Ultra Low Noise, Ultra Compact, Isolated type DC-DC Converter 1.5Watt BLA12 Series

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Georgiana Oliver
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1 .Watt BL Series Our BL series isolated-type DC-DC converters feature a small package (4x0.x9.mm) and light weight (.g) capable of.w output. s ultralow noise and extremely high efficiency are made possible by a new circuit, it is ideal for an analog circuit as well as analog and digital hybrid circuit. Features - Ultra low noise - djustable Output oltage - ON/OFF Control - Dual power supply usable as single power supply - Withstand voltage C00 - Built-in Over Current Protection Circuit - No tantalum capacitor or electrolytic capacitor - Covered with a metal shield - Surface Mount Package - No heat sink needed - Operating Temp Range 40 C to +8 C (Temperature derating required) - RoHS Compliant Model/Rating Table Ripple Models Input Output Output I Line Reg. Reg. Noise Efficiency BL Series dc dc m m(max.) m(max.) mpp(typ.) %(typ.) BL-0S0 0 to to 8 () 0 to(00) BL-W0 ±(±) 0 to 0(0) Note : Output voltage in parentheses is when adj and out are short-circuited. Note : Output current in parentheses is at the maximum output voltage. Note : Ripple noise and efficiency are at input voltage and load rating. Note 4: Ripple noise is measured at 0MHz bandwidth, with a multi layered ceramic capacitor with 0μF at input and 0.μF at output. Specifications Table Input voltage range Refer to Table Rated output voltage.0±%, ±%, ±±% (When adj terminal is open) djustable output voltage range 4. to.0 (.0 model),.4 to ( model), ±.4 to ± (± model) Line regulation Refer to Table (Rated output, Input voltage varying in the range of Table ) regulation Refer to Table (Rated input/output, varying from 0 to 00%, ±output is upon balanced load) Temperature regulation 40m typ.(.0 model), 00m typ. ( model), 0m typ. (± model) (Rated input/output, for within ambient temperature range with 00% load at temperature derating) Ripple noise Refer to Table (Rated input/output, common temp, measurement frequency bandwidth 0MHz) Efficiency 8% to 8% typ. (Rated input/output, Common temp., Refer to Table ) Over current protection Operate at 0% or above of rated load current. uto restart type. Over voltage protection None Under oltage Lock Out Yes Input over current protection None Remote ON/OFF control Between Pin () and Pin (ON/OFF): Output is ON when open, output is OFF when short. Standby current m max. Withstand voltage Between input and output, input and case, output and case: One minute at C00. Insulation resistance Between input and output, input and case, output and case: 0MΩ or more (at DC00) Capacitance between P and S pprox. 80 to 40pF (depending on the model) Operating temp range Operating temperatures 40 C to +8 C (Refer to temp derating described separately) Storage temp range Storage temperatures -40 C to +8 C Humidity range 0 to 9%R.H. (Max. wet bulb temp C with no condensation) Storage conditions Below 0 C/0% R.H. before mounting the converter Cooling conditions Natural cooling (install in a well-ventilated place) ibration 0 to Hz Total amplitude.mmp-p (H for each of three directions) Sweep time min Impact cceleration 00G ( times for each of three directions, total 8 times) Duration ms Weight.g typ. Outer dimensions W=4 L=0. H=9. typ.(mm) (For dimensional details, refer to the shape and dimensions shown separately) The above specifications are provided with rated value, unless otherwise specified. The contents provided in this datasheet may be changed at any time without prior notice. BDD00

2 .Watt BL Series. Scope These specifications shall apply to the DC input, isolated type DC-DC converter BL series.. Model/Rating Model name BL-0S0 Rated input voltage Rated output Shape Remarks.0, 00m DC.0.0, m SMD BL-W0 ±, each 0m Unless otherwise mentioned in these specifications, input shall be rated input, output shall be rated output, and ambient temperature shall be C± C.. Environmental conditions - Temperature range In operation In storage - Humidity range In operation In storage 40 C to +8 C (Derating required) 40 C to +8 C 0 to 9%R.H. (However, max. wet bulb temperature C, no condensation) 0 to 9%R.H. (However, max. wet bulb temperature C, no condensation) Note) For storage before mounting, store in a place below 0 C and 0% R.H. BDD00

3 .Watt BL Series 4. Specifications & Standards This product is RoHS compliant. 4- Input conditions and output characteristics * Model name Input voltage Output voltage Output current m Output voltage stability * Input m max. m max. Temp. m typ. Output ripple noise * mp-p typ. / max. Efficiency *4 % typ. BL-0S0 9 to 8 ±% 0 to / 8 9 to 8 ±% 0 to / 8 BL-W0 9 to 8 ±±% 0 to / 8 * With the measurement circuit of 4-4. Unless otherwise mentioned, rated input and output, and ambient temperature shall be C± C. * Input: For fluctuations of input voltage = min. to max. : For fluctuations of output current = 0 to rated. Temperature: For fluctuations of ambient temperatures = -40 to Tamax. For within ambient temperature range with 00% load at temperature derating of 4-. two output product is when + output current and output current are equal. * Measured frequency bandwidth 0MHz. t both ends of external capacitor (C, or C4, C). *4 t rated input voltage and maximum output current. 4- Capacitance of external capacitor This product has a limited capacitance for an output external capacitors. Limit the capacitance of an external capacitor as follows: Output external capacitor Model name Capacitance Plus output side Minus output side BL-0S0 0 to 00μF * 0 to 4μF * BL-W0 0 to μf * 0 to μf * * Total of C and C in the Standard Connection Circuit of.() * Total of C and C4 in the Standard Connection Circuit of.() * Total of C and C in the Standard Connection Circuit of.() BDD00

4 .Watt BL Series 4- Temperature derating rate (%) 負荷率 (%) 00 自然空冷 Natural cooling mbient 周囲温度 temperature ( ) ( C) BL-0S0 BL-W0 Note) at rated output 4-4 Measurement circuit in + C ON/OFF SW Series adj C: 0μF( 積セラ (Multi-layered ) ceramic capacitor) +out SW C C: 0.μF( 積セラ (Multi-layered ) ceramic capacitor) SW Open = Output 出力 ON Short = Output 出力 OFF SW Open:out=, Short:out= in + ON/OFF C SW BL-W Series +out C4 C SW Open = Output 出力 ON Short = Output 出力 OFF SW4 Open: out = ± Short: out = ± adj 4 C: 0μF( (Multi-layered 積セラ ) ceramic capacitor) SW4 C4, C: 0.μF( (Multi-layered 積セラ ) ceramic capacitor) Coaxial 同軸ケーブル cable: : 0Ω,.m R: Ω C: 0.μF C R Oscilloscope オシロスコープ (Measurement ( リップルof ノイズの測定 ripple noise) ) 4 BDD00

5 .Watt BL Series 4- dditional functions Item Specifications & Standards Conditions Over current Operate at 0% or above, auto restart type. protection circuit Over voltage protection circuit None djustable output 4. to.0 (BL-0S0) By external resistor voltage range.4 to () Refer to - ±.4 to ± (BL-W0) ON/OFF control Open for output ON Low (0 to 0., 4m max.) for output OFF Refer to - 4- Withstand voltage and Insulation resistance ) Withstand voltage Between input and output, input and case, output and case: One minute at C00 ) Insulation resistance Between input and output, input and case, output and case: 0MΩ or more (at DC00). Outer dimensions and description of terminals - Shape and dimensions ピンマーク Pin mark 4.0±0. 9. max. 0.±0. Bellnix DC-DC CONERTER BL-0S0 Top iew 会社ロゴ Company logo 製品型名 Model name Lot No. 0. min. Pin Function BL-W in in ON/OFF ON/OFF 4 NC out out Com adj adj +out +out CL.8.8.±0. Side iew CL.8±0. 4. Bottom iew.4 Materials of terminals and case Terminal pin Material: Copper Plating: Gold plating after nickel plating Case Material: Nickel silver - Unit: mm - Dimensional tolerance (unless specified):±0. - Weight:.g typ. - Tolerance on terminals 0. mm max. (Max. lifting of the terminal part when placed on a plane) BDD00

6 .Watt BL Series - Recommended footprint dimensions.9 CL. CL Note) Recommended dimensions are shown above. Use your design standard for your specific design. - Lot indication 8 (Manufactured in ugust 0) (0 年 8 月製造 ) D (0 (Manufactured 年月製造 in ) December 0) 製造管理密番 Production code ( 無表示の場合もあり for manufacturing control ) (may not be indicated) 製造月 Manufacturing (~9 月 month =~9 (Jan 0 to 月 Sep =O = to 月 9, =N Oct = O, 月 =D) Nov = N, Dec = D) 製造年 Manufacturing ( 西暦末尾 year (the 桁 ) last digit of.d.). Standard connection circuit - series Fuse +out C SW SW Open Open = Output = 出力 ON ON Short Short = Output = 出力 OFF OFF ON/OFF Series C adj C SW SW Open: out =, Short: out = C: 4.μF C: 4.μF C: 0.4μF - BL-W series Fuse C SW SW Open = Output = 出力 ON ON/OFF Short = Output = 出力 OFF BL-W Series 4 +out C C adj SW C4 C Common SW Open: out = ± Short: out = ± ± C: 4.μF C, C: 4.μF C4, C: 0.4μF Note) This product has no built-in fuse. lways connect a fuse to the line. llow enough capacity for power supply for a fuse to blow. BDD00

7 .Watt BL Series. arious functions - ON/OFF control The ON/OFF control function enables users to control ON/OFF of the output voltage without inputting or cutting it off. Between in terminal (No. pin) and ON/OFF terminal (No. pin) Open ( max.) : Output ON Short (0 to 0. 4m max.) : Output OFF ON/OFF or - Output over current protection If output current has reached over current status, output voltage is lowered and the over current protection circuit is activated. (Over current protection circuit actuating current: 0% or above of the rated load current) The converter automatically returns to normal operation as soon as over current status is resolved. Holding of over current status for over 0 seconds may result in damage, so resolve over current status within 0 seconds. lso, if the converter does not return to normal operation automatically even if the over current status has been resolved, turn off the power once or turn the output OFF with an ON/OFF control and reactivate. Characteristics in the over current mode Output oltage[%] Output Current[%] Note) The drooping characteristic may be seen in the over current protection characteristics as shown on the left. Note that output voltage may not come up upon the activation if connected to a nonlinear load such as a lamp, motor, etc., or a constant current load. BDD00

8 .Watt BL Series - Output voltage adjustment -- Short circuit adj and out terminal Output voltage can be set at the maximum as per the following table by short-circuiting adj and out terminals. In case of no variable output voltage, open the terminal. Output voltage for the connection of adj terminal Model name Between adj and out terminals Open Short BL-0S BL-W0 ±.0 ±.0 -- Resistor adjustment control You can also adjust output voltage by inserting a resistor between adj terminal and +out terminal or out terminal. To decrease the output voltage To increase the output voltage +out +out Rb adj adj Ra or 4 or 4 * pin: is pin, BL-W is 4 pin Model name BL-0S0 BL-W0 To decrease the output voltage Output voltage: o[], Connecting resistor: Rb[kΩ] o = (490 Rb + ) / (00 Rb + 00) Rb = ( 00 o) / (00 o 490) ariable range: o=4. min. o = (99 Rb + 4) / (0 Rb + 0) Rb = (4 0 o) / (0 o 99) ariable range: o=.4 min. o = (00 Rb + 00) / (440 Rb + 0) Rb = (00 0 o) / (440 o 00) ariable range: o=±.4 min. To increase the output voltage Output voltage: o[], Connecting resistor: Ra[kΩ] o = (490 Ra + ) / (00 Ra + 00) Ra = ( 00 o) / (00 o 490) ariable range: o=.0 max. o = (99 Ra + 4) / (0 Ra + ) Ra = (4 o) / (0 o 99) ariable range: o=.0 max. o = ( Ra + 9) / (0 Ra + 90) Ra = (9 90 o) / (0 o ) ariable range: o=±.0 max. Note) If output voltage is made variable, use at the maximum power (.W) or less. If output voltage is made lower, do not connect RB to resistor which less than o min setting resistor value. 8 BDD00

9 .Watt BL Series -4 ctivation and deactivation voltage This product has an under voltage lock out function to prevent malfunction when low input voltage. The activation voltage and deactivation voltage is within the range shown in the table below. mbient temperature Range of activation and deactivation voltage -40 to 8 C Protection against reverse connection of input power supply (example) This product will be damaged if erroneously connected with reverse input polarity. To cope with a possible reverse connection, add a protection circuit as shown in the following figure. The following is an example using a fuse and a diode. Fuse +out D C Series C C 9. Common mode noise reduction method (example) To reduce common mode noise of this product, connect a capacitor of 000pF or so (C4) between the primary and secondary terminals. In this case, note that using a capacitor of too much capacitance may result in the increase of coupling capacitance between primary and secondary terminals. Fuse +out D C Series C C C4 0. Input feedback noise reduction method (example) Input feedback noise can be reduced by designing a Pi filter at input side. dd as needed. Fuse L C C Series 9 BDD00

10 .Watt BL Series. Serial operation method (example) Serial operation is possible by wiring this product as per the following figure. Limit the output current not to exceed the smaller rated current of the power supplies connected in series to avoid more current than rating to run into the power supply. Fuse +out Series D Fuse +out Series D Note) This product is not suitable for parallel operation. Schottky diodes of low forward voltage are recommended for D and D.. Soldering conditions Observe the following conditions for soldering temperature and time. Flow mounting is not possible for this product. Reflow method Reflow temperature profile In the case of Sn-g-0.Cu series solder Parts surface 部品表面温度 temperature ( ) ( C) TP Ty Ty ' B B' C ' B B' C.0 ~.0 /s Ty: Ty: Ty ~ Ty:.0 ~ 4.0 /s TP: C 以上 or higher: :.0 ~.0 /s 0±0 0±0 40 ~ 00s 4 max. 0 ~ 40s Soldering time (s) 半田付け時間 (s) Refrain from causing vibration of the product during the reflow. The number of reflows shall be once (no mounting of the reverse side). * Eutectic solder may be used so far as within the above profile conditions.. ibration and impact tests ibration 0 to Hz Total amplitude.mmp-p (H for each of three directions) Sweep time minutes Impact cceleration 00G ( times for each of directions, total 8 times) Impact time ms 0 BDD00

11 .Watt BL Series 4. Cleaning This product is not for immersible cleaning. Use of no-clean flux is recommended.. Precautions for use To ensure user s safety, check specifications before using the product and always observe the following precautions for use. This product is intended for use in general electronics equipment (office equipment, communication equipment, measurement equipment). Do not use the product for medical equipment, nuclear equipment, trains, etc., whereby human life or property may be directly affected by damaged product. Consult with us for any use other than for such general electronics equipment. Minor changes and component parts changes that do not affect contents of the specifications will be made due to characteristic improvement of the product and other reasons without prior notice. This product is not suitable for parallel operation. Do not use connectors and sockets for mounting the product. Contact resistance may have an adverse effect on the performance. Use the soldering method for mounting on the printed circuit board. This equipment has a built-in over current protection circuit but avoid a prolonged short circuit which may lead to failure. This product may be damaged if used under nonstandard electrical conditions or nonstandard environmental conditions including temperature. Ensure use within the standards. void using this product in a place that generates corrosive gas or is dusty. This product may be damaged by static electricity. Make sure that the workplace is guarded against static buildup and static electricity on operators by use of proper grounding. fuse mechanism is not built in this product. Connect a fuse suitable in terms of blowout characteristics and I t characteristics to + input line to guard against excessive input current under abnormal circumstances. llow enough capacity in the power supply for a fuse to blow. This product has no built-in function for over voltage protection. This product does not come with a test report.. Warranty The warranty term of the product is one year after shipment. Should the product become defective within the warranty period due to our design or workmanship, the product will be repaired free of charge or replaced. However, this warranty does not cover products which have been subjected to unauthorized inner modifications, etc. The scope of our warranty is limited to that of the said product.. Contact If you have any further technical questions for this product, please contact us. info@bellnix.com URL: BDD00

Line regulation Refer to Table 1 (Rated output, Input voltage varying in the range of Table 1) Load regulation

Line regulation Refer to Table 1 (Rated output, Input voltage varying in the range of Table 1) Load regulation Ultralow Noise, Ultracompact, Isolated type.watt BLA0 Overview Our BLA series isolated-type DC-DC converters feature a small package (4x0.x9.mm) and light weight (.g) capable of.w output. As ultralow noise