ISOLATED DC/DC CONVERTERS 48 VDC Input 8 VDC/15 A Output, 1/8 Brick 0RCR-15T Series RoHS Compliant Rev.B • Isolated • Input Under Voltage Lockout • High Efficiency • Output Overvoltage Shutdown • High Power Density • OCP/SCP • Fixed Frequency • Low Cost • Remote On/Off • Thermal Shutdown Description The 0RCR-15T Series are isolated DC/DC converters that operate from a nominal 48 VDC source. These converters use a half bridge power train to provide isolation and step down. These units will provide up to 130 W of output power from a nominal 48 VDC input. These units are designed to be highly efficient and low cost. Features include remote on/off, over current protection and under voltage lockout. These converters are provided in an industry standard eighth-brick package. Part Selection Output Voltage 8V Input Voltage 36 V-75 V Max. Output Current 15 A Max. Output Power 130 W Typical Efficiency 95% Model Number Active High 0RCR-15T08H Model Number Active Low 0RCR-15T08L 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 100 V Remote On/Off -0.3 V - 100 V Ambient Temperature -40 °C - 85 °C Storage Temperature -40 °C - 125 °C Notes Input Specifications Parameter Min 36 V Typ - Max 75 V Input Current (full load) - - 3A Input Current (no load) - - 45 mA Remote Off Input Current - 2 mA 3 mA Input Reflected Ripple Current (pk-pk) - - N/A Input Reflected Ripple Current (rms) - - Input Voltage 2 Notes with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 47 uF /100 V electrolytic capacitor with ESR = 1 ohm max. at 200 kHz at 25°C. N/A 2 2 I t Inrush Current Transient - 0.039 A s 0.062 A s Turn On Voltage Threshold - 34.5 V - Turn Off Voltage Threshold - 32.5 V - Note: All specifications are typical 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 8 VDC/15 A Output, 1/8 Brick Output Specifications Parameter Output Voltage Set Point Min Typ Max Vin=36 V Vin=48 V Vin=75 V - 6V 8V 12.5 V 6.5 V - Vin=36 V Vin=48 V Vin=75 V - 0.5 V 0.5 V 0.5 V - - 30mV - 0A - 15 A - 20 A Short Circuit Surge Transient - 2 1.3 A s 2.1A s Ripple and Noise (rms) - 15 mV 20 mV Ripple and Noise (pk-pk) - 90 mV 100 mV Turn on Time - 10 mS - Overshoot at Turn on - 0% 3% 0 uF - 3000 uF - 100 mV - - 120 uS 150 uS Overshoot - 100 mV - Settling Time - 120 uS 150 uS Line Regulation Notes Load Regulation Regulation Over Temperature (-40 °C to +85 °C) Output Current Current Limit Threshold Output Capacitance 2 Test conditions: 0-20 MHz BW, with a 1 uF ceramic capacitor and a 15 uF Tantalum capacitor at the output; Vin=48 V. Transient Response 25% ~ 50% Max Load 50% ~ 25% Max Load Overshoot Settling Time Vin=48 V Test conditions: di/dt = 0.1 A/ uS, Vin=48 V, with a 15 uF tantalum capacitor at the output. Note: All specifications are typical at 25 °C unless otherwise stated. General Specifications Parameter Efficiency Switching Frequency Over Temperature Protection Min Typ Max 93% 95% - 180 kHz 200 kHz 220 kHz - 115 °C - MTBF 2,569,594 hours Notes Vin=48 V, Io=Iomax Average PCB temperature will not exceed 115 °C. Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 °C) Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.30 x 0.896 x 0.403 58.42 x 22.76 x 10.24 - 23 g - Note: All specifications are typical 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 8 VDC/15 A Output, 1/8 Brick Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High Min Typ Max -0.3 V - 0.8 V 2.5 V - 100 V -0.3 V - 0.8 V 2.5 V - 100 V Notes 0RCR-15T08L. The remote on/off pin open, Unit on. 0RCR-15T08H. The remote on/off pin open, Unit on. EFFICIENCY Efficiency Data 96.00% 95.00% 94.00% 93.00% 92.00% 91.00% 90.00% 89.00% 88.00% 87.00% 86.00% 0.00 36V 48V 75V 5.00 10.00 15.00 OUTPUT CURRENT (A) Thermal Derating Curve Maximum output power derating curves vs. ambient air temperature for airflow rates of 0 LFM through 400 LFM with air flowing from input to output (nominal input voltage). 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 8 VDC/15 A Output, 1/8 Brick Turn-On (Enable) Transient Response: di/dt=0.1 A/uS, External Load Capacitance Co=15 uF (tantalum capacitor) 50% to 75% and 75% to 50% load Transient at 48 Vdc input and Ta=25 deg C External Load Capacitance: 15 µF tantalum capacitor . 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 8 Vdc/15 A Output, 1/8 Brick Mechanical Ouline Pin Connections Pin Function 1 Vin+ 2 Remote On/Off 3 Vin- 4 Vout- 5 Vout+ RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2008 Bel Fuse Inc. Specifications subject to change without notice. 103108 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