NCS3 Series www.murata-ps.com Isolated 3W 4:1 Input Single Output DC/DC Converters SELECTION GUIDE Efciency Rated Input Rated Efciency Ripple and 1 12V or 48V MTTF Current Input 24V Input. Noise 12V or 48V Current Order Code Input. Input. 24V Input. Nom. Min. Typ. Min. Typ. Typ. Max. V V % mA mA mA % % % % mVp/p mVp/p kHrs NCS3S1203SC 12 3.3 10 250 125 700 74 77 73 76 32 55 1335 NCS3S1205SC 12 5 5 305 150 600 79 82 79 81 34 60 1081 NCS3S1212SC 12 12 0 300 150 250 81 84 80 83 28 55 1272 NCS3S1215SC 12 15 0 300 150 200 82 86 81 85 20 50 1617 NCS3S4803SC 48 3.3 10 124 65 700 70 74 74 77 22 55 1327 NCS3S4805SC 48 5 5 153 80 600 77.5 80 79 81 36 75 1117 FEATURES NCS3S4812SC 48 12 0 150 80 250 77 81 80 83 31 65 1211 UL 60950 recognised NCS3S4815SC 48 15 0 149 80 200 78 81 81 83 22 55 1574 4:1 Wide range voltage input INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Operating temperature range -40C to 85C 12V input types 9 12 36 with derating Voltage range V 48V input types 18 48 75 1.5 kVDC Isolation Hi Pot Test 12V input types 5.5 NCS3S12XX 24V input types 2 3.3V, 5V, 12V & 15V outputs Input reected ripple mA p-p current 24V input types 3.5 No electrolytic capacitors NCS3S48XX 48V input types 2 Continuous short circuit protection Power consumption at shutdown 2 mW Input current in shutdown 2.5 mA PRODUCT OVERVIEW The NCS3 series of DC/DC converters offers a OUTPUT CHARACTERISTICS single output voltage from input voltage ranges Parameter Conditions Min. Typ. Max. Units of 9-36V and 18-75V. The NCS3 is housed in an 3.3V output types 2.31 Rated power W industry standard package with a standard pinout. All other output types 3 Voltage set point accuracy All output types 1 2 % Applications include telecommunications, battery Line regulation Low line to high line 0.5 % powered systems, process control and distributed Load regulation All output types 1 % power systems. Peak deviation (12.5-37.5% & 37.5-12.5% swing) 5 %Vout Transient response Settling time 1.5 ms (within 5% V Nom.) out GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units CTRL input current Please refer to control pin application note 2 8 mA ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 minute 1500 VDC NCS3S12XXSC 180 Isolation Capacitance pF NCS3S48XXSC 185 Resistance Viso = 1kVDC 1 G TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Operation See derating graphs -40 85 Storage -50 115 C Case temperature rise above 100% Load, Nom VIN, Still Air 30 40 ambient 1 Calculated using MIL-HDBK-217 FN2, parts stress method with nominal input voltage at full load. For full details go to All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied. www.murata-ps.com/rohs www.murata-ps.com All enquiries: www.murata-ps.com/support KDC NCS3 B02 Page 1 of 10 Input Voltage Output Voltage Minimum Load Output CurrentNCS3 Series Isolated 3W 4:1 Input Single Output DC/DC Converters ABSOLUTE MAXIMUM RATINGS Short-circuit protection (for SELV input voltages) Continuous Control pin input current 8mA Lead temperature 1.0mm from case for 10 seconds (to JEDEC JESD22-B106 ISS C) 260C Input voltage, NCS3 12V input types 40V Input voltage, NCS3 24V input types 80V SWITCHING FREQUENCY Parameter Conditions Min. Typ. Max. Units 10% Load 1200 12V input types 100% Load 280 NCS3S1203SC kHz 10% Load 1620 24V input types 100% Load 460 10% Load 1200 12V input types 100% Load 270 NCS3S1205SC kHz 10% Load 1690 24V input types 100% Load 490 10% Load 1220 12V input types 100% Load 310 NCS3S1212SC kHz 10% Load 1680 24V input types 100% Load 570 10% Load 1130 12V input types 100% Load 310 NCS3S1215SC kHz 10% Load 1580 24V input types 100% Load 570 10% Load 1020 24V input types 100% Load 270 NCS3S4803SC kHz 10% Load 1440 48V input types 100% Load 450 10% Load 1190 24V input types 100% Load 260 NCS3S4805SC kHz 10% Load 1590 48V input types 100% Load 470 10% Load 1180 24V input types 100% Load 1570 NCS3S4812SC kHz 10% Load 310 48V input types 100% Load 560 10% Load 1180 24V input types 100% Load 330 NCS3S4815SC kHz 10% Load 1590 48V input types 100% Load 610 APPLICATION NOTES Recommended Input Capacitor and Maximum Output Capacitance A 10 F output capacitor is recommended for stability under all operating conditions. Maximum output capacitance should not exceed: Output Voltage MaximumLoad Capacitance VF 3.3 470 5 470 12 220 15 110 www.murata-ps.com All enquiries: www.murata-ps.com/support KDC NCS3 B02 Page 2 of 10