ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter 0RCB-60T03x Rev.B • • • • • • • • RoHS Compliant • • • • • • • Isolated High Efficiency High Power Density Fixed Frequency (300 kHz) Low Cost Input Under-Voltage Lockout EN60950-1 Recognized Pre-Bias Start Up File Rev.A Output Over-Voltage Shutdown OCP/SCP Over Temperature Protection Remote On/Off Output Voltage Trim Positive/Negative Remote Sense Basic Insulation Description The 0RCB-60T03x 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 High 0RCB-60T033 Model Number Active Low 0RCB-60T03L Notes: 1.Change the last character to “A” to indicate 100 Ω sense resistors internally and active low. 2. Add “G” suffix at the end of the model number to indicate Tray Packaging. 3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. Absolute Maximum Ratings Parameter Input Voltage (continuous) Remote On/Off I/O Isolation Voltage Input to Each Output Resistance Ambient Temperature Storage Temperature Min Typ Max -0.3 V -0.3 V 10M ohm -40 °C -55 °C - 80 V 18 V 1500 V 85 °C 125 °C Notes Input Specifications Parameter Input Voltage Input Current (full load) Input Current (no load) Min 36 V - Typ 48 V - Max 75 V 1.8 A 80 mA Input Reflected Ripple Current (pk-pk) - - 15 mA Input Fuse (not internally) - - 5.0 A I t Inrush Current Transient - - 0.1 A s Turn-on Voltage Threshold Turn-off Voltage Threshold 32 V 28.5 V - 35 V 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 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Output Specifications Parameter Output Voltage Range Min Typ Max 3.201 V 3.3 V 3.399 V Output Voltage Trim Range 2.97 V - 3.63 V Output Over-Voltage Clamp Non-Latching 3.69 V - 4.62 V - - 15 A 15.2 A - 26 A 0 uF - 10000 uF Ripple and Noise (pk-pk) - - 130 mV Turn on Time - - 220 mS Rise Time Transient Response - - 15 mS Vpk-pk - - 230 mV Settling Time - - 200 uS Output Current Current Limit Threshold External Admissible Capacitive Load 50% ~ 75% ~ 50% Max Load Notes Over all line, load & temperature conditions. Vin=72 V, max load on output, 20 MHz BW, 10uF tantalum and 1uF ceramic capacitor. 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 25 °C unless otherwise stated. General Specifications Parameter Min 87% Typ 90% Max - Switching Frequency 270 kHz 300 kHz 330 kHz Isolation capacitance - 3900 pF - Remote Sense Compensation - - 10% Over Temperature Protection - 125 °C - Efficiency MTBF Notes Measured with full load at all conditions. The total voltage increased by trim and remote sense should not exceed 10%Vo. Calculated Per Bell Core SR-332 (Vin=48 V, Vo=3.3 V, Io=12 A, Ta = 25 °C) 2,370,000 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.30 x 0.896 x 0.374 58.42 x 22.76 x 9.50 - 26 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 -0.3 V - 0.8 V 2.4 V - 18 V -0.3 V - 0.8 V 2.4 V - 18 V 0 mA - 1 mA Notes 0RCB-60T03L. The remote on/off pin open, Unit off. 0RCB-60T033. 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter 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 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) 0RCB-60T03x Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Thermal Derating Curves Vin=48V, with maximum junction temperature of semiconductors derated to 120 degree C. 0RCB-60T03x Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter Mechanical Outline Note: The module doesn't guarantee at least 0.7mm as clearance distance on bottom side. This issue should be considered if any copper traces are on the top side of the user's board. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc /15 A Output, 1/8 Brick Converter 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+. Fundamental Circuit Diagram 1 8 4 2 Control Control 3 7 Choke Capacitor Isolated Feedback 5 6 Resistor 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. 041910 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