BLA12

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Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 Our BLA series isolated-type DC-DC converters feature a small package As 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 - Adjustable Output Voltage - ON/OFF Control - Dual power supply usable as single power supply - Withstand voltage AC500V - 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 +85°C (Temperature derating required) - RoHS Compliant ■ Model/Rating Table 1 Models BLA12 Series Input V Vdc Output V Vdc Output I mA Line Reg. mV(max.) Load Reg. mV(max.) Ripple Noise mVpp(typ.) Efficiency %(typ.) BLA12-05S30 9 to 18 5 0 to 300 20 40 5 78 BLA12-12S12 12(15) 0 to125(100) 40 100 5 81 BLA12-12W06 ±12(±15) 0 to 60(50) 80 600 5 82 Note 1: Output voltage in parentheses is when Vadj and –Vout are short-circuited. Note 2: Output current in parentheses is at the maximum output voltage. Note 3: Ripple noise and efficiency are at 12V input voltage and load rating. Note 4: Ripple noise is measured at 20MHz bandwidth, with a multi layered ceramic capacitor with 10μF at input and 0.1μF at output. ■ Specifications Table 2 Input voltage range Refer to Table 1 Rated output voltage 5.0V±3%, 12V±3% , ±12V±5% (When Vadj terminal is open) Line regulation Refer to Table 1 (Rated output, Input voltage varying in the range of Table 1) Load regulation Refer to Table 1 (Rated input/output, Load varying from 0 to 100%, ±output is upon balanced load) Temperature regulation 40mV typ.(5.0V model), 100mV typ. (12V model), 150mV typ. (±12V model) (Rated input/output, for within ambient temperature range with 100% load at temperature derating) Ripple noise Refer to Table 1 (Rated input/output, common temp, measurement frequency bandwidth 20MHz) Efficiency 78% to 82% typ. (Rated input/output, Common temp., Refer to Table 1) Over current protection Operate at 105% or above of rated load current. Auto restart type. Over voltage protection None Under Voltage Lock Out Yes Input over current protection None Remote ON/OFF control Between 2Pin (-Vin) and 3Pin (ON/OFF): Output is ON when open, output is OFF when short. Standby current 6mA max. Withstand voltage Between input and output, input and case, output and case: One minute at AC500V. Insulation resistance Between input and output, input and case, output and case: 50MΩ or more (at DC500V) Capacitance between P and S Approx. 80 to 140pF (depending on the model) Operating temp range Operating temperatures −40°C to +85°C (Refer to temp derating described separately) Storage temp range Storage temperatures -40°C to +85°C Humidity range 20 to 95%R.H. (Max. wet bulb temp 35°C with no condensation) Storage conditions Below 30°C/60% R.H. before mounting the converter Cooling conditions Natural cooling (install in a well-ventilated place) Vibration 10 to 55Hz Total amplitude 1.52mmp-p (2H for each of three directions) Sweep time 15 min Impact Acceleration 100G (3 times for each of three directions, total 18 times) Duration 6ms Weight 3.2g typ. Outer dimensions W=14 L=20.3 H=9.7 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.

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 1. Scope These specifications shall apply to the DC input, isolated type DC-DC converter BLA12 series. 2. Model/Rating Model name Rated input voltage Rated output Shape Remarks BLA12-05S30 DC12.0V 5.0V, 300mA SMD BLA12-12S12 12.0V, 125mA BLA12-12W06 ±12V, each 60mA Unless otherwise mentioned in these specifications, input shall be rated input, output shall be rated output, and ambient temperature shall be 25°C±5°C. 3. Environmental conditions 3-1 Temperature range In operation −40°C to +85°C (Derating required) In storage −40°C to +85°C 3-2 Humidity range In operation 20 to 95%R.H. (However, max. wet bulb temperature 35°C, no condensation) In storage 20 to 95%R.H. (However, max. wet bulb temperature 35°C, no condensation) Note) For storage before mounting, store in a place below 30°C and 60% R.H.

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 4. Specifications & Standards This product is RoHS compliant. 4-1 Input conditions and output characteristics Model name Input voltage V Output voltage V Output current mA Output voltage stability*2 Output ripple noise *3 mVp-p typ. / max. Efficiency*4 typ. Input mV max. Load mV max. Temp. mV typ. BLA12-05S30 9 to 18 5±3% 0 to 300 20 40 40 5/ 15 78 BLA12-12S12 9 to 18 12±3% 0 to 125 40 100 100 5/ 15 81 BLA12-12W06 9 to 18 ±12±5% 0 to 60×2 80 600 150 5/ 15 82 *1 With the measurement circuit of 4-4. Unless otherwise mentioned, rated input and output, and ambient temperature shall be 25°C±5°C. *2 Input: For fluctuations of input voltage = min. to max. Load: For fluctuations of output current = 0 to rated. Temperature: For fluctuations of ambient temperatures = -40 to Tamax. For within ambient temperature range with 100% load at temperature derating of 4- 3. A t wo output product is when + output current and – output current are equal. *3 Measured frequency bandwidth 20MHz. At both ends of external capacitor (C2, or C4, C5). *4 At rated input voltage and maximum output current. 4-2 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 BLA12-05S30 0 to 100μF *1 — BLA12-12S12 0 to 47μF *1 — BLA12-12W06 0 to 22μF *2 0 to 22μF *3 *1 Total of C2 and C3 in the Standard Connection Circuit of 6.( 1) *2 Total of C2 and C4 in the Standard Connection Circuit of 6.( 2) *3 Total of C3 and C5 in the Standard Connection Circuit of 6.( 2)

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 4-3 Temperature derating BLA12-05S30 BLA12-12S12 BLA12-12W06 自然空冷 100 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 負荷率（%） 周囲温度(℃) Note) a t rated output 4-4 Measurement circuit SW2 同軸ケーブル: 50Ω, 1.5m R1: 51Ω C6: 0.1μF オシロスコープ （リップル･ ノイズの測定） 7 +Vout 5 -Vout Load 2-Vin +Vin +Vin BLA-S SeriesON/OFF SW1 A V A SW1 Short = 出力OFF Open = 出力ON C2: 0.1μF（積セラ） Open:Vout=5V,12V C1: 10μF（積セラ） 7 +Vout 4 -Vout LoadC4 2-Vin +Vin +Vin BLA-W SeriesON/OFF SW3 A Vadj SW4 V A SW3 Short = 出力OFF Open = 出力ON C4, C5: 0.1μF（積セラ） C5 V Load SW4 Short: Vout = ±15V Open: Vout = ±12VV C3 C3: 10μF（積セラ） Short:Vout=5V→6V 12V→15V Vadj SW2 Open = Output ON Short = Output OFF Open = Output ON Short = Output OFF (Multi-layered ceramic capacitor) (Multi-layered ceramic capacitor) (Multi-layered ceramic capacitor) (Multi-layered ceramic capacitor) Coaxial cable: Oscilloscope (Measurement of ripple noise) Natural cooling Ambient temperature (°C) Load rate (%)

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 4-5 Additional functions Item Specifications & Standards Conditions Over current protection circuit Operate at 105% or above, auto restart type. Over voltage protection circuit None Adjustable output voltage range 4.75 to 6.0V (BLA12-05S30) 11.4 to 15V (BLA12-12S12) ±11.4 to ±15V (BLA12-12W06) By external resistor Refer to 7-3 ON/OFF control Open for output ON Low (0 to 0.3V, 4mA max.) for output OFF Refer to 7-1 4-6 Withstand voltage and Insulation resistance 1) Withstand voltage Between input and output, input and case, output and case: One minute at AC500V 2) Insulation resistance Between input and output, input and case, output and case: 50MΩ or more (at DC500V) 5. Outer dimensions and description of terminals 5-1 Shape and dimensions Bellnix DC-DC CONVERTER BLA12-05S30 20.3±0.5 14.0±0.59.7 max. 3.81 Side View Bottom View 2.54×3 17.3 1.5±0.1 1.8±0.2 CL CL Top View 会社ロゴ 製品型名 Lot No. 1ピンマーク 0.25 min. 3 4 3.81 Pin Function BLA-S BLA-W 1 +Vin +Vin 2 −Vin −Vin

3 ON/OFF ON/OFF

4 NC −Vout

5 −Vout Com

6 Vadj Vadj

Materials of terminals and case Plating: Gold plating after nickel plating - Unit: mm - Dimensional tolerance (unless specified):±0.3 - Weight: 3.2g typ. - Tolerance on terminals 0.2 mm max. (Max. lifting of the terminal part when placed on a plane)

1 Pin mark

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 5-2 Recommended footprint dimensions 2.6 2.54×3 17.3 3.81 3.81 1.9 1 7 CL CL Note) Recommended dimensions are shown above. Use your design standard for your specific design. 5-3 Lot indication 2 Ｄ 2 製造管理密番（無表示の場合もあり。) 製造月（1～9月=1～9、10月=O、11月=N、12月=D) 製造年（西暦末尾1桁） (2012年 8月製造) (2012年12月製造) 6. Standard connection circuit 6-1 BLA-S series 7+Vin -Vin ON/OFF SW1 +Vin Load SW2 -Vout Vadj +Vout BLA-S Series SW1 Open = 出力ON Short = 出力OFF C1: 4.7μF SW2 Vout = 5V→6V 12V→15V Short: Open: = 5V , 12VVout C2: 4.7μF Fuse C1 C2 C3 C3: 0.47μF 6-2 BLA-W series ON/OFF SW1 C5C3 Load SW2 -Vout Vadj +Vout BLA-W Series SW1 Open = 出力ON Short = 出力OFF C2 C4 Load Common C1: SW2 Short: Vout = ±12V→±15V Open: Vout = ±12V C2, C3: C4, C5: 4.7μF 0.47μF 4.7μF +Vin -Vin +Vin C1 Fuse Note) This product has no built -in fuse. Always connect a fuse to the +Vin line. Allow enough capacity for power supply for a fuse to blow. Open = Output ON Short = Output OFF Open = Output ON Short = Output OFF (Manufactured in August 2012) (Manufactured in December 2012) Production code for manufacturing control (may not be indicated) Manufacturing month (Jan to Sep = 1 to 9, Oct = O, Nov = N, Dec = D) Manufacturing year (the last digit of A.D.)

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 7. Various functions 7-1 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 –Vin terminal (No. 2 pin) and ON/OFF terminal (No. 3 pin) Open (5V max.) : Output ON Short (0 to 0.3V 4mA max.) : Output OFF 7-2 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: 105% 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 30 seconds may result in damage, so resolve over current status within 30 seconds. Also, 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 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. or ON/OFF -Vin +Vin Output Current[%] Output Voltage[%] 100 1000

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 7-3 Output voltage adjustment 7-3-1 Short circuit Vadj and –Vout terminal Output voltage can be set at the maximum as per the following table by short -circuiting Vadj and –Vout terminals. In case of no variable output voltage, open the terminal. Output voltage for the connection of Vadj terminal Model name Between Vadj and –Vout terminals Open Short BLA12-05S30 5.0V 6.0V BLA12-12S12 12.0V 15.0V BLA12-12W06 ±12.0V ±15.0V 7 -3-2 Resistor adjustment control The output voltage is adjustable by inserting a resistor between Vadj terminal and +Vout terminal or –Vout terminal. To decrease the output voltage To increase the output voltage Model name To decrease the output voltage Output voltage: Vo[V], Connecting resistor: Rb[kΩ] To increase the output voltage Output voltage: Vo[V]，Connecting resistor: Ra[kΩ] BLA12-05S30 Vo = (2490 Rb + 7221) / (500 Rb + 1700) Rb = (7221 − 1700 Vo) / (500 Vo − 2490) Variable range: Vo=4.75V min. Vo = (2490 Ra + 7221) / (500 Ra + 1200) Ra = (7221 − 1200 Vo) / (500 Vo − 2490) Variable range: Vo=6.0V max. BLA12-12S12 Vo = (2996 Rb + 17643) / (250 Rb + 2605) Rb = (17643 − 2605 Vo) / (250 Vo − 2996) Variable range: Vo=11.4V min. Vo = (2996 Ra + 17643) / (250 Ra + 1175) Ra = (17643 − 1175 Vo) / (250 Vo − 2996) Variable range: Vo=15.0V max. BLA12-12W06 Vo = (10607 Rb + 67006) / (440 Rb + 12012) Rb = (67006 − 12012 Vo) / (440 Vo − 10607) Variable range: Vo=22.8V min. (±11.4V min.) Vo = (2652 Ra + 26977) / (110 Ra + 902) Ra = (26977 − 902 Vo) / (110 Vo − 2652) Variable range: Vo=30.0V max. (±15.0V max.) Note) If output voltage is made variable, use at the maximum power (1.5W) or less. If output voltage is made lower, do not connect R b to resistor which is less than Vo min. setting resistor value. 7 +Vout

6 Vadj

5 Com

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 7-4 Activation 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. Ambient temperature Range of activation and deactivation voltage -40 to 85°C 7 - 8.3V 8. 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. 9. Common mode noise reduction method (example) To reduce common mode noise of this product, connect a capacitor of 1000pF 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. 10. Input feedback noise reduction method (example) Input feedback noise can be reduced by designing a Pi filter at input side. Add as needed. 2 5 7+Vin -Vin +Vin Load -Vout +Vout BLA-S Series Fuse C1 C2 C3D1 2 5 7+Vin -Vin +Vin Load -Vout +Vout BLA-S Series Fuse C1 C2 C3D1 2 5 7+Vin -Vin +Vin BLA-S Series Fuse C2C1

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 11. 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. Note) This product is not suitable for parallel operation. Schottky diodes of low forward voltage are recommended for D1 and D2. 12. Soldering conditions Observe the following conditions for soldering temperature and time. Fl ow mounting is not possible for this product. Reflow method Reflow temperature profile In the case of Sn-3Ag-0.5Cu series solder A A' B' CB 半田付け時間(s) 部品表面温度(℃) Ty1 Ty2 TP 225 C B 1.0 ~ 5.0℃/s Ty1 ~ Ty2: 1.0 ~ 4.0℃/s 225℃以上: TP: Ty2: Ty1: 1.0 ~ 3.0℃/s 40 ~ 100s 170±10℃ 150±10℃ 245℃max. 20 ~ 40s A 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. 13. Vibration and impact tests Vibration 10 to 55Hz Total amplitude 1.52mmp-p (2H for each of three directions) Sweep time 15 minutes Impact Acceleration 100G (3 times for each of 3 directions, total 18 times) Impact time 6ms 2 5 7+Vin -Vin +Vin -Vout +Vout BLA-S Series Fuse 2 5 7+Vin -Vin -Vout +Vout BLA-S Series Fuse Load Soldering time (s) Parts surface temperature (°C) 225°C or higher:

Ultra L ow Noise, Ultra Compact, Isolated type DC- DC Converter b 1.5Watt BLA12 Series DC- DC Converter BDD20170524_B01 14. Cleaning This product is not for immersible cleaning. Use of no-clean flux is recommended. 15. 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.  Avoid 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.  A f use mechanism is not built in this product. Connect a fuse suitable in terms of blowout characteristics and I2t characteristics to + input line to guard against excessive input current under abnormal circumstances. Allow 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. 16. Warranty The warranty term of the product is one year after shipment. Should the product become defective within the warranty period due t o 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. 17. Contact If you have any further technical questions for this product, please contact us. E-mail: info@bellnix.com URL: http://www.bellnix.com