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| NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 0.75 V-6.0 V/6 A Output VRBA-06A1AX Series * * * * Non-Isolated High Efficiency High Power Density Fixed Frequency RoHS Compliant * * * * Under-Voltage Lockout (UVLO) OCP/SCP Remote On/Off Wide Trim Range Description The Bel VRBA-06A1AX modules are a series of non-isolated dc/dc converters that can deliver up to 6 A of output current with full load efficiency of 92% at 6.0 V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 V to 6.0 V over input voltage (10 V-14 V). Their openframe construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, programmable output voltage and over current protection. Part Selection Output Voltage 0.75 V - 6.0 V Input Voltage 10 V - 14 V Max. Output Current 6A Max. Output Power 36W Typical Efficiency at 6.0V 92% Model Number Active Low VRBA-06A1AL Model Number Active High VRBA-06A1A0 Note: Add "G" suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 C -55 C Typ Max 15 V 15 V 85 C 125 C Notes Note: All specifications are typical at 25 C unless otherwise stated. Input Specifications Parameter Input Voltage Input Current (full load) Vo=6.0 V Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=0.75 V Input Current (no load) Vo=6.0 V Vo=0.75 V Remote Off Input Current 3 mA 100 mA 20 mA 5 mA Min 10 V Typ 12 V 3.5 A 2.8 A 1.9 A 1.5 A 1.1 A 0.55 A Max 14 V Notes 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 10 V-14 V Input 0.75 V-6.0 V/6 A Output Input Specifications (continued) Parameter 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 - Typ 120 mA 40 mA 0.002 A s 9.5 V 9.0 V 2 Max 0.02 A s 9.8 V 9.5 V 2 Notes Tested with two 100 uF/25 V tan input capacitors & simulated source impedance of 1uH, 5 Hz to 20 MHz. Output Specifications Parameter Output Voltage Set Point Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (-40 C to +85 C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (pk-pk) Vo=6.0 V Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=0.75 V Ripple and Noise (rms) Vo=6.0 V Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=0.75 V Turn on Time Overshoot at Turn on Output Capacitance ESR 1mohm ESR 10mohm Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO = 0.75 V 6.0 V 200 mV 50 uS 200 mV 50 uS di/dt=2.5 A/uS; Vin=12 V; and with 10 uF/10 V tantalum capacitor and 1uF/10 V ceramic capacitor at the output 0 uF 0 uF 30 mV 25 mV 20 mV 15 mV 12 mV 7 mV 15 mS 0% 25 mS 3% 1000 uF 3300 uF 85 mV 75 mV 60 mV 50 mV 40 mV 20 mV Min -2%Vo,set -2.5%Vo,set 0A 7A Typ 0.4%Vo,set 0.3%Vo,set 0.5%Vo,set 0.25 A2s Max 2%Vo,set 3.5%Vo,set 6A 15 A Notes Vin=12 V, full load Over all operating input voltages, resistive loads and temperature conditions Io=Io, min to Io, max Vin=Vin, min to Vin, max Tref=Ta, min to Ta, max Tested with 0-20 MHz, with 10 uF/10 V tantalum capacitor and 1uF/10 V ceramic capacitor at the output Note: All specifications are typical at nominal input (Vin=12 V), 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 NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 0.75 V-6.0 V/6 A Output General Specifications Parameter Efficiency Vo=6.0 V Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=0.75 V Switching Frequency Over Temperature Shutdown MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 1.0 x 0.5 x 0.243 25.4 x 12.7 x 6.16 3g 280 kHz 92% 90% 88% 85% 83% 71% 300 kHz 135 C 3,266,517 hours 320 kHz Measured at Vin=12 V, full load Min Typ Max Notes Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 C) Note: All specifications are typical at 25 C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) Output Voltage Trim Range (Wide Trim) Min -0.3 V 2.5 V -0.3 V 2.5 V 0.7525 V Typ Max 0.4 V 14 V 0.4 V 14 V 6.3 V Notes VRBA-06A1A0; Remote On/Off pin open, Unit on. VRBA-06A1AL; Remote On/Off pin open, Unit on. Output Trim Equations Equation for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout Rtrim = 10.507 -1 Vadj - 0.7525 Module Trim GND Rtrim Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The Trim Up voltage should be connected between the Trim pin and Ground. Vout Vtrim = 0.7 - 0.0667 x (Vadj - 0.7525) Module Trim Vtrim GND 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 10 V-14 V Input 0.75 V-6.0 V/6 A Output Efficiency Data MODULE 5.0V MODULE 3.3V 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT 10V 12.0 14.0 EFFICIENCY EFFICIENCY 90.0% 80.0% 70.0% 60.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT 10.0 12.0 14.0 MODULE 1.8V 100.0% EFFICIENCY 90.0% 80.0% 70.0% 60.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT MODULE 0.75V 90.0% 80.0% 70.0% 60.0% 50.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT 10.0 12.0 14.0 10.0 12.0 14.0 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com EFFICIENCY NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 0.75 V-6.0 V/6 A Output Thermal Derating Curves Vin=12 V, Vo=0.75 V Vin=12 V, Vo=2.5 V Vin=12 V, Vo=3.3 V Vin=12 V, Vo=6.0 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 10 V-14 V Input 0.75 V-6.0 V/6 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 Function Vout Trim Ground No Pin Vin Remote 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. (c)2006 Bel Fuse Inc. Specifications subject to change without notice. 011906 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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