VRBC-10F2A_10

NON-ISOLATED DC/DC CONVERTERS 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. RoHS Compliant • • • • • • • VRBC-10F2Ax • • • • • • • Non-Isolated High Efficiency High Power Density Rev.B Under-Voltage Lockout (UVLO) Wide Input Range Wide Trim Range Remote On/Off Remote Sense Converter Can Sink and Source Current UL60950-1 Recognized (UL/cUL) Fixed Frequency (300kHz) OCP/SCP Flexible Output Voltage Sequencing Over Temperature Protection Description The Bel VRBC-10F2Ax modules are a series of non-isolated dc/dc converters that deliver up to 10 A of output current with full load efficiency of 94% at 3.3 Vdc output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (2.4 Vdc - 5.5 Vdc). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. The open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, remote sense, over current protection, short current protection, wide input, and programmable output voltage. Part Selection Output Voltage 0.75 V - 3.63 V 1 Input Voltage 2.4 V - 5.5 V Max. Output Current 10 A Max. Output Power 36.3 W Typical Efficiency 94% Model Number Active Low VRBC-10F2AL Model Number Active High VRBC-10F2A0 Notes: 1. These modules use a buck topology, so the output voltages must be 0.5 V less than the input voltage. 2. Add “G” to the end of the Model Number to indicate Tray Packaging. Part Number Explanation V R BC – 10 F 2A x 12 3 4 5 6 7 1--- Vertical Mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name, bobcat 4---Series code, output current 10A 5--- Input range (2.4-5.5V) 6---Output voltage, wide trim 7---Suffix, “L” mean active low, “0” mean active high 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Min -0.3 V -0.3 V -0.3 V -40 °C -55 °C Typ Max 5.8 V 5.8 V Vin 85 °C 125 °C Notes Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Sequencing Voltage 1 Ambient Temperature Storage Temperature Notes: All specifications are typical at 25 °C unless otherwise stated. 1. VRBC-10F2Ax 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 the SEQ pin floating. Input Specifications Parameter Input Voltage Input Current (full load) Vo=3.3 V Vo=1.8 V Vo=0.75 V Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 Min 2.4 V - Typ 7.0 A 4.04 A 1.89 A 80 mA 15 mA 120 mA 35 mA 2.2 V 2.0 V Max 5.5 V 8.06 A 6.98 A 4.06 A 22 mA 0.2 A s 2 Notes Vo, set ≤ Vin-0.5 V Tested with two 100uF/10V tantalum input capacitors (P/N: TPSC107K010R0075 AVX) & simulated source impedance of 1 uH, 5Hz to 20MHz. 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 (-40 °C to +85 °C) Output Current Current Limit Threshold Min -2%Vo,set -3%Vo,set 0A 15 A Typ 0.4%Vo,set 0.3%Vo,set 0.5%Vo,set Max 2%Vo,set 3%Vo,set 10 A 30 A Notes Vin=5 V, lo=lomax full load Over all operating input voltages, resistive loads and temperature conditions Io=Iomin to Iomax Vin=Vinmin to Vinmax Tref=Tamin to Tamax 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Min ESR ≥ 1mohm ESR ≥ 10mohm 0 uF 0 uF All All Typ 25 mV 8 mV 4 mS 0%Vo,set 200 mV 25 uS 200 mV 25 uS 120 mV 50 uS 120 mV 50 uS Max 2 2A s 50 mV 15 mV 8 mS 3%Vo,set 1000 uF 4700 uF Notes Tested with 0-20MHz, 10uF/16V tantalum capacitor & 1uF/10V TDK ceramic capacitor at the output Output Specifications (continued) Parameter 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 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time di/dt=2.5 A/uS; Vin=5 V; and with 10 uF/16 V tantalum capacitor & 1uF/10V ceramic capacitor at the output di/dt=2.5 A/uS; Vin=5 V; and with two 150 uF/10 V tantalum capacitors & 1 uF/10 V ceramic capacitor at the output Note: All specifications are typical at nominal input (Vin=5 V), full load at 25 °C unless otherwise stated. General Specifications Parameter Efficiency Vo=3.3 V Vo=1.8 V Vo=0.75 V Switching Frequency Over Temperature Shutdown Output Trim Range (Wide Trim) Remote Sense Compensation MTBF Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.0 x 0.5 x 0.36 50.8 x 12.7 x 9.2 8.3g 91% 86% 77% 250 kHz 0.7525 V 94% 89% 80% 300 kHz 125 °C 6,900,000 hours 350 kHz 3.63 V 10% Total adjustment of trim, setpoint and remote sense combined should not exceed 3.63 V. Vo=0.7525 V when trim pin open Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25°C) Measured at Vin=5 V, full load (current source) Min Typ Max 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Min -0.3 V 1.5 V -0.3 V 1.5 V 0.05 V 10 mS Typ 100mV 200mV Max 0.3 V 5.8 V 0.3 V 5.8 V Vin 2 V/mS 200mV 400mV Delay from Vin, min to application of voltage on SEQ pin Notes VRBC-10F2A0; Remote On/Off pin open, Unit on. VRBC-10F2AL; Remote On/Off pin open, Unit on. Sequencing Voltage applied on SEQ should be higher than output voltage. Control Specifications Parameter Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) Sequencing Voltage Sequencing Slew Rate Capability Sequencing Delay Time Tracking Accuracy Power-Up Power-Down Output Trim Equations Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout Rtrim 21.07 = − 5.11 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. Vout Vrim = 0.7 − 0.1698 × (Vadj − 0.7525 ) Module 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Efficiency Data 98.0% 96.0% 94.0% 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 1.0 4.5V 5.0V 5.5V 2.5 5.0 7.5 10.0 Vo=3.3 V 100.0% 95.0% 90.0% 85.0% 80.0% 3.0V 5.0V 5.5V 75.0% 70.0% 1.0 2.5 5.0 7.5 10.0 Vo=1.8 V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1 3 5 8 10 2.4V 5.0V 5.5V Vo=0.75 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Thermal Derating Curves Vin= 5.0 V, Vo= 3.3 V Vin= 5.0 V, Vo= 1.8 V Vin=5.0 V, Vo=0.75 V Vin=3.3 V, Vo=0.75 V/1.8 V/2.5 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Ripple and Noise Waveforms Vin=5 V, Vo=0.75 V Vin=5 V, Vo=1.8 V Vin=5 V, Vo=3.3 V Note: Ripple and noise tested at 0-20 MHz BW, 10 uF/16 V tantalum capacitor and 1 uF/10 V ceramic capacitor, full load, 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Transient Response Waveforms 50% to 100% load step at Vin=5 V, Vo=0.75 V 100% to 50% load step at Vin=5 V, Vo=0.75 V 50% to 100% load step at Vin=5 V, Vo=1.8 V 100% to 50% load step at Vin=5 V, Vo=1.8 V 50% to 100% load step at Vin=5 V, Vo=3.3 V 100% to 50% load step at Vin=5 V, Vo=3.3 V Note: Transient response tested at di/dt=2.5 A/uS, with 10 uF/16 V Tantalum capacitor and 1 uF/10 V ceramic capacitor, 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 Function Vout Vout Remote Sense Vout Ground Ground Vin Vin SEQ Trim Remote On/Off 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 2.4 Vdc - 5.5 Vdc Input Mar. 19, 2010 0.75 Vdc - 3.63 Vdc/10 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Revision History Date 2010-3-19 Revision B Changes Detail 1. Change to new datasheet format; 2. Add part number explanation. Approval XF RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2010 Bel Fuse Inc. Specifications subject to change without notice. 031910 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