Basic characteristics data • Instruction manual
Contents
1. noon O Temperature measurement Fig 8 23 CQS48015 50 CQS48018 50 CQS48025 45 CQS48033 45 Temperature measurement location CE CQ 20 non 0000 0000 UUUU 0000 OUUU O E Temperature measurement Fig 8 24 CQS48050 28 Temperature measurement location uUouuu OUUU e nan ava Temperature measurement Fig 8 25 CQS48120 14 CQS48150 8 Temperature measurement location Shown the thermal curve with measuring as shown in Fig 8 26 Verify final design by actual temperature measurement Use the temperature measurement location as shown in Fig 8 22 to Fig 8 25 at 120 C or less PWB K a5 am lt CQS CQs Top Input side Output side Measurement point for ambient temperature 12 7mm ei ie 111 1111 Airflow Airflow 76mm Fig 8 26 Measuring method CO EL aa Instruction Manual CES CQS 40 wo gt Load current A IN o convection cooling 0 2m s O 10 1m s 2m s 0 EE A 40 20 0 20 40 60 80 Ambient temperature C Fig 8 27 Load cur2. 40 20 0 20 40 60 80 100 120 Temperature of measurement location C Fig 8 1 Derating curve COSEL Instruction Manual CES CQS nnan noon Shown the thermal curve with measuring as shown in Fig 8 3 e eom Verify final design by actual temperature measurement Use the temperature measurement location as shown in Fig 8 2 1 a 4 to fig 8 2 3 at 120 C or less Y NI 0000 0000 PWB 4 K lt gt CES Temperature measurement location o 2 CES B D Fig 8 2 1 Temperature measurement location 2 Top 5 8 o 2 E Measurement point for ambient temperature 12 7mm E ae and airflow gt 2 O Airflow Airflow Fig 8 3 Measuring method Temperature measurement location Fig 8 2 2 Temperature measurement location CES Type P O 25 MOption B and BT Type P used with the convection cooling or 2 e the forced air cooling or the conduction cooling T 1 Use the temperature measurement location as shown in Fig 8 2 3 S 15 3 E 10 8 Dconvection cooling 0 2m s 5 1m s 2m s 0 z 4 40 20 0 20 40 60 80
3. 10A CO EL 2 External capacitor on the input side Minstall an external capacitor Cin between VIN and VIN input pins for low line noise and for stable operation of the power sup ply Capacitance Refer to Table 2 1 Ta 20 to 85 C Electrolytic or Ceramic capacitor Ta 40 to 85 C Ceramic capacitor Cin is within 50mm for pins Make sure that ripple current of Cin should be less than rate 3 Recommended of 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 2 1 The result for this solution is shown in Fig 3 2 1mH t VIN VOUT P tO pe L WW RC S de iad input Te 2ur 0000 a S 104 F we VIN VOUT 0 068 y F 0 068 y F 0 033 y F 0 033 4 F da Fig 3 1 Recommended external input filter 100 T dd so CISPR Pub 22 Class A QP m 7 CISPR Pub 22 Class A Ave ae h a ii l i ll mace lf Pl He TR ed BAANT 20f 10 500k 700k IM 2M 3M 5M M 10M 20M 30M Frequency Hz 0 L 150k 200 300k Fig 3 2 Conducted noise CES48033 25 a iaa Instruction Manual 4 Reverse input voltage protection Avoid the reverse polarity input voltage I
4. Ambient temperature C Fig 8 4 Load current vs ambient temperature CES24033 25 Vin 24V Aluminum base plate Measurement point 20 Fig 8 2 3 Measurement point CES Type P option B BT 15 lt x 3 10 me 8 convection cooling 0 2m s 5 1m s 2m s 0 oe Ml a alee 40 20 0 20 40 60 80 Ambient temperature C Fig 8 5 Load current vs ambient temperature CES24050 16 Vin 24V CE CQ 17 COSEL Instruction Manual CES CQS T E 2 E jo 8 Dconvection cooling 0 2m s 2 1m s 2m s 0 O 40 20 0 20 40 60 80 Ambient temperature C Fig 8 6 Load current vs ambient temperature CES24120 6 Vin 24V T a o 8 convection cooling 0 2m s 1 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 7 Load current vs ambient temperature CES24150 4 Vin 24V 30 24 T 5 18 E E 12 7 a 3 Dconvection cooling 0 2m s 6 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C F
5. VIN VIN IC Relay Fig 4 1 RC connection example 4 5 Remote sensing 1 When the remote sensing function is not in use VOUT P Load VOUT gt Short at pin root Fig 4 2 Connection when the remote sensing is not in use COSEL Instruction Manual CES CQS MWhen the remote sensing function is not in use it is necessary to confirm that pins are shorted between S amp VOUT and between S amp VOUT Wire between S 8 VOUT and between S amp VOUT 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 Wire as close as possible VOUT S Load S VOUT Fig 4 3 Connection when the remote sensing is in use MW Twisted 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 3V Voltage between VOUT and VOUT should remain within the output voltage adjustment range Wilf 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 MOutput voltage might become unstable because of impedance of wiring and load condition when length of wire is exceeding 40cm 4 6 Adjustable voltage range 1 Output voltage adjustin
6. CO EL Instruction Manual 4 Function 4 1 Overcurrent protection and Low voltage protection WoOvercurrent protection is built in and comes into effect at over 105 of the rated current Overcurrent protection prevents the unit from short circuit and overcurrent condition The DC output will be shut down when the output voltage drops under the output voltage adjustment range low voltage protec tion In this case recovery from low voltage protection is accomplished by cycling the DC input power off for at least 1 second or tog gling Remote ON OFF signal The recovery time varies depending on input voltage and input capacity 4 2 Overvoltage protection The overvoltage protection circuit is built in The DC input should be shut down if overvoltage protection is in operation In this case recovery from overvoltage protection is accomplished by cycling the DC input power off for at least 1 second or tog gling Remote ON OFF signal The recovery time varies depending on input voltage and input capacity Remarks Please note that devices inside the power supply might fail when voltage more than rated output voltage is applied to output pin of the power supply This could happen when the customer tests the overvoltage performance of the unit 4 3 Thermal protection MWhen the power supply temperature is kept above 120 C the thermal protection will be activated and simultaneously shut down the output In this
7. CO EL Instruction Manual Load current A convection cooling 0 2m s 1 1m s 2m s 0 40 20 0 20 40 60 8065 Fig 8 14 Load current vs ambient temperature CES48150 4 Vin 48V Ambient temperature C T E 2 E B 310 convection cooling 0 2m s 1m s 2m s 0 tt O 40 20 0 20 40 60 80 Ambient temperature C Fig 8 15 Load current vs ambient temperature CES48033 30 Vin 48V 24 20 T E 16 2 3 12 me 8 8 convection cooling 0 2m s 1m s 4 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 16 Load current vs ambient temperature CES48050 20 Vin 48V 20 lt x 15 2 o g 10 convection cooling 0 2m s 3 5 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 17 Load current vs ambient temperature CES48060 17 Vin 48V T T o 8 jo 310 convection cooling 0 2m s 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 18 Load current vs ambient temperature CES48033
8. 30P Vin 48V 24 20 T E 16 2 3 12 g A 3 g convection cooling 0 2m s 1m s 4 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 19 Load current vs ambient temperature CES48050 20P Vin 48V Load current A convection coolin 2 1m s 2m s 0 40 20 0 20 40 60 80 Fig 8 20 Load current vs ambient temperature CES48120 7P Vin 48V Ambient temperature C For other thermal curves please consult with us CE CQ 19 CO EL Instruction Manual CES CQS 8 2 CQS Derating Use with the convection cooling or the forced air cooling Use the temperature measurement location as shown in Fig 8 21 at 120 C or less Ambient temperature must keep bellow 85 C 100 80 60 40 Load factor 20 0 40 20 0 20 40 60 80 100 120 Temperature of measurement location C Fig 8 21 Derating curve Leia roo O E Temperature measurement Fig 8 22 CQS2400 Temperature measurement location oon UUUU OUUU UOUN UU
9. S MFig 6 2 shows conditions for the reflow soldering for option S of CES series Please make sure that the temperatures of pin ter minals VIN and VOUT shown in Fig 6 2 do not exceed the tem peratures shown in Fig 6 3 Hilf time or temperature of the reflow soldering goes beyond the conditions reliability of internal components may be compromised Please use the unit under the recommended reflow conditions VIN gt H o o H o H H o o H o H H o O o H lt VOUT Fig 6 2 Temperature Measuring Points when Setting Reflow Soldering Conditions Tp Tx Ty2 Ty174 time s A 1 0 5 0 C s A Ty1 160 10 C Ty2 180 10 C Ty1 Ty2 120s max B 1 0 5 0 C s B Tp Max245 C 10s max Tx 220 C or more 70s max C 1 0 5 0 C s Fig 6 3 Recommend Reflow Soldering Conditions CE CQ 15 CO EL Instruction Manual CES CQS Notes to use option S Solder iron or similar is not recommended soldering method for option S The reason is to retain connection reliability between the PCB and the Pins Solder reflow is the acceptable mounting system for the option HOption S is not reusable product after soldered on any applica tion PCB 6 4 Stress onto the pins mWhen too much stress is applied to the pins of the power supply the internal connection may be weakened As shown in Fig 6 4
10. avoid applying stress of more than 19 6N 2kgf on the pins horizontally and more than 39 2N 4kgf verti cally The pins are soldered on PWB internally therefore do not pull or bend them with abnormal forces MFix the unit on PCB using silicone rubber or fixing fittings to re duce the stress onto the pins lt lt gt Less than Y Less than Less than Less than 19 6N y 19 6N 19 6N al 19 6N Less than eo a 39 2N option S Fig 6 4 Stress onto the pins 6 5 Cleaning MWhen cleaning is necessary follow the under mentioned condi tion Method Varnishing ultrasonic wave and vapor Cleaning agents IPA Solvent type Total time 2 minutes or less MDo not apply pressure to the lead and name plate with a brush or scratch it during the cleaning After cleaning dry them enough 6 6 Storage method CESseries option S MiTo stock unpacked products in your inventory it is recommended to be kept under controlled condition 5 30 C 60 RH and be used within a year M24 hours baking is recommended at 125 C if unpacked products was kept under uncontrol condition in which 30 C 60 RH or higher Original tray is not heat resistant please move them to heat resistant tray preparing to bake them To check moisture condition in the pack silica gel packet has some moisture condition indicator particle Indicated blue means good Pink means alarm to bake it Notificat
11. sernes optionS CE CQ 15 CERES CC oa CE CQ 15 64 Siress eno Una OS e orresasooooocconccnonennsnnoocasrooscconicnocccooanos CE CQ 16 6 5 Cleaning CE CQ 16 ES Sor mane das sa tesauilan E 000 0 1 eee ooo CE CQ 16 ES ON OCU CUR cerca CE CQ 16 Safety Considerations CE 00 16 Derating cE 00 16 E A ng mes ese cc ec Se CE CQ 16 2 CESDETN 2 lt n 2 202s cscs no sacosaane snaanenecamannsacosaanssnaimeneusnsensacencoss CE CQ 20 9 SMD type optionS package information az CE CQ 9 COSEL Instruction Manual 1 Pin Connection CES Series VINO VOUT o S RC o TRM O S VIND o O VOUT CQS Series VINO o o VOUT o S RCO o o TRM o S VIND o o VOUT Fig 1 1 Pin Connection bottom view Table 1 1 Pin Connection and function No Pin Connection Function O VIN DC input RC Remote ON OFF VIN DC input O VOUT DC output O S Remote sensing O TRM Adjustment of output voltage S Remote sensing VOUT DC output No Pin Connection Reference VIN 3 1 Wiring input pin RC 4 4 Remote ON OFF O VIN 3 1 Wiring input pin VOUT 3 2 Wiring output pin S 4 5 Remote sensing TRM 4 6 Adjustable
12. 8kQ 18kQ 33kQ 8 15V 22kQ 68kQ 22kQ 33kQ 2 Output voltage decreasing By connecting the external resistor RD output voltage becomes adjustable to decrease The external resistor RD is calculated the following equation 5 11 RD 10 22 kQ A fe Vor Vop Vor Vor Rated output voltage V Vopn Output voltage needed to set up V VOUT S TRM RD S VOUT Fig 4 5 Connection for output voltage decreasing CE CQ 13 COSEL Instruction Manual CES CQS 3 Output voltage increasing By connecting the external resistor RU output voltage becomes adjustable to increase The external resistor RU is calculated the following equation s 5 11 X Von X 1 A 5 11 p 1 225XA A 10 22 kQ Vou Vor Vor A Vor Rated output voltage V Vou Output voltage needed to set up V VOUT S RU TRM S VOUT Fig 4 6 Connection for output voltage increasing 4 Input voltage derating CE 00 MCES240 0 and CQS240 0 require DC20V or more input to trim the output voltage up more than rated MCES48050 20P require DC40V or more input to trim the output voltage up more than 5 5V 4 7 Isolation For a receiving inspection such as Hi Pot test gradually increase decrease the voltage for a start shut down Avoid using Hi Pot tester with the timer because it may generate voltage a few times higher than the app
13. COSEL Basic Characteristics Data Basic characteristics data Series Redundancy Model Cireuitimethod o Input Rated aural ROBIREUS im operation availabilty KHz current input fuse Pra Material ided Riia operation operation CES Forward converter 420 1 glass fabric base epoxy resin Multilayer Yes x2 CES type P Forward converter 400 1 glass fabric base epoxy resin Multilayer Yes x2 cas Forward converter 420 1 glass fabric base epoxy resin Multilayer Yes 2 1 Refer to Specification 2 Refer to Instruction Manual CE CQ 8 Meech ca Instruction Manual COSEL Pin Connection CE CQ 10 Connection for Standard Use CE 0Q 10 Wiring Input Output Pin CE CQ 10 Sl WAE MOUI ON esso orosocosonocaronooooscconoscacanoooconacosconossoscoooososerosceses CE CQ 10 SEC A OUTOUT MN aa CE CQ 11 Function CE 00 12 4 1 Overcurrent protection and Low voltage protection CE CQ 12 ALO Ve voltage protection E EEE CE CQ 12 ASA E a O LE E ELO ae a om m4 OO OO OOO O O CE CQ 12 A REM OO NO le eg P CE CQ 12 A ENMOLCNS CNNSI Cee CE CQ 12 AVS ACO UKSE VOI IS WON EVG 5 EVIG 2 a a CE CQ 13 ANS OL AO XI CE CQ 14 Series and Parallel Operation 05 0014 SS O e CE CQ 14 de Redundancy operation ee eee CE CQ 14 6 Implementation Mounting Method CH 00 15 Sul MISUIIIN MEINDO a CE CQ 15 6 2 Automatic Mounting CES
14. case the unit should be cool down and then recovery from thermal protection is accomplished by cycling the DC input power off for at least 1 second or toggling Remote ON OFF signal N Option N means auto restart from thermal protection CE CQ 12 4 4 Remote ON OFF Remote ON OFF circuit is built in on input side RC The ground pin of input side remote ON OFF circuit is VIN pin Table 4 1 1 Specification of Remote ON OFF ON OFF Output F Between RC and VIN logic voltage L level 0 0 8V or short ON Standard Negative H level 2 0 7 0V or open OFF L level 0 0 8V or short OFF Optional R Positive H level 2 0 7 0V or open ON When RC is Low level fan out current is 0 1mA typ When Vcc is applied use 2 0 lt Vcc lt 7 0V Table 4 1 2 Specification of Remote ON OFF type P N OFF 9 de Between RC and VIN Output logic voltage L level 0 0 8V or short ON Standard Negative H level 4 0 7 0V or open OFF pa L level 0 0 8V or short OFF Optional R Positive H level 4 0 7 0V or open ON When RC is Low level fan out current is 0 1mA typ When Vcc is applied use 4 0 lt Vcc lt 7 0V MWhen remote ON OFF function is not used please short between RC and VIN R open between RC and VIN Vcc 2 0 lt Vcc lt 7 0V O RC RC O VIN VIN Photo coupler Transistor RC me O RC Lo
15. ent vs ambient temperature CQS48018 50 Vin 48V Ambient temperature C 50 O a O T Ss 30 E g 20 a a 3 convection cooling 0 2m s 10 1m s 2m s 0 40 20 0 20 40 60 80 Fig 8 33 Load current vs ambient temperature CQS48025 45 Vin 48V Ambient temperature C T z g 20 A 8 convection cooling 0 2m s 10 1m s 2m s 0 40 20 0 20 40 60 8065 Fig 8 34 Load current vs ambient temperature CQS48033 45 Vin 48V CE CQ 21 Ambient temperature C COSEL Instruction Manual CES CQS 30 O T 5 20 me 8 10 Dconvection cooling 0 2m s 1m s 2m s 0 ft 40 20 0 20 40 60 80 Ambient temperature C Fig 8 35 Load current vs ambient temperature CQS48050 28 Vin 48V 15 T 5 10 g a 3 5 Dconvecti 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 36 Load current vs ambient temperature CQS481 20 14 Vin 48V Load current A A convecti 2 1m s 2m s 0 40 20 0 20 40 60 80 Ambient
16. g MOutput voltage is adjustable by the external potentiometer mWhen the output voltage adjustment is used note that the over voltage protection circuit operates when the output voltage sets too high Wif the output voltage drops under the output voltage adjustment range note that the Low voltage protection operates WEBy connecting the external potentiometer VR1 and resistors R1 R2 output voltage becomes adjustable as shown in Fig 4 4 recommended external parts are shown in Table 4 2 MThe wiring to the potentiometer should be as short as possible The temperature coefficient becomes worse depending on the type of a resistor and potentiometer Following parts are recom mended for the power supply Resistor Metal film type coefficient of less than 100ppm C Potentiometer Cermet type coefficient of less than 300ppm C When the output voltage adjustment is not used open the TRM pin respectively Control Amp of rated voltage Ei Y 5 11kQ l 3 VOUT Fig 4 4 Output voltage control circuit Table 4 2 Recommended value of external potentiometer amp resistor Output adjustable range No VOUT VOUT 5 VOUT 10 R1 R2 VR1 R1 R2 VR1 1 1 5V 0 10kQ 0 4 3kQ 2 1 8V 0 39kQ 0 18kQ 3 2 5V 330Q 68kQ 560Q 33kQ 4 3 3V 2 2kQ 68kQ 2 2kQ 33kQ 5 5V 4 7KQ 68kQ sia 5 6kQ 33kQ ie 6 6V 5 6kQ 68kQ 6 8kQ 33kQ 7 12V 18kQ 6
17. ig 8 8 Load current vs ambient temperature CES48015 30 Vin 48V 30 24 T 5 18 E g 12 a 3 convection cooling 0 2m s 6 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 9 Load current vs ambient temperature CES48018 30 Vin 48V CE CQ 18 25 20 T 5 15 3 g 10 A 9 convection cooling 0 2m s 5 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 10 Load current vs ambient temperature CES48025 25 Vin 48V 25 20 T 5 15 E g 10 gt 7 Q convection cooling 0 2m s 5 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 11 Load current vs ambient temperature CES48033 25 Vin 48V 20 z 15 3 10 3 3 convection cooling 0 2m s 5 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 12 Load current vs ambient temperature CES48050 16 Vin 48V T E o 3 E 3 convection cooling 0 2m s 2 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 13 Load current vs ambient temperature CES48120 6 Vin 48V
18. ion The tray will be deformed and the power supply might be damaged if the vacuum pressure is too much to reseal CE CQ 16 6 7 Stress to the product MCES CQS series transformer core and choke coil core are at tached by glue There is a possibility that the core will be removed and power sup ply will be damaged when it took stress by the fall or some kind of stress 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 equip ment The equipment contain basic insulation between input and out put If double or reinforced insulation is required it has to be pro vided by the end use equipment according the final build in con dition Safety approved fuse must be externally installed on input side 8 Derating 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 8 1 CES Derating MUse with the convection cooling or the forced air cooling Use the temperature measurement location as shown in Fig 8 2 1 to Fig 8 2 3 below the regulated temperature Refer to Fig 8 1 for derating curve Ambient temperature must keep bellow 85 C 100 80 60 40 Load factor
19. lied voltage at ON OFF of a timer CE CQ 14 5 Series and Parallel Operation 5 1 Series operation MSeries operation is available by connecting the outputs of two or more power supplies as shown below Output current in series connection should be lower than the lowest rated current in each unit Power Supply Load Power Supply Power Supply Load Load Power Supply Fig 5 1 Examples of series operation 5 2 Redundancy operation Parallel operation is not possible Redundancy operation is available by wiring as shown below Power m gt gt Supply _ Load Power Supply _ Fig 5 2 Redundancy operation MeEven a slight difference in output voltage can affect the balance between the values of l and le Please make sure that the value of l3 does not exceed the rated current of a power supply la lt the rated current value COSEL Instruction Manual 6 Implementation Mounting Method 6 1 Mounting method The 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 Avoid placing the DC input line pattern layout underneath the unit it will inc
20. rease the line conducted noise Make sure to leave an ample distance between the line pattern layout and the unit Also avoid placing the DC output line pattern underneath the unit be cause it may increase the output noise Lay out the pattern away from the unit Avoid placing the signal line pattern layout underneath the unit this power supply might become unstable Lay out the pattern away from the unit Avoid placing pattern layout in hatched area in Fig 6 1 to insulate between pattern and power supply 40 9 14 14 VIN O VOUT o S RC o TRM o S VIN o VOUT a CES 37 8 5 19 VIN O VOUT o S RC o TRM o S VIN o VOUT b CES Type P 36 12 3 10 14 e A VIN o 4VOUT O S RC o o TRM o S VIN 9 o LVOUT c CQS Fig 6 1 Prohibition area of pattern lay out top view 6 2 Automatic Mounting CESseries option S MiTo mount CES series automatically use the transformer area near the center of the PCB as a adsorption point Please see the Exter nal View for details of the adsorption point If the bottom dead point of a suction nozzle is too low when mounting excessive force is applied to the transformer which could cause damage Please mount carefully 6 3 Soldering 1 Flow Soldering 260 C 15 seconds or less 2 Soldering Iron maximum 450 C 5 seconds or less 3 Reflow Soldering option
21. rent vs ambient temperature CQS24033 40 Vin 24V 28 os Load current A R convection cooling 0 2m s 7 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 28 Load current vs ambient temperature CQS24050 28 Vin 24V T 2 3 Le 8 4 convection cooling 0 2m s 1m s 2m s 0 40 20 0 20 40 60 80 Ambient temperature C Fig 8 29 Load current vs ambient temperature CQS24120 12 Vin 24V E p a 4 g 3 convection cooling 0 2m s 2 1m s 2m s 0 EEES 40 20 0 20 40 60 80 Ambient temperature C Fig 8 30 Load current vs ambient temperature CQS24150 8 Vin 24V 50 Ii 40 E 2 0 T Ss 30 E g 20 convection cooling 0 2m s 10 1m s 2m s 0 40 20 0 20 40 60 80 Fig 8 31 Load current vs ambient temperature CQS48015 50 Vin 48V Ambient temperature C 50 40 E x Ss 30 3 g 20 gt z 9 convection cooling 0 2m s 10 1m s 2m s 0 40 20 0 20 40 60 80 Fig 8 32 Load curr
22. t 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 3 VIN DC IN VIN Fig 3 3 Reverse input voltage protection 3 2 Wiring output pin MWhen the CES series or the CQS series supplies the pulse current for the pulse load please install capacitor Co between VOUT and VOUT pins Recommended capacitance of Co is shown in Table 3 2 lf output current is decreased rapidly output voltage rises tran siently and the overvoltage protection circuit may operate In this case please install capacitor Co Select the high frequency type capacitor Output ripple and start up waveform may be influenced by ESR ESL of the capacitor and the wiring impedance MMake sure that ripple current of Co should be less than rate Table 3 2 Recommended capacitance Co No Output voltage CES CQs 1 1 5 3 3V 0 20 000uF 0 40 000uF 5V 6V 0 10 000uF 0 20 000uF 12V 15V 0 1 000uF 0 2 2004F BRipple and Ripple Noise are measured as shown in the Fig 3 4 Cin is shown in Table 2 1 Somm Measuring board VIN VOUT N DG m S Cin ZZ Co Load Input RC E 22uF Osiloscope 15m500 BW 100MHz SR Coaxial cable Jl R 50Q C 0 01u F Fig 3 4 Measuring method of Ripple and Ripple Noise CE CQ 11
23. temperature C Fig 8 37 Load current vs ambient temperature CQS48150 8 Vin 48V CE CQ 22 9 SMDtype optionS package information These are packed in a tray Fig 1 1 Please order CESOO S for tray type packaging Capacity of the tray is 8max In case of fractions the units are stored in numerical order 37 5 y E m fT a pe pm 4 ep o ae UD E j l Dimensions in mm Material Conductive PS Fig 9 1 Delivery package information
24. voltage range O S 4 5 Remote sensing VOUT 3 2 Wiring output pin 2 Connection for Standard Use Min order to use the power supply it is necessary to wire as shown in Fig 2 1 Reference 3 Wiring Input Output Pin 8 Derating Short the following pins to turn on the power supply VINORC VOUT S VOUTO S l Reference 4 4 Remote ON OFF 4 5 Remote sensing The CES series and the CQS series handle only the DC input Avoid applying AC input directly It will damage the power supply Fuse One VIN VOUT ee DC Cin a S input peer RC E Load VIN VOUT Cin External capacitor on the input side Fig 2 1 Connection for standard use Table 2 1 Recommended External capacitor on the input side Model CES24 CQS24 Cin 2204F or more CES48033 30 CES48050 20 CES48060 17 Model CES48 CQS48 CES48033 30P CES48050 20P CES48120 7P Cin 33u4F or more 47uF or more 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 When the input voltage from a front end unit is supplied to multiple units install the normal blow type fuse in each unit Table 3 1 Recommended fuse Normal blow type CE CQ 10 Model CES24 CQS24 CES48 CQS48 Rated current 10A 15A 6 3A
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