NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 xRP2-50E2A0 RoHS Compliant PRELIMINARY Rev.B Features Non-Isolated Output Over-Voltage Shutdown High Efficiency OCP/SCP Fixed Switching Frequency Excellent Thermal Performance Low Cost Low Output Ripple Wide Input Voltage Range Power Good Signal Wide Output Trim Range Remote On/Off Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592) TUV EN60950-1 Recognized (Pending) UL60950-1 Recognized (UL/cUL) (Pending) Applications Networking Computers and peripherals Telecommunications Description The xRP2-50E2A0 is a non-isolated dc/dc converter that operates over a wide range of input voltage (Vin = 5 Vdc - 13.8 Vdc). This unit can provide a precisely regulated output voltage from 0.6 Vdc to 5.0 Vdc and can deliver up to 50 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 0.6 Vdc - 5 Vdc 5 Vdc - 13.8 Vdc Max. Output Current 50 A Max. Output Power 250 W Typical Efficiency 86% Model Number Active High VRP2-50E2A0 Model Number Active High 0RP2-50E2A0 Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation V R P2 – 50 E 2A 0 1 2 3 4 5 6 7 1---Vertical mount, change “V” to “0” means through hole mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name, SIP 4---Series code 5--- Wide input range (5-13.8V) 6---Wide output range (0.6-5V) 7---Enable, active high 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 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Absolute Maximum Ratings Min Typ Max Unit Continuous Input Voltage -0.3 - 15 V Remote On/Off -0.3 - 15 V Ambient Temperature 0 - 70 C Storage Temperature -55 - 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 Operating Input Voltage Vo≤ 2.8 V Vo > 2.8 V Min Typ Max Unit 5 1.8*Vo 12 12 13.8 13.8 V V Input Current (full load) - - 38 A Remote Off Input Current - 10 25 mA Input Reflected Ripple Current (rms) - 10 - mA Input Reflected Ripple Current (pk-pk) - 35 - mA I t Inrush Current Transient - - 1 As Turn-on Voltage Threshold 4.4 4.6 4.8 V Turn-off Voltage Threshold 4.0 4.3 4.6 V 2 Notes With simulated source impedance of 1 uH, 5 Hz to 20 MHz. Use a 1000 uF/16 V electrolytic capacitor with ESR=0.1 ohm max, at 100 kHz at 25°C. 2 Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point Min Typ Max Unit Notes Vo≥1 V Vo＜1 V -1.5 -10 - +1.5 +10 %Vo mV Vin=Vinmin, Io=Iomax Vo≥1 V Vo＜1 V - - 0.6 12 %Vo mV Vo≥1 V Vo＜1 V - - 0.3 9 %Vo mV - - 0.02 %Vo/C - - 110 100 100 80 60 60 mV mV mV mV mV mV Load regulation Line Regulation Regulation Over Temperature (0deg.C-70deg.C) Ripple and Noise (pk-pk) Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.5 V Vo=1.0 V Vo=0.6 V Test conditions: 0-20MHz BW, with a 1µF ceramic capacitor and a 10 uF Tantalum cap at output. 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 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Output Specifications (continued) Parameter Min Typ Max Unit - - 35 35 35 30 25 25 mV mV mV mV mV mV Ripple and Noise (pk-pk) under worst case - - 150 mV Output Current Range 0 - 50 A 105 130 180 %Io Turn on Time - - 10 mS Rise Time - - 3 mS Overshoot at Turn on - - 0.5 % ESR≥1 mΩ 0 - 4700 uF △V50%~100% Overshoot - - 300 mV of Max Load Settling Time - - 100 uS △V100%~50% Overshoot - - 300 mV of Max Load Settling Time - - 100 uS Notes Ripple and Noise (rms) Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.5 V Vo=1.0 V Vo=0.6 V Output DC Current Limit Output Capacitance Test conditions: 0-20MHz BW, with a 1µF ceramic capacitor and a 10 uF Tantalum cap at output. Vo=5V, over all operating input voltage, load and temperature conditions. Transient Response Test conditions: di/dt = 10 A/uS; Vin =12 V; Co=0 uF. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Parameter Min Typ Max Unit - 93 91 88 86 84 82 75 68 - % % % % % % % % - 330 - kHz Output Voltage Trim Range 0.6 - 5 V Over Voltage Protection 110 115 130 %Vo - 28.5 - g 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=1.0 V Vo=0.6 V Switching Frequency Weight FIT 297 - Vin=12V, full load Trim pin is open, Vo = 0.6 V. Vin=12 V, Io=full load. Calculated Per Bell Core SR-332 (IO =40 A, Vo=1.92 V; Vin=12 V; Ta = 25 C, 100LFM forced air flow, 9 FIT=10 /MTBF) 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 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 General Specifications (continued) Parameter Dimensions Inches (L × W Millimeters (L × W Dimensions Inches (L × W Millimeters (L × W Min Typ Max Unit Notes × H) × H) 1.45 x 1.1 x 0.73 36.83 x 27.94 x 18.5 - Through Hole Mount × H) × H) 1.45 x 1.1 x 0.69 36.83 x 27.94 x 17.53 - Vertical Mount Note: All specifications are typical at 25 C unless otherwise stated. Efficiency Data Efficiency Curve Vo=1.2 V 85.0% 95.0% 80.0% 90.0% 75.0% 5V 70.0% 12 V 65.0% Efficiency Efficiency Efficiency Curve Vo=0.6 V 13.8 V 60.0% 85.0% 5V 80.0% 12 V 75.0% 13.8 V 70.0% 55.0% 65.0% 50.0% 60.0% 5 12.5 25 37.5 50 5 12.5 Output Current (A) 37.5 50 Efficiency Curve Vo=2.5 V 95.0% 100.0% 90.0% 95.0% 85.0% 5V 80.0% 12 V 13.8 V 75.0% Efficiency Efficiency Efficiency Curve Vo=1.8 V 90.0% 5V 85.0% 12 V 80.0% 70.0% 75.0% 65.0% 70.0% 60.0% 13.8 V 65.0% 5 12.5 25 37.5 50 5 12.5 25 37.5 Output Current (A) Output Current (A) Efficiency Curve Vo=3.3 V Efficiency Curve Vo=5.0 V 100.0% 100.0% 95.0% 95.0% 90.0% 6V 85.0% 12 V 80.0% 13.8 V Efficiency Efficiency 25 Output Current (A) 90.0% 9V 85.0% 12 V 80.0% 75.0% 75.0% 70.0% 70.0% 65.0% 50 13.8 V 65.0% 5 12.5 25 Output Current (A) 37.5 50 5 12.5 25 37.5 50 Output Current (A) 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 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Thermal Derating Curves Vin=12 V, Vo=0.6 V Vin=12 V, Vo=1.8 V Vin=12 V, Vo=3.3 V Vin=12 V, Vo=1.2 V Vin=12 V, Vo=2.5 V Vin=12 V, Vo=5.0 V Note: Maximum junction temperature of semiconductors derated to 120C. 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 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output April 17, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Ripple and Noise Waveforms 12 Vdc input, 0.6 Vdc/50 A output 12 Vdc input, 1.2 Vdc/50 A output 12 Vdc input, 1.8 Vdc/50 A output 12 Vdc input, 2.5 Vdc/50 A output 12 Vdc input, 3.3 Vdc/50 A output 12 Vdc input, 5.0 Vdc/50 A output Note: Ripple and noise at full load, 0-20 MHz BW, with a 10 uF and a 1uF ceramic cap 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 6 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output April 17, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Transient Response Waveforms Vout= 0.6 V 0%-50% Load Transient Vout=0.6 V 50%-0% Load Transient Vout=1.2 V 0%-50% Load Transient Vout=1.2 V 50%-0% Load Transient Vout=1.8 V 0%-50% Load Transient Vout=1.8 V 50%-0% Load Transient 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 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output April 17, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Transient Response Waveforms (continued) Vout= 2.5 V 0%-50% Load Transient Vout=2.5 V 50%-0% Load Transient Vout=3.3 V 0%-50% Load Transient Vout=3.3 V 50%-0% Load Transient Vout=5 V 0%-50% Load Transient Vout=5 V 50%-0% Load Transient Note: Transient response at di/dt = 10 A/uS, with extemal electrolytic cap 4700 uF, 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 8 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input April 17, 2009 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Startup & Shutdown Rise Time Test Condition: 12Vdc input, 1.8Vdc/50A output, Co=0uF, Ta=25 deg C Startup time Startup from on/off Ch1: Vo Ch2: on/off Test Condition: 12Vdc input, 1.8Vdc/50A output Co=0uF, Ta=25 deg C Shutdown Test Condition: 12Vdc input, 1.8Vdc/50A output, Co=0uF, 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 9 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Control Specifications Parameter Min Typ Max Notes Signal Low (Unit Off) -0.3 V - 0.8 V Signal High (Unit On) 2V - Vin,max Current Source/Sink 0 mA - 3.3 mA PwGood = High = Power Good 2.4 V - 5.25 V - - 2 mA PwGood = Low = Power Not Good 0V - 0.4 V - - 4 mA Remote On/Off (Active High) Remote On/Off pin is open, unit is off. PwGood (PowerGood) Recommended remote on/off circuit for active high Vin+ Vin+ On/off On/off Vin- Vin- Control with open collector/drain circuit Control with photocoupler circuit Vin+ Vin+ On/off On/off Vin- Vin- Vcc Control with logic circuit Permanently off Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 10 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Remote Sense This module has remote sense compensation feature. It can minimize the effects of resistance between module’s output and load in system layout and facilitates accurate voltage regulation at load terminals or other selected point. 1. The remote sense lines carries very little current and hence do not require a large cross-sectional area. 2. This module compensates for a maximum drop of 10% of the nominal output voltage. 3. If the unit is already trimmed up, the available remote sense compensation range should be correspondingly reduced. The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage. 4. When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the system are incorporated within the feedback loop of this module. It can make an effect on the module's compensation, affecting the stability and dynamic response. A 0.1uF ceramic capacitor can be connected at the point of load to de-couple noise on the sense wires. 5. Recommend the connection of remote sense compensation as below figure. There are a resistor RS+ (51.1 ohm) from Vo+ to Sense+ and a resistor RS- (51.1 ohm)) from Vo- to Sense- inside of this module. RS+ Vo+ Sense+ Load RS- Sense- V o- 6. If not using remote sense compensation, please connect sense directly to output at module's pin, that is, connect sense+ to Vo+ and sense- to Vo- at module's pin, the shorter the better. see below figure. RS+ V o+ Sense+ Load RS- Sense- Vo- Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 11 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Output Trim Equations Equations for calculating the trim resistor are shown below. The Trim Up resistor should be connected between the Trim+ pin and Trim- pin. The Trim Up resistor is NIL,Vout=0.6V Maximum trim up voltage is 5V. The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage. R trim 1 .2 ( K ) Vo 0 . 6 Vout Module Trim+ Rtrim Trim– Over Current Protection To provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry. If the overcurrent condition persists, the module will shut down into hiccup mode and restart. The module operates normally when the output current goes into specified range. 12Vdc input, 1.8Vdc 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 12 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Over Voltage Protection The output overvoltage protection consists of circuitry that monitors the voltage on the output terminals. If the voltage on the output terminals exceeds the over voltage protection threshold, the module will shutdown into latch off mode. The overvoltage latch can be reset by either cycling the input power or toggling the on/off signal for one second at least. Input Under-voltage Lockout Input Current Under-voltage Lockout Voltage Falling V1=4.3V V2=4.6V Voltage Rising V1 V2 Input Voltage (V) Power Good 1. This module has a power good indicator output. Power good pin used positive logic and is open collector. 2. Power good pin can sink 10mA. 3. The maximum voltage pulled up externally on Power Good pin should not exceed 30V. 4. When the output reaches 90% of the nominal set-point, the power good pin will be pulled high. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 13 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Mechanical Outline 0RP2-50E2A0 Pin Connections Pin Function Pin Function 1 2 3 4 5 6 7 8 Vout Vout Vout 9 10 11 12 13 14 15 PwGOOD SenseSense+ Vin Vin GND GND GND GND Enable TrimTrim+ Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 14 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. April 17, 2009 Mechanical Outline (continued) VRP2-50E2A0 Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Function Vout Vout Vout GND GND Enable TrimTrim+ PwGOOD SenseSense+ Vin Vin GND GND 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 15 NON-ISOLATED DC/DC CONVERTERS 5 Vdc - 13.8 Vdc Input Converter April 17, 2009 0.6 Vdc - 5.0 Vdc/50 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Labeling Information Heatsink side view TECHNICAL REVISIONS - The appearance of products, including safety agency certifications and D.C. (Date Code) pictured on labels, may change depending on the date manufactured. Revision History Date Version Changes Detail Approval 2009-4-9 A First release XF JIANG 2009-4-17 B 1. Correct error in part number explanation; 2. Remove some “TBD” information. XF JIANG RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. 2009 Bel Fuse Inc. Specifications subject to change without notice. 041709 16 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