Datasheet
PAQ Series
Up to 150W 29.8V Nom Output Quarter-Brick Isolated
DC-DC Converter with 2:1 Wide Input Range
MDC_PAQ Series.A02 Page 4 of 16
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OUTPUT
Conditions ➀ /Comments
Minimum Typical/Nominal Maximum Units
Total Output Power 0 149 150.49 W
Voltage
Nominal Output Voltage No trim 29.502 29.8 30.098 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 38 40 Vdc
Current
Output Current Range 055A
Current Limit Inception 98% of Vnom., after warmup 5.5 6.8 8.2 A
Short Circuit
Short Circuit Current
Hiccup technique, autorecovery within 1.25%
of Vout
1.5 2 A
Short Circuit Duration
(remove short for recovery)
Output shorted to ground, no damage;
continuous
Short circuit protection method Current limiting
Regulation ➄
Total Accuracy: Over line, load (0-5A), and temp. 28.906 30.69 Vdc
Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.1 % of Vout
Load Regulation Iout = min. to max., Vin = 48V ±0.1 % of Vout
Ripple and Noise 5 Hz- 20 MHz BW 40 90 mV pk-pk
Remote Sense 10 %
Temperature Coeffi cient At all outputs ±0.02 % of Vout./°C
Maximum Capacitive Loading Low ESR, resistive load only 1 2200 F
MECHANICAL
Outline Dimensions (open frame) 2.3 x 1.45 x 0.46 Inches
(Please refer to outline drawing) 58.4 x 36.8 x 11.7 mm
Outline Dimensions (with baseplate) 2.3 x 1.45 x 0.5 Inches
58.4 x 36.8 x 12.7 mm
Weight Open frame 1.56 Ounces
43.8 Grams
With baseblate 2.13 Ounces
60.5 Grams
Through Hole Pin Diameter pins (1-4,6-8) & (5,9) 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 Baseplate Temperature No derating, -40 100 °C
Storage Temperature Vin = Zero (no power) -55 125 °C
Thermal Protection/Shutdown 115 125 130 °C
Electromagnetic Interference External fi lter is required
Conducted, EN55022/CISPR22 Class B
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 con-
vection airfl ow unless otherwise specifi ed. All models are tested and specifi ed with external paral-
lel 1 F and 10 F output capacitors and a 22µf external input capacitor (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.