NPH15S Series www.murata-ps.com Isolated 15W Single Output DC/DC Converters SELECTION GUIDE Nominal Input Output Output 2 Current Limit Efciency MTTF 1 Voltage Voltage Current Order Code V V A A (Min.) A (Max.) % kHrs NPH15S2403EiC 24 3.4 4.4 7.5 11.0 81 335 NPH15S2403iC 24 3.4 4.4 7.5 11.0 81 335 NPH15S2405EiC 24 5.1 3.0 5.0 7.5 84 286 FEATURES NPH15S2405iC 24 5.1 3.0 5.0 7.5 84 286 RoHS compliant NPH15S2412EiC 24 12.1 1.3 2.5 3.7 86 286 High efciency to 89% NPH15S2412iC 24 12.1 1.3 2.5 3.7 86 286 NPH15S2415EiC 24 15.1 1.0 2.0 3.0 87 281 3 Power density up to 2.4W/cm NPH15S2415iC 24 15.1 1.0 2.0 3.0 87 281 UL 94V-0 package material NPH15S4803EiC 48 3.4 4.4 7.5 11.0 83 295 NPH15S4803iC 48 3.4 4.4 7.5 11.0 83 295 Industry standard pinout NPH15S4805EiC 48 5.1 3.0 5.0 7.5 85 301 UL 1950 recognized NPH15S4805iC 48 5.1 3.0 5.0 7.5 85 301 NPH15S4812EiC 48 12.1 1.3 2.5 3.7 88 302 Non latching current limit NPH15S4812iC 48 12.1 1.3 2.5 3.7 88 302 Constant 350kHz frequency NPH15S4815EiC 48 15.1 1.0 2.0 3.0 89 296 1.5kV input to output isolation NPH15S4815iC 48 15.1 1.0 2.0 3.0 89 296 Versatile control options INPUT CHARACTERISTICS Continuous rating to 30W at 40C without Parameter Conditions Min. Typ. Max. Units heatsink Continuous operation, 24V input types 18 24 36 Voltage range V Continuous operation, 48V input types 36 48 75 Operation to zero load Protected against load faults OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Internal over temperature protection Voltage set point error 50% load 0.5 % Uses no electrolytic capacitors Case temperature -40C to 110C Overall voltage error Load 0% - 100% 2.5 % DESCRIPTION Input specied range The NPH15S series of DC/DC converters combines Temperature coefcient 250 ppmC ease of application with versatility. The pin pattern of output voltage (slope) is based on the popular industry standard, but two Deviation of output Temperature MIN-MAX 0.5 1 % additional pins may optionally be tted to provide voltage a variety of features not commonly found on units Line regulation Operating voltage range, 50% load 0.1 % of this type. High efciency enables full rating to Load Regulation 0% - 100% rated load 0.5 % be achieved in a small package without heat- Ripple rms 70 mV sinking, and a high surge capability will provide for start-up and transient loads, whilst being ISOLATION CHARACTERISTICS thermally protected against sustained overload. Parameter Conditions Min. Typ. Max. Units Overload protection of the constant current type Isolation test voltage Flash tested for 1 second 1500 VDC ensures start-up into complex load conditions. The Resistance VISO = 500VDC 1 G copper case achieves efcient heat transfer and screening. The product range has been recog- ABSOLUTE MAXIMUM RATINGS nised by Underwriters Laboratory (UL) to UL 1950 3 Input voltage, 24V input types -0.5V to 40V for operational insulation, le number E151252 3 Input voltage, 48V input types -0.5V to 80V applies. Output voltage -0.3V to regulated voltage Output trim control -1V to +30V Synchronisation/shutdown control 15V relative to input return 1. Parts ending with EiC have optional TRIM and SS pins tted. 2. Calculated using MIL-HDBK-217F with nominal input voltage at full load. For full details go to 3. Absolute maximum value for 30 seconds. Prolonged operation may damage the product. www.murata-ps.com/rohs All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied. www.murata-ps.com/support KDC NPH15S.F05 Page 1 of 8NPH15S Series Isolated 15W Single Output DC/DC Converters CONTROL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units 1 Voltage trimming range At rated load, trim control at either output 10 % Not operating -15 0 1.5 Remote switch input (voltage relative to V 1 input negative) Operating, open circuit voltage 9 10 11 Time from application of valid input voltage to output being in speci- Start delay 25 50 ms cation 1 Synchronisation Specied drive signal 320 440 kHz Switching frequency 330 350 395 kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Case temperature Full load -40 110 C Storage Absolute Max. internal temperature -40 125 Relative humidity Non condensing 85C 85 % Thermal protection Operates at case temperature 110 C THERMAL CHARACTERISTICS UL 1950 recognition: Max. permissable loads for a given ambient temperature for any NPH15S model. Temperature (C) Power (W) Temperature (C) Power (W) 40 15.0 70 11.7 50 15.0 80 9.8 53 15.0 85 8.8 60 13.7 90 7.8 Max. power rating with case temperature maintained by external means (e.g. forced air cooling). Case Temperature Part Number Units 100C 105C 110C NPH15S2403XXX 19 16 12 NPH15S2405XXX 22 19 15 W NPH15S2412XXX 25 22 19 NPH15S2415XXX 26 24 21 NPH15S4803XXX 20 17 13 NPH15S4805XXX 23 20 16 W NPH15S4812XXX 28 26 23 NPH15S4815XXX 30 28 25 THERMAL PERFORMANCE 24V Input 48V Input 0VUQVU 1XFS 8 P 0VUQVU 1PXFS 8 FNQFSB UVSF 5NCJFOU FNQFSB UVSF 5NCJFOU 1. Optional - where tted. www.murata-ps.com/support KDC NPH15S.F05 Page 2 of 8