V7BA-03A1AX BEL | Alldatasheet
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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
- Non-Isolated • Under-voltage Lockout (UVLO)
- Fixed Frequency • OCP/SCP
- High Efficiency • Remote On/Off
- High Power Density • Wide Trim Range
- Active Low/High (option) • 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 vo ltage, over-temperature protection, over current protection, short circuit protection, and undervoltage lockout. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency at 5.0V Model Number Active High Model Number Active Low 0.75V – 5.0V 8.3V - 14V 3A 15W 93% V7BA-03A1A0 V7BA-03A1AL Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Min Typ Max Notes Input Voltage (continuous) -0.3V - 15V Output Enable Terminal Voltage -0.3V - 15V Ambient Temperature -40°C - 85°C Storage Temperature -55°C - 125°C Note: All specifications are typical at 25°C unless otherwise stated. Input Specifications Parameter Min Typ Max Notes Input Voltage 8.3V 12V 14V Input Current (full load) Vo=5.0V Vo=3.3V Vo=0.75V 1.35A 0.90A 0.24A 2.00A 1.37A 0.37A Input Current (no load) Vo=5.0V Vo=3.3V Vo=0.75V 55mA 40mA 15mA 65mA 50mA 20mA V7BA-03A1Ax Series
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 Min Typ Max Notes Remote Off Input Current - 3mA 6mA Input Reflected Ripple Current (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V 70mA 60mA 25mA 100mA 90mA 40mA Input Reflected Ripple Current (RMS) Vo=5.0V Vo=3.3V Vo=0.75V 20mA 15mA 6mA 60mA 30mA 15mA Tested with two 100uF/25V tantalum input capacitors & simulated source impedance of 1uH, 5Hz to 20MHz. I2t Inrush Current Transient - 0.01A 2s 0.02A 2s Turn-on Voltage Threshold 7.6V 7.9V 8.2V Turn-off Voltage Threshold 7.0V 7.8V 8.1V Output Specifications Parameter Min Typ Max Notes Output Voltage Set Point -2%Vo,set - 2%Vo,set Vin=12V, lo=lomax, full load Output Voltage Set Point -2.5%Vo,set - 3.5%Vo,set Over all operating input voltages, resistive loads and temperature conditions Load Regulation 0.5%Vo,set 0.4%Vo,set 0.5%Vo,set Io=Io, min to Io, max Line Regulation 0.4%Vo,set 0.3%Vo,set 0.4%Vo,set Vin=Vin, min to Vin, max Regulation Over Temperature (-40°C to +85°C) - 0.5%Vo,set 0.8%Vo,set Output Current 0A - 3A Current Limit Threshold 4.2A - 11A Short Circuit Surge Transient - 0.1A 2s - Ripple and Noise (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V 80mV 55mV 25mV 120mV 80mV 45mV Ripple and Noise (RMS) Vo=5.0V Vo=3.3V Vo=0.75V 25mV 15mV 5mV 45mV 25mV 10mV Tested with 0-20MHz, with 10uF/10V tantalum capacitor and 1uF/10V ceramic capacitor at the output Turn on Time - 5mS 8mS Overshoot at Turn on - 0% 3% Output Capacitance 0uF - 1200uF Transient Response 50% ~ 100% Max Load - 200mV 300mV Settling Time - 50uS 80uS 100% ~ 50% Max Load - 200mV 300mV Settling Time All - 50uS 80uS di/dt=2.5A/uS; Vin=12V; and with 10uF/10V tantalum capacitor and 1uF/10V ceramic capacitor at the output Note: All specifications are typical at nominal input (Vin=12V), 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 8.3V-14V Input 0.75V-5.0V/3A Output General Specifications Parameter Min Typ Max Notes Efficiency Vo=5.0V Vo=3.3V Vo=0.75V 89% 86% 73% 93% 90% 77% Measured at Vin=12V, full load (Current Source) Switching Frequency - 300KHz - Over Temperature Shutdown - 135°C - MTBF 8,791,825 hours Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) Dimensions (Vertical Mount) Inches (L × W × H) Millimeters (L × W × H) 0.9 x 0.4 x 0.243 22.9 x 10.2 x 6.16 Weight - 2.5g - Note: All specifications are typical at 25°C unless otherwise stated. Control Specifications Parameter Min Typ Max Notes Remote On/Off Signal Low (Unit Off) -0.3V - 0.4V Signal High (Unit On) 2.5V - 14V V7BA-03A1A0; Remote On/Off pin open, Unit on. Signal Low (Unit On) -0.3V - 0.4V Signal High (Unit Off) 2.5V - 14V V7BA-03A1AL; Remote On/Off pin open, Unit on. Output Voltage Trim Range (Wide Trim) 0.7525V - 5.0V Output Trim Equations Equation for calculating the trim resistor (in k Ω) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. 17525.0 507.10 −−= adj trim VR 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. )7525.0(0667.07.0 −×−= adjtrim VV RtrimModule Vout GND Trim Vtrim Module Vout GND Trim
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 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 100.0% OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V MODULE 3.3V 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V MODULE 0.75V 45.0% 55.0% 65.0% 75.0% 85.0% OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V
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
2005 Bel Fuse Inc. Specifications subject to change without notice. 020405 CORPORATE FAR EAST EUROPE Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd.
206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre
Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K. Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601 www.belfuse.com Fax 852-2352-3706 Fax 44-1772-888366 www.belfuse.com www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3V-14V Input 0.75V-5.0V/3A Output Pin Connections Pin Function