20W DC-DC Regulated Single Output Converter SKA20 series Features : 2 1 compact size 2:1 wide input range High efficiency up to 89.5% 1500VDC I/O isolation Built-in remote ON/OFF control Built-in trimming output Built-in EMI filter Protections: Short circuit / Overload / Input and Output Over voltage Cooling by free air convection Six-sided shield metal case 100% burn-in test Low cost / High reliability Approvals: FCC / CE 2 years warranty SPECIFICATION ORDER NO. SKA20A-05 SKA20B-05 SKA20C-05 SKA20A-12 SKA20B-12 SKA20C-12 SKA20A-15 SKA20B-15 SKA20C-15 DC VOLTAGE 5V 12V 15V CURRENT RANGE 400 ~ 4000mA 166 ~ 1666mA 133 ~ 1333mA RATED POWER 20W RIPPLE & NOISE (max.) Note.2 50mVp-p 60mVp-p 60mVp-p 0.2% LINE REGULATION Note.3 OUTPUT LOAD REGULATION Note.4 0.5% VOLTAGE ACCURACY 2.0% SWITCHING FREQUENCY 300KHz typ. EXTERNAL CAPACITANCE LOAD (max.) 1000uF 220uF 100uF EXTERNAL TRIM Adj. RANGE(Typ.) 10% -20 ~ +10% -20 ~ +10% VOLTAGE RANGE A: 9 ~ 18VDC B: 18 ~ 36VDC C: 36 ~ 75VDC 88% EFFICIENCY (Typ.) 87.5% 88% 88.5% 88.5% 87.5% 89% 89.5% 88% Full load 1910mA 970mA 490mA 1910mA 970mA 500mA 1870mA 950mA 490mA DC CURRENT INPUT No load 80mA 55mA 40mA 35mA 25mA 15mA 35mA 25mA 15mA FILTER Pi network Power ON : R.C ~ -Vin > 2.5VDC or open circuit Power OFF : R.C ~ -Vin < 0.5VDC or short REMOTE CONTROL PROTECTION Fuse recommended 110% ~ 180% rated output power OVER CURRENT Protection type : Hiccup mode, recovers automatically after fault condition is removed PROTECTION All output equipped with short circuit SHORT CIRCUIT (Note. 5) Protection type : Hiccup mode, recovers automatically after fault condition is removed Input(Typ.) A: >20 ~ 23VDC B: >40 ~ 43VDC C: >80 ~ 82VDC input voltage OVER VOLTAGE Output Protection type : Shut down o/p voltage, recovers automatically after fault condition is removed -40 ~ +85 (Refer toDerating Curv) WORKING TEMP. WORKING HUMIDITY 20% ~ 90% RH non-condensing STORAGE TEMP., HUMIDITY -55 ~ +125 , 10 ~ 95% RH ENVIRONMENT 0.03% / (0 ~ 50 ) TEMP. COEFFICIENT 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes VIBRATION WITHSTAND VOLTAGE I/P-O/P:1.5KVDC I/P-O/P: 100M Ohms / 500VDC / 25 / 70% RH SAFETY & ISOLATION RESISTANCE EMC EMC EMISSION Compliance to EN55022 Class A, FCC part 15 Class A EMC IMMUNITY Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A MTBF 700Khrs min. MIL-HDBK-217F(25 ) OTHERS DIMENSION 50.8*25.4*11.2 mm or 2 *1 *0.44 inch (L*W*H) 31.2g WEIGHT Pin Configuration Derating Curve Mechanical Specification Unit:mm(inch) 20.4 0.80 5.8 Pin No. Output Pin No. Output 0.23 1 +Vin 4 Trim 7.62 5.08 0.30 0.20 2 -Vin 5 -Vout 100 3 +Vout 6 R.C 6 2 1 NOTE: Pin Size is Tolerance 1.0 0.10mm BOTTOM SIDE 50 External Output Trimming VIEW VIEW 2 3 5 4 3 -Vin +Vout 10.2 LOAD 20K 0.40 5 VR -40 0 25 50 75 85 100 -Vout VR Ta ( ) 1 4 +Vin Trim 25.4 1.00 11.2 0.44 UP DOWN TRIMPOT 1.All parameters are specified at normal input, rated load, 25 70% RH ambient. NOTE 2.Ripple & noise are measured at 20MHz by using a 12 twisted pair terminated with a 0.1uf & 47uf capacitor. 3.Line regulation is measured from low line to high line at rated load. 4.Load regulation is measured from 10% to 100% rated load. 5.Please prevent the converter from operating in overload or short circuit condition for more than 30 seconds. File Name:SKA20-SPEC 2012-01-07 50.8 2.00 15.24 0.60 20.32 0.80 LOAD (%)