ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 0RLC-25T Series RoHS Compliant Rev.B Features Isolated Output Over Voltage Shutdown High Efficiency Output Voltage Trim High Power Density OCP/SCP Fixed Frequency (230 KHz) Over Temperature Protection Low Cost Remote On/Off Input Under Voltage Lockout Remote On/Off Logic (Optional) Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592) Applications Networking Computers and peripherals Telecommunications Description The 0RLC-25T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 30 W of output power. These units are designed to be high efficient and very low cost. Features include remote on/off, over current protection, and under voltage lockout. These converters are provided in an industry standard package. Part Selection Output Voltage Input Voltage Max. Output Current 7A Max. Output Power 23 W Typical Efficiency 88% Model Number Active High 0RLC-25T033 Model Number Active Low 0RLC-25T03L 3.3 Vdc 36 Vdc - 75 Vdc 5.0 Vdc 12.0 Vdc 36 Vdc - 75 Vdc 5A 25 W 90% 0RLC-25T050 0RLC-25T05L 36 Vdc - 75 Vdc 2.5 A 30 W 90% 0RLC-25T120 0RLC-25T12L 15.0 Vdc 24.0 Vdc 36 Vdc - 75 Vdc 2.0 A 30 W 90% 0RLC-25T150 0RLC-25T15L 36 Vdc - 75 Vdc 1.25 A 30 W 89% 0RLC-25T240 0RLC-25T24L Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R LC – 25 T xx x 1 2 3 4 5 6 7 1---Through hole mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Input range (36-75V) 6---Output voltage 7---Enable, “0” or “3” mean active high, and “L” means active low Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 1 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Absolute Maximum Ratings Min Typ Max Unit Input Voltage (continuous) -0.3 - 80 V Remote On/Off -0.3 - 12 V Ambient Temperature -40 - 85 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 Min Typ Max Unit 36 - 75 V Input Current (full load) - - 1.1 A Input Current (no load) - 25 40 mA Remote Off Input Current - 3 10 mA Input Reflected Ripple Current (rms) - 10 20 mA Input Reflected Ripple Current (pk-pk) - 40 60 mA I t Inrush Current Transient - 0.1 0.5 As Turn-on Voltage Threshold 31 34 36 V Turn-off Voltage Threshold 30 33 35 V Input Voltage 2 Notes With simulated source impedance of 10 uH, 5 Hz to 20 MHz. And use a 100 uF/ 100 V electrolytic capacitor with ESR=1 ohm max, at 200 kHz. 2 Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V 3.234 4.900 11.76 14.70 23.52 3.3 5.0 12.0 15.0 24.0 3.366 5.100 12.240 15.300 24.480 V V V V V VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V - ±1 ±2 ±5 ±8 ±10 ±3 ±5 ±10 ±15 ±20 mV mV mV mV mV VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V - ±2 ±4 ±9 ±10 ±15 ±5 ±8 ±18 ±20 ±30 mV mV mV mV mV Notes Output Voltage Set Point Test condition: Vin=48 V, IO=50% load at the output. Line Regulation Load Regulation Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 2 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Output Specifications (continued) Parameter Min Typ Max Unit Regulation Over Temperature (-40 C to +85 C) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V - 30 40 100 120 150 50 70 170 200 240 mV mV mV mV mV - 33 46 114 140 150 58 83 198 250 330 mV mV mV mV mV VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V - 40 40 40 80 85 75 75 75 120 150 mV mV mV mV mV VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V - 10 10 10 15 20 20 20 20 30 40 mV mV mV mV mV VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V 0 0 0 0 0 - 7.0 5.0 2.5 2.0 1.25 A A A A A 7.7 5.5 3.0 2.2 1.5 - 12.0 8.0 4.2 3.4 2.2 A A A A A Short Circuit Surge Transient - 0.5 1 As Turn on Time - 10 25 mS Overshoot at Turn on - 0 5 % 0 0 0 0 0 - 3300 2200 330 330 330 Notes Total Regulation VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Ripple and Noise (pk-pk) Ripple and Noise (rms) Test condition of the output ripple and noise: 0-20 MHz BW, with a 1 µF ceramic capacitor and a 10 uF/35 V electrolytic capacitor at the output. Output Current Range Output DC Current Limit VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V 2 Output Capacitance VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V uF Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 3 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Output Specifications (continued) Parameter Transient Response Min Typ Max Unit - 75 150 75 150 100 200 100 200 mV uS mV uS VO= 12.0 V - 100 150 100 150 150 150 150 150 200 150 200 200 200 200 mV uS mV uS mV uS mV VO= 15.0 V - 150 100 200 100 200 200 300 200 uS mV uS mV Settling Time - 200 300 uS Overshoot - 150 300 mV - 300 150 300 500 300 500 uS mV uS Overshoot Settling Time Overshoot Settling Time 50% ~ 75% Max Load 25% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load Settling Time Overshoot Settling Time Overshoot 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load Settling Time Overshoot Settling Time 25% ~ 50% Max Load VO= 3.3 V - VO= 5.0 V - VO= 24.0 V - Notes Test condition of the transient response: di/dt=0.1 A/us, Vin=48 V, with a 220 uF/35 V electrolytic capacitor at the output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Parameter Min Typ Max Unit 85 87 87 87 86 200 1500 - 88 90 90 90 89 230 1500 260 - % % % % % kHz V pF 90 - 110 110 - % C 3.90 5.70 13.60 17.25 27.60 - 20 5.0 7.0 14.2 22.5 36.0 - V V V V V g Notes Efficiency VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Switching Frequency I/O Isolation Voltage Isolation Capacitance Output Voltage Trim Range Over Temperature Protection Over Voltage Protection VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Weight MTBF 2,602,427 hours 2.0 x 1.0 x 0.438 50.8 x 25.4 x 11.14 - Measured at Vin=48 V, IO=Io, max Test condition of Over Voltage Protection: Vin=48 V, Io=100% load at 25 C ambient. Calculated Per Bell Core SR-332 (IO = 80% load; Vin=48 V; Vo=3.3 V, Ta = 25 C) Dimensions Inches (L × W × H) Millimeters (L × W × H) 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 4 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Remote On/Off Parameter Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High Current Sink Min -0.3 Typ - Max 0.8 Unit V 3.5 - 12 V -0.3 - 0.8 V 3.5 - 12 V 0.3 - 0.75 mA Notes The remote on/off pin open, Unit off The remote on/off pin open, Unit on Output Trim Equations Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. Vout Rtrim _ down Rtrim _ up Rtrim_down A B Vnom Vadj Module Trim GND Vout C D Vadj Vnom Module Trim Rtrim_up GND Vnom A B C D 24.0 272.305 15.664 31.634 3.010 15.0 92.125 9.360 18.400 2.000 12.0 53.320 9.260 14.025 3.650 5.0 19.300 15.120 6.350 10.000 3.3 21.711 40.610 13.032 30.100 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 5 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Efficiency Data 90% 80% 75% EFFICIENCY EFFICIENCY 85% 36V 48V 75V 70% 65% 60% 55% 50% 0.7A 1.75A 3.5A 5.25A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 36 48 75 0.5A 7A 1.25A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 36 48 75 0.625A 1.25A 3.75A 5A 0RLC-25T050 EFFICIENCY EFFICIENCY 0RLC-25T033 0.25A 2.5A OUTPUT CURRENT (A) OUTPUT CURRENT (A) 1.875A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 36 48 75 0.2A 2.5A 0.5A 1.0A 1.5A 2.0A OUTPUT CURRENT (A) OUTPUT CURRENT (A) 0RLC-25T150 EFFICIENCY 0RLC-25T120 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.125A 36 48 75 0.3215A 0.625A 0.9375A 1.25A OUTPUT CURRENT (A) 0RLC-25T240 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 6 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Thermal Derating Curves 0RLC-25T033 0RLC-25T050 0RLC-25T120 0RLC-25T150 0RLC-25T240 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 7 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Ripple and Noise Waveforms Ripple and noise at full load, 3.3 Vdc/7 A output Ripple and noise at full load, 5.0 Vdc/5 A output Ripple and noise at full load, 12 Vdc/2.5 A output Ripple and noise at full load, 15 Vdc/2 A output Ripple and noise at full load, 24 Vdc/1.25 A output Note: Ripple and noise at 48 Vdc input, with a 0.47 uF ceramic cap at the output, 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Nov. 29, 2010 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Transient Response Waveforms Transients 25% to 50% load 3.3 Vdc output Transients 50% to 75% load 3.3 Vdc output Transients 25% to 50% load 5.0 Vdc output Transients 50% to 75% load 5.0 Vdc output Transients 25% to 50% load 12 Vdc output Transients 50% to 75% load 12 Vdc output Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 9 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Transient Response Waveforms (continued) Transients 25% to 50% load 15 Vdc output Transients 25% to 50% load 24 Vdc output Transients 50% to 75% load 15 Vdc output Transients 50% to 75% load 24 Vdc output Note: Transient response at 48 Vdc input, di/dt=0.1 A/uS, with external 220 uF electrolytic cap and 0.47 uF 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 10 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Nov. 29, 2010 Mechanical Outline Pin Connections Pin Function 1 2 3 4 5 6 Vin+ VinCNT Vo+ VoTrim 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 11 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output OutputConverter Nov. 29, 2010 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Revision History Date Revision Changes Detail Approval 2007-03-02 A First Release. XF Jiang 2010-11-29 B Update the notes in Remote On/Off. 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. 2010 Bel Fuse Inc. Specifications subject to change without notice. 112910 12 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