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| ISOLATED DC/DC CONVERTERS 48V Input 8V/15A Output, 1/8 Brick 07CR-15T Series * * * * * Isolated High Efficiency High Power Density Fixed Frequency Remote On/Off * * * * * PRELIMINARY Input Under Voltage Lockout Output Overvoltage Shutdown OCP/SCP Low Cost Thermal Shutdown Description The 07CR-15T Series are isolated DC/DC converters that operate from a nominal 48V source. These converters are intended to provide isolation and step down to generate an intermediate bus for the purpose of powering non-isolated Point-of-Load (POL) converters. These units will provide up to 130W of output power from a nominal 48V input. These units are designed to be highly efficient and very low cost and are thus unregulated. The downstream POL converters will provide the precise regulation required by the load. Features include remote on/off, over current protection and undervoltage lockout. These converters are provided in an industry standard eighth-brick package. Part Selection Output Voltage 8V Input Voltage 36V-75V Max. Output Current 15A Max. Output Power 130W Typical Efficiency 95% Model Number Active High 07CR-15T08H Model Number Active Low 07CR-15T08L Note: Add "G" suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Remote On/Off Ambient Temperature Storage Temperature Min -0.3V -0.3V -40C -40C Typ Max 100V 100V 85C 125C Notes Input Specifications Parameter Input Voltage Input Current (full load) Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (RMS) I t Inrush Current Transient Turn On Voltage Threshold Turn Off Voltage Threshold 2 Min 36V - Typ 2mA 0.039A s 34.5V 32.5V 2 Max 75V 3A 45mA 3mA N/A N/A 0.062A s 2 Notes Tested with simulated source impedance of 10uH, 5Hz to 20MHz; use a 47uF/100V electrolytic capacitor with ESR = 1 ohm max. at 200KHz at 25C. Note: All specifications are typical at 25C 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 48V Input 8V/15A Output, 1/8 Brick Output Specifications Parameter Output Voltage Set Point Vin=36V Vin=48V Vin=75V Line Regulation Load Regulation Vin=36V Vin=48V Vin=75V Regulation Over Temperature (-40C to +85C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (RMS) 0A 0.5V 0.5V 0.5V 30mV 20A 1.3A s 15mV 2 Min - Typ 6V 8V 12.5V 6.5V Max 15A 2.1A s 20mV 2 Notes Ripple and Noise (pk-pk) Turn on Time Overshoot at Turn on Output Capacitance Transient Response 25% ~ 50% Max Load 50% ~ 25% Max Load Overshoot Settling Time Vin=48V Overshoot Settling Time 0uF 90mV 10mS 0% - 100mV 3% 3000uF Test conditions: 0-20MHz BW, with a 1uF ceramic capacitor and a 15uF Tantalum capacitor at the output; Vin=48V. - 100mV 120uS 100mV 120uS 150uS 150uS Test conditions: di/dt = 0.1A/uS, Vin=48V, with a 15uF tantalum capacitor at the output. Note: All specifications are typical at 25C unless otherwise stated. General Specifications Parameter Efficiency Switching Frequency Over Temperature Protection MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.30 x 0.9 x 0.41 58.4 x 22.8 x 10.41 23g Min 93% 180KHz Typ 95% 200KHz 115C 2,569,594 hours Max 220KHz Average PCB temperature will not exceed 115C. Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C) Notes Vin=48V, Io=Io,max Note: All specifications are typical at 25C 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 48V Input 8V/15A 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 Optional Active High Min -0.3V 2.5V -0.3V 2.5V Typ Max 0.8V 100V 0.8V 100V Notes 07CR-15T08L. The remote on/off pin open, Unit on. 07CR-15T08H. The remote on/off pin open, Unit on. 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 5.00 10.00 15.00 OUTPUT CURRENT (A) EFFICIENCY 36V 48V 75V 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 48V Input 8V/15A Output, 1/8 Brick Turn-On (Enable) Transient Response: di/dt=0.1A/uS, External Load Capacitance Co=15uF (tantalum capacitor) 50% to 75% and 75% to 50% load Transient at 48Vdc input and Ta=25 deg C External Load Capacitance: 15F 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 48V Input 8V/15A Output, 1/8 Brick Mechanical Drawing Pin Connections Pin 1 2 3 4 5 Function Vin+ Remote On/Off VinVoutVout+ 2005 Bel Fuse Inc. Specifications subject to change without notice. 010505 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST 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 EUROPE 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 |
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