NON-ISOLATED DC/DC CONVERTERS 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 VRP1-30E3Ax RoHS Compliant Rev.A Features Non-Isolated Under Voltage Protection High Efficiency Output Over-Voltage Shutdown Fixed Frequency Wide Operating Temperature Range High Power Density OCP/SCP Wide Input Power Good Signal Remote Sense 3 Bit VID Trim Remote On/Off Low Cost Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592) Applications Networking Computers and peripherals Telecommunications Description The Bel VRP1-30E3Ax is part of the non-isolated dc/dc converter Power Module series. The module uses a SIP package. These converters are available output voltage trim via the 3 bit VID range from 1.025 Vdc to 1.2 Vdc over a wide range of input voltage (Vin = 6.5 - 13.8 Vdc).The efficiency is typically 82% @ 12Vin and 1.2Vout at full load. Part Selection Output Voltage Input Voltage 1.025 - 1.2 Vdc 6.5 - 13.8 Vdc Max. Output Current 30 A Max. Output Power 36 W Typical Efficiency 82% Model Number With Load Line VRP1-30E3A0 Model Number Without Load Line VRP1-30E3AD Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation V R P1 – 30 E 3A x 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, 30A output 5--- Wide input range (6.5-13.8V) 6---Wide trim 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Absolute Maximum Ratings Parameter Continuous non-operating Input Voltage Min Typ Max Unit -0.3 - 15 V Remote On/Off -0.3 - 15 V Ambient Temperature 0 - 70 C Storage Temperature -40 - 125 C 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 Min 6.5 Typ 12 Max 13.8 Unit V Input Current (full load) - - 7 A Input Current (no load) - 200 400 mA Remote Off Input Current - 20 - mA Input Reflected Ripple Current (rms) - 30 50 mA Input Reflected Ripple Current (pk-pk) - 75 120 mA I t Inrush Current Transient - - 1 As Turn-on Voltage Threshold 6.0 6.2 6.5 V Turn-off Voltage Threshold 5.3 5.5 5.7 V 2 Notes With simulated source impedance of 10uH, 5Hz to 20MHz. Use a 100uF/100V electrolytic capacitor with ESR=1 ohm max, at 200KHz@25°C. 2 CAUTION: This converter is not internally fused. An input line fuse must be used in application. Recommend a fast-acting fuse with maximum rating of 15A on system board. Refer to the fuse manufacture’s datasheet for further information. Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit 1.211 1.22 1.229 V Load Line - 6 - mOhm VRP1-30E3A0 Load Regulation - ±8 ±12 mV VRP1-30E3AD Line Regulation - ±5 ±10 mV Temperature Regulation - ±5 ±10 mV Ripple and Noise (pk-pk) - 40 60 mV Ripple and Noise (rms) - 25 35 mV Ripple and Noise (pk-pk) under worst case - - 80 mV Output Current Range 0 - 30 A Output DC Current Limit - 120 - %Iout Turn on Time - 10 15 mS Output Voltage Set Point Notes VID=000, Io=0A 0-20MHz BW, 831uF cap on output. over all operating input voltage, load and temperature conditions. OCP latch off 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Output Specifications (continued) Min Typ Max Unit Rise Time Parameter - 5 10 mS Overshoot at Turn on - - 5 % Output Capacitance - 831 - uF Notes 470uF Tan cap+1*1uF+4*10+ 6*22+4*47uF ceramic cap Transient Response △V50%~75% of Overshoot - - 60 mV Max Load Settling Time - - 50 uS △V75%~50% of Overshoot - - 60 mV Max Load Settling Time - - 50 uS di/dt=2.5A/us, Vin=12.0Vdc, Ta=25°C, 831uF cap on output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Min Typ Max Unit Efficiency Parameter - 82 - % Switching Frequency - 500 - kHz Weight - 10.2 - g FIT 625 - 1.20 x 0.61 x 0.65 30.48 x 15.49 x 16.52 - Notes Vin=12.0V, full load Calculated Per Bell Core SR-332 (Io=80%load, Ta = 25 C, 9 FIT=10 /MTBF) Dimensions Inches (L × W × H) Millimeters (L × W × H) Note: All specifications are typical at 25 C unless otherwise stated. Efficiency Data efficiency Module 1.2V 100.00% 90.00% 80.00% 70.00% 60.00% 50.00% 40.00% 30.00% 20.00% 10.00% 0.00% 3.0 6.5V 12V 13.8V 10.0 15.0 20.00 24.00 30 output current 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Mar. 07, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Thermal Derating Curves The thermal reference point Tref is shown above. For reliable operation this temperature should not exceed 110C. The output power of the module should not exceed the rated power for the module. Vin=12V, Vo=1.2V 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Ripple and Noise Waveform 12Vdc input, 1.2V output Transient Response Waveforms Vin=12V,Vo=1.2V,50%~75% load Vin=12V,Vo=1.2V,75%~50% load 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Mar. 07, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup & Shutdown Startup time Startup from Vin Ch2: Vo Ch1: Vin Vin=12V,Vo=1.2V, full load with 831uF cap Startup from on/off Ch2: Vo Ch1: on/off Vin=12V,Vo=1.2V full load with 831uF cap Shutdown Vin=12V, Vo=1.2V, full load with 831uF cap 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Remote On/Off Parameter Signal Low (Unit Off) Signal High (Unit On) Active High Current Sink Min -0.3 Typ - Max 0.4 Unit V 2 - 5.5 V 0 - 1 mA Notes The remote on/off pin open, Unit off. Recommended remote on/off circuit for active high Vin+ Vin+ On/off On/o ff 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 Load Line 6 mΩ Load Line with ±31.5 mV Tolerance Band Ooutput Voltage droop (Offset from VID) 0 2 4 6 8 10 12 14 16 18 0.040 0.030 0.020 0.010 0.000 -0.010 -0.020 -0.030 -0.040 -0.050 -0.060 -0.070 -0.080 -0.090 -0.100 -0.110 -0.120 -0.130 -0.140 -0.150 -0.160 -0.170 -0.180 -0.190 -0.200 -0.210 20 22 24 26 28 30 Vout typ Vout max Vout min Load (A) For VRP1-30E3A0 only 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Output Voltage Set-Point Adjustment Trim up circuit (using 3 bit VID: VID2, VID3 and VID4) VID Hex VID7 VID6 VID5 DAC Voltage Output Voltage Set Point (DAC+20mv, Io=0A) 0 1.200V 1.220V 0 1 1.175V 1.195V 0 1 0 1.150V 1.170V 0 1 1 1.125V 1.145V VID4 VID3 VID2 42 0 0 46 0 4A 4E 0 1 VID1 0 1 VID0 0 52 1 0 0 1.100V 1.120V 56 1 0 1 1.075V 1.095V 5A 1 1 0 1.050V 1.070V 5E 1 1 1 1.025V 1.045V Note: VID [4:2] is set to 000b which will set VID=1.2V as default. Input Under-voltage Lockout Input Current Under-voltage Lockout Voltage Falling V1=5.33V V2=6.02V Voltage Rising V1 V2 Input Voltage (V) 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 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 9 NON-ISOLATED DC/DC CONVERTERS 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 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 6V. 4. When a successful soft-start is completed, the power good pin will be pulled high. CH1: Output Voltage CH3: Power Good Typical Start-up Using Remote ON/OFF(Vin=12.0V, Vout=1.2V, Io=30A) Fundamental Circuit Diagram Lf Vin S1 Co Cin S2 On 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Mar. 07, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Layout Layout of components on top side Layout of components on bottom side 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Mechanical Outline Pin Function Pin Function 1 GND 8 Vsense+ 2 GND 9 VID2 3 Vout 10 VID3 4 Vout 11 VID4 5 Vout 12 Enable 6 PWRGD 13 Vin 7 Vsense- 14 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 12 NON-ISOLATED DC/DC CONVERTERS 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mar. 07, 2011 Signal Definitions Pin Name Pin Description GND Common return for both input and output. Vout Output voltage of the converter. PWRGD PWRGD indicates that soft-start has completed and the output voltage is within the regulated range around VID setting. Vsense- Negative remote sense. Vsense+ Positive remote sense. VID2 VID3 VID4 Enable Vin Logic level inputs used to set the output voltage, refer to VID table. Connect VID0 thru VID1 pins to open-drain outputs with external pull-up resistors or to active-pull-up outputs. Valid logic low is -0.3V to 0.4V, valid logic high level is 0.8V to 5.3V. Logic level input used to enable the converter when high. Input voltage of the converter. 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 6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output OutputConverter Mar. 07, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Revision History Date Revision 2011-03-07 A Changes Detail Approval First release YF Sun 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. 030711 14 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