Basic characteristics data • Instruction manual
Contents
1. MOver Current Protection OCP is built in and works at 105 of the rated current or higher However use in an over current situa tion must be avoided whenever possible The output voltage of the power module will recover automatically if the fault causing over current is corrected When the output voltage drops after OCP works the power mod ule enters a hiccup mode where it repeatedly turns on and off at a certain frequency 4 2 Overvoltage protection Over Voltage Protection OVP is built in When OVP works out put voltage can be recovered by shutting down DC input for at least one second or by turning off the remote control switch for one second without shutting down the DC input The recovery time varies according to input voltage and input capacitance CBS 16 Remarks Note that devices inside the power module may fail when a volt age greater than the rated output voltage is applied from an exter nal power supply to the output terminal of the power module This could happen in in coming inspections that include OVP function test or when voltage is applied from the load circuit OVP can be tested by using the TRM terminal Consult us for details 4 3 Thermal protection HOver Temperature Protection OTP is built in If the base plate temperature exceeds 100 C OTP will work causing the output voltage to drop Output voltage can be recovered by shutting down DC input for at least one second or by turning RC off fo2. Load VOUT ifp Co S Fig 4 3 When Remote Sensing is Used WUsing remote sensing with long wires may cause output voltage to become unstable Consult us if long sensing wiring is necessary Sensing patterns or wires should be as short as possible If wires are used use either twisted pair or shielded wires Use wide PCB patterns or thick wires between the power module and the load Line drop should be kept less than 0 3V Make sure output voltage from the power module stays within the specified range Hilf the sensing patterns are shorted by mistake a large current may flow and damage the pattern This can be prevented by installing fuses or resistors close to the load As wiring or load impedance may generate oscillation or large fluctuations in output voltage make sure enough evaluation is given in advance 4 6 Adjustable voltage range HOutput voltage can be adjusted by connecting an external potenti ometer VR1 and resistors R1 and R2 as shown in Fig 4 5 Output voltage will increase if the resistance between 1 and is reduced by turning the potentiometer clockwise Recommended values for external components are shown in Table 4 2 Consult us if the power module is used in a different configuration HOutput voltage between VOUT and VOUT can be adjusted by connecting external resistors to TRM However when the input voltage is 18 20VDC with CBS50 100 20024 or 36 40VDC with CBS50 10
3. input voltage range of the power module EChoose a front end power supply that can supply enough current Ip Fig 3 2 for starting up the power module oO gt e o E O 8 Ripple gt 5 voltage gt gt a a Time t Fig 3 1 Input Voltage Ripple Input voltage range Ip Input current A Input voltage V Fig 3 2 Input Current Characteristics 5 Reverse Input Voltage Protection Avoid applying reversed polarity voltage to the power module as it will damage the power module To protect the power module from reversed polarity voltage installing an external diode as shown in Fig 3 3 is recommended a b ovo pt VIN VIN F DC IN T DC IN VIN VIN Fig 3 3 Reverse Input Voltage Protection 3 2 Wiring output pin Minstall an external capacitor Co between VOUT and VOUT to increase stability of output Fig 2 1 Recommended capacitance of Co is shown in Table 3 2 Choose a high frequency type electrolytic capacitor for Co Output ripple and rise time will be influenced by the capacitor s ESR and ESL and the wiring impedance HAs ripple current will flow through capacitor Co pay attention to the ripple current rating of the capacitor Hinstall capacitor Co as close to the power module as possible within 50mm This is useful for reducing radiated noise and increasing stability of the power module operation Table 3 2 Recommende
4. CBS 16 4 1 Gyvercurrentiprotection EEE ES CBS 16 42 Overvoliage protecion sas ssa sas CBS 16 4320 alihermal proteciionts 25 5 a a CBS 16 ANAM RemogoONORR CN SER CBS 16 45m Remotesensing e a SS Ss CBS 16 46 Adjustable voltagerange sa CBS 17 4 7 Withstanding Voltage Isolation Voltage CBS 18 Series and Parallel Operation BS 18 51 Seres operation CBS 18 52 Red ndamcy operatiom e c SS SS SR CBS 18 6 Implementation Mounting Method CBS 18 6 1 Nounitingime ho ds aa na sae mare er sate mee CBS 18 GS tressionioihepinst e a a CBS 18 Go Cleaning ee eee eee ea CBS 19 674 ee Soldenngtemperature dae E da CBS 19 seo Era NN gana ia a CBS 19 GG eatisink ptlonaliDantS k a ca e a asa CBS 19 Cra A ddiiomofalieatisink OpionaliiE Rana CBS 20 Safety Considerations 88 21 CBS 13 COSEL Instruction Manual 1 Pin Configuration 4 Mounting hole VIN O VOUT CBS50 100 200 CASE alo o B s CBS350 450 NC o TRM RCQ o o B S ANES O vouT Fig 1 1 Pin Configuration bottom view Table 1 1 Pin Assignment No Pin Name Function O VIN DC input RC Remote ON OFF NC No connection CBS350 450 CASE Wiring base plate CBS50 100 200 VIN DC input VOUT DC output 6 S Remote sensing D TRM Adjustment of output voltage S Remot
5. 0 20048 the output voltage adjustment range is 60 105 of the rated output voltage except for 1 8 2 5 48V output models When input voltage is 20 22VDC with CBS35024 models or 36 40VDC with CBS35048 models the output voltage adjustment range becomes as shown in Fig 4 4 1 wi lw O f0 Zz lt 10 lt E am E E Go fi 800 800 w 60 b 600 5 7 12 24 28 5 i 12 24 28 8 om l l l a oy l l z 020 21 22 23 q 0 36 38 40 42 INPUT VOLTAGE V INPUT VOLTAGE V CBS35024 CBS35048 Fig 4 4 1 CBS350 Output Voltage Adjustment Range The output adjustment range for CBS450 is shown in Fig 4 4 2 gt 26 0 gt 32 2 w 25 0 LU 30 8 E 24 0 lt 550 a A A O Oo T Z 192 E 5 5 168 l ao we A a 5 o _ 2 jb 5 ol 2 i 2 O 0 3840 5760 O 0 3640 60 76 INPUT VOLTAGE V INPUT VOLTAGE V CBS4504824 CBS4504828 gt Lu g H O gt gt 1 a ed i 0 ma 2 O 0 3640 y 76 INPUT VOLTAGE V CBS4504832 Fig 4 4 2 CBS450 Output Voltage Adjustment Range The wiring to the potentiometer should be as short as possible As the ambient temperature fluctuation characteristics deteriorates depending on the types of resistors and potentiometers used please use resistors and potentiometers of the following specifica tions Resistors eee Metal film type coefficient less than 100ppm C Potentiometer
6. 38 1 58 4 61 0 Vertical Ms AN o o D D O ol Yy A H H NV Vertical Fig 6 3 Heat Sink Types Horizontal CBS 19 COSEL Instruction Manual a N a A T T T Thermal resistance C w SE T I F CBS F1 F2 F CBS F3 F4 F CBS F5 F6 a a o 0 0 0 5 1 0 1 5 2 0 Wind velocity m s 2 5 3 0 Fig 6 4 Thermal Resistance of Heat Sink Forced Air 6 7 Addition of a Heat sink Optional F Heat sink pre attached models are also available Except CBS350 450 Table 6 3 Types of Heat Sink Pre Attached Models Available Size mm Weight H W OD 9 Option Style Heat sink type name F1 26 5 58 7 62 5 Horizontal F CBS F1 150 or less F2 26 5 59 5 62 0 Vertical F CBS F2 F3 39 2 58 7 62 5 Horizontal F CBS F3 170 or less F4 39 2 59 5 62 0 Vertical F CBS F4 F5 52 0 58 7 62 5 Horizontal F CBS F5 185 or less F6 52 0 59 5 62 0 Vertical F CBS F6 W i H alll Ld l i U l Horizontal Vertical Fig 6 5 Dimensions of Heat Sink Pre Attached Models CBS 20 WDerating curve characteristics with respect to aluminum bas
7. COSEL Basic Characteristics Data Basic Characteristics Data Series Redundanc Model Circuit method Peace ee a Rated a HOBIEEUC a operation availabiliy kHz Al input fuse protection Material Saes Roi operation operation CBS50 Forward converter 310 Aluminum Yes Yes 1 CBS100 Forward converter 370 Aluminum Yes Yes 1 CBS200 Forward converter 370 Aluminum Yes Yes 1 CBS350 Forward converter 370 Aluminum Yes Yes 1 CBS450 Forward converter 370 Aluminum Yes Yes 1 1 Refer to Instruction Manual Table1 The value of input current at rated input voltage and rated load A Output Voltage Model 1 8V 2 5V 3 3V 5V 12V 15V 24V 28V 32V 48V CBS5024 1 2 1 6 2 0 2 5 2 4 2 4 2 4 2 4 CBS5048 0 6 0 8 1 0 1 3 1 2 1 2 1 2 1 2 CBS10024 2 5 3 2 4 1 5 0 4 8 4 8 4 8 4 8 CBS10048 1 2 1 6 2 0 2 5 2 4 2 4 2 4 2 4 CBS20024 3 8 4 8 6 1 7 6 9 6 9 6 9 7 9 7 CBS20048 1 9 2 4 3 0 3 8 4 8 4 8 4 8 4 8 4 8 CBS35024 E 7 15 17 17 17 14 CBS35048 7 8 4 8 2 8 1 8 2 8 2 CBS45048 10 6 10 5 9 3 CBS 12 DER EL EAN Instruction Manual CO EL Pin Configuration cBS 14 Connection for Standard Use CBS 14 Wiring Input Output Pin cBs 14 oul WINING im OU pisa rca Ga cae ace CBS 14 terre E VII OU To Ut pn e ee a a a a a otete CBS 15 Function
8. b Power ao Power Supply g Supply y 9 9 Power g Supply Power 9 Supply L gt Fig 5 1 Examples of Series Operation 5 2 Redundancy operation Parallel operation is not possible HRedundancy operation is available by wiring as shown below S al l3 VOUT g VOUT S Load S pyle VOUT VOUT S Fig 5 2 Example of Redundancy Operation CBS 18 HEven a slight difference in output voltage can affect the balance between the values of lt and le Please make sure that the value of l3 does not exceed the rated current of a power supply I3 lt the rated current value 6 Implementation Mounting Method 6 1 Mounting method When multiple power modules are used side by side position them with sufficient spaces to allow adequate air ventilation so that the aluminum base plate temperature of each power module will remain within the temperature range shown in the derating curves Fig 6 2 EDo not pass the DC input pattern underneath the power module as this will increase conducted noise Place the DC input pattern away from the power module Do not pass the DC output pattern underneath the power module as this will increase output noise Place the DC output pattern away from the power module High frequency noise is radiated from the power module When mounting the pow
9. cluding CBS350 450 _ e 50 o oO k 0 i 85 40 20 0 20 40 60 80 100110 Aluminum base plate temperature Tc C 100 e 8374 EDESSA Mevsielewe SSA HSEEE OESE 3o aek oieee z DCBS3502412 CBS3502448 CB E 50 Others CBS350 O S i pa i S 15 7 Ss m 85 40 20 0 20 40 60 80 100 110 Job Aluminum base plate temperature Tc C 32175 ze o i 8 50 CBS450 o oO S4 5 Vf 0 ML 1H 85 40 20 0 20 40 60 80 100 110 Aluminum base plate temperature Tc C Te Measuring point A uminum base plate Fig 6 2 Derating Curve 6 6 Heat sink Optional parts HThe power module works with conduction cooling and needs heat dissipation using heat sinks Optional heat sinks are available for CBS Series Refer to Table 6 2 for details on the thermal resis tance of heat sinks Table 6 2 Types of Heat Sinks Available Size mm Thermal resistance C W No Model Convection Style H W D 0 1mis Forced Air 1 F CBS F1 12 7 57 9 61 5 75 Horizontal 2 F CBS F2 12 7 58 4 61 0 Vertical 3 F CBS F3 25 4 57 9161 5 Horizontal 4 F cBS F4 25 4 58 4161 0 48 ReferFig64 F Vertical 5 F CBS F5 38 1 57 9 61 5 3 0 Horizontal 6 F CBS F6
10. d Capacitance for External Output Capacitor Co yF Base plate temperature Tc 20 to 100 C VOUT 1 8V 2 5V 3 3V 5V 12V 15V 24V 28V 32V 48V CBS50 2200 470 220 CBS100 2200 470 220 CBS200 2200 1000 470 330 CBS350 470 220 CBS450 220 Base plate temperature Tc 40 to 100 C VOUT 1 8V 2 5V 3 3V 5V 12V 15V 24V 28V 32V 48V CBS50 2200 X2 470X2 220 X2 CBS100 2200 X2 470X2 220 X2 CBS200 2200 X2 1000 X 2 470X2 330X3 CBS350 470X3 220 X3 CBS450 220 X3 CBS 15 COSEL Instruction Manual HThe specified ripple and ripple noise are measured by the method introduced in Fig 3 4 CBS50 100 200 S0mm S D VIN VOUT Ke RC Co 0 14 F Load VIN VOUT SE 4700pF D CASE S Measuring board DC Cin Ss Oscilloscope BW 20MHz CBS350 450 p 50mm _ S D VIN VOUT 77 RC Co 0 1uF Load se VOUT Ne 4700pF DO pening S D ole Measuring board H 1 5m 500 Coaxial Cable eliR 500 LY 1 C 0 01 HF Oscilloscope 4 BW 100MHz Fig 3 4 Method of Measuring Output Ripple and Ripple Noise 4 Function 4 1 Overcurrent protection
11. d needs basic or double reinforced isolation the re quired isolation must be provided in the construction of the final product Use external fuses that comply with safety standards at the in put CBS 21
12. e plate temperature are shown in Fig 6 6 Measure the temperature of the base plate in a location away from direct airflow A Note that operation within the hatched areas will cause a significant level of ripple and ripple noise 100 ES DCBS200 112 15 24 28 48 5 Others Excluding CBS350 450 o 50 me oO s 0 95 40 20 0 20 40 60 80 90 100110 Aluminum base plate temperature Tc C Fig 6 6 Derating Curve Characteristics T na M U Fig 6 7 Measuring Point mMake sure that PCB mounting screws do not touch the heat sink mounting screws Mounting hole 7mm max PCB M3 Mounting screw Fig 6 8 PCB Mounting Screw Dimensions COSEL Instruction Manual 7 Safety Considerations To apply for safety standard approvals with the power module the following conditions must be met Consult us for more details The power modules must be used as a component power supply in end use equipment Neither basic isolation nor double reinforced isolation is provided across input output and the base plate of the power module If the power module is to be used with input voltage of more than 60VDC an
13. e sensing VOUT DC output Mounting hole Mounting hole No Pin Name Reference VIN 3 1 Wiring input pin RC 4 4 Remote ON OFF NC a CASE 3 1 Wiring input pin VIN VOUT 3 2 Wiring output pin S 4 5 Remote sensing TRM 4 6 Adjustable voltage range S 4 5 Remote sensing _ VOUT 3 2 Wiring output pin Mounting hole 6 1 Mounting method 2 Connection for Standard Use HThe power module needs input and output connections as shown in Fig 2 1 Reference 3 Wiring Input Output Pin 6 5 Derating CBS 14 Short the following pins to turn on the power module VIN ERC VOUTO S and VOUTO S Reference 4 4 Remote ON OFF 4 5 Remote sensing HOnly DC voltage can be applied to CBS Series Applying AC volt age will damage the power module HThe power module is designed for conduction cooling Make sure that heat sinks fans etc are used for heat dissipation Refer to 6 5 Derating Fuse N S VIN VOUT oe e Cin Co z n VOUT e 9 CASE CBS50 100 200 S C Y Mounting hole CBS350 450 Cin External capacitor on the input side Co External capacitor on the output side CY Primary decoupling capacitor N Load DC input Fig 2 1 Connection for Standard Use 3 Wiring Input Output Pin 3 1 Wiring input pin 1 External fuse The in
14. er module on a PCB leave a copper pattern on the PCB to let it act as a shield and connect this pattern to the CASE pin CBS50 100 200 or the mounting hole MWhen a heat sink cannot be fixed on the base plate side order the power module with T option A heat sink can be mounted by affix ing a M3 tap on the heat sink In case of CBS350 450 make sure a mounting hole will be connected to a grounding capacitor Cy Table 6 1 Mounting Hole Configuration Mounting hole M3 tapped 3 4 thru Standard Optional T 6 2 Stress onto the pins Applying excessive stress to the input or output pins of the power module may damage internal connections Avoid applying stress in excess of that shown in Fig 6 1 input and output pins are soldered onto the internal PCB Do not bend or pull the leads with excessive force HAs unexpected stress may be applied to the pins set the diameter of the PCB mounting hole at 3 5mm HAs unexpected stress may be applied to the pins from vibration or shock fix the power module by using the mounting holes with screws to reduce stress Fix the power module to the PCB with the screws before soldering the input and output pins to prevent the PCB pattern being dam aged COSEL Instruction Manual VIN o O VOUT O CASE 4 o S NC o TRM C RC o o S E VIN o O VOUT CT VOUT VOUT Others Less than Less than Less than L
15. ess than 39 2N 4kgf nee 19 6N 2kgf NE Less than 19 6N 2kgf Less than 39 2N 4kgf Fig 6 1 Stress onto Pins 6 3 Cleaning Clean the soldered side of the power module with a brush Prevent liquid from getting into the power module Do not clean by soaking the power module into liquid Do not allow solvent to come in contact with product labels or res in cases as this may change the color of the resin case or cause deletion of the letters printed on the product label After cleaning dry the power modules well 6 4 Soldering temperature HFlow soldering 260 C for up to 15 seconds Soldering iron 26W 450 C for up to 5 seconds 6 5 Derating Use the power modules with conduction cooling e g heat dissipa tion from the aluminum base plate to the attached heat sink Fig 6 2 shows the derating curves with respect to the aluminum base plate temperature Note that operation within the hatched ar eas will cause a significant level of ripple and ripple noise Contact us for more information on cooling methods Hilt is necessary to note thermal fatigue life by power cycle Please reduce the temperature fluctuation range as much as pos sible when the up and down of temperature are frequently gener ated Contact for more information on cooling methods 100 ees LY TNX 8 DCBS200 12 15 24 28 48 5 Others Ex
16. he output There is no maximum limit to capacitance Cy when the power module is used with an isolation voltage of less than 500VAC 1 min between input and output 3 External Capacitor on the Input HAn external capacitor Cin must be installed between VIN and VIN to reduce line noise and stabilize the power module opera tion Fig 2 1 CBS50 100 20024 at least 68 uF CBS35024 at least 220 uF X2 CBS50 100 20048 at least 33 uF CBS35048 at least 68 uF X2 CBS45048 at least 68 uF X2 Tc 20 to 100 C Electrolytic or Ceramic capacitor Capacitance Tc 40 to 100 C Ceramic capacitor HThe capacitor must be installed less than 50mm of the power module As ripple current will flow through this capacitor pay at tention to the ripple current rating of the capacitor Milf the power module is to be turned ON OFF directly with a switch inductance from the input line will induce a surge voltage several times that of the input voltage and it may damage the power mod ule Make sure that the surge is absorbed for example by con necting an electrolytic capacitor between the input pins 4 Input Voltage Range Input Current Range Keep the input voltage ripple within the specifications below Out put ripple voltage will increase as these values increase Ripple voltage CBS50 100 200 35024 less than 2Vp p CBS50 100 200 35048 less than 4Vp p CBS45048 less than 4Vp p MMake sure that the peak input voltage stays within the specified
17. put circuit of CBS Series does not come with a built in fuse In order to protect the power module a normal blow fuse should be installed to VIN When multiple modules get input voltage from a single front end power supply a normal blow fuse must be installed to each mod ule Table 3 1 Recommended Fuses Normal Blow Type CBS20024 Model CBS5024 CBS10024 mas 1215 24 28 CBSE Rated current 6A 12A 20A 25A 30A CBS20048 CBS35048 Model CBS5048 CBS10048 55 03 05 12 15 24 28 48 CBS45048 Rated current 3A 6A 10A 12A 20A 2 Noise Filter Grounding Capacitor BA grounding capacitor Cy must be used to reduce the line noise on the input line and stabilize the power module operation Fig 2 1 Note that resonance and inductance from the input line filter may cause the power module to become unstable HAn appropriate filter must be used if conformance to the conduct ed noise regulation is required or if surge voltage may be applied to the unit Please consult us for more details Minstall a grounding capacitor Cy of at least 4700 pF as close to the input pins as possible within 50mm of the pins COSEL Instruction Manual Wilf the total capacitance of the grounding capacitor exceeds 15000 pF the specified isolation voltage between input and output may not be satisfied In this case either reduce the capacitance of the grounding capacitor at the input or install a grounding capacitor to t
18. r one second without shutting down the DC input 4 4 Remote ON OFF The remote ON OFF function is incorporated in the input circuit and operated with RC and VIN If positive logic control is re quired order the power module with R option Table 4 1 Remote ON OFF Specifications ON OFF logic Between RC and VIN Output voltage k L level 0 1 2V or short ON E level 3 5 7 0V or open OFF Optional Posiivo L level 0 1 2V or short OFF R H level 3 5 7 0V or open ON When RC is at low level a current of 0 5mA typ will flow out When Vcc is used keep it within the following rage 3 5 VCC 7V When remote ON OFF is not used short RC and VIN Vcc RC e FS RC que VIN Opto coupler Transistor ROO RC ot al VINo VIN IC Relay Fig 4 1 RC Connection Example 4 5 Remote sensing 1 When Remote Sensing is Not Used S D VOUT C Load VOUT N a 2 S Short at pin root Fig 4 2 When Remote Sensing is Not Used COSEL Instruction Manual MWhen remote sensing is not used make sure VOUT and S are shorted and that VOUT and S are shorted as well Keep the patterns between S and VOUT and between S and VOUT as short as possible Avoid a looping pattern If noise en ters the loop the operation of the power module will become un stable 2 When Remote Sensing is Used Wire as close as possible R i S y VOUT
19. s Cermet type coefficient less than 300ppm C When output voltage adjustment is not required open TRM HNote that when adjusting output voltage setting output voltage too high may cause OVP to work Control Amp of rated voltage Ne VOUT RB 1 8V_ 1 3kQ 2 5V 1 8kQ 33 48V 3kQ Fig 4 5 Connecting External Parts CBS 17 COSEL Instruction Manual Table 4 2 Recommended Values of External Resistors Adjustable range No VOUT VOUT 5 VOUT 10 R1 R2 R1 R2 1 1 8V 1 8kQ 6 2kQ 1 6kQ 3 6kQ 2 2 5V 2 7KQ 7 5KQ 2 4kQ 4 7kQ 3 3 3V 2 4kKQ 2 4kQ 4 5V 5 6kQ 5 6kQ 5 12V 18kQ 18kQ 6 15V 24kQ 24kQ 7 24V 43kQ Te 39kQ pene 8 28V 51kQ 47kQ 9 32V 56kQ 56kQ 10 48V 82kQ 82kQ 4 7 Withstanding Voltage Isolation Voltage MWhen testing the withstanding voltage make sure the voltage is increased gradually When turning off reduce the voltage gradual ly by using the dial of the hi pot tester Do not use a voltage tester with a timer as it may generate voltage several times as large as the applied voltage 5 Series and Parallel Operation 5 1 Series operation Multiple CBS units can be used in series Keep the output current less than the smallest specified rated current of the modules con nected in series Make sure the current flown into the power mod ule will not exceed the rated current a
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