20W Output Switching Power Supply NF M -20 series SPECIFICATION MODEL NFM-20-3.3 NFM-20-5 NFM-20-12 NFM-20-15 NFM-20-24 DC VOLTAGE 3.3V 5V 12V 15V 24V RATED CURRENT 4.5A 4.4A 1.8A 1.4A 0.92A CURRENT RANGE 0 ~ 4.5A 0 ~ 4.4A 0 ~ 1.8A 0 ~ 1.4A 0 ~ 0.92A RATED POWER 14.85W 22W 21.6W 21W 22.08W RIPPLE & NOISE (max.) Note.2 80mVp-p 80mVp-p 150mVp-p 150mVp-p 240mVp-p OUTPUT VOLTAGE ADJ. RANGE 3.1 ~ 3.6V 4.5 ~ 5.4V 10.8 ~ 13.2V 13.5 ~ 16.5V 21.6 ~ 26.4V VOLTAGE TOLERANCE Note.3 2.0% 2.0% 1.0% 1.0% 1.0% LINE REGULATION 1.0% 1.0% 0.5% 0.5% 0.5% LOAD REGULATION 1.5% 1.5% 0.5% 0.5% 0.5% SETUP, RISE TIME 500ms, 20ms/230VAC 500ms, 20ms/115VAC at full load HOLD UP TIME (Typ.) 50ms/230VAC 15ms/115VAC at full load VOLTAGE RANGE 85 ~ 264VAC 120 ~ 370VDC FREQUENCY RANGE 47 ~ 440Hz EFFICIENCY (Typ.) 71% 75% 81% 83% 84% INPUT AC CURRENT (Typ.) 0.6A/115VAC 0.4A/230VAC INRUSH CURRENT (Typ.) COLD START 30A/115VAC 65A/230VAC LEAKAGE CURRENT Note.6 Earth leakage current < 300 A/264VAC , Touch current < 100 A/264VAC Above 105% rated output power OVERLOAD Protection type : Hiccup mode, recovers automatically after fault condition is removed 13.8 ~ 16.2V 17.25 ~ 20.25V 27.6 ~ 32.4V 3.8 ~ 4.46V 5.75 ~ 6.75V PROTECTION OVER VOLTAGE Protection type : Shut off o/p voltage, clamping by zener diode OVER TEMPERATURE Note.5 Shut down o/p voltage, recovers automatically after temperature goes down WORKING TEMP. -20 ~ +60 (Refer toDerating Curv) 20 ~ 90% RH non-condensing WORKING HUMIDITY -40 ~ +85, 10 ~ 95% RH STORAGE TEMP., HUMIDITY ENVIRONMENT TEMP. COEFFICIENT 0.03%/ (0 ~ 50) VIBRATION 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes SAFETY STANDARDS ANSI/AAMI ES60601-1,TUV EN60601-1, IEC60601-1 approved ISOLATION LEVEL Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP SAFETY & WITHSTAND VOLTAGE I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC ISOLATION RESISTANCE EMC I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25/ 70% RH (Note 4) EMC EMISSION Compliance to EN55011(CISPR11),EN55022 (CISPR22) Class B, EN61000-3-2,-3 EMC IMMUNITY Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN60601-1-2, EN61204-3, medical level, criteria A MTBF 487.8Khrs min. MIL-HDBK-217F (25) OTHERS DIMENSION 89*51*19.3mm (L*W*H) 0.09Kg 105pcs/10.5Kg/0.97CUFT PACKING NOTE File Name:NFM-20-SPEC 2015-08-0620W Output Switching Power Supply NF M -20 series Mechanical Specification Unit:inch(mm) 3.5 (88.9mm) 0.15 (3.8mm) 3.2 (81.3mm) 4-0.12 (3.0mm) Dia Mounting Holes T2A/250V CN2 3 1 2 2 3 1 4 T2A/250V 1.M1 is safety ground. For better EMC M1 M2 performance,Please secure an electrical connection between M1,M2 and chassis grounding. AC Input Connector (CN1) : Molex 41791-03 or equivalent DC Output Connector (CN2) : Molex 41791-04 or equivalent Pin No. Assignment Mating Housing Terminal Pin No. Assignment Mating Housing Terminal 1 AC/N 1,2 +V Molex 2139 Molex 2478 Molex 2139 Molex 2478 or equivalent or equivalent 2 No Pin 3,4 -V or equivalent or equivalent 3 AC/L : Grounding Required Block Diagram fosc : 90KHz RECTIFIERS RECTIFIERS EMI POWER +V I/P & & SWITCHING FILTER -V FILTER FILTER PWM DETECTION CONTROL FG CIRCUIT Derating Curve Output Derating VS Input Voltage 100 100 90 80 80 60 70 60 40 50 20 40 -20 0 10 20 30 40 50 60 70 (HORIZONTAL) 85 95 100 115 120 140 160 180 200 220 240 264 AMBIENT TEMPERATURE () INPUT VOLTAGE (VAC) 60Hz File Name:NFM-20-SPEC 2015-08-06 LOAD (%) 2 (50.8mm) 0.76 (19.3mm) 0.15 (3.8mm) 1.7 (43.2mm) CN1 LOAD (%)