Datasheet
DRQ-12/50-L48 Series
600W Digital Fully Regulated
Intermediate DC-DC Bus Converter
MDC_DRQ-12/50-L48NK.B02 Page 4 of 26
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OUTPUT
Conditions
➀
Minimum Typical/Nominal Maximum Units
Total Output Power 0 600 612 W
Voltage
Nominal Output Voltage No trim, all conditions 11.76 12 12.24 Vdc
Setting Accuracy At 50% load, no trim -2 2 % of Vnom
Output Voltage @Vin=48V, Iout=0, Ta=+25°C 11.95 12.05 Vdc
Overvoltage Protection Via magnetic feedback 13.8 14.4 15.6 Vdc
Current
Output Current Range 050A
Minimum Load
Current Limit Inception 90% of Vout, after warmup 56 58 60 A
Short Circuit
Short Circuit Current
Hiccup technique, autorecovery within ±1.25%
of Vout
0.4 1 A
Short Circuit Duration
(remove short for recovery)
Output shorted to ground, no damage Continuous
Short circuit protection method Current limiting
Regulation ➄
Line Regulation 40 100 mV
Load Regulation Iout = min. to max. 40 120 mV
Ripple and Noise ➅
5 Hz- 20 MHz BW 150 200 mV pk-pk
Temperature Coeffi cient At all outputs ±0.02 % of Vout./°C
Maximum Capacitive Loading Low ESR 10,000 F
MECHANICAL (Through Hole Models)
Outline Dimensions with heat sink 2.3 x 1.45 x 1.1 Inches
(Please refer to outline drawing) LxWxH 58.4 x 36.83 x 27.94 mm
Outline Dimensions with baseplate 2.3 x 1.45 x .052 Inches
(Please refer to outline drawing) LxWxH 58.4x 36.83x 13.2 mm
Weight with heat sink 3.38 Ounces
96 Grams
Weight with baseplate 2.63 Ounces
74.5 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 98.4-299 µ-inches
Gold overplate 4.7-19.6 µ-inches
ENVIRONMENTAL
Operating Ambient Temperature Range See Derating -40 85 °C
Operating Case Temperature No derating -40 110 °C
Storage Temperature Vin = Zero (no power) -55 125 °C
Thermal Protection/Shutdown Measured in center 135 °C
Electromagnetic Interference External fi lter is required
Conducted, EN55022/CISPR22 B Class
RoHS rating RoHS-6
FUNCTIONAL SPECIFICATIONS, (CONT.)
Notes
➀ Unless otherwise noted, all specifi cations apply at Vin = nominal, nominal output voltage and full
output load. General conditions are near sea level altitude, no base plate installed and natural
convection airfl ow unless otherwise specifi ed. All models are tested and specifi ed with external
parallel 1 F and 10 F output capacitors (see Technical Notes). All capacitors are low-ESR types
wired close to the converter. These capacitors are necessary for our test equipment 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
Cin = 33 µF/100V, Cbus = 220µF/100V and Lbus = 12 µH.
➂ All models are stable and regulate to specifi cation under no load.
➃ The Remote On/Off Control is referred to -Vin.
➄ 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. The load step is ±25% of full load
current.
➅ Output Ripple and Noise is measured with Cout = 1 µF || 10 µF, 20 MHz oscilloscope bandwidth
and full resistive load.