bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 9.3vdc/36.5 a output, 1/4 brick ? industry standard quarter-brick package ? up to 300 w at 95% efficiency ? 1500 v isolation ? safety agency approvals description the 07cm-38s ?cimarron? series are isolated dc/dc converters that operate from a nominal 48 vdc source. these converters use a full bridge power train to provide isolation and step down. these units will provide up to 300 w of output power from a nominal 54 vdc input. these units are designed to be highly efficient and low cost. features include remote on/off, over current protection and under voltage lockout. these converters are provided in an industry standard quarter -brick package. part selection output voltage input voltage max. output current max. output power typical efficiency model number 9.3 vdc 48 vdc 36.5 a 300 w 95% 07CM-38S10L notes: 1. add ?g? suffix at the end of the model number to indicate tray packaging. 2. all part numbers above indicate rohs 5. change the second letter "7" to "r" for rohs 6 part numbers. input specifications parameter min typ max notes input voltage range 36 v - 55 v input current (no load) - - 110 ma input current (full load) - - 7.2 a reflected ripple current (rms) - - 200 ma see figure 1 for measurement technique under-voltage lockout turn-on turn off - - 35.8 v 33.8 v - - over-voltage lockout - 57.1 v - output specifications parameter min typ max notes output voltage 36vin 48vin 55vin - - - 7.0 v 9.3 v 10.6 v - - - setpoint at no load. output current 0 a - 36.5 a output power - - 300 w load regulation - - 0.6 v ripple and noise (pk-pk) - - 150 mv 0 to 20 mhz bandwidth, use 1.0 uf ceramic cap and 100 uf/50mohm tantalum on output load capacitance 100 uf (50mohm) - 3000 uf transient response max deviation recovery to within 1% - - 150 mv 50 us 250 mv 100 us di/dt =0 .1 a/us, vin =48 v ta = 25 c, 25% load change. 07CM-38S10L rohs 5 com p liant rev.c
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 9.3vdc/36.5 a output, 1/4 brick general specifications parameter min typ max notes switching frequency - 96 khz - fixed weight - 56 g (2.0oz) - operating temperature -40 c - 85 c non-operating temperature -55 c - 125 c overtemp shutdown - 120 c - 10 c hysteresis measured on q4 dimensions inches (l w h) millimeters (l w h) 2.28 x 1.45 x 1.00 57.9 x 36.8 x 25.4 protection features short circuit over current undervoltage overvoltage latching 110% to 125% max io uvlo vin < 35.0 ovsd vin>57.0 remote on/off active low (optional active high) turn on delay outupt voltage rise time 0 v 1.0 v - - - - 2.7 ms 4.3 ms 0.4 v 18 v - - safety agency approvals (pending) ul / cul recognized certified to en60950 derating @ 38vdc input 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 ambient temperature c output curren t 200lfm 100lfm natural convection derating @ 54vdc input 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 ambient temperature c output current 200lfm 100lfm natural convection figure 1: measurement circuit for reflected ripple current .
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 9.3vdc/36.5 a output, 1/4 brick thermal images top side of unit w/o heatsink vin: 39 vdc iout: 33.2 a pout: 240 w tamb: 22 c airflow: 200 lfm 100.0 75.0 50.0 *>100.0 ? c *<40.0 ? c air flow 80.0 55.0 30.0 *>100.0 ? c *<40.0 ? c air flow bottom side of unit vin: 39 vdc iout: 33.2 a pout: 240 w tamb: 22 c airflow: 200 lfm
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 9.3vdc/36.5 a output, 1/4 brick thermal images (continued) 55.0 40.0 25.0 *>100.0 ? c *<40.0 ? c air flow top side of unit w/ 0.5? heatsink vin: 39 vdc iout: 33.2 a pout: 240 w tamb: 22 c airflow: 200 lfm
? 2010 bel fuse inc. specifications subject to change without notice. 050710 corporate far east europe bel fuse inc. bel fuse ltd. bel fuse europe ltd. 206 van vorst street 8f/ 8 luk hop street preston technology management centre jersey city, nj 07302 san po kong marsh lane, suite g7, preston tel 201-432-0463 kowloon, hong kong lancashire, pr1 8ud, u.k. fax 201-432-9542 tel 852-2328-5515 tel 44-1772-556601 www.belfuse.com fax 852-2352-3706 fax 44-1772-888366 www.belfuse.com www.belfuse.com isolated dc/dc converters 48 vdc input 9.3vdc/36.5 a output, 1/4 brick mechanical drawing rohs compliance these devices contain lead, as part of the solder and solder plating alloys, and thus can be considered rohs compliant if used in server or telecommunications infrastructure equipment applications (rohs 5). pin connections pin function 1 + vin 2 remote on/off 3 - vin 4 - vout 5 + vout
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