ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 0RCY-50T12x RoHS Compliant Rev.E Features Isolated Over Temperature Protection High Efficiency OCP/SCP High Power Density Low Cost Fixed Frequency (330 kHz) Output Voltage Trim Input Under-Voltage Lockout Positive/Negative Remote Sense Output Over-Voltage Shutdown Basic Insulation Pre-bias Start Up Remote On/Off UL60950-1 Recognized (UL/cUL) (Pending) Applications Networking Computers and peripherals Telecommunications Description The 0RCY-50T12x is isolated dc/dc converter that operates from a wide input range (36 Vdc - 75 Vdc). This unit will provide up to 72 W of output power. The unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection, over voltage shut down, over temperature protection and under-voltage lockout. This converter is provided in an industry standard 1/8 brick package. Part Selection Output Voltage 12 Vdc Input Voltage 36 Vdc - 75 Vdc Max. Output Current 6A Max. Output Power 72 W Typical Efficiency 92% Model Number Active High 0RCY-50T12L Model Number Active Low 0RCY-50T120 Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R CY – 50 T 12 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 (12V) 7---Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of customer. 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 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 Absolute Maximum Ratings Min Typ Max Unit Input Voltage (continuous) -0.3 - 80 V Remote On/Off -0.3 - 18 V - - 1500 V Input to Each Output Resistance 10M - - ohm Ambient Temperature -40 - 85 C Storage Temperature -55 - 125 C Parameter I/O Isolation Voltage 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 36 Typ 48 Max 75 Unit V Max Input Current (full load) - - 2.4 A Input Current (no load) - 50 100 mA Remote Off Input Current - 20 30 mA Input Reflected Ripple Current (pk-pk) - 20 30 mA I t Inrush Current Transient - - 0.1 As Input Fuse (not internally) - - 5 A Turn-on Voltage Threshold 33 34 35 V Turn-off Voltage Threshold 31 32 33 V Input Over Voltage Lockout 76 78 80 V 2 Notes Tested with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 47 uF/100 V electrolytic cap with ESR = 1 ohm max. at 200 kHz at 25 C. 2 Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit 11.76 12.0 12.24 V Load Regulation - ±12 ±24 mV line Regulation - ±12 ±24 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±80 ±120 mV Ripple and Noise (rms) - 12 20 mV Ripple and Noise (pk-pk) - 50 80 mV Output Current Range 0 - 6 A Output Voltage Set Point Notes Vin=72V, max load on output, 20MHz BW, with 10uF tantalum and 1uF ceramic cap at the output. 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 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 Output Specifications (continued) Parameter Min Typ Max Unit Output DC Current Limit 7.0 - 10 A Output Over Voltage Clamp 13.6 - 15.6 V Turn on Time - 50 80 mS Rise Time - 30 40 mS External Admissible Capacitive Load 0 - 1000 uF - 200 300 mV - 150 250 uS - 200 300 mV - 150 250 uS Notes Non-latching Transient Response 50% ~ 75% Max Load 75% ~ 50% Max Load Overshoot Settling Time Overshoot Vo= 12V Settling Time di/dt=0.1 A/us, Vin=48 Vdc, Ta=25 °C, with a 1 µF ceramic cap and a 10 uF tantalum cap at output. Note: All specifications are typical at nominal input, full load at 25°C unless noted. General Specifications Parameter Min Typ Max Unit Efficiency 90 92 - % Switching Frequency 310 330 350 kHz Isolation capacitance - 1500 - pF Remote Sense Compensation - - 10 % 9.6 - 13.2 V Over Temperature Protection - 120 - C Weight - 40 - g Output Voltage Trim Range MTBF TBD - 2.30 x 0.896 x 0.490 58.41 x 22.76 x 12.44 - Notes Measured at Vin=48 V, full load The total voltage increased by trim and remote sense should not exceed 10%Vo. Calculated Per Bell Core SR-332 (Io=80%load, Ta = 25 C) Dimensions Inches (L × W × H) Millimeters (L × W × H) Note: All specifications are typical at 25 C unless otherwise stated. Remote On/Off Parameter Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low Active High Min -0.3 Typ - Max 0.8 Unit V 2.4 - 18 V -0.3 - 0.8 V 2.4 - 18 V 0 - 1 mA Notes 0RCY-50T12L. The remote on/off pin open, Unit off. 0RCY-50T120. The remote on/off pin open, Unit on. 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 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 Output Trim Equations Trim Resistor Calculate Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between the Trim pin and Sense(-) pin. The Trim Up resistor should be connected between the Trim pin and the Sense(+) pin. Only one of the resistors should be used for any given application. Sense(+) Rtrimdown 511 10.22k delta Module Trim Rtrimdown Sense(-) Rtrimup ( (100 delta) Vo 5.11 511 10.22)k 1.225 delta delta Sense(+) Rtrimup Module Trim Sense(-) Note: delta Vo _ req Vo 100 % Vo 400 5000 360 4500 Trim resi stor value,Rtrim_up(KOhm) Trim resi stor value Rtrim_down(KOhm) Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=12 V 320 280 240 200 160 120 80 3500 3000 2500 2000 1500 1000 500 40 0 4000 9.8 10.02 10.24 10.46 10.68 10.9 11.12 11.34 11.56 11.78 Adjusted output voltage Vo,adj (V) 12 0 12 12.12 12.24 12.36 12.48 12.6 12.72 12.84 12.96 13.08 13.2 Adjusted output voltage Vo,adj(V) 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 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 Output Trim Equations (continued) Trim Voltage Calculate Equations for calculating the trim voltage are shown below. Vtrim is the required voltage between TRIM and Sense(-). Sense(+) Vtrim ( Vo _ req 2 . 464 1 . 24 )[V ] Vo Module Trim Sense(-) Efficiency Data Efficient Curve 90% 80% 70% Efficient 60% 50% 40% 30% 20% 36 V 10% 48 V 75 V 0% 0A 0.6A 1.5A 3A Output Current (A) 4.5A 6A 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 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 Ripple and Noise Waveforms 36 Vdc input, 12 Vdc/6 A output 48 Vdc input, 12 Vdc/6 A output 75 Vdc input, 12 Vdc/6 A output Note: Ripple and noise at full load, 0-20 MHz BW, Ta=25 deg C, with a 0.1uF ceramic cap 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 6 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. May 17, 2011 Thermal Derating Curve Vin=48 V, with maximum junction temperature of semiconductors derated to 120 degree C. Transient Response Waveforms 50%-75% Load 75%-50% Load Note: Transients at Vin=48 V, di/dt=0.1 A/us@Ta=25℃ 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 36 Vdc - 75 Vdc Input May 17, 2011 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline Pin Connections Pin Name Function Pin Dia 1 Vin+ 0.040’’ 2 On/Off 3 4 5 6 7 8 VinVoutSenseTrim Sense+ Vout+ Positive input voltage Input to turn converter on and off, referenced to VinNegative input voltage Negative output voltage Negative remote sense Output voltage trim Positive output voltage Positive output voltage 0.040’’ 0.040’’ 0.062’’ 0.040’’ 0.040’’ 0.040’’ 0.062’’ Notes: 1. Pin 5 must be connected to Vout-. 2. Leave Pin 6 open for nominal voltage. 3. Pin 7 must be connected to Vout+. 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 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input OutputConverter May 17, 2011 12 Vdc /6 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Revision History Date Revision 2011-05-17 E Changes Detail Approval Add trim equation for trim voltage. 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. 2011 Bel Fuse Inc. Specifications subject to change without notice. 051711 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