SD-50 50W Single Output DC-DC Converter series Features : 2:1 wide input range Protections: Short circuit / Overload / Over voltage 1500VAC I/O isolation Built-in EMI filter, low ripple noise 100% full load burn-in test Fixed switching frequency at 83KHz Low cost High reliability 2 years warranty SPECIFICATION MODEL OUTPUT SD-50A-5 SD-50B-5 SD-50C-5 SD-50A-12 SD-50B-12 SD-50C-12 SD-50A-24 DC VOLTAGE 5V 12V 24V RATED CURRENT 10A 4.2A 2.1A CURRENT RANGE 0 ~ 10A 0 ~ 4.2A 0 ~ 2.1A RATED POWER 50W 50.4W 50.4W RIPPLE & NOISE (max.) Note.2 100mVp-p VOLTAGE ADJ. RANGE 4.5 ~ 5.5VDC 120mVp-p 150mVp-p 11 ~ 16VDC 23 ~ 30VDC VOLTAGE TOLERANCE Note.3 2.0% 1.0% 1.0% LINE REGULATION 0.5% 0.3% 0.2% LOAD REGULATION 0.5% 0.3% 0.2% SD-50B-24 SD-50C-24 80% 83% SETUP, RISE, HOLD UP TIME 2.5s, 50ms, ------ at full load INPUT VOLTAGE RANGE A:9.2 ~ 18VDC EFFICIENCY (Typ.) 70% DC CURRENT 7A/12V OVERLOAD 105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed PROTECTION OVER VOLTAGE WORKING TEMP. WORKING HUMIDITY ENVIRONMENT STORAGE TEMP., HUMIDITY TEMP. COEFFICIENT VIBRATION SAFETY STANDARDS SAFETY & WITHSTAND VOLTAGE ISOLATION RESISTANCE EMC (Note 4) MTBF DIMENSION PACKING NOTE 76% C:36 ~ 72VDC 72% 75% 78% 3A/24V 5.75 ~ 6.75V/10% load 74% 1.5A/48V 16.8 ~ 20V/10% load 31.5 ~ 37.5V/10% load Protection type : Hiccup mode, recovers automatically after fault condition is removed -10 ~ +60 (Refer to output load derating curve) 20 ~ 90% RH non-condensing -20 ~ +85 , 10 ~ 95% RH 0.03%/ (0 ~ 50 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes Design refer to LVD I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 EMI CONDUCTION & RADIATION Compliance to EN55022 (CISPR22) Class B EMS IMMUNITY OTHERS B:19 ~ 36VDC 73% / 70% RH Compliance to EN61000-4-2,3,4,6,8; ENV50204, EN55024, heavy industry level, criteria A 365.6K hrs min.(SD-50A) 357.5K hrs min.(SD-50B) 368.5K Hrs min.(SD-50C) MIL-HDBK-217F (25 ) 159*97*38mm (L*W*H) 0.48Kg; 24pcs/12.7Kg/0.75CUFT 1. All parameters NOT specially mentioned are measured at 12,24,48VDC 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. For guidance on how to perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com) File Name:SD-50-SPEC 2010-10-18 SD-50 50W Single Output DC-DC Converter Mechanical Specification Case No. 901 series Unit:mm 3.5 7 152.5 1 3 84.5 8.2 4 5 2-M 97 65 9.5 2 3 3.5 4.5 78 24 159 150 Terminal Pin No. Assignment 22 Pin No. 1 2 3 38 M3 3.5 28.5 9 3.5 3- 18 18.5 9 6.5 Pin No. 4 5 Assignment DC INPUT V+ DC INPUT VFG Assignment DC OUTPUT -V DC OUTPUT +V 117 Block Diagram fosc : 83KHz RECTIFIERS & FILTER EMI FILTER I/P RECTIFIERS & FILTER POWER SWITCHING FG O.L.P. +V -V DETECTION CIRCUIT PWM CONTROL O.V.P. Derating Curve Static Characteristics(SD-50C-24V) OUTPUT VOLTAGE (V) 100 80 SD-50A LOAD (%) 60 40 20 -10 -10 0 0 10 20 30 40 50 45 AMBIENT TEMPERATURE ( ) 60 55 (VERTICAL) (HORIZONTAL) 32 350 28 300 24 250 20 200 16 150 12 100 8 50 25 30 35 40 45 50 55 60 65 70 OUTPUT RIPPLE (mVp-p) Ta=25 SD-50B,C 72 INPUT VOLTAGE (V) File Name:SD-50-SPEC 2010-10-18