ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 2010 0RCY-C2TV2x RoHS Compliant Rev.C Features • Isolated • Input Under/Over Voltage Lockout • High Efficiency • Output Voltage Trim • Fixed Frequency (300 KHz) • Basic Insulation • High Power Density • OCP/SCP • Low Cost • Over Temperature Protection • Remote On/Off • • Positive/Negative Remote Sense Output Over-Voltage Protection with Auto-recovery • Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592) • UL60950-1 Recognized (UL/cUL) (Pending) Applications • Networking • Computers and peripherals • Telecommunications Description The 0RCY-C2TV2x is isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 60 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection and under-voltage lockout. This converter is provided in an industry standard eighth brick package. Part Selection Output Voltage 1.2 Vdc Input Voltage 48 Vdc Max. Output Current 50 A Max. Output Power 60 W Typical Efficiency 86% Model Number Active High 0RCY-C2TV20 Model Number Active Low 0RCY-C2TV2L Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R CY – C2 T V2 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 (1.2V) 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 2010 Absolute Maximum Ratings Min Typ Max Unit -0.3 - 80 V - - 100 V Remote On/Off -0.3 - 18 V I/O Isolation Voltage Parameter Input Voltage (continuous) Input Voltage (transient) Notes 100mS maximum 1500 - - V Ambient Temperature -40 - 85 °C Storage Temperature -55 - 125 °C 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 Input Voltage Transient Rate - - 7 V/mS Input Current (full load) - - 3.0 A Input Current (no load) - - 60 mA Remote Off Input Current - 10 15 mA Input Reflected Ripple Current (rms) - 5 10 mA Input Reflected Ripple Current (pk-pk) - - 30 mA I t Inrush Current Transient - - 0.1 As Turn-on Voltage Threshold 33 - 35.5 V Turn-off Voltage Threshold 32 - 34.5 V 2 Notes With simulated source impedance of 10 uH, 5Hz to 20MHz. Use a 100 uF/100 V electrolytic cap with ESR=1 ohm max, at 200 KHz@25°C. 2 CAUTION: This converter is not internally fused. An input line fuse must be used in application. Note: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit 1.176 1.20 1.224 V Load Regulation - ±3 ±6 mV Line Regulation - ±3 ±5 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±4 ±9 mV Total Regulation - ±10 ±19 mV Ripple and Noise (rms) - - 10 mV Ripple and Noise (pk-pk) - - 50 mV Output Current Range 0 - 50 A Output Voltage Set Point Notes Vin=48 V, Io=50%load Vin=75 V, 0-20MHz BW, with a 1µF ceramic capacitor and a 100 µF 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 2010 Output Specifications (continued) Parameter Min Typ Max Unit 52 - 62 A Short Circuit Surge Transient - 2 4 As Turn on Time - - 40 mS Overshoot at Turn on - 0 - % Output Capacitance 0 - 20,000 uF Output DC Current Limit Notes 2 Transient Response 25% ~ 50% Max Load 50% ~ 25% Max Load Overshoot Settling Time Overshoot Vo= 1.2V Settling Time - - 50 mV - - 250 uS - - 50 mV - - 250 uS di/dt=0.1A/us, Vin=48Vdc, with a 1µF ceramic capacitor and a 330 µF ESR≤50mOhm cap at output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Parameter Min Typ Max Unit Efficiency (full load) 84 86 - % Efficiency (half load) 85 89 - % Switching Frequency 270 300 330 kHz Isolation capacitance - 2200 - pF 90 - 110 % Remote Sense Compensation - - 10 % Over Temperature Protection - 125 - °C 1.39 - 1.6 V - 28 - g Over Voltage Trim Range Over Voltage Protection Weight FIT TBD - 2.30 x 0.90 x 0.40 58.42 x 22.78 x 10.26 - Notes Measured at Vin=48 V The total voltage increased by trim and remote sense should not exceed 10%Vo. Calculated Per Bell Core SR-332 (Vin=48V, 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. 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 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 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 Min -0.7 Typ - Max 0.8 Unit V 2.4 - 18 V -0.7 - 0.8 V 2.4 - 18 V 0 - 1 mA Current Sink Notes The remote on/off pin open, Unit off. The remote on/off pin open, Unit on. Efficiency Efficiency Data 94% 92% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 5.00 36 V 48 V 75 V 12.50 25.00 37.50 50.00 Output Current (A) Thermal Derating Curve Vin=48V, with 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 4 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 2010 Ripple and Noise Waveform 75Vdc input, 1.2Vdc/50A output Note: Ripple and noise at full load, with a 1uF ceramic cap and a 100uF Tantalum cap at output, and Ta=25 deg C. Transient Response Waveforms Vout=1.2V, 50% to 75% Load Transients Vout=1.2V, 75% to 50% Load Transients Note: Transient response at di/dt=0.1A/us, Vin=48Vdc, Ta=25°C, with a 1µF ceramic capacitor and 330µF ESR ≤50mOhm 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 5 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 2010 Output Trim Equations 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. Rtrimdown = Vout 511 − 10.22[kΩ] delta Module (100 + delta ) ⋅ Vo ⋅ 5.11 511 − − 10.22 [k Ω ] 0.6125 ⋅ delta delta Vout Module Connecting an external resistor between the TRIM pin and the Sense (+) pin increases the output voltage set point. Note: delta = Rtrimdown GND Connecting an external resistor between the TRIM pin and the Sense (-) pin decreases the output voltage set point. Rtrimup = Trim Rtrimup Trim GND (Vo _ req − Vo ) × 100 [% ] Vo Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=1.2 V 400 5000 360 4500 Trim resistor value,Rtrim_up(KOhm) Trim resistor value Rtrim_down(KOhm) Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections. The voltage between the remote-sense pins and the output terminals must not exceed the output voltage sense range: ≤ 10% x Vout. If not using the remote-sense feature to regulate the output voltage at the point of load, connect SENSE (+) to Vout and SENSE (-) to GND at the module. The tracks, that connect the sense pins to the load, must have a resistance << than 10 ohm (for example maximum 100 mOhm). 320 280 240 200 160 120 80 40 0 0.96 4000 3500 3000 2500 2000 1500 1000 500 0.98 1.01 1.03 1.06 1.08 1.1 1.13 Adjusted output voltage Vo,adj (V) 1.15 1.18 1.2 0 1.2 1.21 1.22 1.24 1.25 1.26 1.27 1.28 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 1.3 1.31 6 1.32 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Aug. 10, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline Pin Connections Pin Name Pin Dia 1 2 3 4 5 6 7 8 Vin+ RC VinVoutSenseTrim Sense+ Vout+ 0.040’’ 0.040’’ 0.040’’ 0.062’’ 0.040’’ 0.040’’ 0.040’’ 0.062’’ 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 7 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.2 Vdc /50 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 10, 2010 Revision History Date Revision 2008-04-21 PA 2008-11-25 2010-08-10 Changes Detail Approval First release HF Fan B Update load regulation, output noise, OCP, turn on time, transient, TD, NR, TR, MD and trim down HF Fan C update TR, cover, TD, MD and No load input current 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. ©2010 Bel Fuse Inc. Specifications subject to change without notice. 081010 8 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