Datasheet

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ULS 30-Watt Series
Sixteenth-brick DOSA-Compatible,
Isolated DC/DC Converters
MDC_ULS-30W_C07 Page 14 of 30
OUTPUT
Conditions
➀
Minimum Typical/Nominal Maximum Units
Total Output Power See Derating 0 30 30 W
Voltage
Nominal Output Voltage No trim 11.88 12.00 12.12 Vdc
Setting Accuracy At 50% load, no trim -1 +1 % of Vnom
Output Voltage Range User-adjustable -20 +10 % of Vnom.
Overvoltage Protection Via magnetic feedback 13.3 15 18 Vdc
Current
Output Current Range 0.0 2.5 2.5 A
Minimum Load No minimum load
Current Limit Inception 98% of Vnom., after warmup 3.3 3.5 4.5 A
Short Circuit
Short Circuit Current
Hiccup technique, autorecovery within ±1.25%
of Vout
40 mA
Short Circuit Duration (remove short for
recovery)
Output shorted to ground, no damage Continuous
Short circuit protection method Current limiting
Regulation ➅
Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.125 % of Vout
Load Regulation Iout = min. to max., Vin = 48V ±0.125 % of Vout
Ripple and Noise 5 Hz- 20 MHz BW 130 150 mV pk-pk
Temperature Coeffi cient At all outputs ±0.02 % of Vout./°C
Maximum Capacitive Loading Low ESR, resistive load only 0 2200 F
MECHANICAL (Through Hole Models)
Conditions ➀ ➂
Outline Dimensions 1.30x0.90x0.36 Inches
(Please refer to outline drawing) LxWxH 33.02x22.86x9.144 mm
Weight 0.58 Ounces
16.4 Grams
Through Hole Pin Diameter 0.04 & 0.062 Inches
1.016 & 1.575 mm
Through Hole Pin Material Copper alloy
TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches
Gold overplate 5 µ-inches
ENVIRONMENTAL
Operating Ambient Temperature Range With Derating -40 85 °C
Operating Case Temperature Range No derating, full power -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
Radiated, EN55022/CISPR22 B Class
Relative humidity, non-condensing To +85°C 10 90 %RH
Altitude must derate -1%/1000 feet -500 10,000 feet
-152 3048 meters
RoHS rating ➃
RoHS-6
FUNCTIONAL SPECIFICATIONS, ULS-12/2.5-D48 (CONT.)
Performance Specifi cation Notes
➀ Unless otherwise noted, all specifi cations are typical at nominal input voltage, nominal output voltage
and full load. General conditions are +25° Celsius ambient temperature, near sea level altitude,
natural convection airfl ow. All models are tested and specifi ed with external parallel 1 µF and 10 µF
multi-layer ceramic output capacitors. The external input capacitor is 22 µF ceramic. All capacitors
are low-ESR types wired close to the converter. These capacitors are necessary for our test equip-
ment and may not be needed in the user's application.
➁ Input (back) ripple current is tested and specifi ed over 5 Hz to 20 MHz bandwidth. Input fi ltering is
Cbus = 220 µF/100V, Cin = 33 µF/100V and Lbus = 12 µH.
➂ All models are stable and regulate to specifi cation under no load.
➃ Reduction of Hazardous Substances (RoHS) compliance is to RoHS-6 (six substances restricted
including lead). See specifi cations.
➄ The Remote On/Off Control is referred to -Vin.
➅ Regulation specifi cations describe the output voltage changes as the line voltage or load current is
varied from its nominal or midpoint value to either extreme.