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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-10A2AX * * * * * * * Non-Isolated Fixed Frequency High Efficiency Low Cost Wide Input Flexible Output Voltage Sequencing Output Voltage Prebias RoHS Compliant * * * * * * * * Rev.A Under-Voltage Lockout (UVLO) Over Temperature Shutdown OCP/SCP Wide Trim Remote Sense Remote On/Off Active Low/High (Option) Industrial Temperature Range Description The Bel VRBC-10A2AX are series of the non-isolated dc/dc converter Power Module. 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 Bel VRBC-10A2AX has a sequencing feature that enables designers to implement various types of output voltage sequencing when powering. The efficiency is typically 95% at 5 Vdc output 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-10A2AL Model Number Active High VRBC-10A2A0 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 Sequencing Voltage 1 Min -0.3 V -0.3 V -0.3 V -40 C -55 C Typ - Max 15 V 15 V Vin 85 C 125 C Notes Ambient Temperature Storage Temperature Notes: All specifications are typical at 25 C unless otherwise stated. 1. VRBC-10A2AX series of modules include a sequencing feature that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin or leave it unconnected. 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 Input Voltage Vo, set 3.63 V Vo, set > 3.63 V Input Current (full load) Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) 8.3 V 8.3 V 12 V 12 V 80 mA 2 mA 14 V 13.2 V 6.5 A 100 mA Tested with one 1000 uF/25 V AL input capacitor with ESR=0.03 ohm max and 4 x 47 uF/25 V tan capacitors with ESR=0.013 ohm max at 100 kHz, & simulated source impedance of 1000 nH, 5 Hz to 20 MHz. An input line fuse must always be used. Min Typ Max Notes Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 - 0.2 A s 7.9 V 7.8 V 2 30 mA 0.4 A s 2 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 5V 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 Tested with 0-20 MHz, 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) Voltage Sequencing Sequencing Delay Time Sequencing Slew Rate Capability Tracking Accuracy Power-Up Power-Down 100 mV 200 mV 200 mV 400 mV 25 mS 2 V/mS Vinmin to Vinmax; Iomin to Iomax; Vseq 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 output voltage (Vo) is shown below. The Rtrim resistor should be connected between the trim pin and GND. Vout 10500 R trim = - 1000 Vo - 0 . 7525 Sense Module trim Rtrim GND Equation for calculating the trim voltage (in V) given the desired output voltage (Vo) is shown below. The Vtrim voltage should be connected between the trim pin and GND. Vout Vtrim= {0.7-0.0667x(Vo-0.7525)} Sense Module trim Vtrim GND Thermal Derating Curve Vin=12 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 5.0 V 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 14.0 V Module 3.3V 100.0% 90.0% 80.0% 70.0% 60.0% 1A 2.5 A 5A 7.5 A 10 A Output current 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 12 Vdc input, 0.75 V output 12 Vdc input, 3.3 V output 12 Vdc input, 5.0 V output Note: Ripple and Noise at full load, with 10 uF tantalum capacitor and 1 uF ceramic 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 Transient Response Waveforms Transients 50% to 100% load 0.75 Vdc output Transients 100% to 50% load 0.75 Vdc output Transients 50% to 100% load 3.3 Vdc output Transients 100% to 50% load 3.3 Vdc output Transients 50% to 100% load 5.0 Vdc output Transients 100% to 50% load 5.0 Vdc output Note: Transient response at 12 V input, di/dt=2.5 A/uS, with external 470 uF tantalum 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 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 SEQ 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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