ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 2010 0RCY-C2T12x RoHS Compliant Rev.C Features • Isolated • Output Over-Voltage Shutdown • High Efficiency • OCP/SCP • High Power Density • Over Temperature Protection • Fixed Frequency (300 kHz) • Output Voltage Trim • Low Cost • Remote On/Off • Input Under-Voltage Lockout • Positive/Negative Remote Sense • Basic Insulation • 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-C2T12x is isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 144 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 12 Vdc Input Voltage 36 Vdc - 75 Vdc Max. Output Current 12 A Max. Output Power 144 W Typical Efficiency 93% Model Number Active High 0RCY-C2T120 Model Number Active Low 0RCY-C2T12L Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R CY – C2 T 12 x 1 2 3 4 5 6 7 1---Through hole 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--- 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 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 2010 Absolute Maximum Ratings Parameter Continuous Input Voltage Min Typ Max Unit -0.3 - 80 V - - 100 V -0.3 - 18 V 1500 - - V 500 - - V 1500 - - V Ambient Temperature -40 - 85 °C Storage Temperature -55 - 125 °C Input Transient Voltage Remote On/Off Input to baseplate isolation voltage output to baseplate isolation voltage I/O Isolation Voltage Notes 100 mS maximum 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 36 Typ 48 Max 75 Unit V Input Current (full load) - - 5.0 A Input Current (no load) - 60 120 mA Remote Off Input Current - 10 15 mA Input Reflected Ripple Current (rms) - 5 10 mA Input Reflected Ripple Current (pk-pk) - 25 40 mA I t Inrush Current Transient - 0.1 0.5 As Turn-on Voltage Threshold 33 34 36 V Turn-off Voltage Threshold 31 32 34 V 2 Notes Tested with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 100 uF/100 V electrolytic capacitor 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 Output Voltage Set Point Min 11.76 Typ 12.00 Max 12.24 Unit V Load Regulation - ±12 ±24 mV Line Regulation - ±12 ±24 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±30 ±60 mV Total Regulation - ±60 ±100 mV Ripple and Noise (pk-pk) - 90 150 mV Ripple and Noise (rms) - 30 50 mV Output Current Range 0 - 12 A Output DC Current Limit 13 15 17 A Notes Vin=48V, Io=50% load 0-20 MHz BW, with a 1µF ceramic capacitor and a 10uF 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 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 2010 Output Specifications (continued) Parameter Min Typ Max Unit 2 Short Circuit Surge Transient - 2 4 As Turn on Time - 60 100 mS Overshoot at Turn on - 0 - % Output Capacitance 0 - 680 uF Notes Transient Response △V25%~50% of Overshoot - 400 600 mV Max Load Settling Time - 200 300 uS △V50%~25% of Overshoot - 400 600 mV Max Load Settling Time - 200 300 uS di/dt=0.1A/us, Vin=48Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at the output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Efficiency Parameter Min 91 Typ 93 Max - Unit % Switching Frequency 270 300 330 kHz Isolation Capacitance - 3900 - pF 80 - 110 %Vo Remote Sense Compensation - - 10 %Vo Over Temperature Protection - 125 - °C Over Voltage Protection - 125 - % Weight - 47 - g Output Voltage Trim Range FIT TBD - 2.30 x 0.90 x 0.50 58.41 x 22.91 x 12.70 - Notes Vin=48V, full load The total voltage increased by trim and remote sense should not exceed 10%Vo. Vin=48V, full load, in hiccup mode Calculated Per Bell Core SR-332 (Vin=48 V, Vo=12 V, Io=12 A, Ta = 25 °C, FIT=109/MTBF) Dimensions Inches (L × W × H) Millimeters (L × W × H) Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low Active High Min Typ Max Unit Notes -0.3 - 0.8 V 2.4 - 18 V 0RCY-C2T12L. The remote on/off pin open, Unit off. -0.3 - 0.8 V 2.4 - 18 V 0 - 1 mA 0RCY-C2T120. 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 48 Vdc Input 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 2010 Efficiency Data Efficiency Curve 94% 92% Efficiency 90% 88% 86% 84% 36 V 48 V 56 V 82% 80% 75 V 78% 76% 74% 72% 70% 1.20 3.00 6.00 9.00 12.00 Output Current (A) Thermal Derating Curve Vin=48 V Vin=56 V With maximum junction temperature of semiconductors derated to 120 degree C 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 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 2010 Ripple and Noise Waveform 48 Vdc input, 12.0 Vdc/12 A output Note: Ripple and noise at full load, 0-20 MHz BW, Ta=25 deg C, with a 1uF ceramic cap and a 10 uF Tantalum cap at output. Transient Response Waveforms Vout=12.0 V, 50%-25% Load Transient Vout=12.0 V, 25%-50% Load Transient Note: Transient Response at Vin=48 V, di/dt=0.1 A/uS, external 10 uF tantalum Cap and 1uF 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 5 ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 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 GND pin. The Trim Up resistor should be connected between the Trim pin and the Vout pin. Only one of the resistors should be used for any given application. Vout Rtrimdown = Rtrimup = 511 − 10 .22[kΩ ] delta Module Trim GND (100 + delta) ⋅ Vo ⋅ 5.11 − 626 − 10.22[kΩ ] 1.225 ⋅ delta Rtrimdown Vout Module Trim Rtrimup GND Note: delta = (Vo _ req − Vo ) × 100 [% ] Vo 400 5000 360 4500 Trim resistor value,Rtrim_up(KOhm) Trim resistor value Rtrim_down(KOhm) Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=12.000 V 320 280 240 200 160 120 80 40 0 4000 3500 3000 2500 2000 1500 1000 500 9.6 9.84 10.08 10.32 10.56 10.8 11.04 11.28 11.52 11.76 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 6 ISOLATED DC/DC CONVERTERS 48 Vdc Input 12 Vdc /12 A Output Sep. 24, 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+ On/Off 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 12 Vdc /12 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Sep. 24, 2010 Revision History Date Revision 2007-06-29 PA 2009-06-18 B Changes Detail Approval First release. HF Fan 1. Add 100ms transient and input/output pin to heatsink voltage. 2. Change mechanical outline. 2010-09-24 C HF Fan Add efficiency data and TD chart in 56Vin condition. 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. 092410 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