NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input VRBC-70R1A0 5 Vdc/10 A - 15 Vdc/4.5 A Outputs RoHS Compliant Rev.D • Non-Isolated • Excellent Thermal Performance • High Efficiency • OCP/SCP • Fixed Frequency • Low Output Ripple • Low Cost • Output Voltage Trim • Wide Input Voltage Range • Remote On/Off • Over Temperature Protection Description The VRBC-70R1A0 is a non-isolated dc/dc converter that operates over a wide range of input voltage (VIN = 20 Vdc-30 Vdc). This unit can provide a precisely regulated output voltage from 5.0 Vdc to 15.0 Vdc and can deliver up to 10 A of output current. This unit is designed to be highly efficient and low cost. The converter is provided in an industry standard package. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active High 5 Vdc - 15 Vdc 20 Vdc - 30 Vdc 10 A - 4.5 A 70 W 96.5% VRBC-70R1A0 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 Min Typ Max Input Voltage (continuous) -0.3 V - 36 V Remote On/Off -0.3 V - 36 V Ambient Temperature -40 °C - 85 °C Storage Temperature -55 °C - 125 °C Notes 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 NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Input Specifications Parameter Min Typ Max Operating Input Voltage 20 V 24 V 30 V Input Current (full load) - - 4.5 A Input Reflected Ripple Current (pk-pk) - 35 mA - Input Reflected Ripple Current (rms) - 10 mA - I t Inrush Current Transient - - 1A s Turn-on Voltage Threshold - 18.5 V - Turn-off Voltage Threshold - 17.5 V - 2 Notes With simulated source impedance of 1uH, 5Hz to 20MHz. Use a 470uF/50V electrolytic capacitor with ESR=0.1 ohm max, at 100KHz 2 Note: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Output Voltage Set Point Accuracy -2%Vo,set - +2%Vo,set Load Regulation - - 0.5%Vo Line Regulation - - 0.4%Vo Regulation Over Temperature (-40 °C to +85 °C) - - 0.02%Vo/C 0A 0A 0A - 10 A 6A 4.5 A - 17 A - Vo=5 V Vo=12 V Vo=15 V - 70 mV 100 mV 120 mV 120 mV 160 mV 180 mV Vo=5 V Vo=12 V Vo=15 V - 25 mV 35 mV 40 mV 35 mV 55 mV 65 mV Turn on Time - - 18 mS Rise Time - 5 mS 9 mS Overshoot at Turn on and off - - 2% 0 uF - 1500 uF Notes VIN=VIN,nor, IO=IO,max load Output Current Vo=5 V Vo=12 V Vo=15 V Current Limit Threshold Ripple and Noise (pk-pk) Ripple and Noise (rms) 0-20MHz BW, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output. Output Capacitance ESR≥5 mΩ Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Output Specifications (continued) Parameter Min Typ Max Notes Transient Response 50% ~ 100% Max Load - 200 mV 300 mV - 50 uS 100 uS - 200 mV 300 mV Settling Time - 50 uS 100 uS 50% ~ 100% Max Load - 200 mV 300 mV - 80 uS 150 uS - 200 mV 300 mV Settling Time - 80 uS 150 uS 50% ~ 100% Max Load - 200 mV 300 mV - 80 uS 150 uS - 200 mV 300 mV - 80 uS 150 uS Settling Time Vo=5 V 100% ~ 50% Max Load Settling Time Vo=12 V 100% ~ 50% Max Load Settling Time Vo=15 V 100% ~ 50% Max Load Settling Time di/dt=1 A/us, Vin=24 Vdc, Ta=25°C, Co=0 uF Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. General Specifications Parameter Min Typ Max - 92.5% 96.5% 96.5% - - 300 kHz - 5V - 15 V - - 0.5 V Notes Efficiency Vo=5 V Vo=12 V Vo=15 V Switching Frequency Output Voltage Trim Range Remote Voltage Compensation MTBF Measured at Vin=24 V, full load Trim pin is open, Vo = 5 V Calculated Per Bell Core SR-332 (IO = 80% Load; Ta = 25°C) TBD Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.0 x 0.5 x 0.36 50.8 x 12.7 x 9.13 - 7.5 g - Notes: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Min Typ Max Signal Low (Unit Off) -0.3 V - 1.2 V Signal High (Unit On) Vin-2.5 - Vin Current Source/Sink 0 mA - 3.3 mA Notes Remote On/Off (Active High) 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 NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Output Trim Equations Equation for calculating the trim resistor (in Ω) given the desired output voltage (Vo) is shown below. The Trim resistor should be connected between the Trim pin and GND. Vout ⎡ 10500 ⎤ Rtrim = ⎢ − 1000⎥ ⎣Vo − 5.021 ⎦ Sense Module trim Rtrim GND Thermal Derating Curves Vo=5 V Vo=12 V Vo=15 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Efficiency Curves Efficiency Curve 95.0% Efficiency 90.0% 85.0% 80.0% 20 75.0% 24 30 70.0% 65.0% 60.0% 1A 2.5A 5A 7.5A 10A Output Current (A) Vo=5.0 V 100.0% Efficiency Curve Efficiency 95.0% 90.0% 85.0% 20 80.0% 24 75.0% 30 70.0% 65.0% 60.0% 0.6A 1.5A 3A 4.5A 6A Output Current(A) Vo=12 V Efficiency Curve 100.0% Efficiency 95.0% 90.0% 85.0% 20 80.0% 24 75.0% 30 70.0% 65.0% 60.0% 0.45A 1.125A 2.25A 3.375A 4.5A Output Current(A) Vo=15 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Ripple and Noise Waveforms 5.0 Vdc/10 A output 12 Vdc/6 A output 15 Vdc/4.5 A output Note: Ripple and noise at full load, 24 Vdc input, and 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 NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Transient Response Waveforms Vout= 5.0 V 50%-100% Load Transients Vout=5.0 V 100%-50% Load Transients Vout= 12 V 50%-100% Load Transients Vout=12 V 100%-50% Load Transients Vout= 15 V 50%-100% Load Transients Vout=15 V 100%-50% Load Transients Note: Transients at Vin=24V and Ta=25deg C. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 20 Vdc - 30 Vdc Input 5 Vdc/10 A - 15 Vdc/4.5 A Outputs Mechanical Outline Pin Connections Pin Function 1 Vo 2 Vo 3 Vo, sense 4 Vo 5 GND 6 GND 7 Vin 8 Vin 9 N/A 10 Trim 11 On/Off 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. 011409 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