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| NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output SRBA-06E1Ax RoHS Compliant Rev.B Non-Isolated High Efficiency High Power Density Fixed Frequency Active Low/High (Option) UL60950-1 Recognized (UL/cUL) Under-Voltage Lockout (UVLO) Remote On/Off OCP/SCP Wide Input Wide Trim Range Description The Bel SRBA-06E1Ax 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 5.0 Vdc output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 Vdc to 5.0 Vdc over a wide range of input voltage. 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 3.3 V - 5.0 V 0.75 V - 3.3 V Input Voltage Vo,set+1V -14 V 4.5 V - 14 V Max. Output Current 6A 6A Max. Output Power 30.0 W 19.8 W Typical Efficiency 92% 88% Model Number Active Low SRBA-06E1AL SRBA-06E1AL Model Number Active High SRBA-06E1A0 SRBA-06E1A0 Notes: 1. Add "G" suffix at the end of the model numbers 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 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 Vo, set3.3 V Vo, set3.3 V Input Current (full load) Vo=5.0 V Vo=3.3 V Vo=1.8 V Vo=0.75 V Input Current (no load) Vo=5.0 V Vo=0.75 V Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) 3 mA 120 mA 60 mA 100 mA 20 mA 5 mA 200 mA 100 mA Tested with two 100 uF/25 V input Tantalum capacitors & simulated source impedance of 1uH, 5 Hz to 20 MHz. 2.75 A 1.85 A 1.05 A 0.55 A 4.8 A 4.8 A 3.2 A 1.8 A 4.5 V Vo,set + 1V 12 V 12 V 14 V 14 V Min Typ Max 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Input Specifications (continue) Parameter I t Inrush Current Transient Turn-on Voltage Threshold Vo, set 3.3 V Vo, set = 5.0 V Turn-off Voltage Threshold Vo, set 3.3 V Vo, set = 5.0 V 2 Min - Typ 0.002 A s 4.3 V 6.0 V 2 Max 0.02 A s 4.5 V 6.5 V 2 Notes - 4.0 V 5.5 V 4.3 V 6.0 V Shut down or below 90% set point. Note: All specifications are typical at 25 C unless otherwise stated. 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=5.0 V Vo=3.3 V Vo=0.75 V Ripple and Noise (rms) Vo=5.0 V Vo=3.3 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 -5.0 V 0 uF 0 uF 200 mV 25 uS 200 mV 25 uS 1000 uF 2200 uF 350 mV 50 uS 350 mV 50 uS di/dt=2.5 A/uS; Vin=12 V; and with 10 uF/10 V tantalum capacitor & 1 uF/10 V ceramic capacitor at the output. 35 mV 25 mV 10 mV 6 mS 0% 50 mV 40 mV 15 mV 12 mS 3% 100 mV 80 mV 35 mV 140 mV 120 mV 70 mV Tested with 0-20 MHz BW, with external 10 uF/10 V tantalum capacitor & 1 uF/10 V ceramic capacitor at the output Min -2%Vo,set -2.5%Vo,set 0A 6.8 A Typ 0.4%Vo,set 0.3%Vo,set 0.5%Vo,set 0.25 A s 2 Max 2%Vo,set 3.5%Vo,set 6A 15 A - Notes Vin=12 V, Io=Io max Over all operating input voltage, resistive load, and temperature conditions Io=Iomin to Iomax Vin=Vinmin to Vinmax Tref=Tamin to Tamax 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output General Specifications Parameter Efficiency Vo=5.0 V Vo=3.3 V Vo=1.8 V Vo=0.75 V Switching Frequency Output Voltage Trim Range (wide trim) MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 0.8 x 0.45 x 0.251 20.32 x 11.42 x 6.38 5g Surface Mount 88% 85% 80% 68% 220 kHz 0.7525 V 92% 88% 84% 73% 250 kHz 3,560,000 hours 280 kHz 5V Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25 C) Measured at Vin=12 V, Io=Io, max Min Typ Max Notes 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) Min -0.3 V 2.5 V -0.3 V 2.5 V Typ Max 0.4 V 14 V 0.4 V 14 V Notes SRBA-06E1A0; Remote On/Off pin open, Unit on. SRBA-06E1AL; 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. Vtrim 0.7 0.0667 (Vo 0.7525) Module Vout 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Efficiency Data MODULE 5.0V MODULE 3.3V 100.0% EFFICIENCY 100.0% 80.0% 60.0% 40.0% 20.0% 0.0% 1A 2A 3A 4A 5A OUTPUT CURRENT EFFICIENCY 7.0V 12.0V 14.0V 80.0% 60.0% 40.0% 20.0% 0.0% 1A 2A 3A 4A 5A OUTPUT CURRENT 4.5V 12.0V 14.0V MODULE 1.8V 100.0% EFFICIENCY MODULE 0.75V 90.0% 80.0% 70.0% 60.0% 50.0% 0.6A 1.5A 3.0A 4.5A 6.0A 4.5V 12.0V 14.0V 90.0% 80.0% 70.0% 60.0% 0.6A 1.5A 3.0A 4.5A 6.0A OUTPUT CURRENT 4.5V 12.0V 14.0V EFFICIENCY OUTPUT CURRENT 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Thermal Derating Curves Vo=0.75 V Vo=2.5 V Vo=5 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Ripple and Noise Waveforms 12 V input, 0.75 V output 12 V input, 1.8 V output 12 V input, 3.3 V output 12 V input, 5.0 V output Note: Ripple and noise at full load, 0-20 MHz BW, with 10 uF/10 V tantalum capacitor and 1 uF/10 V ceramic capacitor at the output, 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Transient Response Waveforms 50% to 100% load step at Vin=12 V, Vo=0.75 V 100% to 50% load step at Vin=12 V, Vo=0.75 V 50% to 100% load step at Vin=12 V, Vo=1.8 V 100% to 50% load step at Vin=12 V, Vo=1.8 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Transient Response Waveforms (continued) 50% to 100% load step at Vin=12 V, Vo=3.3 V 100% to 50% load step at Vin=12 V, Vo=3.3 V 50% to 100% load step at Vin=12 V, Vo=5 V 100% to 50% load step at Vin=12 V, Vo=5 V Note: Transient response at di/dt=2.5 A/uS, with 10 uF/10 V tantalum capacitor and 1 uF/10 V ceramic capacitor at the output, 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/6 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 Function Remote On/Off Vin+ N/A Ground Trim Vout+ 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. 042709 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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