SD-25 25W Single Output DC-DC Converter series Features : 2:1 wide input range Protections:Short circuit/Over load/Over voltage 1500VDC 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 1 year warranty SPECIFICATION MODEL OUTPUT INPUT SD-25A-5 SD-25C-12 SD-25A-24 RATED CURRENT 5A 2.1A 1.1A CURRENT RANGE 0 ~ 5A 0 ~ 2.1A 0 ~ 1.1A RATED POWER 25W 25.2W 26.4W 120mVp-p 150mVp-p 11 ~ 16VDC 23 ~ 30VDC RIPPLE & NOISE (max.) Note.2 100mVp-p VOLTAGE ADJ. RANGE 4.5 ~ 5.5VDC 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% SETUP, RISE, HOLD TIME 2.5s, 50ms, ------ at full load VOLTAGE RANGE A:9.2 ~ 18VDC EFFICIENCY (Typ.) 71% DC CURRENT 3.2A/12V OVER LOAD 105 ~ 150% rated output power Protection type : Fold back current limiting, recovers automatically after fault condition is removed WORKING HUMIDITY ENVIRONMENT STORAGE TEMP., HUMIDITY TEMP. COEFFICIENT VIBRATION SAFETY STANDARDS SAFETY & WITHSTAND VOLTAGE B:19 ~ 36VDC 72% 74% SD-25C-24 78% 81% C:36 ~ 72VDC 72% 75% 78% 1.6A/24V 5.75 ~ 6.75V/10% load SD-25B-24 75% 0.8A/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 ISOLATION RESISTANCE I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC EMI CONDUCTION & RADIATION Compliance to EN55022 (CISPR22) Class B EMS IMMUNITY Compliance to EN61000-4-2,3,4,6,8; ENV50204, EN55024,heavy industry level, criteria A MTBF 374.3K hrs min.(SD-25A) 365.9K hrs min.(SD-25B) 99*97*36mm (L*W*H) 0.38Kg; 45pcs/17.8Kg/0.9CUFT DIMENSION PACKING NOTE SD-25B-12 24V WORKING TEMP. OTHERS SD-25A-12 12V OVER VOLTAGE (Note 4) SD-25C-5 5V PROTECTION EMC SD-25B-5 DC VOLTAGE 377.5K Hrs min.(SD-25C) MIL-HDBK-217F (25 ) 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. File Name:SD-25-SPEC 2004-06-30 SD-25 50W Single Output DC-DC Converter Mechanical Specification Case No. 905 20.5 Unit:mm 5 3.5 51.5 36 55 series 9.5 5.5 M 3 97 4 55.5 2- 3 8.2 2 1 3.5 4.5 89 98.5 6.5 3 3.5 74 18 36 2-M 28 3.5 17.5 7 87 Terminal Pin. No Assignment Pin No. 1 2 3 Assignment DC INPUT VDC INPUT V+ FG Pin No. 4 5 Assignment DC OUTPUT +V DC OUTPUT -V Derating Curve Static Characteristics(SD-25C-24V) OUTPUT VOLTAGE (V) 100 80 SD-25A SD-25B-5 SD-25C-5 LOAD (%) 60 40 20 -10 -10 0 0 10 20 30 40 AMBIENT TEMPERATURE ( 50 45 ) 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-25B,C/12,24 72 INPUT VOLTAGE (V) File Name:SD-25-SPEC 2004-06-30