ISOLATED DC/DC CONVERTERS 48 VDC Input / 140 W Output , 1/8 Brick 0RCR “Cimarron” Series RoHS Compliant • Industry standard eighth-brick package • Up to 140 W at 95% efficiency • 1500 V Isolation • Remote On/Off • Low Cost Description The 0RCR “Cimarron” 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 140 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 48 V Max. Output Current 18 A Max. Output Power 140 W Typical Efficiency 95% Model Number Active Low 0RCR-18S08L Model Number Active High 0RCR-18S08H 12 V 48 V 12 A 140 W 95% 0RCR-12S12L 0RCR-12S12H 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) Remote On/Off Min V Typ - Max V 0V - 60 V Operating Temperature -40 °C - 85 °C Non-Operating Temperature -55 °C - 125 °C Notes Input Specifications Parameter Min 36 V Typ - Max 60 V Input Current (full load) - - 3A Input Current (no load) - - 45 mA Input Reflected Ripple Current (pk-pk) - - 30 mA Input Reflected Ripple Current (rms) - - 10 mA Input Voltage Notes Reflected ripple current through a 10uH source inductor at nominal input voltage and rated load current. 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 / 140 W Output , 1/8 Brick Output Specifications Parameter Min Typ Max Notes Unregulated output will track input voltage with a 6:1 or 4:1 ratio. Output Voltage Set Point 0RCR-18S080 0RCR-12S120 - Vin / 6 Vin / 4 - 0RCR-18S080 0RCR-12S120 - - 18 A 12 A 0RCR-18S080 0RCR-12S120 - 0.5 V 0.7 V - 0RCR-18S080 0RCR-12S120 - - 20 mV 40 mV 0RCR-18S080 0RCR-12S120 - - 110 mV 150 mV Output Current Load Regulation Ripple and Noise (rms) Ripple and Noise (pk-pk) Test conditions: 0 to 20MHz Bandwidth Use 1.0uF ceramic cap and 15uF/100mOhm tantalum on output. Note: All specifications are typical at 25 °C unless otherwise stated. General Specifications Parameter Efficiency Min Typ Max - 95% - - 200 kHz 150 kHz - - °C - Notes Vin=48 V, Io=Iomax Switching Frequency 6:1 4:1 Over Temperature Protection MTBF 2,569,594 hours 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 0.9 x 0.39 58.4 x 22.8 x 9.8 - 23 g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Remote On/Off Min Typ Max Notes Signal Low (Unit On) 0V - 0.8 V 2.5 V - 60 V The remote on/off pin open, Unit on. 0V - 0.8 V 2.5 V - 60 V Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High The remote on/off pin open, Unit on. 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 / 140 W 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