ISOLATED DC/DC CONVERTERS 48 Vdc Input 5 Vdc/1.7 A Output 0RXL-02T050 RoHS Compliant Rev.A • Isolated • Low Cost • High Efficiency • SCP/OCP • Fixed Frequency (220 kHz) • Output Over-Voltage Clamp • High Power Density • Synchronization Description The 0RXL-02T050 is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 10 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and very low cost. Features include Synchronization, over current protection, short circuit protection and output over voltage clamp. This converter is provided in an industry standard package. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number 5 Vdc 38 Vdc - 60 Vdc 1.7 A 10 W 81% 0RXL-02T050 Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. 2. Add “G” suffix at the end of the model numbers listed above to indicate “Tray Packaging”. Absolute Maximum Ratings Parameter Min Typ Max -0.3 V - 80 V I/O Isolation Voltage - - 500 V Synchronization Voltage - - 5.5 V Ambient Temperature -40 °C - 85 °C Storage Temperature -40 °C - 125 °C Continuous Input Voltage Notes Input Specifications Parameter Min Typ Max 38 V 48 V 60 V Input Current (full load) - 0.3 A - Input Current (no load) - 8 mA 15 mA Input Reflected Ripple Current (rms) - 20 mA 40 mA Input Reflected Ripple Current (pk-pk) - 60 mA 100 mA - - 0.2 A s Input Voltage 2 I t Inrush Current Transient Notes With simulated impedance of 10 uH, two 0.47 uF ceramic capacitor at 5 Hz to 20 MHz BW, and a 10 uF/100 V electrolytic capacitor with ESR=1ohm max at 200 kHz. 2 Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. 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 5 Vdc/1.7 A Output Output Specifications Parameter Min Typ Max 4.8 V 5.0 V 5.2 V Load Regulation - - 0.2%VO Io = 0.35 A - 1.7 A Line Regulation - - 0.1%VO Vin = 38 V - 60 V Regulation Over Temperature (-40 °C to +85 °C) - - 0.03%/°C Ripple and Noise (pk-pk) - - 70 mV Ripple and Noise (rms) - 10 mV 20 mV Output Current 0.35 A - 1.7 A Output Current Limit 2.0 A - 3.5 A - - 90 mS Overshoot at Turn On 0% - 5% Output Capacitance 0 uF - 680 uF - 100 mV 150 mV - 500 uS - - 100 mV 150 mV - 500 uS - Output Voltage Set Point Turn on Time Notes Vin=48 V, Io=100% load. Test conditions: 0-20 MHz BW; with a 4.7 uF and a 0.1 uF ceramic capacitor at the output. Hiccup Transient Response 50% ~ 100% Max Load Settling Time 50% ~ 100% Max Load Vo=5.0 V Settling Time Test conditions: di/dt=0.1 A/uS; Vin=48 V; with a 100 uF/10 V Tantalum capacitor at the output. Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. General Specifications Parameter Min Typ Max 77% 81% - Switching Frequency 200 kHz 220 kHz 240 kHz Isolation Capacitance - 1000 pF - Output Over Voltage Clamp - - 7V Efficiency MTBF Notes Vin = 48 V; Full Load Calculated Per Bell Core SR-332 (Vin=48 V; Vo=5 V, Io = 80% Load; TA = 25 °C) 8,159,815 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - 1.9 x 0.98 x 0.44 48.26 x 24.89 x 11.25 10.5 g - Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. 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 5 Vdc/1.7 A Output Control Specifications Parameter Min Typ Max - - 0.4 V Signal High 2.4 V - - Frequency 255 kHz - 300 kHz Duty Cycle 45% - 55% Notes Synchronization Signal Specifications Signal Low Efficiency Data 90% EFFICIENCY 85% 80% 38V 48V 60V 75% 70% 65% 60% 55% 50% 10% Load 25% Load 50% Load 75% Load 100% Load OUTPUT CURRENT (A) Thermal Derating Curve 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 5 Vdc/1.7 A Output Ripple and Noise Waveform Note: Ripple and noise at full load, 48 V input, 5 V/1.7 A output, and Ta=25 deg C, with a 4.7 uF and a 0.1 uF ceramic capacitor at output. Transient Response Waveforms 50%-100% Load Transients 100%-50% Load Transients Note: Transient Response at Vin=48 V, Vo=5 V, di/dt=0.1A/uS, with a 100 uF/10 V tantalum capacitor, 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 5 Vdc/1.7 A Output Mechanical Outline Pin Connections Pin Function 1 Vin (+) 2 Vin (-) 3 SYNC 4 Vo (+) 5 COM 6 N/A RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2007 Bel Fuse Inc. Specifications subject to change without notice. 030607 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