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RBQ-12/33-D48xB-C

Quarter-Brick 400-Watt Isolated DC-DC Converters

Total Output Power

See Derating

0

386

391

W

Voltage

Nominal Output Voltage

Measured @ 48Vin, Full Load.

11.4

11.7

12.5

Vdc

Nominal Output Voltage

Measured @ 48Vin, Half Load.

11.55

11.7

11.85

Vdc

Total Output Range

Over sample load (0-33A), input line (40-75V)

and temperature (see derating curves) , for

regular model and S option

11

12.5

V

Vout Overshoot

12.9

13.1

V

Voltage

Output Voltage

(initial output set point @48V, no load)

For S option only

11.7

12.5

Vdc

Output Voltage

(initial output set point @48V, 50% load)

For S option only

11.685

11.715

Vdc

Output Voltage

(initial output set point @48V, 100% load)

For S option only

11.5

11.7

Vdc

Output Voltage

For S option only: total output range (input line,

load, temperature, samples)

11.0

12.5

Vdc

Overvoltage Protection

Output Voltage clamped (see technical note)

N/A

V

Current

Output Current Range

033

33

A

Minimum Load

No minimum load

Current Limit Inception

98% of Vnom., after warmup

40

46

50

A

Short Circuit

Short Circuit Current

Hiccup technique, autorecovery within 1.25%

of Vout

6A

Short Circuit Duration

(remove short for recovery)

Output shorted to ground, no damage

Continuous

Short circuit protection method

Current limiting

Regulation

➄

Line Regulation

Vin=40 to 75V

+1/-2

%

Load Regulation

Iout=min. to max., Vin=48V

±3

%

Ripple and Noise

5 Hz- 20 MHz BW

100

200

mV pk-pk

Temperature Coefficient

At all outputs

0.003

0.02

% of Vnom./°C

Maximum Capacitive Loading

(10% ceramic, 90% Oscon)

Cap. ESR=<0.02Ω, Full resistive load

470

6000

μF

MECHANICAL (Through Hole Models)

Outline Dimensions

2.3 x 1.45 x 0.5

Inches

58.4 x 36.8 x 12.7

mm

Weight

2.4

Ounces

69

Grams

Through Hole Pin Diameter

Input pins

0.04 ±0.001

Inches

1.016±0.025

mm

Through Hole Pin Diameter

Output pins

0.060 ±0.001

Inches

1.524±0.025

mm

Through Hole Pin Material

Copper alloy

TH Pin Plating Metal and Thickness

Nickel subplate

100-299

μ-inches

Gold overplate

3.9-20

μ-inches

ENVIRONMENTAL

Operating Ambient Temperature Range

With derating, full power, no condensation,

components +125˚C. max.

-40

85

°C

Storage Temperature

Vin = Zero (no power)

-55

125

°C

Thermal Protection/Shutdown

Measured at hotspot

115

125

130

°C

Operating baseplate temperature

-40

110

120

°C

Electromagnetic Interference

Conducted, EN55022/CISPR22

External filter is required

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

RoHS-6

Notes

➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage

and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude,

natural convection airflow. All models are tested and specified with external parallel 1μF, 10μF

and 470 μF output capacitors and 220 μF external input capacitor. 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 specified over 5 Hz to 20 MHz bandwidth. Input filtering

is Cbus = 220 μF, Cin = 220 μF and Lbus = 4.7 μH.

➂ All models are stable and regulate to specification under no load.

➃ The Remote On/Off Control is referred to -Vin.

➄ Regulation specifications describe the output voltage changes as the line voltage or load current

is varied from its nominal or midpoint value to either extreme.

FUNCTIONAL SPECIFICATIONS (CONT.)