VER : A_0 update : 94.03.21 Encapsulated DC-DC Converter NI20 SERIES 20 Watts KEY FEATURES Non-Isolation Output Synchronous-rectifier Topologies High Efficiency High Power Density 2-Years Product Warranty ELECTRICAL SPECIFICATIONS Model No. Max. Output Wattage (W) Input Voltage (V.DC.) Output Voltage (V.DC.) NI20-5-1.5S 12W 5V (4.5-5.5V) 1.5V / 8000mA NI20-5-1.8S 14.4W 5V (4.5-5.5V) 1.8V / 8000mA NI20-5-2.1S 16.8W 5V (4.5-5.5V) 2.1V / 8000mA NI20-5-2.5S 20W 5V (4.5-5.5V) 2.5V / 8000mA NI20-5-3.3S 26.4W 5V (4.5-5.5V) 3.3V / 8000mA Efficiency 82% 86% 88% 89% 91% Model No. Max. Output Wattage (W) Input Voltage (V.DC.) Output Voltage (V.DC.) NI20-12-1.5S 12W 12V (4.5-13.5V) 5V / 8000mA NI20-12-1.8S 14.4W 12V (4.5-13.5V) 1.8V / 8000mA NI20-12-2.1S 16.8W 12V (4.5-13.5V) 2.1V / 8000mA NI20-12-2.5S 20W 12V (4.5-13.5V) 2.5V / 8000mA NI20-12-3.3S 26.4W 12V (4.5-13.5V) 3.3V / 8000mA Efficiency 81% 84% 85% 86% 89% Model No. Max. Output Wattage (W) Input Voltage (V.DC.) Output Voltage (V.DC.) NI20-12-5S 20W 12V (7-13.5V) 5V / 4000mA Efficiency 92% Model No. Max output wattage (W) Input Input Filter Voltage (V.DC.) Voltage Accuracy Current (mA) max Line Regulation (LL-HL) (typ.) Output Load Regulation (10-100%) (typ.) Ripple Noise Switching Frequency Over Power Protection Protection Short Circuit Protection Operating Temperature Storage Temperature Environment Temperature Coefficient Humidity MTBF Dimension (L x W x H) Case Material Physical Weight Cooling Method NI20-5-1.5S NI20-5-1.8S NI20-5-2.1S NI20-5-2.5S NI20-5-3.3S NI20-12-1.5S NI20-12-1.8S NI20-12-2.1S NI20-12-2.5S NI20-12-3.3S 12W 14.4W 16.8W 20W 26.4W 20W 3.3 5 8000 4000 Capacitor 1.5 1.8 2.1 2.5 ±2% 8000 8000 8000 8000 ±0.5% ±1% 200mV max (Vp-p) 200mV max (Vp-p) 200KHz Works over 120% of rating and shut down Current limit, shut down -25°C…+50°C (with derating) -55°C…+105°C ±0.02% Per°C 95% RH >1,000,000 h @ 25°C (MIL-HDBK-217F) 2.5 x 0.275 x 0.55 Inches ( 63.6 x 7.0 x 14.0 mm ) Tolerance ±0.5 mm Open Frame 10.5 g Free-air convection NI20-12-5S All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated. http://www.archcorp.com.tw TEL: +886-2-26989508 FAX: +886-2-26981319 -1- VER : A_0 update : 94.03.21 Encapsulated DC-DC Converter NI20 SERIES MECHANICAL DIMENSION 20 Watts ( Top View ) DERATING PIN# Single 1 +VOUT 2 +VOUT 3 NC 4 +VOUT 5 GND 6 GND 7 +VIN 8 +VIN 9 NC 10 NC 11 NC BLOCK DIAGRAM http://www.archcorp.com.tw TEL: +886-2-26989508 FAX: +886-2-26981319 -2-