dc/dc converters 60-75w wide input dc/dc converters 1 2 year warranty bxb75 series dual output ? flexible dual output unit ? 15a maximum per channel ? industry standard footprint ? mtbf >2 million hours (bellcore 332) ? input voltage to ets300-132-2 ? adjustable output voltage ? 2:1 input range ? undervoltage lockout (uvlo) ? ul, vde and csa safety approvals the bxb75 dual is a high power density dc/dc converter packaged in the industry standard footprint (2.40 x 2.28 x 0.50 inches). with no minimum load requirements, either output can supply its maximum current, or both channels can support any combination of loading to a total of 60/75w of output power. suitable for a wide range of applications in nearly any industry, the bxb75 dual was designed with communication and distributed power applications in mind. aluminum baseplate technology with four threaded inserts makes heatsink attachment and optimum thermal management easy. the bxb75 dual series is approved to iec950 by ul, csa and vde. all specifications are typical at nominal input, full load at 25c unless otherwise stated emc characteristics conducted emissions bellcore 1089, fcc part 15 level a (see note 3) en55022, cispr22 level a general specifications efficiency see table isolation voltage input/case 1000vdc (see note 13) input/output 1500vdc output/case 1500vdc switching frequency fixed 400khz approvals and vde0805, en60950, iec950 standards ul1950, csa c22.2 no. 950 case material aluminum baseplate with plastic case material flammability ul94v-0 weight 127g (4.5 oz) mtbf bellcore 332 >2,000,000 hours (calculated) environmental specifications thermal performance operating case temp. -40c to +100c non-operating -50c to +110c altitude operating 10,000 feet max. non-operating 40,000 feet max. vibration 5hz to 500hz 2.4g rms (approx.) output specifications voltage adjustability each output 5.0% set point accuracy 2.0% line regulation 0.25% load regulation 0.50% minimum load (see note 14) 1a undershoot none ripple and noise each output 100mv pk-pk, 5hz to 20mhz (see note 1) 40mv rms max. temperature coefficient 0.01%/c transient response 2.0% max. deviation (see note 2) 300s recovery to within 1.0% remote sense none input specifications input voltage range 48vin nominal 36 to 75vdc input current no load 150ma max. remote off 25ma max. input current (max.) 3.3v/2.5v 2.5a max. @ lo max. and (see note 4) vin = 0 to 75v 5v/3.3v 3.5a max. @ lo max. and vin = 0 to 75v input reflected ripple (see note 6) 20ma pk-pk active low remote on/off (see note 7) logic compatibility ref. to -input cmos/ttl on 1.2vdc max. off 3.5vdc min. or open circuit undervoltage lockout 30v typ. start-up time power up 10ms max. (see note 8) remote on/off 2.5ms max. specifications file name: bxb75d.pdf rev: 24 apr 2002
for the most current data and application support visit www.artesyn.com/powergroup/products.htm notes 1 measured with 10f tantalum capacitor and 0.1f ceramic capacitor across output. 2 di/dt = 1a/1s, vin = 48vdc, tc = 25c, load change = 0.5 lo max. to 0.75 lo max. and 0.75 lo max. to 0.5 lo max. 3 units should be characterised within systems. external components required. 4 input fusing is recommended based on surge current and maximum input current. 5 this product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. 6 simulated source impedance of 12 h. 7 option with active high remote on/off (standard product is active low) is available. designate with the suffix fh, e.g. bxb75-48d05-3v3fh . bxb75-48d3v3-2v5fh is not available. 8 start-up in resistive load. 9 5v at 15a. 10 measured with 15a load on 3.3v output and 5a load on 2.5v output. 11 numbers in brackets refer to output 1. 12 combined maximum output current that may be drawn from both channels simultaneously is 20a (i.e. current from op1 + current from op2). 13 connect input to case when performing hipot test from output to case. 14 1a minimum load required on the higher voltage output. protection short circuit protection 5v/3.3v continuous, 25a max. auto restart 3.3v/2.5v continuous, 32a max. auto restart input surge protection 100vdc for one second max. non repetitive reverse voltage protection yes, up to 17a with (see note 4) source impedance of 5 overvoltage protection latching, 120% vout undervoltage protection non-latching thermal protection 110c baseplate, automatic recovery telecom specification central office interface a ets300-132-2 bxb75 series dual output dc/dc converters 60-75w wide input dc/dc converters 2 www.artesyn.com file name: bxb75d.pdf rev: 24 apr 2002 output input ovp output output output typical regulation model power voltage voltage current current efficiency line load number (7) (max.) op1 op2 (min.) (14) (max.) (12) 60w 36-75vdc 4.0/3.0vdc 3.3v 2.5v 1a 15a 74% (10) 0.25% 0.50% BXB75-48D3V3-2V5FL 75w 36-75vdc 6.0/4.0vdc 5v 3.3v 1a 15a 82% (9) 0.25% 0.50% bxb75-48d05-3v3fl pin connections pin number function 1- vin 2 case 3 remote on/off 4+ vin 5 op1 trim 6 op1 return 7 op1 8 op2 trim 9 op2 return 10 op2 external output trimming (11) output can be externally trimmed by using the method shown. trim up trim down 9 (6) 8 (5) 10 (7) rt1 or rt2
for the most current data and application support visit www.artesyn.com/powergroup/products.htm bxb75 series dual output dc/dc converters 60-75w wide input dc/dc converters 3 all dimensions in inches (mm) tolerance : x.xx 0.02in. (0.51mm) x.xxx 0.010in. (0.254mm) 0.400 (10.16) 1.000 (25.400) 1.600 (40.640) 1 2 3 4 5 6 7 8 9 10 2.40 (60.96) 0.600 (15.24) 1.400 (35.560) 1.900 (48.26) 2.28 (57.91) 2.000 (50.800) 0.040 0.003 ( 1.016 0.080) 10 places 0.50 (12.70) 0.20 min (5.08) side view view shown pin side up 4 x m3 x 0.5 through international safety standard approvals vde0805/en60950/iec950 file no. 10401-3336-1095 licence no. 6249 ul1950 file no. e136005 csa c22.2 no. 950 file no. lr41062c
|
