EMH-54/3-Q48N-C Series www.murata-ps.com Isolated, 54Vout, 3A, Ethernet Power Half-Brick DC/DC Converters ORDERING GUIDE SUMMARY Model Vout Range Iout Range Vin Range Ripple/Noise Efficiency EMH-54/3-Q48 54V 0.2-3A 18-72V 250mVp-p 91.5% INPUT CHARACTERISTICS Parameter Typ. 25C, full load Notes Voltage Range 18-72 Volts 48V nominal Input Current, full power 3.67 Amps VIN = 48V Turn On/start-up threshold 17.5 Volts Typical units Undervoltage Shutdown 17 Volts No load Input Current 40mA VIN = 48V OUTPUT CHARACTERISTICS Parameter Typ. 25C, full load Notes Voltage 54 Volts 2% Current 0.2 to 3 Amps 0.2A min load required Power Output 162 Watts Ripple & Noise 250mVp-p 20MHz bandwidth Line and Load Regulation 0.125%/0.2% Overcurrent Protection 4 Amps With hiccup auto-restart Overtemperature Protection +135C FEATURES Efficiency (minimum) 89.5% Industry-Standard Half-Brick footprint Efficiency (typical) 91.5% 162W output power 24-72Vin GENERAL SPECIFICATIONS Up to 91.5% Efficiency at 54V output (typical) Parameter Typ. 25C, full load Notes Dynamic Load Response 300sec 50-75-50% step to 1 of final value On/Off Control (Negative logic) Operating Temperature Range 40 to +85C With baseplate, see derating curve Monotonic startup into pre-bias output conditions Absolute Operating Temperature Over-current, Output & Over-temperature protec- 40 to +105C Measured at Thermistor, see derating Range tion UL 60950-1, 2nd edition Low output ripple and noise Safety Features CSA-C22.2 No.60950-1 and Strong thermal derating characteristics IEC/EN60950-1 Operational Temperature Range 40C to +85C PHYSICAL SPECIFICATIONS with baseplate Parameter Inches Millimeters 2250V I/O isolation Open frame (no baseplate) 2.4 x 2.3 x 0.43 61 x 58.4 x 10.92 Output short-circuit protection (hiccup technique) With baseplate 2.4 X 2.3 X 0.5 61.0 x 58.4 x 12.7 PRODUCT OVERVIEW The EMH-54/3-Q48N-C module offers 54V output at 3 The modules offer wide range input voltage of demanding telecom, POE (power over Ethernet), data- amps in a Half Brick footprint DC/DC power converter. 18-72V. The EMH topology offers high efficiency up com, and networking applications. EMHs feature input These compact modules measure 2.4 x 2.3 x 0.5 (61 to 91.5%, good regulation, low ripple/noise, and a filters, input under voltage, output current limiting, x 58.4 x 12.7 mm) with baseplate and offer the industry- fast dynamic load response. The module supplies up short-circuit protection, and thermal shutdown. standard Half-Brick footprint. The product is designed to to 162 Watts of power and isolation rated at 2250V fully comply with RoHS-6 directive. for basic insulation. EMH models are designed for For full details go to www.murata-ps.com/rohs www.murata-ps.com/support M DC EMH-54/3-Q48N-C.A10 Page 1 of 15EMH-54/3-Q48N-C Series Isolated, 54Vout, 3A, Ethernet Power Half-Brick DC/DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Dimensions Efficiency with IOUT IIN, no IIN, full Power R/N (mV pk-pk) Regulation (Max.) VOUT VIN Nom. Range baseplate (Amps, load load (Volts) (Volts) (Volts) Root Model (Inches) (Watts) Typ. Max. Line Load Min. Typ. Max.) (mA) (Amps) EMH-54/3-Q48 54 3 162 250 350 0.125% 0.2% 48 18-72 40 3.67 89.5% 91.5% 2.4x2.3x0.5 Please refer to the full part number structure for additional ordering part numbers and options. Full power continuous output requires baseplate installation. Please refer to the derating curves. All specifications are typical at nominal line voltage and full load, +25C. unless otherwise noted. Units are tested with a 1uF ceramic external output capacitor and a 100uf and 2.2uF external input capacitor. PART NUMBER STRUCTURE EMH - 54 / 3 Q48 N B Lx C - - Ethernet-Module RoHS Hazardous Materials compliance Half Brick Series C = RoHS-6 (no lead), standard, does not claim EU exemption 7b lead in solder Nominal Output Voltage Pin length option Maximum Output Current Blank = standard pin length 0.180 in. (4.6 mm) in Amps L1 = 0.110 in. (2.79 mm)* L2 = 0.145 in. (3.68 mm)* Baseplate Input Voltage Range: Blank = No baseplate, standard Q48 = 18-72 Volts (48V nominal) B = Baseplate installed Note: Some model combinations may On/Off Control Logic not be available. Contact Murata Power N = Negative logic, standard Solutions for availability. www.murata-ps.com/support M DC EMH-54/3-Q48N-C.A10 Page 2 of 15