Datasheet
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UWS Series
Sixteenth-brick DOSA-Compatible,
Wide Input Isolated DC-DC Converters
MDC_UWS Series.D03 Page 4 of 25
OUTPUT
Conditions ➀
Minimum Typical/Nominal Maximum Units
Total Output Power See Derating 0.0 49.5 50 W
Voltage
Nominal Output Voltage No trim 3.267 3.3 3.333 Vdc
Setting Accuracy At 50% load ±1 % of Vnom.
Output Voltage Range User-adjustable -10 10 % of Vnom.
Overvoltage Protection Via magnetic feedback 4 4.3 4.9 Vdc
Current
Output Current Range Vin=18V-36V 0.0 13.0 A
Output Current Range Vin=36V-75V 0.0 15.0 A
Minimum Load No minimum load
Current Limit Inception 98% of Vnom., after warmup 18.4 21.9 25.4 A
Short Circuit
Short Circuit Current
Hiccup technique, autorecovery within ±1.25%
of Vout
0.6 A
Short Circuit Duration (remove short for
recovery)
Output shorted to ground, no damage Continuous
Short circuit protection method Current limiting
Regulation
➆
Line Regulation Vin=min. to max., Vout=nom., full load ±0.15 %
Load Regulation Iout=min. to max., Vin=48V ±0.3 %
Ripple and Noise
With a 1uF || 10uF output caps 90 125 mV pk-pk
With a 1uF || 100uF output caps 60 mV pk-pk
Temperature Coeffi cient At all outputs ±0.02 % of Vnom./°C
Remote Sense Compensation
18
Sense connected at load 10 % of Vout
Maximum Capacitive Load Constant resistance mode , low ESR 0 10,000 F
MECHANICAL
Outline Dimensions Cxx case 1.30x0.90x0.36 Inches
(Please refer to outline drawing) LxWxH 33.02x22.9x9.14 mm
Weight 0.48 Ounces
13.6 Grams
Through Hole Pin Diameter 0.04 & 0.060 Inches
1.016 & 1.524 mm
Through Hole Pin Material Copper alloy
TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches
Gold overplate 5 µ-inches
EMI/RFI Shielding None
ENVIRONMENTAL
Operating Ambient Temperature Range See derating, full power, natural convection -40 85 °C
Operating Case Temperature Range No derating, full power, natural convection -40 105 °C
Storage Temperature Vin = Zero (no power) -55 125 °C
Thermal Protection/Shutdown Measured in center 115 125 130 °C
Electromagnetic Interference External fi lter is required
Conducted, EN55022/CISPR22 B Class
RoHS rating ➃
RoHS-6
FUNCTIONAL SPECIFICATIONS, UWS-3.3/15-Q48 (CONT.)