NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 14, 2011 VRP1-20E2AC RoHS Compliant PRELIMINARY Rev.A Features Non-Isolated Wide Output Trim Range High Efficiency Output Over-Voltage Shutdown Fixed Switching Frequency OCP/SCP Low Cost Low Output Ripple Excellent Thermal Performance Power Good Signal Wide Input Voltage Range Remote On/Off Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592) Applications Networking Computers and peripherals Telecommunications Description The VRP1-20E2AC is a non-isolated dc/dc converter that operates over a wide range of input voltage (Vin = 4.5 Vdc - 13.8 Vdc). This unit can provide a precisely regulated output voltage from 0.591 Vdc to 5.1 Vdc and can deliver up to 20 A of output current. This unit is designed to be highly efficient and low cost. The converter is provided in an industry standard package. Part Selection Output Voltage Input Voltage 0.591 Vdc - 5.1Vdc 4.5 Vdc - 13.8 Vdc Max. Output Current 20 A Max. Output Power 100 W Typical Efficiency 94% Model Number Active High VRP1-20E2AC Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation V R P1 – 20 E 2A C 1 2 3 4 5 6 7 1---Vertical mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name, SIP 4---Series code, 20A output 5--- Wide input range (4.5-13.8V) 6---Wide output range (0.591-5.1V) 7---Suffix Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 1 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 14, 2011 Absolute Maximum Ratings Min Typ Max Unit Input Voltage (continuous) -0.3 - 15 V Output Enable Terminal Voltage -0.3 - 15 V Ambient Temperature 0 - 70 C Storage Temperature -40 - 125 C Parameter Notes Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device. Input Specifications Parameter Input Voltage Min Typ Max Unit 4.5 1.3*Vo 12 12 13.8 13.8 V V Input Current (full load) - - 20 A Input Current (no load) - 150 300 mA Remote Off Input Current - 50 - mA Input Reflected Ripple Current (pk-pk) - 50 100 mA Input Reflected Ripple Current (rms) - 20 40 mA I t Inrush Current Transient - - 1 As Turn-on Voltage Threshold - 4.2 - V Turn-off Voltage Threshold - 3.9 - V Vo<3.45V Vo>=3.45V 2 Notes An input line fuse must always be used. Use a 1000uF AL-Cap on the input. 2 A 30.1K resistor is connected from Enable to Vin. Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit Output Voltage Set Point Accuracy -1.5 - 1.5 %Vo,set Load regulation - - 1 %Vo,set Line Regulation - - 0.5 %Vo,set Regulation Over Temperature (0 C to +70 C) - - 1 %Vo,set Output Current 0 - 20 A Current Limit Threshold - 150 - % Iomax Output Ripple and Noise (pk-pk) - 40 80 mV Output Ripple and Noise (rms) - 20 40 mV Short Circuit Surge Transient - 1 3 As Notes Vin=12V, lout=half load 0-20MHz BW, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output. 2 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 2 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 14, 2011 Output Specifications (continued) Parameter Min Typ Max Unit Turn On Time - 2 10 mS Overshoot at Turn on and off - - 5 % Output Capacitance 0 - 1000 uF Notes Transient Response △V50%~75% Overshoot of Max Load Settling Time △V75%~50% Overshoot of Max Load Settling Time Vo=All - 200 300 mV - - 50 uS - 200 300 mV - - 50 uS di/dt = 2.5 A/uS; Vin =12 V; with 10 uF tantalum cap and 1 uF ceramic at the output, Ta=25 C Note: All specifications are typical at 25°C unless otherwise stated. General Specifications Parameter Min Typ Max Unit - 94 92 90 85 70 - % % % % % - 500 - kHz 0.591 - 5.1 V Remote Sense Compensation - - 0.2 V Weight - 9.7 - g Notes Efficiency Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.5 V Vo=0.591 V Switching Frequency Output Voltage Trim Range MTBF TBD - 1.45 x 0.61 x 0.40 36.83 x 15.49 x 10.15 - Vin=12V, full load Vin=12 V, Io=full load Calculated Per Bell Core SR-332 (IO = 80%Iomax; Vin=12 V; Ta = 25 C) Dimensions Inches (L × W × H) Millimeters (L × W × H) Note: All specifications are typical at 25 C unless otherwise stated. Control Specifications Parameter Min Typ Max Unit Signal Low (Unit Off) -0.3 - 0.4 V Signal High (Unit On) 2 - 5.5 V 2.4 - 6 V - - 2 mA 0 - 0.35 V - - 5 mA Notes Remote On/Off (Active High) Remote On/Off pin is open, unit is on. PwGood (PowerGood) PwGood = High = Power Good PwGood = Low = Power Not Good Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 3 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 14, 2011 Output Trim Equation The Rtrim resistor should be connected between the Trim pin and GND pin. Vout R trim 1 . 182 Vo 0 . 591 Sense kΩ Module trim Rtrim GND Efficiency Data Module 5V Module 2.5V 100.0% 100.0% 98.0% 95.0% 92.0% 90.0% 7V 12V 88.0% 14V 86.0% 84.0% efficiency 94.0% 90.0% 4.5V 12V 14V 85.0% 80.0% 75.0% 82.0% 80.0% 0.0 70.0% 2.0 5.0 10.1 15.0 20.00 0.0 2.0 output current 5.0 10.0 output current 15.0 20.0 Module 0.591V efficiency efficiency 96.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 45.0% 40.0% 0.0 4.5V 12V 14V 2.0 5.0 10.0 15.0 20.0 output current Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 4 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 14, 2011 Thermal Derating Curves Vout=0.591V Vout=1.2 V Vout=2.5 V Vout=3.3 V Vout=5 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 5 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Apr. 14, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Ripple and Noise Waveforms 12 Vdc input, 0.591 Vdc output 12 Vdc input, 2.5 Vdcoutput 12 Vdc input, 5 Vdc output Note: Ripple and noise at full load, 0-20 MHz BW, with a 10 uF tantalum cap and a 1 uF ceramic cap, 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 6 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Apr. 14, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Transient Response Waveforms Vout= 2.5 V 50%-75% Load Transients Vout= 5 V 50%-75% Load Transients Vout=2.5 V 75%-50% Load Transients Vout=5 V 75%-50% Load Transients Note: Transient response at di/dt = 2.5 A/uS, with 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 7 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input Apr. 14, 2011 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 8 Function Vout Trim+ GND PwGOOD Enable Vin Sense+ Sense- Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a peak solder temperature of no more than 260 ºC for less than 5 seconds. Note: 1) All Pins: Material - Copper Alloy; Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate. 2) Undimensioned components are shown for visual reference only. 3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm). Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 8 NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input 0.591 Vdc - 5.1 Vdc/20 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 14, 2011 Revision History Date Revision 2011-04-14 PA Changes Detail Approval First release JZ Wang RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. 2011 Bel Fuse Inc. Specifications subject to change without notice. 041411 9 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