BYH BELLNIX | Alldatasheet
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Ultra small size, Adjustable output voltage type high voltage power supply 0.2W Mid-high voltage DC-DC converter 0V to 100V, 0V to 200V BYH Series The BYH series is an ultra small type mid-high voltage DC-DC converter which has stored 0 to 100V and 0 to 200V in a 24pin-IC. Using the latest SMT (surface mount technology), the high voltage technology is now 1/3 to 1/4 of the original product. ■ Features ･Achieved 24pin-IC size ･5 sided metallic shield ･Output voltage 0 to 100V and 0 to 200V･Low ripple noise of 10mVp-p ･Output capacity 0.2W ･Bar in tests 100% conducted ･Over current protection ･Adjustable voltage with external voltage ･Worlds ultra small size, device achieved･Isolation withhold between P-S, DC250V ･Low cost ･High reliability and long life ■ Model/rating ■ Specifications Note 1: The output voltage is controlled by the Vcont voltage being impressed. Connect an external voltage to impress to the the Vcont pin to control the output voltage. When Vcont voltage =0V, the output voltage (output residual voltage) must be within 0.5% of the max output voltage (when input/output is rated) ■ Test curcuit ■ Block diagram BHV20110405 BYH05 series : E1=4.75V～5.25V､E2=0V～3V BYH12 series : E1=11.0V～16.0V､E2=0V～10V Output voltage (Vdc) Case 4.75～5.25 0 ～ 100100 ± 4% 0 ～ 2 Y Adjustable output voltage (Vdc) (note 1) Output current (mA) Output capacity (W) Input current (mA) typ Input voltage (Vdc) 0.2 90 10BYH05-100S02 BYH12-100S02 BYH05-200S01 BYH12-200S01 11.0～16.0 4.75～5.25 11.0～16.0 200 ± 4% 0 ～ 200 0 ～ 1 0.2 0.2 0.2 Y Y Y 0 ～ 2 0 ～ 1 0 ～ 100 0 ～ 200 100 ± 4% 200 ± 4% BYH series Ripple noise (mVp-p) typ Input fluctuation Load fluctuation Temp fluctuation Over current protection Output voltage accuracy Output voltage control (1) Output voltage control (2) Usage temp range Storage temp range Usage humidity range Isolation withhold Isolation resistance Floating output 8％ typ.(Load current fluctuation from 0%～100%) MTBF anticipated value ±0.5％ typ.(Temp. fluctuation from -10℃～+50℃.) 1,400,000H min.(Calclulated using the Bellnix MTBF calculation graph -10℃～+60℃(Temp derating required for 50℃ and higher) Between primary and secondary DC250V 1 min. (continuous withhold : DC250V) 20%～95%RH( no dewing) Between primary and secondary also between case DC500V 100MΩ min. Floating output until voltage DC250V. Therefore either the minus or plus can be in contact. -25℃～+85℃ BYH05 series : Exxternal voltage controlled with 0V～+3V Below ±4%(Rated output, rated load, and the Vcont 3.0V or 10.0V) Droop type characteristic, auto restart circuit activates at 105% or more BYH12 series : External voltage controlled with 0V～+10V +Vin +Vout -Vin -Vout + + Vcont BYH +Vin -Vin +Vout -Vout 24 13 DC-AC switch circuit High voltage oscillation Trance Commutation flatness Voltage detection circuitExternal voltage 10KΩ （Isolation） Output control Over current protection + Vcont
■ Model/Dimensions/Pin Configuration (Y case) Weight : 14g typ. Units : mm ■ Standard usage ■ Over current protection The BYH series has an over current protection to protect against over load and load shortage. When over load or load shoratage occurs, if the output voltage is lowered an activated, and the reason has been removed, the output will auto recover. The BYH series does not need any external parts, however the longer the power supply and converter distance is, and thinner the input line is to the input filter, the higher the impedance will be, and connected a capacitor to CI is recommended. As long as the capacitor is connected, the design should be the converter's side lead inductance is lowered. Bellnix High Voltage DC-DC Converters 2 BHV20110405 N.P 5typ. Φ0.6 2.33 5.08 20.42 15.24 22.86 2.33 32.6 10.3 0.5 2.54 9.8 22 13 22.86 2.0 Pin Feature Units:mm (1/1) -Vin -Vout +Vout Vcont +Vin E1 Load +Vin +Vout -Vin Vout Vcont BYH 100 Output voltage set value (%) Output current (lo) 100%0 100% output 50% output Over current protection characteristic
■ Setting output voltage/adjusting information The BYH series output voltage can be adjusted using an external voltage. ■ Recommended pattern (Seen from the parts surface)
- The voltage impressed on Vcont should not exceed 1) The BYH series uses a metallic case. When using a double
- (Vcont+11%) mounting PCB, the wiring to the converter should be done on
- Connect the external control voltage common to the the soldering surface. Also, this converter will have a high voltage -Vin (1pin). so make sure to create enough creepage distance.
- The fluctuation rate and ripple noise of Vcont pin will be 2) When using a double mounting PCB, make the high voltage output determined by the output. pin's surface as small as possible. 3) The metallic case does not need to be in contact with anything else. However, if you would like to bring the metallic case into contact, it should be used to lower the anti ground impedance. BHV20110405 Load=Open Load=50KΩ BYH12-100S02 100% 80% 60% 40% 20% 0V 2V 4V 6V 8V 10V Output Voltage Output control voltage Load=50KΩ BYH05-100S02 100% 80% 60% 40% 20% Load=Open 0V 1V 2V 3V 4V 5V Output Voltage Output control voltage Load=200KΩ BYH05-200S01 100% 80% 60% 40% 20% Output Voltage Load=Open Output control voltage 0V 1V 2V 3V 4V 5V Load=Open Load=200KΩ BYH12-200S01 100% 80% 60% 40% 20% 0V 2V 4V 6V 8V 10V Output Voltage Output control voltage 27.94 22.86 15.24 5.08 Diameter: φ1.0～1.2 E1 Load +Vin +Vout -Vin -Vout Vcont BYH
■ Temp derating ■ When lowering the output noise even more When using the product where the ambient temp is The BYH series does need any external parts, however higher than 50℃, follow the derating graph below. to lower the output noise even farther, connect a Increase the load resistor as the temp increases. capacitor C2 like the figure below. When lowering the output noise eve more, keep in mind the input/output wiring, creepage and area distance, while keeping the wiring as thin as possible and the C2 near the Load in the layout. ■ Preventing inverse connections Points! The converter may break if the polarities are reversed. 1) When choosing a capacitor, choose one which is a If there is a possibility in which the connections maybe high frequency characteristic capacitor. reversed, connect a diode and fuse like below. 2) Earth (COMMON) line should be bundled and kept small while the wiring pattern is thick and short. 3) The capacitor which is connected to the output side should be able to withhold the pressure, and connected to the load side. At this time, the capacitor lead should be shortened. Also, when the load response time is a problem, please be aware of the time constant. ■ Recommended solder conditions Soldering conditions for each part is as follows: 1) Using a soldering iron 340～360℃ 5 sec. 2) Using a soldering tub 230～260℃ 10 sec. ■ About washing the product This product can not be washed as a whole. However, when there is a need to wash the product, use an IPA to wash only the soldered surface with a hand brush. Bellnix High Voltage DC-DC Converters 4 BHV20110405 100 -20 -10 0 +10 +20 +30 +40 +50 +60 Output derating rate Ambient temp(℃) The product may start up in this area, however reliablity is not insured. (%) E1 Load +Vin +Vout -Vin -Vout Vcont BYH C1=22～47μF C2=0.047～0.1μF 12V Fuse BYH +Vin -Vin