WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W series series model model model model model model model model selection selection selection selection selection selection selection selection wrb wrb wrb wrb wrb wrb wrb wrb 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 y y y y y y y y q q q q q q q q d d d d d d d d - - - - - - - - 3 3 3 3 3 3 3 3 0w 0w 0w 0w 0w 0w 0w 0w product series input voltage output voltage wide ( 2 :1) input range dip package style rated power 30 30 30 30 w, w, w, w, wide wide wide wide input, input, input, input, isolated isolated isolated isolated & & & & regulated regulated regulated regulated single single single single output output output output dc dc dc dc - - - - dc dc dc dc converter converter converter converter features features features features features features features features wide 2:1 dc input range in/out capacitance1000pf protections : short circuit / overload / over voltage 1000vdc i/o isolation for d/d cooling by free air convection built-in remote on-off control 100% full load burn-in test fixed switching frequency at 225khz lost cost mtbf>1000khours high reliability 1 year warranty applications applications applications applications applications applications applications applications microdc reserves the copyright http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1/3 the wrb- yq d- 30 w series series of dc/dc converters has been designed for a wide range of applications including communications, industrial systems and battery powered mobile equipments. key features are high power density (12w in a 2 x1 x 0.4 package) and ultrawide input ranges of 9 C 36 vdc and 18 C 75 vdc. other features of this converter are internal filtering according to en 55022, level a, safety approval to en 60950 and ul 1950, wide operating temperature range and remote on/off (opt.). selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide order code input voltage range output voltage output current max. efficiency typ. wrb1203yqd-5000 9.2 ~ 18 vdc 3.3 vdc 5000 ma 77 wrb1205yqd-5000 9.2 ~ 18 vdc 5 vdc 5000 ma 77 wrb1212yqd-2100 9.2 ~ 18 vdc 12vdc 2100 ma 80 wrb1215yqd-1700 9.2 ~ 18 vdc 1 5 vdc 1700 ma 80 wrb2403yqd-5000 18~ 36 vdc 3.3 vdc 5000 ma 79 wrb2405yqd-5000 18~ 36 vdc 5 vdc 5000 ma 79 wrb2412yqd-30w 18~ 36 vdc 12vdc 2500 ma 82 wrb2415yqd-30w 18~ 36 vdc 1 5 vdc 2000 ma 83 wrb4803yqd-5000 36~ 72 vdc 3.3 vdc 5000 ma 80 wrb4805yqd-5000 36~ 72 vdc 5 vdc 5000 ma 80 wrb4812yqd-30w 36~ 72 vdc 12vdc 2500 ma 84 wrb4815yqd-30w 36~ 72 vdc 1 5 vdc 2000 ma 85 specification specification specification specification specification specification specification specification input dc current 12s:3.6a 24s:2a 48s:1a idle current 12s:35ma 24s/48s:30ma protectio n overload above 105% rated output power protection type : over power limiting, recovers automatically after fault condition is removed over voltage wrbxx03:3.8 ~ wrbxx05:5.75 ~ 7.5v wrbxx12:13.8 ~ 18v wrbxx15:17.25 ~ 22.5v protection type : shut off o/p voltage, clamping by zener short circuit protection type : constant current limiting, recovers automatically after fault condition is removed function on/off control logic "1" or open: power on logic "0" short to vin-: power off environmen t working temp. -25 ~ +85 (refer to output load derating curve) storage temp., humidity -25 ~ +85 , 0 ~ 95% rh temp. coefficient 0.03%/ 0~50 safety &emc (note 6) safety standards design refer to lvd isolation voltage i/p-o/p:1kvdc isolation resistance i/p-o/p:100m ohms/500vdc emi conduction & radiation compliance to en55022 (cispr22) class b ems immunity compliance to en61000-2,3,4,6,8; env50204, en55024, light industry level,criteria a others mtbf 322.4k hrs min. mil-hdbk-217f (25 ) dimension 50.8*50.8*16mm (2"*2"*0.63") (l*w*h) packing 0.1kg; 150pcs/15.8kg/0.97cuft note 1. all parameters not specially mentioned are measured at 12,24,48vdc input, rated load and 25 of ambient temperature. 2. ripple & noise are measured at 20mhz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. tolerance : includes set up tolerance, line regulation and load regulation. 4. short circuit not more than 60 second. 5. dc source wires 5cm, an input external al capacitor 47 ~ 100uf is required. 6. the power supply is considered a component which will be installed into a final equipment. the final equipment must be re-confirmed that it still meets emc directives.
WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 /3 pin no. assignmen t pin no. assignme nt pin no. assignmen t 1 +vin 6 +vout 2 -vin 7 -vout 3,5 no pin 8 trim 4 control on/off application application application application application application application application note note note note note note note note requirement requirement requirement requirement on on on on output output output output load load load load in order to ensure the product operate efficiently and reliably,in addition to a max load(namely full load), a minimum load is specified for this kind of dc/dc converter.make sure the specified range of input voltage is not exceeded,the minimum output load no less than 10% load.if the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly.if the actual output power is very small,please add an appropriate resistor as extra loading,or contact our company for other lower output power products. recommended recommended recommended recommended circuit circuit circuit circuit all the wrb_ yq d- 30 w series have been tested a ccording to the following recommended testing circuit before leaving factory.this series should be tested under load(see figure 1). if you want to further decrease the input/output ripple,you can increase capacitance properly or choose capacitors with low esr.however,the capacitance of the output filter capacitor must be proper.if the capacitance is too big,a startup problem might arise.for every channel of output,provided the safe and reliable operation is ensured,the greatest capacitance of its filter capacitor sees (table 1).general: cin: 10 f-47 f c out : 10 f/100ma ctrl ctrl ctrl ctrl terminal terminal terminal terminal when open or high impedance,the converter work well; when this pin is high ; the converter shutdown; it should be note that the input current (ic) should between 5-10ma, exceeding the maximum 20ma will cause permanence damage to the converter. the value of r can be derived as follows : input input input input current current current current while using unstable power source,please ensure the output voltage and ripple voltage do not exceed indexes of the converter.the preceding power source must be able to provide for converter sufficient starting current ip(figure 2). general:ip 1. 6 *iin-max no no no no parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play play play play mechanical mechanical mechanical mechanical mechanical mechanical mechanical mechanical specification specification specification specification specification specification specification specification typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics temperature derating graph recommended recommended recommended recommended recommended recommended recommended recommended circuit circuit circuit circuit circuit circuit circuit circuit output graph external output trimming on/off on/off on/off on/off on/off on/off on/off on/off control control control control control control control control pin pin pin pin pin pin pin pin control input.....................................pin4 control common................................pin2 logic compatibility......cmos or open collector ttl control voltage on............+5.5vdc min or open circuit off......+2.5vdc max. or short to pin2
WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W WRB-YQD-30W series series outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions footprint footprint footprint footprint footprint footprint footprint footprint details details details details details details details details http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3/3 recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint tube tube tube tube tube tube tube tube outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] l= 230 mm[ 9.055 inch] tube quantity: 7 pcs microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn rohs rohs rohs rohs compliant compliant compliant compliant information information information information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300 c for 10 seconds. the pin termination finish on the sip package type is tin plate, hot dipped over matte tin with nickel preplate. the dip types are matte tin over nickel preplate. both types in this series are backward compatible with sn/pb soldering systems. reach reach reach reach compliant compliant compliant compliant information information information information this series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval.
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