DC-DC Converters

www.DataSheet4U.com 300WFS series Single & Dual Output DC/DC Converter NEW Approved for New Designs www.martekpower.com FEATURES • • • • • • • SMT Package Up to 83% Efficiency Single & Dual Output, 3 watt converter 2 - 1 Input Range 1500 VDC Input / Output Isolation Short Circuit Protection MTBF > 1,000,000 Hours DESCRIPTIONS The 300WFS series 3 watts power modules are high efficiency, surface mount dc-dc converters that operate over a wide input voltage range of 9 - 18 VDC, 18 - 36 VDC and 36 - 75 VDC and provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, ±5V, ±12V and ±15V. The -40oC to +71oC operating temperature range makes it ideal for data communication equipment, mobile battery driven equipment, distributed power systems, telecommunication equipment, mixed analog/digital subsystems, process/ machine control equipment, computer peripheral systems and industrial robot systems. INPUT CHARACTERISTICS Min Start Voltage 12 VDC Input Models 9 24 VDC Input Models 18 48 VDC Input Models 36 Input Fuse Requirements 12 VDC Input Models 24 VDC Input Models 48 VDC Input Models Reverse Polarity Input Current Short Circuit Input Power Input Filter Typ Max Unit/Comments 12 24 48 750 350 200 18 36 72 VDC VDC VDC mA; Slow blow type mA; Slow blow type mA; Slow blow type A 0.5 mW 1500 Pi Filter OUTPUT CHARACTERISTICS Min Typ Max Unit/Comments ±0.5 ±1.0 % Output voltage at nominal line & FL ±0.5 ±2.0 % Equal Output Output Voltage Balance (Duals) Loads ±0.1 ±0.3 % Output voltage Line Regulation measured from min. input line to maximum ±0.3 ±1.0 % Output voltage Load Regulation measured from FL to 10% load 50 75 mV p-p, Nom.Line Ripple/Noise @FL, 20MHz B.W., using 1 µf bypass capacitor 100 mV p-p, Over Line, Ripple/Noise Load & Temp., 20 MHz B.W., using 1 µf bypass capacitor Short Circuit Protection Continuous, Automatic Recovery ±2 ±6 % deviation of Vout Transient Response Deviation for a 25% load change 120 Over Power Protection % 200 500 µS for 25% load Transient Recovery Time change ±0.01 ±0.02 % per degree C Temperature Coefficient Output Voltage Set Point GENERAL CHARACTERISTICS Switching Frequency Isolation Voltage Isolation Resistance Isolation Capacitance MTBF (MIL-HBK-217F) Min Typ Max Unit/Comments kHz 300 VDC, 1 minute 1500 Mohm, 500VDC 1000 65 100 pF, 100kHz, 1Volt Million Hours, 1 +25oC, Ground Benign Martek Power reserves the right to change specifications without notice. B-37 www.DataSheet4U.com ENVIRONMENTAL SPECIFICATIONS Operating Temp. Range Operating Temp. Range Storage Temp. Range Relative Humidity Cooling Min -40 -40 -40 Typ Max +71 +90 +125 95 Unit/Comments o C; Ambient o C; Case o C % Humidity; noncondensing Free-Air Convection PHYSICAL CHARACTERISTICS Case Size Case Material Flammability Weight Unit/Comments 1.27 X 0.74 X 0.4 inches (32.3 X 18.8X 10.2 mm) Non-conductive Black Plastic UL94V-0 8.8 Grams max. OUTLINE DRAWING 0.702 (17.82) 24 23 22 15 14 13 TOP VIEW 1 2 3 0.100 (2.54) 1.27 (32.3) 10 11 12 0.020 (0.5) 0.40 (10.2) 0.20 (0.5) SIDE VIEW 0.09 (2.2) 0.58(14.8) 0.63 (16.1) 0.74 (18.8) 0.15 PIN OUT CHART Pins 1 2 3 10 11 12 13 14 15 22 23 24 Single - Vin - Vin NC NC NC NC + Vout NC - Vout NC + Vin + Vin Dual - Vin - Vin NC Common NC - Vout + Vout NC Common NC + Vin + Vin Notes: 1. Unless otherwise specified dimensions are in inches (mm). Tolerances Inches mm X.XX = ±0.02 X.X = ±0.5 X.XXX= ±0.010 X.XX = ±0.25 Pin : ±0.002 ±0.05 NC = No Connection All specifications are typical at nominal input, nominal load and 25° C unless otherwise specified. External, low ESR, 10 microfarad (minimum) capacitor across input is recommended for operation. B-38 www.DataSheet4U.com HOW TO ORDER HOW TO ORDER 3 XX S XX WFS - Y Wattage Output Voltage Output Configuration (S=Single, D=Dual) ROHS Compliant Series Nominal Input Range MODEL SELECTION CHART Model 303S12WFS 305S12WFS 312S12WFS 315S12WFS 305D12WFS 312D12WFS 315D15WFS 303S24WFS 305S24WFS 312S24WFS 315S24WFR 305D24WFS 312D24WFS 315D24WFS 303S48WFS 305S48WFS 312S48WFS 315S48WFS 305D48WFS 312D48WFS 315D48WFS Nominal Input Voltage (VDC) 12 12 12 12 12 12 12 24 24 24 24 24 24 24 48 48 48 48 48 48 48 Input Voltage Range (VDC) 9 - 18 9 - 18 9 - 18 9 - 18 9 - 18 9 - 18 9 - 18 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 36 - 72 36 - 72 36 - 72 36 - 72 36 - 72 36 - 72 36 - 72 Output Voltage (VDC) 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 Full Load Output Current (mA) 700 600 250 200 ±300 ±125 ±100 700 600 250 200 ±300 ±125 ±100 700 600 250 200 ±300 ±125 ±100 Input Current No Load Typ. (mA) 20 20 20 20 20 20 20 5 5 5 5 5 5 5 3 3 3 3 3 3 3 Efficiency @ FL (%) 75 79 82 82 78 81 81 76 80 83 83 79 82 82 76 80 83 83 79 82 82 B-39 www.DataSheet4U.com DERATING CURVES MODEL 300WFS Pout % 100 90 80 70 60 50 40 30 20 10 0 -40 100LFM Natural Convection 400LFM 200LFM 50 60 70 80 90 100 110 TEMPERATURE ° C B-40