Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (print) 54 V 3 A 162 W No. of outputs: 1 x

EMH-54/3-Q48N-C Series

Isolated, 54Vout, 3A, Ethernet Power

Half-Brick DC/DC Converters

MDC_EMH-54/3-Q48N-C.A05 Page 4 of 15

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Notes

➀ Unless otherwise noted, all speciﬁ cations are 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 an external 1 µF multi-layer

ceramic output capacitor. The external input capacitors are 100uF and 2.2uF ceramic. All capaci-

tors 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 The module will operate when input voltage is within the 18-72V Operating Voltage Range.

Output regulation at full load will be achieved only when Vin ≥ 18V.

➂ Input (back) ripple current is tested and speciﬁ ed over 5 Hz to 20 MHz bandwidth. Input ﬁ ltering

is Cbus = 220 µF, Cin = 33 µF and Lbus = 12 µF.

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

➄ Over-current protection is non-latching with auto reovery (Hiccup)

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.

OUTPUT

Total Output Power See Derating 0.0 161.1 164.32 W

Voltage

Nominal Output Voltage No trim 52.626 53.7 54.774 Vdc

Setting Accuracy At 50% load -2 2 % of Vnom.

Output Voltage Range

User-adjustable ➅

N/A % of Vnom.

Overvoltage Protection Via magnetic feedback 65 67 Vdc

Current

Output Current Range: 24-72 Vin 0.2 3 3 A

Output Current Range: 18-24 Vin 0.2 2.6 2.6 A

Minimum Load 0.2

Current Limit Inception ➄

98% of Vnom., after warmup 3.2 3.9 4.7 A

Short Circuit

Short Circuit Current

Hiccup technique, autorecovery within ±1% of

Vout, non-latching

0.5 1 A

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., 50% load ±0.125 %

Load Regulation Iout=min. to max. Vin=48V. ±0.2 %

Ripple and Noise 5 Hz- 20 MHz BW 250 350 mV pk-pk

Temperature Coefﬁ cient At all outputs 0.02 % of Vnom./°C

Maximum Capacitive Loading Low ESR, resistive load 0 3300 F

MECHANICAL (Through Hole Models)

Outline Dimensions (open frame) 2.4 x 2.3 x 0.43 Inches

61.0 x 58.4 x 10.92 mm

Outline Dimensions (with baseplate) 2.4 X 2.3 X 0.5 Inches

LxWxH (Please refer to outline drawing) 61.0 x 58.4 x 12.7 mm

Weight (with baseplate) 2.3 Ounces

67.13 Grams

Through Hole Pin Diameter See mechanical drawing 0.04 & 0.080 Inches

1.016 & 2.032 mm

Through Hole Pin Material Copper alloy

TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches

Gold overplate 5 µ-inches

Case or Baseplate Material Aluminum

ENVIRONMENTAL

Operating Ambient Temperature Range With derating -40 85 °C

Operating Ambient Temperature Range with

Baseplate

Maximum baseplate temperature: Converter deliv-

ers full rated power at max baseplate temp.

-40 100 °C

Absolute Operating Temperature Range Measured @ Thermistor or in the middle of baseplate -40 105

Storage Temperature Vin = Zero (no power) -40 125 °C

Thermal Protection/Shutdown 125 135 140 °C

Electromagnetic Interference

Conducted, EN55022/CISPR22

External ﬁ lter required B Class

Radiated, EN55022/CISPR22 B Class

RoHS rating RoHS-6

FUNCTIONAL SPECIFICATIONS (CONT.)