BSV BELLNIX | Alldatasheet
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High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series Bellnix DC-DC Converter BDD20150226 BSV Series is a small (33×22.5×7mm), 31.35W output power step-down DC-DC converter. With ultra-low output voltage from 0.8V, it can support the latest FPGA, DSP, ASIC applications. High efficiency and ultra-high-speed response with synchronous rectification have been achieved along with space-saving without external parts. This product will exceed your expectations in all aspects. ■ Features ･Output Voltage Accuracy ±3.0% ･Amazingly miniaturized ･Ultra-high Efficiency 92% ･Operating Temp Range -40ºC to +85ºC ･Ultra Compact, High Power Density ･High Reliability, High Performance ･Non-isolated type Converter ･Use of the Latest Power-IC ･Built-in Over Current Protection Circuit ･Synchronous rectification ･ON/OFF Control ･RoHS Compliant ･High-speed Response ･Short-circuit, Over Current Protection Circuit ･External Capacitor Not Required ･Adjustable Output Voltage ･Heat Sink Not Required ･DIP, SIP Package ■ Model/Rating Table 1 Models BSV Series Input V Vdc Output V Vdc Output I A Line Reg. %(typ.) Load Reg. %(typ.) Ripple Noise mVpp(typ.) Efficiency %(typ.) Package BSV-3.3S9R5 5.0V (3.0 to 5.5) 3.3V (0.8 to 3.3) 0 to 9.5 0.5 0.5 30 92 SIP BSV-3.3S9R5D DIP Note 1: Unless otherwise specified, measured at input voltage 5.0V, output voltage 3.3V, rated output current and ambient temperature 25ºC±5ºC. Note 2: Efficiency is measured at input voltage 5.0V, output voltage 3.3V, rated output current and ambient temperature 25ºC±5ºC. Note 3: Potential difference of 0.7V or more is required between input voltage and output voltage. Vin(V)-Vo(V) ≧ 0.7V Note 4: Ripple noise is measured at 20MHz bandwidth. Note 5: Depending on the ambient temp. conditions, temperature derating and air flow cooling may be required. ■ Specifications Table 2 Input voltage range Refer to Table 1 Rated input voltage 5.0V Rated output voltage 3.3V Output voltage initial setting 3.3V (When Trim pin is open) Adjustable output voltage range Refer to Table 1 Output voltage accuracy ±3.0% (±0.099V) 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 voltage, load varying from 0 to 100%) Temp. regulation ±0.02%/ºC typ. (Rated input/output, operating temp varying from -40ºC to +55ºC) Ripple noise Refer to Table 1 (Rated input/output, measurement frequency bandwidth 20MHz) Efficiency 92% typ. (Rated input/output, refer to Table 1) Turn-on Rise time 1.0ms typ. (Resistance load) Max. output load capacity 10000µF max. Over current protection Yes Output over voltage protection None Remote ON/OFF control Yes P-Good output Yes (Only BSV-3.3S9R5D) Operating temp range Operating temperatures -40ºC to +85ºC (Refer to temp derating described separately) Storage temp range Storage temperatures -40ºC to +85ºC Humidity range 20% to 95% R.H. (Max. wet bulb temp 35ºC with no condensation) Storage conditions Below 30ºC/60% R.H. before mounting the converter Cooling conditions Refer to temp derating shown separately Vibration 5 to 10Hz total amplitude 10mm (3 directions, 1 hour each), 10 to 55Hz acceleration 2G (3 directions, 1 hour each) Impact Acceleration 20G (3 times for each of 3 directions), Impact time 11±5ms Weight 5g typ. Outer dimensions SIP type : W=24.0 L=33.0 H=6.0 (mm) (For dimensional details, refer to the shape and dimensions shown separately) DIP type : W=22.25 L=33.0 H=7.0 (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.
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 1. Scope These specifications shall apply to the DC input, non -isolated type DC -DC converter BSV-3.3S9R5 Series 2. Model/Rating Model name Rated input voltage Rated output Shape Remarks BSV-3.3S9R5 DC5.0V 3.3V, 9.5A SIP BSV-3.3S9R5D DC5.0V 3.3V, 9.5A DIP Unless otherwise mentioned in these specifications, input shall be rated input, output shall be rated output, and ambient temperature shall be 25ºC±5ºC. 3. Environmental conditions 3-1 Temperature range In operation -40ºC to +85ºC (Derating required) In storage -40ºC to +85ºC 3-2 Humidity range In operation 20 to 95% R.H. (However, max. wet bulb temperature 35ºC, no condensation) In storage 20 to 95% R.H. (However, max. wet bulb temperature 35 ºC, no condensation) Note) For storage before mounting, store in a place below 30ºC and 60% R.H. 4. Specifications & Standards This product is RoHS compliant. 4-1 Input characteristics Item Specifications & Standards Conditions BSV-3.3S9R5 BSV-3.3S9R5D Input voltage +3.0 to 5.5V (Rating 5.0V) *1 Input current 7A typ. 7A typ. Upon rated input and rated output Standby current 1.0mA max. Vin=5.0V, when short-circuiting On/Off pin and GND *1 Input voltage to be set higher than output voltage by 0.7V or more. (Vin≧4.0V when Vout=3.3V）
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 4-2 Output characteristics and functions *2, *3 Item Specifications & Standards Conditions BSV-3.3S9R5 BSV-3.3S9R5D Rated output voltage 3.3V Output voltage accuracy 3.3V±3% (±0.099V) Adjustable output voltage range 0.8V to 3.3V By external resistor Output current 0 to 9.5A Derating required to 5.5V Load regulation 0.5% typ. 1.5% max. Load varying from 0 to rating Temperature regulation ±0.02% / ºC typ. Temperature varying from -40 to +55 ºC Efficiency 92% typ. (Io=9.5A) 94%typ. (Io=6A) Upon output of rated current Ripple noise 30mVp-p typ. 100mVp-p max. BW=20MHz Over current protection circuit Operate at 105% or above, auto restart type Over voltage protection circuit None Under voltage lock out Yes Activation voltage: 2.84V±0.1V Deactivation voltage: 2.78V±0.1V ON/OFF control ON when open (2.6V or more) OFF when short (0.65V or less) Upon input of 3.3V ON when open (3.75V or more) OFF when short (0.9V or less) Upon input of 5.0V P-Good threshold voltage ±72mV (58 to 86mV) When Vout < 1.2V ±6.1% (4.8 to 7.1%) When Vout≧1.2V P-Good low level voltage 0.4V max. Sink current 4mA max. Turn-on Delay Upon activation by input voltage: 1.8 to 2.8ms Upon activation by On/Off pin: 40 to 100μs Turn-on Rise 1.0ms typ. Resistance load P-Good blanking time 4ms typ. Upon activation only Max. output capacitive load 10000μF max. *2 With the measurement circuit of 4-3, *3 Unless otherwise specified, measured at 5.0V input voltage, 3.3V output voltage, 9.5A output current, and 25ºC±5ºC ambient temperature.
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 4-3 Measurement circuit Vin On/Off +Vin +Vout Trim Load BSV-3.3S9R5 シリーズ GND SW Open =ON Short=OFF R1:Vout Down設定抵抗 V A A V ｵｼﾛｽｺ-ﾌﾟ (OSC) オシロスコープ （リップル･ ノイズの測定） Cx Rx 同軸ケーブル: 50Ω 1.5m Rx: 51Ω Cx: 0.1μ F 2,3,4 5,6,7,8 9,10,11 (NC) (NC) (13,14,15) (22,24)(23) (P-Good) ※：Pin番号：13,14,15,22,23,24はDIP型のみ 5. Block diagram control On/Off Vref Vfb POWER IC GND 7,8 Trim +Vout 9,10,11 +Vin 2,3,4 On/Off GND 5,6 P-Good(P-Good) (23) Series R1: Vout Down Setting Resistor Oscilloscope (Measurement of ripple noise) Coaxial cable Pin No.13, 14, 15, 22, 23, 24 are for DIP type only Oscilloscope (OSC)
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 6. Temperature derating The product requires placement on PCB with good airflow. If this product is to be used in an ambient temperature of +25 ºC and over, implement the following temperature derating before use. BSV-3.3S9R5 temperature derating BSV-3.3S9R5D temperature derating -30 -20-40 0 10-10 30 4020 50 70 8060 90 出力電流[A] 周囲温度[℃] ：風速0.0[m/s] 出力電圧3.3[V] 入力電圧5.0[V] ■通電条件 ：風速1.0[m/s] ：風速2.0[m/s] -30 -20-40 0 10-10 30 4020 50 70 8060 90 出力電流[A] 周囲温度[℃] ：風速0.0[m/s] 出力電圧3.3[V] 入力電圧5.0[V] ■通電条件 ：風速1.0[m/s] ：風速2.0[m/s] Test conditions Input voltage 5.0[V] Output voltage 3.3[V] Ambient temperature [ºC] Output current [A] Wind velocity Wind velocity Wind velocity Test conditions Input voltage 5.0[V] Output voltage 3.3[V] Ambient temperature [ºC] Output current [A] Wind velocity Wind velocity Wind velocity
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 7. Outer dimensions and description of pins 7-1 Shape and dimensions of BSV-3.3S9R5 (SIP type) 7-2 Shape and dimensions of BSV-3.3S9R5D (DIP type) 0.25 22.25±0.6 0.5 8.0 max. 3.5±1.5 P2.54×11=27.94 33max C/L 21.5 1324 7-2. Display, dimensional tolerance, etc. Pin Function 1 on/off
2 Vin
3 Vin
4 Vin
5 GND
6 GND
7 GND
8 GND
9 Vout
10 Vout
11 Vout
12 Trim
23 P-Good
0.25 1.0typ 4.0typ 6.0max 0.833max 3.5 ±1.5 21.5(+1,-0.5) P2.54×11=27.94 0.5 24max ・Unit: mm ・Dimensional tolerance (unless specified) ±0.5 ・Weight = 5g typ. ・Lot No. display: (1)(2)(3) (1) The last digit of A.D. (2) Manufacturing month (Oct/Nov/Dec = O/N/D) (3)Production code (may not be indicated) Pin Function 1 on/off
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 8. Usage information 8-1 Standard connection diagram Vin 2,3,4 9,10,11 Load 5,6,7,8 SW R1: Vout Down設定抵抗 (23) +Vin (P-Good) On/Off GND Trim +Vout BSV-3.3S9R5 シリーズ Open=On Short=Off C1 C2 Note1 : Keep ON/OFF pin open when not using ON/OFF control. Note2 : Keep Trim pin open when not using adjustable output. Note 3: P-Good (23pin) is a function for BSV-3.3S9R5D (DIP type) only. Recommended capacitor C1 = 0μF to hundreds of μF C2 = 0μF to 200μF typ. 10000μF max. C1: Not required as long as impedance is very low and lines between +Vin side and the converter are connected thick and short. For high impedance, adding a capacitor of low ESR such as an organic semiconductor solid capacitor or a multi-layered ceramic capacitor is recommended. C2: Not required due to an internal output capacitor. A multi -layered ceramic capacitor placed on the load side will be recommended to satisfy electrical characteristics (to reduce ripple noise). Series R1: Vout Down Setting Resistor
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 8-2 Turn-on Rise characteristics Amount of start -up time required for activating output voltage and P -Good signal after meeting start-up conditions shall be as illustrated in the following figure. Note 1) Apply Vin of the converter at the speed faster than 5V/s. 入力電圧 on/off端子 出力電圧 P-Good端子電圧 起動開始電圧 起動開始電圧 P-Good blanking time 4ms typ. Turn-on Delay 2.2ms typ. Turn-on Rise 1.0ms typ. Turn-on Rise 1.0ms typ. P-Good blanking time 4ms typ. * In the measurement circuit of 4-3 8-3 ON/OFF Control The ON/OFF Control function enables users to control ON/OFF of the output voltage without inputting or cutting it off. On/Off pins are connected inside to +Vin pin with a 22kΩ resistor. Leave the On/Off pin open when ON/OFF Control is not used. Between On/Off pin (No.1 pin) and GND (No.5 to 8 pin) Open … Output ON Short (0 to 0.9V 0.3mA max.) … Output OFF +Vin 2,3,4 GND or 5,6,7,8 On/Off 22kΩ Input voltage Start-up voltage ON/OFF pin Output voltage Start-up voltage P-Good pin voltage
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 8-4 Adjustable method for output voltage Keep Trim pin (12pin) OPEN, when using output voltage at 3.3V without adjustment. Output voltage may be adjusted between 0.8 and 3.3V by connecting a resistor between Trim pin ( 12pin) and GND pin (5 to 8pin). Wiring fo r Trim pin should be short and straight preferably when using adjustable output voltage feature. If noise appears on the pin, it causes mal-function. The below formula should be referred for external resistance. It is important to check output voltage and adjust resistance in an actual device. When setting output voltage between 0.8V to 3.3V 321421
42 RVoutRIRRR
(Ω) R1=51Ω, R2=182Ω, R3=24kΩ, R4=94.3kΩ, I1=0.02733mA, Vout=Desired output voltage (V) e.g. Desired output voltage (V) Rx calculated value (kΩ)
3.3 OPEN
2.5 271.0(270+1) 2.0 121.1(120+1.1) 1.8 89.5(82+7.5) 1.5 54.6(51+3.6) 1.2 30.0 1.0 17.0(15+2) 0.8 6.2 +Vout Trim GND Rx 9,10,11 5,6,7,8
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 8-5 P-Good pin Output state of the converter may be obtained by using P -Good pin. This pin is pulled up internally to +Vin pin with 47kΩ resistor. When output voltage (+Sense pin voltage) goes out of the converter’s pre-set range, P-Good pin becomes low. ・ Vout < 1.2V : | Output voltage-Set voltage | ≦72mV typ. -> High ・ Vout ≧1.2V: | Output voltage-Set voltage | ≦6.1% typ. of set voltage -> High However, even if the above conditions are fulfilled, output voltage may decrease to Low under the following circumstances. ・ Potential difference between input and output: Vin - Vout < 0.7 ・ Input voltage less than 3V ・ Output current in over current state ・ IC’s junction temp exceeding 150ºC typ. +Vin 2,3,4 GND 5,6,7,8 P-Good 47kΩ 9. Protection against reverse connection for input power supply (example) This product is a DC -DC converter with non -isolation between input and output to have a positive polarity step down to a positive polarity. This product will be damaged if erroneously connected with reverse input polarity. To cope with possible reverse connection, add a protection circuit as shown in the following figure. The following is an example using a fuse and a diode. 2,3,4 9,10,11 +Vout 5,6,7,8 FUSE +Vin Trimon/off 12 GND D1+Vin Load BSV-3.3S9R5 ｼﾘｰｽﾞ Series
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 10. Over voltage protection circuit (example) This product has no built-in function for over voltage protection. If the product is damaged for any reason, DC input voltage will be output as is. To prepare for the damage by over voltage mode, add an input cutoff circuit as shown in the following figure. Load 2,3,4 9,10,11 +Vout 5,6,7,8 BSV-3.3S9R5 ｼﾘｰｽﾞ FUSE +Vin Trimon/off GND 過電圧 検出回路+Vin SCR Note 1: ON/OFF control does not function in case of overvoltage mode damage. Note 2: ON/OFF function on the power supply side can be used, if any. Note 3: Allow enough capacity for DC power supply for a fuse to blow. 11. Mounting conditions Observe the following conditions for soldering temperature and time as well as for the storage before mounting. Flow mounting is not possible for this product. Observe the following conditions for soldering temperature and time. 1) Soldering iron 340 ºC to 360 ºC Within 3 seconds 2) Dip solder bath 240 ºC to 260 ºC Within 10 seconds 12, Vibration and impact tests Vibration: 5 to 10Hz Total amplitude 10mm, 10 to 55Hz Acceleration 2G (3 directions, 1 hour each) Impact : Acceleration 20G (3 directions, 3 times each) Duration 11±5ms 13. Cleaning This product is not for immersible cleaning. Use of no-clean flux is recommended. If cleaning is absolutely necessary, using a brush only , hand-wash the solder surface with Isopropyl alcohol (IPA). After cleaning, allow sufficient drying before use. Series Over Voltage Detection Circuit
High-Speed Response Non -Isolated POL DC -DC Converter 9.5A BSV Series BDD20150226 14. 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. ・ This product is not suitable for serial or parallel operation. ・ Do not use conn ectors 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 standard s. ・ 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 thi s product. Connect a fuse to +input line to guard against excessive input current under abnormal circumstances. Allow enough capacity for power supply for a fuse to blow. ・ This product has no build -in function for over voltage protection. If over voltage oc curs due to anomalies in the module, input voltage is output, as is, in the same mode, which may result in fumes and ignition. To prevent this from occurring, always add an over voltage protection circuit. ・ This product does not come with a test report. 15. 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. 16. Miscellaneous matters Any doubt arising out of or in connection with these specifications shall be determined upon mutual consultation between the parties concerned. 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