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| NON-ISOLATED DC/DC CONVERTERS 8.3V-14V Input 0.75V-5.0V/3A Output V7BA-03A1AX Series * * * * * Non-Isolated Fixed Frequency High Efficiency High Power Density Active Low/High (option) * * * * * Under-voltage Lockout (UVLO) OCP/SCP Remote On/Off Wide Trim Range Wide Input Range Description The Bel V7BA-03A1AX modules are a series of non-isolated DC/DC converters that deliver up to 3A of output current with full load efficiency of 93% at 5.0V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75V to 5.5V over a wide range of input voltage. Their open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, programmable output voltage, over-temperature protection, over current protection, short circuit protection, and undervoltage lockout. Part Selection Output Voltage 0.75V - 5.0V Input Voltage 8.3V - 14V Max. Output Current 3A Max. Output Power 15W Typical Efficiency at 5.0V 93% Model Number Active High V7BA-03A1A0 Model Number Active Low V7BA-03A1AL 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 -0.3V -0.3V -40C -55C Typ Max 15V 15V 85C 125C Notes Note: All specifications are typical at 25C unless otherwise stated. Input Specifications Parameter Input Voltage Input Current (full load) Vo=5.0V Vo=3.3V Vo=0.75V Input Current (no load) Vo=5.0V Vo=3.3V Vo=0.75V 55mA 40mA 15mA 65mA 50mA 20mA Min 8.3V Typ 12V 1.35A 0.90A 0.24A Max 14V 2.00A 1.37A 0.37A 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 8.3V-14V Input 0.75V-5.0V/3A Output Input Specifications (continued) Parameter Remote Off Input Current Input Reflected Ripple Current (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V Input Reflected Ripple Current (RMS) Vo=5.0V Vo=3.3V Vo=0.75V 2 I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Min 7.6V 7.0V Typ 3mA 70mA 60mA 25mA 20mA 15mA 6mA 2 0.01A s 7.9V 7.8V Max 6mA 100mA 90mA 40mA 60mA 30mA 15mA 2 0.02A s 8.2V 8.1V Notes Tested with two 100uF/25V tantalum input capacitors & simulated source impedance of 1uH, 5Hz to 20MHz. Output Specifications Parameter Output Voltage Set Point Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (-40C to +85C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V Ripple and Noise (RMS) Vo=5.0V Vo=3.3V Vo=0.75V Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time All 200mV 50uS 200mV 50uS 300mV 80uS 300mV 80uS di/dt=2.5A/uS; Vin=12V; and with 10uF/10V tantalum capacitor and 1uF/10V ceramic capacitor at the output 0uF 25mV 15mV 5mV 5mS 0% 45mV 25mV 10mV 8mS 3% 1200uF 80mV 55mV 25mV 120mV 80mV 45mV Tested with 0-20MHz, with 10uF/10V tantalum capacitor and 1uF/10V ceramic capacitor at the output Min -2%Vo,set -2.5%Vo,set 0.5%Vo,set 0.4%Vo,set 0A 4.2A Typ 0.4%Vo,set 0.3%Vo,set 0.5%Vo,set 0.1A s 2 Max 2%Vo,set 3.5%Vo,set 0.5%Vo,set 0.4%Vo,set 0.8%Vo,set 3A 11A - Notes Vin=12V, lo=lomax, full load Over all operating input voltages, resistive loads and temperature conditions Io=Io, min to Io, max Vin=Vin, min to Vin, max Note: All specifications are typical at nominal input (Vin=12V), full load 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 NON-ISOLATED DC/DC CONVERTERS 8.3V-14V Input 0.75V-5.0V/3A Output General Specifications Parameter Efficiency Vo=5.0V Vo=3.3V Vo=0.75V Switching Frequency Over Temperature Shutdown MTBF Dimensions (Vertical Mount) Inches (L x W x H) Millimeters (L x W x H) Weight 89% 86% 73% 93% 90% 77% 300KHz 135C 8,791,825 hours 0.9 x 0.4 x 0.243 22.9 x 10.2 x 6.16 2.5g Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C) Measured at Vin=12V, full load (Current Source) Min Typ Max Notes - - Note: All specifications are typical at 25C 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 -0.3V 2.5V -0.3V 2.5V 0.7525V Typ Max 0.4V 14V 0.4V 14V 5.0V Notes V7BA-03A1A0; Remote On/Off pin open, Unit on. V7BA-03A1AL; 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 8.3V-14V Input 0.75V-5.0V/3A Output Efficiency Data MODULE 5.0V 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.30A 0.75A 1.50A 2.25A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V 3.00A MODULE 3.3V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.30A EFFICIENCY 8.3V 12.0V 14.0V 0.75A 1.50A 2.25A OUTPUT CURRENT 3.00A MODULE 0.75V 85.0% EFFICIENCY 75.0% 65.0% 55.0% 45.0% 0.30A 1.75A 1.50A 2.25A OUTPUT CURRENT 8.3V 12.0V 14.0V 3.00A 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 8.3V-14V Input 0.75V-5.0V/3A Output Thermal Derating Curves Vin=12V, Vo=5.0V Vin=12V, Vo=3.3V Vin=12V, Vo=0.75V 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 8.3V-14V Input 0.75V-5.0V/3A Output Pin Connections Pin 1 2 3 4 5 Function Vout Trim Ground Vin Remote On/Off 2005 Bel Fuse Inc. Specifications subject to change without notice. 020405 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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