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COSEL Power Supply, Noise Filter 2025 Product Catalog
DC-DC Converters POL TypeInstruction Manual+VINSYNC+VOUT4 Series and Parallel OperationDCInputV SYNCGNDLoad4.1 Series operation!Series operation is not possible.Fig 3.10 Example of frequency synchronization4.2 Parallel operationVSYNCDuty50%!Parallel operation is not possible.!Redundancy operation is available by wiring as shown below.0tPowerSupply+-I1I3Fig 3.11 Recommended wave form of SYNCTable 3.3 Specifi cation of SYNC pin voltageVSYNCNo. VIN Lo levelHi levelmin max min max1 [5.5VVIN-1.0V-0.2V 0.3V 2.0V2 >5.5V 4.5V!As shown in Fig.3.12, frequency synchronization is possible withoutusing an outside clock.PowerSupply+-I2Fig.4.1 Redundancy operation!Even a slight difference in output voltage can affect the balancebetween the values of I1 and I2.Please make sure that the value of I3 does not exceed the ratedcurrent of the power supply.LoadDCInputZDCLK+VIN +VOUTCLK(NC)BRNSGNDLoad5 CleaningI3 [ the rated current value+VIN +VOUTSYNCBRNSGNDLoad!When cleaning is necessary, clean under the following conditions.Method : Varnishing, ultrasonic wave and vaporCleaning agents : IPA (Solvent type)Total time : 2 minutes or less!Do not apply pressure to the lead and name plate with a brush orscratch it during the cleaning.!After cleaning, dry them enough.Fig.3.12 Example of CLK pin connection.!The maximum synchronization number is 5.!After the power supply which output CLK started, please start thesynchronizing power supplies. And when stop power supplies, youshould stop the powersupply which output CLK at fi rst.!The max voltage of CLK pin is DC input voltage.!Please connect ZDCLK when the voltage more than 5.5V is inputinto SYNK pin.(refer to Table.3.3)!It is not possible to shorten rise time when not using this function.BRNS-11
