NFM-20 20W Output Switching Power Supply series Features : Universal AC input / Full range Protections: Short circuit / Overload / Over voltage / Over temperature Ultra-miniature size, light weight Cooling by free air convection UL60601-1/IEC60601-1/EN60601-1 medical safety approved No load power consumption<0.75W 100% full load burn-in test Optional on-board type version available Fixed switching frequency at 90KHz High reliability 3 years warranty EN60601-1 IEC60601-1 SPECIFICATION MODEL DC VOLTAGE NFM-20-3.3 NFM-20-5 NFM-20-12 NFM-20-15 NFM-20-24 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 80mVp-p 150mVp-p 150mVp-p 240mVp-p 4.5 ~ 5.4V 10.8 ~ 13.2V 13.5 ~ 16.5V 21.6 ~ 26.4V RIPPLE & NOISE (max.) Note.2 80mVp-p OUTPUT INPUT VOLTAGE ADJ. RANGE 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 HOLD UP TIME (Typ.) 50ms/230VAC VOLTAGE RANGE 85 ~ 264VAC FREQUENCY RANGE 47 ~ 440Hz EFFICIENCY (Typ.) 71% AC CURRENT (Typ.) INRUSH CURRENT (Typ.) 0.6A/115VAC 16ms/115VAC at full load 120 ~ 370VDC 75% 81% 83% OVERLOAD Above 105% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed WORKING TEMP. WORKING HUMIDITY ENVIRONMENT STORAGE TEMP., HUMIDITY TEMP. COEFFICIENT VIBRATION SAFETY STANDARDS WITHSTAND VOLTAGE SAFETY & ISOLATION RESISTANCE EMC EMI CONDUCTION & RADIATION (Note 4) HARMONIC CURRENT EMS IMMUNITY MTBF DIMENSION PACKING 84% 0.4A/230VAC COLD START 30A/115VAC <200uA / 240VAC OVER TEMPERATURE Note.5 NOTE 500ms, 20ms/115VAC at full load LEAKAGE CURRENT PROTECTION OVER VOLTAGE OTHERS 3.1 ~ 3.6V 65A/230VAC 13.8 ~ 16.2V 3.8 ~ 4.46V 5.75 ~ 6.75V Protection type : Shut off o/p voltage, clamping by zener diode Tj 160 typically (U1) detect on main control IC 17.25 ~ 20.25V 27.6 ~ 32.4V Protection type : Shut down o/p voltage, recovers automatically after temperature goes down -20 ~ +60 (Refer to output load derating curve) 20 ~ 90% RH non-condensing -40 ~ +85 , 10 ~ 95% RH 0.03%/ (0 ~ 50 ) 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes UL60601-1,TUV EN60601-1, IEC60601-1 approved I/P-O/P:4KVAC I/P-FG:1.5KVAC O/P-FG:1.5KVAC I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC Compliance to EN55011(CISPR11),EN55022 (CISPR22) Class B Compliance to EN61000-3-2,-3 Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, EN55024, EN60601-1-2, EN61204-3, medical level, criteria A 487.8Khrs min. MIL-HDBK-217F (25 ) 89*51*19.3mm (L*W*H) 0.09Kg; 105pcs/10.5Kg/0.97CUFT 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25 of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance : includes set up tolerance, line regulation and load regulation. 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. 5. The over temperature protection (OTP) is the built-in function of the control IC (U1). The activating level described above is based on the specification provided by the IC manufacturer. File Name:NFM-20-SPEC 2007-09-19 NFM-20 20W Output Switching Power Supply Mechanical Specification series 0.15"(3.8mm) Unit:inch(mm) 3.5"(88.9mm) 0.15" (3.8mm) 3.2"(81.3mm) 4-0.13"(3.3mm) Dia Mounting Holes T2A/250V 1.7"(43.2mm) CN1 2"(50.8mm) CN2 1 2 3 3 2 1 4 T2A/250V FG FG 0.76"(19.3mm) To Chassis Grounding AC Input Connector (CN1) : Molex 41791-03 or equivalent Pin No. 1 2 3 Assignment AC/N No Pin AC/L Mating Housing Terminal Molex 2139 or equivalent Molex 2478 or equivalent DC Output Connector (CN2) : Molex 41791-04 or equivalent Pin No. 1,2 3,4 Assignment +V -V Mating Housing Terminal Molex 2139 or equivalent Molex 2478 or equivalent Block Diagram fosc : 90KHz POWER SWITCHING RECTIFIERS & FILTER EMI FILTER I/P RECTIFIERS & FILTER PWM CONTROL DETECTION CIRCUIT FG Derating Curve +V -V Output Derating VS Input Voltage Ta=25 100 100 90 80 80 70 LOAD (%) LOAD (%) 60 40 20 -20 0 10 20 30 40 50 AMBIENT TEMPERATURE ( ) 60 70 (HORIZONTAL) 60 50 40 85 95 100 115 120 140 160 180 200 220 240 264 INPUT VOLTAGE (VAC) 60Hz File Name:NFM-20-SPEC 2007-09-19