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| NON-ISOLATED DC/DC CONVERTERS 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output VRBC-10A1AX * * * * * * * Non-Isolated High Efficiency Fixed Frequency Low Cost RoHS Compliant * * * * * * * Rev.A Under Voltage Lockout (UVLO) OCP/SCP Remote Sense Wide Trim Remote On/Off Remote On/Off Logic Output Voltage Prebias Industrial Temperature Range Over Temperature Shutdown Wide Input Description The Bel VRBC-10A1AX modules are series of the non-isolated dc/dc converters. The modules use a SIP package. These converters are available in a range of output voltages from 0.75 Vdc to 5.0 Vdc over a wide range of input voltage (Vin = 8.3 Vdc - 14 Vdc).The efficiency is typically 95%@5.0 Vout at full load. Part Selection Output Voltage 0.75 V - 5.0 V Input Voltage 8.3 V - 14 V Max. Output Current 10 A Max. Output Power 50.0 W Typical Efficiency 95% Model Number Active Low VRBC-10A1AL Model Number Active High VRBC-10A1A0 Notes: 1. Add "G" suffix at the end of the model number 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. 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output Input Specifications Parameter Operating Input Voltage Vo 3.63 V Vo > 3.63 V Input Current (full load) Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Min 8.3 V 8.3 V Typ 12 V 12 V 80 mA 2 mA 100 mA Max 14 V 13.2 V 6.5 A Tested with one 1000 uF/25 V Aluminum capacitor with ESR=0.03 ohm max and 4 x 47 uF/16 V Tantalum capacitors with ESR=0.013 ohm max at 100 kHz, & simulated source impedance of 1000 nH, 5 Hz to 20 MHz. 2 Notes An input line fuse must always be used. Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 - 30 mA 0.2 A s 7.9 V 7.8 V 2 0.4 A s - Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter 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) Ripple and Noise (rms) Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO = 0.75 V -5 V 100 mV 50 uS 100 mV 50 uS di/dt=2.5 A/uS; Vin=12 V; and with 470 uF Tantalum capacitors at the output Min -2% Vo,set 0A 0 uF Typ 0.3% Vo,set 0.2% Vo,set 0.4% Vo,set 200% Io 1A s 40 mV 20 mV 8 mS 2 Max 2% Vo,set 10 A 3A s 100 mV 40 mV 20 mS 1% Vo,set 5000 uF 2 Notes Vin=12 V, full load Tref=Tamin to Tamax 0-20 MHz BW, with 10 uF tantalum capacitor & 1 uF ceramic capacitor Note: All specifications are typical at nominal input, 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output General Specifications Parameter Efficiency Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.75 V Switching Frequency Over Temperature Shutdown Output Voltage Trim Range Remote Sense Compensation MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.0 x 0.5 x 0.32 50.8 x 12.7 x 8.13 7.1 g 1 Min 265 kHz 0.7525 V - Typ 95% 93% 92% 90% 89% 87.5% 81% 300 kHz 130 C 5,114,191 hours Max 335 kHz 5.0 V 0.5 V Notes Measured at Vin=12 V, full load Calculated Per Bell Core SR-332 (IO = 80% Load; Vo=3.3 V; Vin=12 V; Ta = 25C) Notes: All specifications are typical at 25 C unless otherwise stated. 1. The Tref temperature measurement location: Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) -0.2 V -0.2 V 2.5 V 0.3 V Vin, max 0.3 V Vin, max VRBC-10A1A0; Remote On/Off pin open, Unit on. VRBC-10A1AL; Remote On/Off pin open, Unit on. 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output Output Trim Equations Equation for calculating the trim resistor (in ) given the desired adjusted voltage (Vo) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout 10500 R trim = - 1000 Vo - 0 . 7525 Sense Module trim Rtrim GND 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={0.7-0.0667x(Vo-0.7525)} Sense Module trim Vtrim GND Thermal Derating Curve Vin=12.0 V, Vo = 3.3 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output Efficiency Data Module 5.0V 100.0% Efficiency 90.0% 80.0% 70.0% 60.0% 1A 2.5 A 5A Output current 7.5 A 10 A 8.3 V 12.0 V 13.2 V Module 3.3V 100.0% 90.0% 80.0% 70.0% 60.0% 1A 2.5 A 5A Output current 7.5 A 10 A Efficiency 8.3 V 12.0 V 14.0 V Module 0.75V 90.0% Efficiency 80.0% 70.0% 60.0% 50.0% 1A 2.5 A 5A Output current 7.5 A 10 A 8.3 V 12.0 V 14.0 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output Ripple and Noise Waveforms Ripple and noise at full load, 0.75 V output Ripple and noise at full load, 3.3 V output Ripple and noise at full load, 5.0 V output Note: Ripple and Noise at external load with 10 uF tantalum capacitor and 1 uF ceramic on 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output Transient Response Waveforms 50% to 100% load transient at 0.75 Vdc output 100% to 50% load transient at 0.75 Vdc output 50% to 100% load transient at 3.3 Vdc output 100% to 50% load transient at 3.3 Vdc output 50% to 100% load transient at 5.0 Vdc output 100% to 50% load transient at 5.0 Vdc output Note: Transient response at Vin=12 V, di/dt=2.5 A/uS, external load with 470 uF tantalum capacitor at the output, and 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 Function Vo Vo Vo, sense Vo GND GND Vin Vin N/A Trim 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)2007 Bel Fuse Inc. Specifications subject to change without notice. 011707 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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