NON-ISOLATED DC/DC CONVERTERS 8.3 Vdc - 14 Vdc Input VRBC-16A2Ax 0.75 Vdc - 5.5 Vdc/16 A Output RoHS Compliant Rev.A • Non-Isolated • Under-voltage Lockout (UVLO) • High Efficiency • Over Temperature Protection • High Power Density • OCP/SCP • Excellent Thermal Performance • Wide Input • Low Cost • Wide Trim • Flexible Output Voltage Sequencing (option) • Remote On/Off • Active Low/High (option) • Able to Sink & Source Current • Remote Sense • Vout Prebias • Industrial Temperature Range Description The Bel VRBC-16A2Ax is part of the non-isolated dc/dc converter series. The modules use a SIP package. These converters are available in a range of output voltages from 0.75 Vdc to 5.5 Vdc over a wide range of input voltage (Vin = 8.3 Vdc - 14 Vdc). The Bel VRBC-16A2Ax has a sequencing feature that enables designers to implement various types of output voltage sequencing when powering. The efficiency is typically 92% at 3.3 Vdc output and 12 Vdc input at full load. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active Low Model Number Active High 0.75 V - 5.5 V 8.3 V - 14 V 16 A 80 W 94% VRBC-16A2AL VRBC-16A2A0 Notes: 1.Change the last character to “C” to indicate 0.20’’ pin length and active low. 2. Add “G” suffix at the end of the model number to indicate Tray Packaging. 3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. Absolute Maximum Ratings Min Typ Max Input Voltage (continuous) Parameter -0.3 V - 15 V Output Enable Terminal Voltage -0.3 V - 15 V 1 -0.3 V - Vin Ambient Temperature -40 °C - 85 °C Storage Temperature -55 °C - 125 °C Sequencing Voltage Notes Notes: All specifications are typical at 25 °C unless otherwise stated. 1. VRBC-16A2Ax 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 not using the sequencing feature, either, 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 - 5.5 Vdc/16 A Output Input Specifications Parameter Min Typ Max Notes 8.3 V 8.3 V 12 V 12 V 14 V 13.2 V Input Voltage Vo, set≤3.63 V Vo, set >3.63 V Input Current (full load) - - 11 A Input Current (no load) - 100 mA - Remote Off Input Current - 2 mA - Input Reflected Ripple Current (pk-pk) Tested with one 1000 uF/25 V AL input capacitor with ESR=0.03 ohm max and 6 × 47uF/16 V tan capacitors with ESR=0.013 ohm max at 100 kHz, & simulated source impedance of 1000 nH, 5 Hz to 20 MHz. - 30 mA I t Inrush Current Transient - 0.2 A s 0.4 A s Turn-on Voltage Threshold - 7.8 V - Turn-off Voltage Threshold - 7.3 V - 2 - 2 2 Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max -2% Vo,set - 2% Vo,set Vin=12 V, full load Load Regulation - 0.4% Vo,set - Io=Iomin to Iomax Line Regulation - 0.3% Vo,set - Vin=Vinmin to Vinmax Regulation Over Temperature (-40°C to +85°C) - 0.4% Vo,set - Tref=Tamin to Tamax 0A - 16 A - 180% Io,out Output Voltage Set Point Output Current Current Limit Threshold - Short Circuit Surge Transient - 1A s 3A s Ripple and Noise (pk-pk) - 50 mV 100 mV Ripple and Noise (rms) - 30 mV 45 mV Turn on Time - 8 mS 20 mS Overshoot at Turn on - - 1% Vo,set 0 uF 0 uF - 5000 uF 1000 uF - 100 mV - - 80 uS - - 100 mV - - 80 uS - Output Capacitance 2 Notes 2 Tested with 0-20 MHz, 10 uF Tantalum capacitor &1 uF ceramic capacitor at the output ESR≥10 mohm ESR≥1 mΩ Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time All di/dt=2.5 A/uS; Vin=12 V; and with 330uF Tantalum capacitors at the output 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 - 5.5 Vdc/16 A Output General Specifications Parameter Min Typ Max - 94% 92% 90% 88% 87% 85% 78% - 250 kHz 280 kHz 310 kHz - 130 °C - 0.7525 V - 5.5 V - - 0.5 V Notes 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 1 Output Trim Range (Wide Trim) Remote Sense Compensation MTBF Measured at Vin=12 V, full load Calculated Per Bell Core SR-332 (IO = 80% Io,max; Vin=12 V; Vo=3.3 V; Ta = 25 °C) 4,619,490 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - 2.0x 0.5 x 0.32 50.8 x 12.7 x 8.13 7.1 g - Notes: All specifications are typical at 25 °C unless otherwise stated. 1. The Tref temperature measurement location: Control Specifications Parameter Remote On/Off Min Typ Max Signal Low (Unit Off) -0.2 V - 0.3 V Signal High (Unit On) - - Vin, max Signal Low (Unit On) -0.2 V - 0.3 V Signal High (Unit Off) 2.5 V - Vin, max 10 mS - - - - 2 V/mS - 100 mV 300 mV 200 mV 500 mV Notes VRBC-16A2A0; Remote On/Off pin open, Unit on. VRBC-16A2AL; Remote On/Off pin open, Unit on. Voltage Sequencing Sequencing Delay Time Sequencing Slew Rate Capability Tracking Accuracy Power-Up Power-Down Delay from Vin, min to application of voltage on SEQ pin Vin, min to Vin, max; Io, min to Io, max; Vseq<Vo 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 - 5.5 Vdc/16 A Output Remote On/Off For Active High Modules (Positive Logic) When the transistor Q1 is in the Off state, the power module is ON. When the transistor Q1 is turned On, the power module is OFF. Vin Vin Module Remote On/Off Q1 GND GND For Active Low Modules (Negative Logic) When the transistor Q1 is in the Off state, the power module is OFF. When the transistor Q1 is turned On, the power module is ON. Vin Vin Module R Remote On/Off Q1 GND GND Output Trim Equations Equation for calculating the trim resistor given the desired output voltage (Vo) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. R trim = 10500 − 1000(Ω ) Vo − 0.7525 Vo (V) 0.7525 1.2 1.5 1.8 2.5 3.3 5.0 Rtrim (KΩ) Open 22.46 13.05 9.024 5.009 3.122 1.472 Vout Sense Module trim Rtrim 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 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.5 Vdc/16 A Output Efficiency Data Module 3.3V 0.98 0.96 0.94 0.92 0.9 0.88 0.86 0.84 2.0 0.96 0.94 8.3V 12.0V 13.2V Efficiency Efficiency Module 5.0V 8.3V 12.0V 14.0V 0.92 0.9 0.88 0.86 4.0 6.0 8.0 10.0 12.0 14.0 0.84 2.0 16.0 4.0 6.0 Output Current Efficiency 96.0% 94.0% 92.0% 90.0% 88.0% 86.0% 84.0% 6.0 8.0 12.0 14.0 16.0 0.94 0.92 0.9 0.88 0.86 0.84 0.82 0.8 8.3V 12.0V 14.0V 4.0 10.0 Module 1.8V Module 2.5V 2.0 8.0 Output Current 10.0 12.0 14.0 16.0 8.3V 12.0V 14.0V 2 4 6 8 10 12 14 16 Output current Module 1.2V Module 1.5V 0.94 0.92 0.9 0.88 0.86 0.84 0.82 0.8 0.78 0.92 0.9 0.88 0.86 0.84 0.82 0.8 0.78 0.76 8.3V 12.0V 14.0V 2 4 6 8 10 12 14 16 8.3V 12.0V 14.0V 2 4 6 8 10 12 14 Module 0.75V 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 8.3V 12.0V 14.0V 2 4 6 8 10 12 14 16 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 16 NON-ISOLATED DC/DC CONVERTERS 8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.5 Vdc/16 A Output Thermal Derating Curves Vo=0.75 V; Vin=12.0 V Vo=1.8 V; Vin=12.0 V Vo=3.3 V; Vin=12.0 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 - 5.5 Vdc/16 A Output Ripple and Noise Waveforms Ripple and noise at full load, 12 Vdc input, 5.0 V output and Ta=25 deg C Ripple and noise at full load, 12 Vdc input, 3.3 V output and Ta=25 deg C Ripple and noise at full load, 12 Vdc input, 0.75 V output and Ta=25 deg C Note: External load with 10 uF tantalum capacitor and 1 uF ceramic at the output. 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 - 5.5 Vdc/16 A Output Transient Response Waveforms External load capacitor Cext=0 uF, di/dt=2.5 A/us 50% to 100% load Transient at 5.0 Vdc output 100% to 50% load Transient at 5.0 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 0.75 Vdc output 100% to 50% load Transient at 0.75 Vdc output 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 - 5.5 Vdc/16 A Output Transient Response Waveforms (continued) External load capacitor Cext=330 uF Tantalum capacitor, di/dt=2.5 A/us 50% to 100% load Transient at 5.0 Vdc output 100% to 50% load Transient at 5.0 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 0.75 Vdc output 100% to 50% load Transient at 0.75 Vdc output Note: All specifications are typical at 12 Vdc input 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 - 5.5 Vdc/16 A Output Mechanical Outline Pin Connections Pin Function 1 Vo 2 Vo 3 Sense+ 4 Vo 5 Ground 6 Ground 7 Vin 8 Vin 9 SEQ 10 Trim 11 Remote 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. ©2007 Bel Fuse Inc. Specifications subject to change without notice. 011507 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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