliary outputs, tested separately. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s. 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. 9. no effect on dc performance. applies to each auxiliary. mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 7 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 8: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . tri p le out p ut model C mwr28512t 5 (m ain ) 12 (a uxiliaries ) units p arameter conditions min ty p max min ty p max out p ut voltage m ain and pos . a ux 4.90 5.00 5.10 1 1.76 12.00 12.24 v n eg . a ux . 11.70 12.00 12.30 out p ut current m ain and e ither o ut p ut 3.0 0.833 1.16 1 a v in = 14 to 50 v max t ot al aux 1.67 out p ut p ower m ain and e ither o ut p ut 15 10 14 1 w v in = 14 to 50 v max t ot al aux 20 out p ut ri pp le t c = 25c 20 45 50 80 mv p-p 10 khz - 20 mhz t c = -55c to +125c 20 60 50 120 line regulation m ain and p os. a ux 5 25 5 50 mv v in = 14 t o 50 v n eg . a ux . 28 120 load regulation m ain and +a ux ., nl - fl 5 25 5 50 mv b alanced a ux . -a ux ., nl - fl 20 100 c ross r egulation 2 e ffect on 250 600 mv t c = 25c n egative a uxiliary in p ut voltage continuous 14 28 50 v transient 1 sec 1 80 v in p ut current no load 50 70 ma inhibited 2.5 4 in p ut ri pp le current 3 10 khz - 20 mhz 40 100 ma p-p efficiency t c = 25c 81 84 % t c = -55c to +125c 80 load fault 4, 5 p ower dissi p a tion 7 9.5 5 9.5 w recovery 1 15 20 20 ms ste p load res p onse 5 , 6 transient 75 350 150 600 mv pk 50% - 100% - 50% recovery 230 400 175 600 s ste p line res p onse 1, 5, 7 transient 100 400 200 400 mv pk 14 - 40 - 14 v in recovery 400 900 200 600 s start-u p 5, 8 delay 15 20 20 ms overshoot 1 5 50 5 60 mv pk c a p acitive l oad 1, 9 25c 1000 500 f notes 1. guaranteed by design and/or analysis. not an in-line test. 2. effect on negative output when switching loads simultaneously from/to 30%-70% where 100% is the total power of both auxiliaries. 3. at loads <20% of full load, higher input ripple current is possible. 4. limit applies to both main and auxiliary outputs, tested separately. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s. 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. 9. no effect on dc performance. applies to each auxiliary. mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 8 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 9: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . tri p le out p ut model C mwr28515t 5 (m ain ) 15 (a uxiliaries ) units p arameter conditions min ty p max min ty p max out p ut voltage m ain and pos . a ux 4.90 5.00 5.10 14.70 15.00 15.30 v n eg . a ux . 14.62 15.00 15.38 out p ut current m ain and e ither o ut p ut 3.0 0.667 0.93 1 a v in = 14 to 50 v max t ot al aux 1.34 out p ut p ower m ain and e ither o ut p ut 15 10 14 1 w v in = 14 to 50 v max t ot al aux 20 out p ut ri pp le t c = 25c 20 45 35 80 mv p-p 10 khz - 20 mhz t c = -55c to +125c 20 60 35 100 line regulation m ain and p os. a ux 5 25 5 50 mv v in = 14 t o 50 v n eg . a ux . 28 120 load regulation m ain and +a ux ., nl - fl 5 25 50 50 mv b alanced a ux . -a ux ., nl - fl 25 100 c ross r egulation 2 e ffect on 250 600 mv t c = 25c n egative a uxiliary in p ut voltage continuous 14 28 50 v transient 1 sec 1 80 v in p ut current no load 50 70 ma inhibited 2.5 4 in p ut ri pp le current 3 10 khz - 20 mhz 40 100 ma p-p efficiency t c = 25c 82 85 % t c = -55c to +125c 81 load fault 4, 5 p ower dissi p a tion 7 9.5 5 9.5 w recovery 1 15 20 20 ms ste p load res p onse 5 , 6 transient 75 350 175 600 mv pk 50% - 100% - 50% recovery 230 400 145 600 s ste p line res p onse 1, 5, 7 transient 100 400 200 400 mv pk 14 - 40 - 14 v in recovery 400 900 200 700 s start-u p 5, 8 delay 15 20 20 ms overshoot 1 5 50 5 70 mv pk c a p acitive l oad 1, 9 25c 1000 500 f notes 1. guaranteed by design and/or analysis. not an in-line test. 2. effect on negative output when switching loads simultaneously from/to 30%-70% where 100% is the total power of both auxiliaries. 3. at loads <20% of full load, higher input ripple current is possible. 4. limit applies to both main and auxiliary outputs, tested separately. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s. 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. 9. no effect on dc performance. applies to each auxiliary. mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 9 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . frequency (hz) mwr28515t a udio r ejection with fmc e-0528 f igure 4 f igure 5 f igure 6 f igure 7 mwr28515t s tep l oad m ain , 50% - 100% - 50% u nits are per d ivision , 10 s s lew r a te attenuation (db) 0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k mwr28515t i nput r ipple u nits are per d ivision mwr28515t o utput r ipple u nits are per d ivision main -aux +aux mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 10 of 16 mwr t riple dc-dc converters mwr rev ad - 2016.05.20 p age 10 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint crane aerospace & electronics power solutions www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mwr28515t s tep l oad a ux ., 50% - 100% - 50% u nits are per d ivision , 10 s s lew r a te f igure 8 f igure 9 mwr28515t s tep l ine 14 v in to 50 v in u nits are per d ivision f igure 10 mwr28515t s tep l ine 50 v in to 14 v in u nits are per d ivision mwr28515t s t a rt - up into f ull l oad u nits are per d ivision f igure 11 main main -aux -aux +aux +aux main -aux +aux -aux +aux mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 11 of 16 mwr t riple dc-dc converters mwr rev ad - 2016.05.20 p age 11 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint crane aerospace & electronics power solutions www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mwr283r312t e fficiency 70 75 80 85 5 10 15 20 25 30 35 28 v 50 v 16 v 42 v watts output power 100% 20% efficiency (%) f igure 12 f igure 13 mwr28515t e fficiency 70 75 80 85 5 10 15 20 25 30 35 28 v 50 v 16 v 42 v watts output power 100% 20% efficiency (%) c ondition a l oad : - v 50%, +v 50% to 10% c ondition b l oad : + v 50%, -v 50% to 10% c ross r egula tion f igure 14 -5.0% -3.0% -1.0% 1.0% 3.0% 5.0% 10 20 30 40 50 mwr283r312t mwr283r312t mwr28515t mwr28515t condition a condition b -v out voltage change (%) output load (%) mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr t riple dc-dc converters crane aerospace & electronics power solutions www.craneae.com/interpoint crane aerospace & electronics power solutions www.craneae.com/interpoint
10 9 8 7 6 0.000 0.170 (4.32) 1.170 (29.72) 0.000 0.170 (4.32) 0.570 (14.48) 0.970 (24.64) 1.370 (34.80) 1.770 (44.96) 1 2 3 4 5 0.040 dia. 0.002 (1.02 0.05) 0.000 0.25 (6.4) 0.401 max. (10.19) bottom view mwr seam seal squared corner and dot on top of case indicates pin one weight: 58 grams max. case dimensions in inches (mm) tolerance 0.005 (0.13) for three decimal places 0.01 (0.3) for two decimal places unless otherwise specified caution heat from reflow or wave soldering may damage the device. solder pins individually with heat application not exceeding 300c for 10 seconds per pin. materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold ceramic seal gold plating of 50 - 150 microinches is included in pin diameter seal hole 0.120 0.002 (3.05 0.05) case f1 mwr, rev a, 2015.05.29 please refer to the numerical dimensions for accuracy. 1.350 max. (34.29) 1.950 max. (49.53) f igure 15 : m wr mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 13 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
0.000 0.25 (6.4) 0.401 max. (10.19) seam seal 10 9 8 7 6 0.000 0.170 (4.32) 0.210 (5.33) 0.570 (14.48) 0.970 (24.64) 1.370 (34.80) 1.770 (44.96) 2.150 (54.61) (1.940 (49.28)) 1 2 3 4 5 0.170 (4.32) 0.000 1.170 (29.72) 0.670 (17.02) flanged cases: designator "f" required in case option position of model number. bottom view mwr flanged sharp corner and dot on top of case indicate pin one. flange thickness: 0.060 (1.52) 1.350 max. (34.29) weight: 60 grams maximum case dimensions in inches (mm) tolerance 0.005 (0.13) for three decimal places 0.01 (0.3) for two decimal places unless otherwise specified caution heat from reflow or wave soldering may damage the device. solder pins individually with heat application not exceeding 300c for 10 seconds per pin. materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold ceramic seal gold plating of 50 - 150 microinches included in pin diameter seal hole: 0.120 0.002 (3.04 0.05) case j1 mwr, rev a, 2015.05.29 please refer to the numerical dimensions for accuracy. 2 x r 0.170 (4.32) (2.720 max (69.09)) 2 x dia 0.162 0.002 (4.11 0.05) 0.040 dia. 0.002 (1.02 0.05) f igure 16: mwr f langed mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 14 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
table is for reference only. see individual series' datasheets for specific screening. t able 8: e lement e valuation h igh r eliability dc-dc c onverters and emi f ilters /883 (c lass h) e lement e valuation 1 h igh r eliability /883 (c lass h) qml c lass h /883 c omponent -l evel t est p erformed m/s 2 p 3 element electrical n n visual n n internal visual n final electrical n n wire bond evaluation n n notes 1. element evaluation does not apply to standard and /es product. 2. m/s = active components (microcircuit and semiconductor die). 3. p = passive components, class h element evaluation. not applicable to standard and /es element evaluation. t able 10: e lement e v alua tion mwr t riple dc-dc converters 14 to 50 vo l t i np ut - 35 w a tt mwr rev ad - 2016.05.20 p age 15 of 16 crane aerospace & electronics power solutions www.craneae.com/interpoint
table is for reference only. see individual series' datasheets for specific screening. t able 9: e nvironmental s creening h igh r eliability dc-dc c onverters and emi f ilters s tandard , /es and /883 (c lass h) e nvironmental s creening h igh r eliability s tandard , /es and /883 (c lass h) non -qml 1 qml 2 t est p erformed s tandard /es c lass h /883 pre-cap inspection, method 2017, 2032 n n n temperature cycle (10 times) method 1010, cond. c, -65c to +150c, ambient n method 1010, cond. b, -55c to +125c, ambient n constant acceleration method 2001, 3000 g n method 2001, 500 g n pind, test method 2020, cond. a n 3 burn-in method 1015, +125c case, typical 4 96 hours n 160 hours n final electrical test, mil-prf-38534, group a, subgroups 1 through 6, -55c, +25c, +125c case n subgroups 1 and 4, +25c case n n hermeticity test gross leak, cond. c 1 , fluorocarbon n n fine leak, cond. a 2 , helium n n gross leak, dip n final visual inspection, method 2009 n n n test methods are referenced to mil-std-883 as determined by mil-prf-38534. notes 1. standard and es are non-qml products and may not meet all of the requirements of mil-prf-38534. 2. all processes are qml qualified and performed by certified operators. 3. not required by dla but performed to assure product quality. 4. burn-in temperature designed to bring the case temperature to +125c minimum. burn-in is a powered test. t able 11: e nvironment al s creening mwr t riple dc-dc converters mwr triple, mwr rev ad - 2016.05.20. this revision supersedes all previous releases. all technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. crane electronics, inc reserves the right to make changes in products or specifications without notice. interpoint is a registered trademark of crane co. mwr series is a trademark of crane electronics, inc. copyright ? 1999 - 2016 crane electronics, inc. all rights reserved. www.craneae.com/interpoint 14 to 50 vo l t i np ut - 35 w a tt p age 16 of 16 crane aerospace & electronics power solutions

▲Up To Search▲

Price & Availability of MWR28512T883

	To Download MWR28512T883 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .