ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 xRCY-C2T03x RoHS Compliant Rev.D Features Isolated Output Voltage Trim High Efficiency OCP/SCP High Power Density Over Temperature Protection Fixed Frequency (300 kHz) Remote On/Off Low Cost Positive/Negative Remote Sense Input Under-Voltage Lockout Basic Insulation Output Over-Voltage Protection Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592) Applications Networking Computers and peripherals Telecommunications Description The xRCY-C2T03x is isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 99 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 3.3 Vdc Input Voltage 48 Vdc Max. Output Current 30 A Max. Output Power 99 W Typical Efficiency 93% Model Number Active High xRCY-C2T033 Model Number Active Low xRCY-C2T03L Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation x R CY – C2 T 03 x 1 2 3 4 5 6 7 1---Replace”x” with “S” to indicate SMD package, or “0” to indicate through hole package 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Input range (36-75V) 6---Output voltage 3.3V 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 48 Vdc Input 3.3 Vdc /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 Absolute Maximum Ratings Min Typ Max Unit -0.3 - 80 V Remote On/Off -0.3 - 18 V I/O Isolation Voltage 1500 - - V Ambient Temperature -40 - 85 C Storage Temperature -55 - 125 C Parameter Continuous Input 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 Input Current (full load) - - 3.8 A Input Current (no load) - 70 120 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 Note: All specifications are typical at 25 C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point Min 3.234 Typ 3.30 Max 3.366 Unit V Load Regulation - ±4 ±9 mV Line Regulation - ±8 ±16.5 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±30 ±50 mV Ripple and Noise (rms) - 10 20 mV Ripple and Noise (pk-pk) - 55 90 mV Output Current Range 0 - 30 A Output DC Current Limit 33 - 44 A Short Circuit Surge Transient - 2 4 As Turn on Time - - 25 mS Overshoot at Turn on - 0 - % 470 - 5600 uF Output Capacitance Notes Vin=48 V, Io=50%load 0-20MHz BW, with a 1µF ceramic capacitor and the minimum external Tantalum cap at output. 2 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 /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 Output Specifications (continued) Parameter Transient Response Min Typ Max Unit △V 25%~50% Overshoot - 50 100 mV of Max Load Settling Time - 150 250 uS △V 50%~25% Overshoot - 50 100 mV of Max Load Settling Time - 150 250 uS Notes di/dt=0.1 A/us, Vin=48 Vdc, with a 1µF ceramic capacitor and the minimum external Tantalum cap at output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Efficiency Parameter Min 90 Typ 93 Max - Unit % Switching Frequency 270 300 330 kHz Isolation Capacitance - 2200 - pF 90 - 110 % Remote Sense Compensation - - 10 % Over Temperature Protection - 125 - C 3.8 - 4.5 % Output Voltage Trim Range Over Voltage Protection MTBF Notes Measured at Vin=48 V, full load. Vin=48V, full load and short feedback optocoupler. Vin=48 V, full load, in hiccup Mode Calculated Per Bell Core SR-332 (Io=80%load, Ta = 25 C) TBD Hours 2.30 x 0.90 x 0.40 58.42 x 22.86 x 10.26 - 0RCY-C2T03x 2.30 x 0.90 x 0.46 58.42 x 22.86 x 11.68 - SRCY-C2T03x Dimensions Inches (L × W × H) Millimeters (L × W × H) Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - 28 - g 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 -0.7 - 0.8 V 2.4 - 18 V -0.7 - 0.8 V 2.4 - 18 V 0 - 1 mA Notes xRCY-C2T03L Remote On/Off pin is open, unit off. xRCY-C2T033 Remote On/Off pin is 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 3.3 Vdc /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 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 511 Rtrimdown 10.22 k delta Module Trim GND Rtrimup (100 delta) Vo 5.11 626 10.22 k 1 .225 delta Rtrimdown Vout Module Note: Vo _ req Vo 100 % delta Trim Rtrimup GND Vo Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=3.3 V Efficiency Data Efficiency Efficiency Curve 94% 92% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 3.00 36 V 48 V 75 V 7.50 15.00 22.50 30.00 Output Current (A) 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 /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 Thermal Derating Curve Vin=48V, with maximum junction temperature of semiconductors derated to 120 degree C Ripple and Noise Waveforms Io=0A Vin=48V Io=30A Vin=48V Note: Ripple and noise with a 1uF ceramic cap and a 10 uF Tantalum cap at 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 5 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 Transient Response Waveforms Vout=3.3V 75% to 50% Load Transients at Vin=48V Vout=3.3V 50% to 75% Load Transients at Vin=48V Note: Transient Response at di/dt=0.1A/uS, External 330uF Tantalum Cap, Ta=25deg C. 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 /30 A Output Jun. 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline 0RCY-C2T03x Pin Connections Pin Name Pin Dia 1 2 3 4 5 6 7 8 Vin+ RC VinVoutRSTrim RS+ Vout+ 0.040’’ 0.040’’ 0.040’’ 0.060’’ 0.040’’ 0.040’’ 0.040’’ 0.060’’ 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. 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 /30 A Output Jun. 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline (continued) SRCY-C2T03x Pin Connections Pin Name Pin Dia 1 2 3 4 5 6 7 8 Vin+ RC VinVoutRSTrim RS+ Vout+ 0.040’’ 0.040’’ 0.040’’ 0.060’’ 0.040’’ 0.040’’ 0.040’’ 0.060’’ Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a reflow 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 48 Vdc Input 3.3 Vdc /30 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jun. 24, 2011 Revision History Date Revision Changes Detail Approval 2011-01-12 C Change max input current (full load) from 4.5A to 3.8A in input specifications. JZ Wang 2011-06-24 D Add P/N SRCY-C2T03x with SMD package. 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. 2011 Bel Fuse Inc. Specifications subject to change without notice. 062411 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