ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 2010 0RCB-60T03C Rev.B RoHS Compliant File Rev.A Features • Isolated • Output Over-Voltage Shutdown • High Efficiency • OCP/SCP • High Power Density • Over Temperature Protection • Fixed Frequency (300 kHz) • Remote On/Off • Low Cost • Output Voltage Trim • Input Under-Voltage Lockout • Positive/Negative Remote Sense • Pre-Bias Start Up • Basic Insulation • UL 60950-1, 2 Edition • CSA C22.2 , 2nd Edition nd Applications • Networking • Computers and peripherals • Telecommunications Description The 0RCB-60T03C is isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 49.5 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 36 Vdc - 75 Vdc Max. Output Current 15 A Max. Output Power 49.5 W Typical Efficiency 90% Model Number Active Low 0RCB-60T03C Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R CB – 60 T 03 C 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 3.3V 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 3.3 Vdc /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 2010 Absolute Maximum Ratings Parameter Min Typ Max Unit Input Voltage (continuous) -0.3 - 80 V Remote On/Off -0.3 - 18 V I/O Isolation Voltage Notes - - 1500 V Input to Each Output Resistance 10 - - M ohm 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 Current (full load) - - 1.8 A Input Current (no load) - - 80 mA Input Reflected Ripple Current (pk-pk) - - 15 mA Input Fuse (not internally) - - 5.0 A I t Inrush Current Transient - - 0.1 As Turn-on Voltage Threshold 32 - 35 V Turn-off Voltage Threshold 28.5 - 31.7 V 2 Notes Tested with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 47 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 (continued) Parameter Min Typ Max Unit Output Voltage Range 3.201 3.3 3.399 V Output Voltage Trim Range 2.97 - 3.63 V Output Over-Voltage Clamp Non-Latching 3.69 - 4.62 V Output Current - - 15 A 15.2 - 26 A External Admissible Capacitive Load 0 - 10000 uF Ripple and Noise (pk-pk) - - 130 mV Turn on Time - - 220 mS Rise Time - - 15 mS Vpk-pk - - 230 mV Settling Time - - 200 uS Current Limit Threshold Notes Over all line, load & temperature conditions. Vin=72 V, max load on output, 20 MHz BW, 10uF tantalum and 1uF ceramic capacitor. Transient Response 50% ~ 75% ~ 50% Max Load di/dt=0.1A/us, Vin=48Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at the output.cap at the output. Note: All specifications are typical at nominal input, full load 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 2 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 2010 General Specifications Efficiency Parameter Min 87 Typ 90 Max - Unit % Switching Frequency 270 300 330 kHz Isolation capacitance - 3900 - pF Remote Sense Compensation - - 10 % Over Temperature Protection - 125 - °C Weight - 26 - g MTBF Notes Measured with full load at all conditions. The total voltage increased by trim and remote sense should not exceed 10%Vo. 2,370,000 hours 2.30 x 0.896 x 0.374 58.42 x 22.76 x 9.50 - Calculated Per Bell Core SR-332 (Vin=48 V, Vo=3.3 V, Io=12 A, 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) Active Low Min -0.3 Typ - Max 0.8 Unit V 2.4 - 18 V 0 - 1 mA Current Sink Notes The remote on/off pin open, Unit off. Efficiency Data Efficient Efficient Curve 92% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 38.4 V 48 V 60 V 72 V 5 10 15 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 3 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 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 (+). Only one of the resistors should be used for any given application. Rtrimdown = Sense(+) 511 − 10.22[kΩ] delta Module Trim Rtrimdown Rtrimup = ( Sense(-) (100 + delta ) ⋅ Vo ⋅ 5.11 511 − − 10.22)[kΩ] 1.225 ⋅ delta delta Sense(+) Rtrimup Note: delta = Module (Vo _ req − Vo ) × 100 [% ] Trim Sense(-) Vo Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=3.305 V Fundamental Circuit Diagram 1 8 4 2 Control Control 3 7 Choke Capacitor Isolated Feedback 5 6 Resistor 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 /15 A Output, 1/8 Brick Converter Nov. 30, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Thermal Derating Curves Vin=48V, 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 5 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Nov. 30, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Thermal Derating Curves (continued) Temperature reference points on top side Temperature reference points on bottom side 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 /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 2010 Safety Material flammability: UL94V-0 Electromagnetic Compatibility EMC 1. Electric field IEC801-3(1984), IEC1000-4-3 2. Fast transient/burst IEC801-4(1988), IEC1000-4-4 Input RFI level conducted and radiated (subject to test by customer) Compliance to EN55022 class A (both q.peak and average) with the following inductive and capacitive filter C4 +Vin T1 C1 C2 C3 Conv.positive input Conv.negative input -Vin T1 C5 C1=3.3 uF /100 V; C2=C3= 47 uF/100 V; C4=C5=1000 pF/250 Volt; T1=3 mH. Level [dB? ] 80 60 x + x x + 40 + x + x + x + 20 0 -20 150k x x MES + + MES MES MES 300k 500k 05-1012-12L_fin 05-1012-12L_fin 05-1012-12L_pre 05-1012-12L_pre 1M 2M 3M Frequency [Hz] 4M 6M 10M 30M QP AV PK AV 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 /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 2010 Transient Response Waveforms Note: Dynamic load transient at Vin = 48 V, Ta = 25 °C, Io=(50%~75%~50%)Ionom, di/dt=0.1 A/uS. Ripple and Noise Waveforms C1=10 uF tantalum, C2=1 uF ceramic; R=50 ohm; C=220 nF . Vin =38.4 V and Iout = 15 A Vin =48 V and Iout = 15 A Vin =72 V and Iout = 15 A 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 /15 A Output, 1/8 Brick Converter Nov. 30, 2010 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’’ Note: The module doesn't guarantee at least 0.7mm as clearance Notes: 1. Pin 5 must be connected to Vout-. distance on bottom side. This issue should be considered if 2. Leave Pin 6 open for nominal voltage. any copper traces are on the top side of the user's board. 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 9 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 30, 2010 Revision History Date Revision 2009-11-26 A 2010-11-30 B Changes Detail Approval First Release XF Jiang nd Add UL 60950-1, 2 Edition and CSA C22.2, 2 page. nd Edition in the first 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. 113010 10 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