ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc/18 A Output 0RX3-D2T12x RoHS Compliant Rev.C Isolated Output Over-voltage Protection High Efficiency OCP/SCP High Power Density Over Temperature Protection Low Cost Remote On/Off Fixed Frequency (300 kHz) Basic Insulation Input Under-voltage Lockout Baseplate Input Over-voltage Lockout Description The 0RX3-D2T12x is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 216 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection and over-voltage protection. The converter is provided in an industry standard quarter brick package. Part Selection Output Voltage 12 V Input Voltage 36 V - 75 V Max. Output Current 18 A Max. Output Power 216 W Typical Efficiency 95% Model Number Active High 0RX3-D2T120 Model Number Active Low 0RX3-D2T12L Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. 2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. Absolute Maximum Ratings Parameter Input Voltage (continuous) Min -0.3 V Typ - Max 80 V Input voltage Transient Protection Remote On/Off - - 100 V -0.3 V - 18 V I/O Isolation Voltage - - 1500 V Ambient Temperature -40 C - 85 C Storage Temperature -55 C - 125 C Notes Operating for 100mS Input Specifications Parameter Input Voltage Input Current (full load) Input Current (no load) Remote Off Input Current Min 36 V - Typ 48 V 80 mA 10 mA Max 75 V 7.0 A 150 mA 20 mA Input Reflected Ripple Current (pk-pk) - 20 mA 30 mA Input Reflected Ripple Current (rms) - 5 mA 10 mA I t Inrush Current Transient - - 1A s Turn-on Voltage Threshold Turn-off Voltage Threshold 32.5 V 34.5 V 33.5 V 35.5 V - 2 Notes Tested with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 100 uF /100 V electrolytic capacitor with ESR = 1 ohm max. at 200 kHz at 25 C. 2 Notes: 1. Should place at least 100uF/100V electrolytic capacitor directly adjacent to the input pin of the module. 2. All specifications are typical at nominal input, full load at 25 C unless noted. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc/18 A Output Output Specifications Parameter Output Voltage Set Point Min - Typ 12 V Max - Notes Vin=48 V, Io=50% full load Line Regulation - ±50 mV ±100 mV Load Regulation Regulation Over Temperature (-40 C to +85 C) Output Current - ±300 mV ±500 mV - ±150 mV ±250 mV 0A - 18 A Current Limit Threshold - 20 A - Short Circuit Surge Transient - - 5A s Ripple and Noise (rms) - 25 mV 50 mV Ripple and Noise (pk-pk) - 70 mV 120 mV - 30 mS - Ton(Enable form Vin) - 10 mS - Ton(Enable form ON/OFF) - 0% 3% 0 uF - 10000 uF Turn on Time Overshoot at Turn on Output Capacitance 2 0-20 MHz BW, with a 1 uF ceramic capacitor and a 10 uF Tantalum capacitor at the output. Transient Response Overshoot Settling Time Overshoot Settling Time 50% ~ 75% Max Load 75% ~ 50% Max Load - 300 mV 500 uS 300 mV 500 uS - Test conditions: di/dt = 0.1 A/uS, Vin=48 V, with a 1 uF ceramic capacitor and a 10 uF Tantalum capacitor at the output. Note: All specifications are typical at nominal input, full load at 25 C unless noted. General Specifications Parameter Min - Typ 95% Max - Switching Frequency - 300 kHz - Isolation capacitance - 2200 pF - Input to Output Isolation Voltage - - 1500 V Efficiency Isolation Resistance 10M ohm - - Over Temperature Protection - 125 C 130 C Over Voltage Protection - 14.5 V - Notes Vin=48 V, full load , Ta=25 C Temperature Limits for Power Derating Curves Semiconductor Junction Temperature - - 120 C Package rated to 150°C Board Temperature - - 125 C UL rated max operating temp 130°C Transformer Temperature - - 125 C MTBF 1,791,138 hours Calculated Per Bell Core SR-332 (Vin=48 V, Vo=12 V, IO = 14.4 A, 300LFM forced air flow; Ta = 25 C) Dimensions Inches millimeters Weight 2.28 x 1.45 x 0.50 57.91 x 36.83 x 12.70 70 g - Note: All specifications are typical at nominal input, full load at 25 C unless noted. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc/18 A Output Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low Active High Min Typ Max Notes -0.3 V 2.4 V -0.3 V 2.4 V 0 mA - 0.8 V 18 V 0.8 V 18 V 0.75 mA When Remote On/Off pin is open, for active low option, unit is off; for active high option, unit is on. Efficiency Data 100.00% EFFICIENCY 95.00% 36 V 48 V 75V 90.00% 85.00% 80.00% 75.00% 1.80 4.50 9.00 13.50 18.00 OUTPUT CURRENT(A) Thermal Derating Curve Output current derating versus ambient temperature and airflow @Vin=48V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc/18 A Output Ripple and Noise Waveform 48 Vdc input, 12 Vdc/18 A output Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum cap at output, Ta=25°C. Transient Response Waveforms Vout=12 Vdc, 50% to 75% Load Transients Vout=12 Vdc, 75% to 50% Load Transients Note: Transient response at di/dt=0.1 A/us, Vin=48 Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 10µF tantalum cap at output. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc/18 A Output Start-Up Time Start up time with remote on/off Start up time with Vin Note: Test at 48Vdc input, 12Vdc/18A output, Ta=25 deg C, and with a 1uF ceramic cap and a 10000 uF AL cap at output. Over Current Protection In hiccup mode @48Vdc input Ta=25 deg C Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc/18 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 Function Vin (+) N/A ON/OFF N/A Vin (-) Vout (-) Vout (+) Pin Size 0.04" 0.04" 0.04" 0.06" 0.06" RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. 2009 Bel Fuse Inc. Specifications subject to change without notice. 052709 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com Bel Fuse Ltd. 8F/ 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com