S7BA-03E1AX BEL | Alldatasheet
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Technical content
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 4.5V-14V Input 0.75V-5.0V/3A Output
- Non-Isolated • OCP/SCP
- Fixed Frequency • Remote On/Off
- High Efficiency • Wide Trim Range
- High Power Density • Wide Input Range
- Under-voltage Lockout (UVLO) • Active Low/Active High (Option)
Description
The Bel S7BA-03E1Ax modules are a series of non-isolat ed DC/DC converters that de liver up to 3A of output current with full load efficiency of 93% at 5.0V outpu t. These modules provide precisely regulated voltage programmable via external resistor from 0.75V to 5.0V over a wide range of input voltage. Their open-frame construction and small footprint enable designers to develop cost and space-effi cient solutions. Standard features include remote On/Off, programmable output voltage and over current protection. 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 4.5V - 14V 3A 15W 93% S7BA-03A1A0 S7BA-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 Vo,set≤3.3V Vo,set=5V 4.5V 7.0V 12V 12V 14V 14V Input Current (full load) Vo=5.0V Vo=3.3V Vo=0.75V 1.35A 1.00A 0.25A 3.70A 2.50A 0.65A Input Current (no load) Vo=5.0V Vo=3.3V Vo=0.75V 65mA 50mA 15mA 80mA 60mA 20mA Remote Off Input Current - 3mA 6mA S7BA-03E1Ax 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 4.5V-14V Input 0.75V-5.0V/3A Output Input Specifications (continued) Parameter Min Typ Max Notes Input Reflected Ripple Current (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V 150mA 100mA 35mA 200mA 150mA 45mA Input Reflected Ripple Current (RMS) Vo=5.0V Vo=3.3V Vo=0.75V 30mA 20mA 8mA 40mA 35mA 15mA Tested with simulated source impedance of 1uH, 5Hz to 20MHz and two 100uF/25V external input Tantalum capacitors. I2t Inrush Current Transient - 0.01A 2s 0.02A 2s Turn-on Voltage Threshold Vo set=5V Vo set≤3.3V 5.5V 4.3V 6.5V 4.5V Turn-off Voltage Threshold Vo set=5V Vo set≤3.3V 5.5V 4.0V 6.0V 4.3V Output Specifications Parameter Min Typ Max Notes Output Voltage Set Point -2%Vo,se t - 2%Vo,set Vin=12V, lo=lomax Output Voltage Set Point -3.5%Vo,set - 2.5%Vo,set Over all operating input voltage, resistive load, and temperature conditions Load Regulation 0.4%Vo,set 0.2%Vo,set 0.4%Vo,set lo=lomin to lomax Line Regulation 0.4%Vo,set 0.3%Vo,set 0.4%Vo,set Vin=Vinmin to Vinmax Regulation Over Temperature (-40°C to +85°C) - 0.5%Vo,set - Output Current 0A - 3A Current Limit Threshold 5A - 9.5A Short Circuit Surge Transient - 0.1A 2s 0.2A 2s Ripple and Noise1 (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V 100mV 80mV 55mV 120mV 100mV 80mV Ripple and Noise1 (RMS) Vo=5.0V Vo=3.3V Vo=0.75V 30mV 20mV 15mV 40mV 30mV 20mV Test conditions: 0-20MHz BW, with external 10uF/10V Tantalum capacitor and 1uF/10V ceramic capacitor at the output. Ripple and Noise2 (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V 60mV 40mV 20mV 80mV 50mV 30mV Ripple and Noise2 (RMS) Vo=5.0V Vo=3.3V Vo=0.75V 15mV 12mV 5mV 25mV 20mV 10mV Test conditions: 0-20MHz BW, with external 10uF/10V Tantalum capacitor 1uF/10V ceramic capacitor and two 22uF/10V ceramic capacitors at the output. Turn on Time - 8mS 12mS Overshoot at Turn on - 0% 3% Output Capacitance 0uF - 1200uF Transient Response 50% ~ 100% Max Load - 150mV 200mV Settling Time - 25uS 40uS 100% ~ 50% Max Load - 150mV 200mV Settling Time All - 25uS 40uS Test conditions: di/dt = 2.5A/uS, Vin=12V, and with external 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 4.5V-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 90% 88% 77% 93% 91% 80% Measured at Vin=12V, full load Switching Frequency 200KHz 230KHz 250KHz Output Voltage Trim Range (Wide Trim) 0.7525V - 5V MTBF 6,350,000 hours Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) Dimensions (Surface Mount) Inches (L × W × H) Millimeters (L × W × H) 0.8 x 0.45 x 0.251 20.32 x 11.42 x 6.38 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 Signal Low (Unit On) -0.3V - 0.4V Signal High (Unit Off) 2.5V - 14V Remote On/Off pin open, Unit on. 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 4.5V-14V Input 0.75V-5.0V/3A Output Efficiency Data MODULE 5.0V 60.0% 70.0% 80.0% 90.0% 100.0% OUTPUT CURRENT EFFICIENCY 7.0V 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 4.5V 12.0V 14.0V MODULE 0.75V 50.0% 60.0% 70.0% 80.0% 90.0% OUTPUT CURRENT EFFICIENCY 4.5V 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 4.5V-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. 020605 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 4.5V-14V Input 0.75V-5.0V/3A Output RECOMMENDED PAD LAYOUT Pin Connections Pin Function
1 Remote On/Off
2 Vin
3 N/A
4 Ground
5 Trim
6 Vout
PAD SIZE: