Basic characteristics data • Instruction manual
Contents
1. 5 4 A Oo i A S CT 3 28 3 9 A A cross section HN b eo A aE co an Fig 9 3 Taping dimensions of BRFS100 a t B B cross section ii 15 Modei h BRFS30 10 0 s a 14 2 97 BRFS40 11 5 A A cross section wi Fig 9 1 Taping dimensions of BRFS30 40 i 220 15 z g E 404 3 2 oo ww lt B X aa 0 50 05 gt 4 4 2h a ad a a a a a a a w2 BE A D 5 A A i jt Ho o gor B Model Tape Width a wi w2 B B cross section mm mm mm mm i BRFS30 40 56 100 57 4 1 0 61 4 1 0 BRFS50 50L 60 56 150 57 541 0 61 5 1 0 23 6 19 BRFS100 56 150 57 5 1 0 61 5 1 0 A A cross section Fig 9 4 Reel dimensions of BRFS Fig 9 2 Taping dimensions of BRFS50 50L 60 Please refer to specifications for the details of package informa tion BRES 152. Fig 8 4 Temperature measurement location BRFS50 50L Temperature measurement location Point A Point B m Fig 8 5 Temperature measurement location BRFS60 Temperature measurement location Point A Point B na Fig 8 6 Temperature measurement location BRFS100 COSEL Instruction Manual 240 15 440 4 Q 9 Package Information it a I EEE E E E EA 0 5 0 05 1 75 04 Please refer to a Fig 9 1 to Fig 9 4 for Package form Reel MThe packed number is 200 BRFS30 40 100 BRFS50 50L 60 A A 80 BRFS100 io bo gt bo gt 240 15 E 10 0 1 4204 a fa 0 5 0 05 lt B B B cross section S _ 36204 JASAKA E SRF SPOT CTP OPS oT
3. BRFS30 BRFS40 No VOUT Rraw No VOUT Riru 1 0 8 OPEN 1 0 6 OPEN 2 1 0 40 0KQ 2 1 0 30 0kQ 3 1 2 20 0kQ 3 1 2 20 0kQ 4 1 5 11 429kQ 4 1 5 13 3kQ 5 1 8 8 0kQ 5 1 8 10 0kQ 6 2 5 4 706kQ 7 3 3 3 2kQ Table 4 4 Calculation result of BRFS50 50L 60 100 No VOUT Ream 1 0 7 OPEN 2 1 0 46 6kQ 3 1 2 28 0kQ 4 1 5 17 5kQ 5 1 8 12 7kQ VOUT lt VOUT lt TRM TRM Load Riam Load TRM Rram GND GND Fig 4 4 Connecting BRFS30 40 Fig 4 5 Connecting BRFS50 50L 60 100 4 6 Softstart Start up sequence The adjustment of the rise time is possible by connecting Cseo OFF gt ON Jk mme Ceo BRFS SEQ RC GND Fig 4 6 Example of soft start circuit EWhen the voltage is applied to the terminal SEQ the output volt age tracks this voltage until the output reaches the set point volt age SEQ terminal voltage vs output voltage is calculated the fol lowing formula Avoid SEQ terminal voltage is set below the set voltage output by Rtrm the output voltage does not rise to set output voltage Maxi mum applicable voltage of terminal SEQ is Vin When the function is not used open terminal SEQ Cseo HF 0 284 Vo V 0 06 x T ms 0 6V lt Vo lt 2 0V Cseo H F 0 284 Vo V 0 047 x T ms 2 0V lt Vo lt 3 63V only BRFS30 Setting SEQ
4. The output ripple voltage may grow big by resonance with Co and ESL of the wiring if resonance frequency and switching frequency are close HRipple and Ripple Noise are measured as shown in the Fig 3 4 Co0 Co1 Co2 and Co3 is shown in Table 3 3 1mm mm 1mmimm lt gt lt 4 gt 4 gt i gt or o d VIN VOUT e e DC Co0 Cot Co2 Co3 Co4 input Load 5 GND GND a D B 2 50mm Oscilloscope T BW 20MHz L N R09 C 4700pF or 10000pF i 1 5m 502 Coaxial cable Fig 3 4 Measuring method of Ripple and Ripple Noise Table 3 4 Co0 Co1 Co2 and Co3 which is used in measuring No Model Co0 Col Co2 Co3 Co4 1 BRFS30 100 UF 100UF 100HF 2 BRFS40 100 UF 100UF 100HF 100HF 3 BRFS50 50L 60 100 HF 100UF 4 BRFS100 100HF 100HF 100HF 100HF BRFS 9 BRES CO EL Instruction Manual 4 Function 4 1 Overcurrent protection MOver Current Protection OCP is built in and works at 105 of the rated current or higher However use in an overcurrent situa tion must be avoided whenever possible The output voltage of the power module will recover automatically when the fault causing overcurrent is corrected When the output voltage drops after OCP works the power mod ule enters a hiccup mode where it repeatedly turns
5. VOUT Fig 4 7 SEQ gt Vout setting Fig 4 8 SEQ lt Vout setting not recommended With the voltage to input into SEQ pin you can control a start se quence of plural BRFS a The same time RC VOUT A BRFS A GND Ra VOUT B Cc b The same voltage dag tVOUTA bag VOUTB i SEQ BRFS A a BRFS B GND GND l 4 VOUT A VOUTB VacA BRFS 11 BRES CO EL Instruction Manual c The time lag VOUTA VOUT Bo r RC SEQ D BRESA BRFS B GND GND Fig 4 9 Example of sequence control BRES Hilf this function is unnecessary please make SEQ pin open 4 7 Power good By using PGOOD it is possible to monitor power supply whether normal operation or abnormal operation HPGOOD circuit is designed as shown in Fig 4 10 Sink current of PGOOD is 10mA max GND i Fig 4 10 Internal PGOOD circuit Voltage of PGOOD pin become low when over current protection circuit is work or output voltage is different from a set point more than 12 5 Wif this function is unnecessary please make PGOOD pin open 4 8 Sequence WFig 4 11 is a sequence chart of each function of BRFS Start up Power supply start voltage over current 6 3ms typ 4 5 z gt INPUT LASY 6 3ms max RC OFF RC
6. 000000 Fig 1 1 Pin connection of BRFS30 40 BOTTOM VIEW Table 1 2 Pin connection and function of BRFS50 50L 60 100 2 Connection for Standard Use Win order to use power supply it is necessary to wire as shown in Fig 2 1 and Fig 2 2 F1 S on _0 _0 VIN VOUT DC input Ci RC TRM Load SGND SND Rram Fig 2 1 Connection for standard use of BRFS30 40 F1 on oe oO VIN DC input CGis Load Fig 2 2 Connection for standard use of BRFS50 50L 60 100 l Reference 3 Wiring Input Output Pin 8 Derating Short the following pins to turn on the power supply Pin No Pin Connection Reference GNDORC VOUTH S GND S S only BRFS50 50L 60 100 OO VIN DC input Reference 4 3 Remote ON OFF GND GND DC input DC output 4 4 Remote sensing VOUT DC output Connect resistance to set the output voltage between TRM and VOUT DC output GND 6 GND GND DC input DC output Reference 4 5 Adjustable voltage range J VIN DC input Between input and output is not isolated SEQ Control of Start up time and turn The BRFS series handle only the DC input PGOOD Power good Avoid applying AC input directly It will damaged the power supply RC Remote ON OFF enep PES S Remote sensing Table 2 1 External part
7. 22 UF BRFS60 8x22 UF 4x22 UF BRFS100 8x22 UF 4x22 UF Cin is within 5mm for pins Make sure that ripple current of Cin is less than its rating When an impedance and inductance level of the input line become higher the input voltage may become unstable In that case the input voltage becomes stable by increasing Cin 3 Recommendation for noise filter Minstall an external input filter as shown in Fig 3 1 in order to re duce conducted noise Cin is shown in Table 3 2 FA L1 C1 220 H F BRFS30 50 50L 470 H F BRFS40 60 100 L1 0 3HH Fig 3 1 Example of recommended external input filter 4 Reverse input voltage protection Avoid the reverse polarity input voltage It will damage the power supply It is possible to protect the unit from the reverse input voltage by installing an external diode as shown in Fig 3 2 VIN a DC IN GND Fig 3 2 Reverse input voltage protection 3 2 Wiring output pin MWhen the BRFS series supplies the pulse current for the pulse load please install a capacitor Co between VOUT and GND pins VOUT 0 L Pulse Load GND O e Co Fig 3 3 wiring external output capacitor Table 3 3 Recommended Capacitor and max Co Model Recommended Co MAX Co BRFS30 40 3x100 HF 10 000 H F BRFS50 50L 2x100 UF 10 000 H F BRFS60 2x100 HF 10 000 UF BRFS100 4x100 HF 20 000 H F
8. BRES COSEL Basic Characteristics Data Basic Characteristics Data Model Circuit method frequency er guiren PRE Sie operation reference A protection Material Siaga sided operation operation BRFS30 Buck Converter 300 1 glass fabric base epoxy resin ultilayer x3 BRFS40 Buck Converter 300 1 glass fabric base epoxy resin ultilayer 3 BRFS50 Buck Converter 300 2 1 glass fabric base epoxy resin ultilayer x3 BRFS50L Buck Converter 300 2 1 glass fabric base epoxy resin ultilayer 3 BRFS60 Buck Converter 300 2 1 glass fabric base epoxy resin ultilayer 3 BRFS100 Buck Converter 300 2 1 glass fabric base epoxy resin ultilayer x3 1 Refer to Specification 2 BRFS50 50L 60 and 100 has 2 Phase Interleaving inverters the frequency of ripple is 600kHz 3 Refer to the Instruction Manual BRES 6 OA OETA Instruction Manual CO EL Pin Configuration BRFS 8 Connection for Standard Use BRFS 8 Wiring Input Output Pin ms Chl YRUANTIYG IOI SII 222 2 22 2 ceneecseeseenseesesenesssnensscenssessasseseersscnsameseesass BRFS 9 S ZENI RLU CUT Cea BRES 9 i BRFS 10 Function r AM OVEN CUNNC MMO LCC LC tae aaa ame eae BRFS 10 Mne nmnaAlprotectio nk a BRFS 10 MR MT OLON NG aceon BRFS 10 All Remote sensing 22s sees oe eecesssssasaaaansen cosas snansossacauaciosaanssanascesnseosssss BRF
9. ON Fig 4 11 Sequence chart of BRFS BRFS 12 5 Series and Parallel Operation 5 1 Series operation Series operation is not possible 5 2 Parallel operation Parallel operation is possible BRFS50 50L 60 100 BRFS30 40 is not possible MBRFS4O has a parallel operation P Hin parallel operation wiring as Fig 5 1 MMake the S and S of the slave power supply unconected iTo improve the load sharing of each unit use the same length and same wire size from each unit to the load As variance of output current drew from each power supply is maximum 10 the total output current must not exceed the value determined by the following equation Output current at parallel operation the rated current per unit x number of unit x0 9 VIN WN VOUT VOUT S _ _ TRM BRFS Rtrm Master TRM SHARE VOUT Adjustment 1002 or less Fig 5 1 Example of wiring method in parallel operation MMake power supply from the same input power supply HTotal number of units should be no more than 5 pieces HPGOOD of slave power supply output the operating conditions When power supply is in operation PGOOD output high level At the time of stop it output low level Please connect each other s SEQ pins if you use SEQ pin HVoltage drop from a power supply to the sensing point should be less than 0 2V for stable control Only use RC pin
10. S 10 MSA djUstablewoltagerange a aa a BRFS 10 A SOUISENWSIEMHU D SAC UIGS k m a BRFS 11 a PROMS OLS ol aee ee a a sSssarGhEbE Aso aanasosecnennKReeses BRFS 12 Ao SVANE See BRFS 12 Series and Parallel Operation BRFS 12 Ba SSUMSS C OSWLTol ea BRFS 12 Sem AN CALL RCO PO Tet ee BRFS 12 6 Implementation Mounting Method BRES 13 Samm LOL TNT CT 00 la BRFS 13 Gee AUTON AUC TINO CTCL Clee ec BRFS 13 6 3 Soldering 202e ree eccc ce ceec cess cce ene sce ce ee cecc ee eese ce eeseceees BRFS 13 6 4 Cleaning 2 022eecc rescore eee c ce c ccc c ee cece ee nce sece ce ece ee ereceees BRFS 13 6 5 Storage method 202e2ece ence nce ne nec cee cece eee BRFS 13 Safety Considerations BRFS 14 Derating BRFS 14 o BRES SenesiDeratino a a BRFS 14 9 Package Information BRFS 15 BRFS 7 BRES CO EL Instruction Manual 1 Pin Configuration Table 1 1 Pin connection and function of BRFS30 40 Pin No Pin Connection Function RC Remote ON OFF VIN DC input SEQ Control of Start up time and turn GND GND DC input DC output VOUT DC output TRM Adjustment of output voltage D S Remote sensing GND GND DC input DC output NC PGOOD NC optional Power good BRFS30 40 SHARE SHARE BRFS40 SGND SGND DC input DC output 00 o O CO Lata o
11. more 70s max C 1 0 5 0C s Fig 6 1 Recommended reflow soldering condition VIN S 8 60 64 E OO OO 0O 5 5 VIN 7 VIN o o EEEE SHARE SHARE VOUT oo0oo0o0000 Coo0oo0000d0 a BRFS30 40 b BRFS50 50L 60 c BRFS100 Fig 6 2 Measurement point of temperature Please do not do the implementation except the reflow MBecause some parts drops please do not do reflow of the back side 6 4 Cleaning MWhen cleaning is necessary clean under the following conditions Method Varnishing ultrasonic wave and vapor Cleaning agents IPA Solvent type Total time 2 minutes or less Do not apply pressure to the lead and name plate with a brush or scratch it during the cleaning After cleaning dry them enough 6 5 Storage method WTo stock unpacked products in your inventory it is recommended to keep them under controlled condition 5 30 C 60 RH and use them within a year 24 hour baking is recommended at 125 C if unpacked products were kept under uncontrolled condition which is 30 C 60 RH or higher Original reels are not heat resistant Please move them to heat resistant trays in preparation to bake To check moisture condition in the pack silica gel packet has some moisture condition indicator particles Indicated blue means good Pink means alarm to bake it The reels will be deformed and the power supply might be dam aged if the vacuum pressure is to
12. o much to reseal BRES 13 CO EL Instruction Manual 7 Safety Considerations To apply for safety standard approval using this power supply the following conditions must be met This unit must be used as a component of the end use equipment Safety approved fuse must be externally installed on input side 8 Derating wii 8 1 BRFS series Derating MMake sure the temperatures measurement locations shown from Fig 8 2 to Fig 8 6 below are on or under the derating curve in Fig 8 1 Ambient temperature must be kept at 85 C or under 100 Load factor ol 40 0 120 Temperature of measurement location C Fig 8 1 Derating curve Temperature measurement location Point A Point B Ha Foo para Oo Fig 8 2 Temperature measurement location BRFS30 BRFS 14 Temperature measurement location Point A o L l b l l 3 ae Fig 8 3 Temperature measurement location BRFS40 Temperature measurement location Point A Point B E IL cine
13. of the master power supply RC pin of the slave power supply should be short to GND Or let RC pin s of the master power supply and the slave power supply short and please use it Hilf this function is unnecessary please make SHARE pin open ln parallel operation please use a single model together When it is necessary to use different model together please contact us COSEL Instruction Manual 6 Implementation Mounting Method 6 1 Mounting method EThe unit can be mounted in any direction When two or more pow er supplies are used side by side position them with proper inter vals to allow enough air ventilation The temperature around each power supply should not exceed the temperature range shown in derating curve 6 2 Automatic Mounting HiTo mount BRFS series automatically use the coil area near the center of the PCB as an adsorption point Please see the External View for details of the adsorption point 6 3 Soldering Fig 6 1 shows condition for reflow of BRFS series Please make sure that the temperature of pin shown in Fig 6 2 do not exceed the temperatures shown in Fig 6 1 MWhile soldering having vibration or impact on the unit should be avoided because of solder melting Tp Tx Ty2 Ty1 sk A A B B C gt time s A 1 0 5 0C s A Ty1 160 10 C Ty2 180 10C Ty1 Ty2 120s max B 1 0 5 0C s B Tp Max245C 10s max Tx 220 C or
14. on and off at a certain frequency 4 2 Thermal protection MWhen the power supply temperature is kept above 120 C the thermal protection will be activated and simultaneously shut down the output The output voltage of the power supply will recover automatically when the unit is cool down 4 3 Remote ON OFF EThe remote ON OFF function is incorporated in the input circuit and operated with RC and GND If positive logic control is re quired order the power supply with R option Table4 1 Specification of Remote ON OFF ON OFF Output Between RC and GND logic voltage _ Llevel 0 2 0 6V or short ON Standard Negative evalia 0 VIN or open OFF e L level 0 2 0 6V or short OFF Optional R Positive M ievel 3 0 VIN or open ON Source current from RC pin is 0 5mA max WE When remote on off function is not used please short GND and RC gt 0 VIN VIN DG RC RC input sw GND GND a b RC VCC RC SVin K GND GND lG External Power supply c d Fig 4 1_ RC connection example BRES 10 4 4 Remote sensing 1 When the remote sensing function is not in use VOUT S S LOAD GND Short at pin root Fig 4 2 Connection when the remort sensing is not in use When the remote sensing function is not in use it is necessary to confirm
15. s s Remote sensing No Parts Reference TRM Adjustment of output voltage F1 Fuse 3 1 1 External fuse D TRM Adjustment of output voltage 2 Ci External output capacitor 3 1 2 External input capacitor i Rrru Resist for adjustment SHARE Parallel operation g menesisiance tor adjustment 44 Adjustable voltage range output voltage D DOODO 0 0 O DO OOO CO0O0000 O O CO OC OC O O OO O O O O 00 O O 9 0 0O a BRFS50 50L 60 b BRFS100 Fig 1 2 Pin connection of BRFS50 50L 60 100 BOTTOM VIEW BRFS 8 COSEL Instruction Manual 3 Wiring Input Output Pin 3 1 Wiring input pin 1 External fuse Fuse is not built in on input side In order to protect the unit install the normal blow type fuse on input side Table 3 1 Recommended fuse normal blow type Model BRFS30 40 BRFS50 50L _BRFS60 BRFS100 Rated current 40A 40A 60A 80A When the input voltage from a front end unit is supplied to multiple units install the normal blow type fuse in each unit When the fuse is open power good signal is not outputed 2 External capacitor on the input side Minstall an external capacitor Cin between VIN and GND input pins for low line noise and for stable operation of the power sup ply Table3 2 Recommended external input capacitor Ceramic Model Recommended Ci Vin 5V Vin 12V BRFS30 40 8x22 UF 4x22 UF BRFS50 50L 8x22 UF 4x
16. that pins are shorted between S amp VOUT and between S amp GND MWire between S amp VOUT and between S amp GND as short as possible Loop wiring should be avoided This power supply might become unstable by the noise coming from poor wiring 2 When the remote sensing function is in use VOUT vara S S GND Wire as close as possible Load Fig 4 3 Connection when the remote sensing is in use WTwisted pair wire or shield wire should be used for sensing wire Thick wire should be used for wiring between the power supply and a load Line drop should be less than 0 5V Voltage between VOUT and GND should remain within the out put voltage adjustment range Hif the sensing patterns are short heavy current is drawn and the pattern may be damaged The pattern disconnection can be prevented by installing the pro tection parts as close as a load 4 5 Adjustable voltage range Output voltage is adjustable by the external resistor The temperature cofficiect could become worse depending on the type of a resistor Resistor Metal film type coefficient of less than 100ppm C When TRM is opened output voltage is adjusted to the minimum HR rm is calculated in the following expressions BRFS30 BRFS40 BRFS50 50L 60 100 8 _ 12 _ sl Reu yoyr ke eure yours hel COSEL Instruction Manual Table 4 2 Calculation result of Table 4 3 Calculation result of
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