MODULAR DC-DC CONVERTERS Wide Input Voltage Ranges Input Filters-
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5W-20W
MODULAR DC-DC CONVERTERS
Wide Input Voltage Ranges Input Filters-Built-in Suppression Model Includes Remote Shutdown Remote Load Sensing Remote Output Voltage Adjustment Short-Circuit/Over-Voltage Protection Compact Packages Six-Sided Shielding High Efficiency Ratings 2-Year Warranty 200,000-Hour Minimum MTBF
WITH
NON-ISOLATED
CHARACTERISTICS
Suppression.Pi input filter, standard. Reflected Ripple Current.DCU1-5, mApp, max. DCU1-20, mApp, max. Continuous Output Power.See output voltage/current ratings. Output Voltage Tolerance.DCU1-5, ±2%. DCU1-20WR/5, ±2%. other DCU1-20 models, ±1%. External Output Trim .DCU1-20-WR/5, +5%; other DCU120 models, ±5%. Output Noise Ripple.DCU1-5, mVpp, max. DCU1-20, mVpp, max. (Note Short-Circuit Protection.DCU1-5, pulsed overload type. DCU1-20, cycle-by-cycle current limiting; internal thermal shutdown. Over-Voltage Protection.130% rated output voltage, typ. Reverse Voltage Protection .Internal shunt diode. Transient Response .DCU1-5, recovery within regulation band after step load change with more than deviation. DCU1-20, recovery within regulation band after step load change with more than deviation. Frequency Operation .DCU1-5, kHz. DCU1-20, kHz. Remote Shutdown .DCU1-20, 0.5V VIN(MAX) open circuit; 0.25V less. Standby Mode Current Drain .DCU1-20 series, less than 24V. Temperature Range .-25°C +70°C, de-rating. Temperature Coefficient .±0.02%/°C over entire operating temperature range. Relative Humidity 95%, non-condensing. Altitude 10,000 feet. Cooling .Convection cooling adequate. Moving recommended operation confined area. Storage Temperature .-40°C +100°C. Storage Humidity 95%, non-condensing. Mean Time Between Failures .DCU1-5, >250,000 hours. DCU1-20, >200,000 hours. (Note
Input Current Max. Input Voltage Full Output Output Min. Nom.Max. Load Load Voltage Current Line Load Effi(V) Reg. Reg. ciency
Model
DC-DC Single Output
DCU1-5-WR/5 0.025 0.600 5.10 0.5% 0.5%
DC-DC Single Output
DCU1-20-WR/5 0.015 1.020 5.05 0.5% 1.0%
Notes
external input line fuse recommended: DCU1-5, 1.0A/125V slow-blow fuse. DCU1-20, 5A/125V slow-blow fuse. Peak-to-peak metering equipment must have frequency response with probes cables that maintain frequency response MHz. Output ripple spikes measured directly output terminals converter with ceramic capacitor. probe ground band must make direct contact with output return common terminal converter prevent erroneous noise measurements. measurements nominal input, full load, +25°C unless otherwise specified. MTBF calculated using parts stress method MIL-HDBK 217F (ground benign, +25°C).
POWER GENERAL Will Drive Canton, 02021 Phone 781-828-6216 781-830-1155 Email power@nidecpg.com http://www.nidec.com
5W-20W
MODULAR DC-DC CONVERTERS
WITH
NON-ISOLATED
DCU1-5 SERIES
Dimensions shown inches. Tolerances 0.00 ±0.02 inch. 0.000 ±0.005 inch. Module weight (42.5g).
DCU1-20 SERIES
Dimensions shown inches. Tolerances 0.00 ±0.02 inch. 0.000 ±0.005 inch. Module weight (213g).
OUTPUT TRIM
Pin-Out
Model Selection Guide
Series Number Outputs Output Power Output Voltage Input Voltage Wide Range)
DCU1-5 Series +VIN +VOUT VOUT
DCU1-20 Series +VIN +Sense Output Trim Sense +VOUT VOUT Remote On/Off
POWER GENERAL Will Drive Canton, 02021 Phone 781-828-6216 781-830-1155 Email power@nidecpg.com http://www.nidec.com
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