ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 0RLC-10U05x 5 Vdc/2 A Output RoHS Compliant PRELIMINARY Rev.C • Isolated • Remote On/Off • Fixed Frequency • Input Under/Over Voltage Lockout • High Efficiency • Output Over-Voltage Shut Down • High Power Density • SCP/OCP • Output Voltage Trim • Excellent Thermal Performance • Low Cost • Over Temperature Protection • Pre-Bias Start Up • Basic Insulation Description The 0RLC-10U05x is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit provides up to 10 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and low cost. The converter is provided in a 1"x2" package. Part Selection Output Voltage 5 Vdc Input Voltage 18 Vdc - 75 Vdc Max. Output Current 2A Max. Output Power 10 W Typical Efficiency 83% Model Number Active High 0RLC-10U050 Model Number Active Low 0RLC-10U05L Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. 2. 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) Min -0.3 V Typ - Max 80 V I/O Isolation Voltage Notes - - 1500 V Ambient Temperature -40 °C - 85 °C Storage Temperature -55 °C - 125 °C Input Specifications Parameter Input Voltage Min 18 V Typ - Max 75 V Input Current - - 0.8 A Input Current (no load) - - 50 mA Input Reflected Ripple Current (pk-pk) - - 30 mA Turn-on Input Voltage - - 18 V Turn-off Input Voltage 16 V - - Notes 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. 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 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 5 Vdc/2 A Output Output Specifications Parameter Min Typ Max 4.925 V 5.0 V 5.075 V Line Regulation - - 0.5%Vo Load Regulation - - 1%Vo Temperature Regulation (-40 °C to +85 °C) - - 0.02%Vo/C Ripple and Noise (pk-pk) - - 60 mV 0A - 2A 2.3 A - 3.5 A - - 50 mS - - 30 mS Vinnom, Ionom, resistive load - - 30 mS Vinnom, Ionom, capacitive load 0 uF - 1000 uF Output Voltage Set Point Output Current Current Limit Threshold Turn on Time Rise Time Output Capacitance Notes Vin=48 V, IO=50% full load 0-20 MHz BW, with a 1uF ceramic cap and a 10 uF Tantalum cap at output Transient Response 50% ~ 100% Max Load Overshoot - - 200 mV - - 100 uS Vo=5 V Settling Time di/dt=0.1 A/us, Vin=48 V, with a 10 tantalum cap and a 1uF ceramic cap at the output. Note: All specifications are typical at nominal input, full load at 25°C unless noted. General Specifications Parameter Min Typ Max 80% 83% - Switching Frequency 270 kHz 300 kHz 330 kHz Isolation Capacitance - 1500 pF - 90% - 110% - 125 °C - Efficiency Output Voltage Trim Range Over Temperature Protection MTBF Notes Measured at Vin=48 V, full load Calculated Per Bell Core SR-332 (IO = 80% IO max; Vin=48 V; Vo=5 V; Ta = 25 °C) TBD Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.0 x 1.0 x 0.475 50.8 x 25.4 x 12.05 - 12 g - 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 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 5 Vdc/2 A Output Control Specifications Parameter Min Typ Max Notes Remote On/Off Signal Low (Unit On) Active Low Signal High (Unit Off) Signal Low (Unit Off) Active High Signal High (Unit On) Signal High (Unit On) -0.3 V - 0.8 V 2.4 V - 18 V -0.3 V - 0.8 V 2.4 V - 18 V 0 mA - 0.75 mA The remote on/off pin open, Unit Off. The remote on/off pin open, Unit On. Output Trim Equations Equations for calculating the trim resistor (in kohm) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vo) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. Vout Rtrim_down := 6.25 ( Vo − Vadj_down) Rtrim-down − 2.5 Module Trim GND Rtrim_up := 6.25 Vout Vadj_up − Vo Module Trim Rtrim-up GND Output voltage Vo=5.01 V Efficiency Data Efficiency Efficiency Curve 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 0.50 18 V 24 V 48 V 75 V 1.00 1.50 2.00 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 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 5 Vdc/2 A Output Thermal Derating Curve Vin=48 V, with maximum junction temperature of semiconductors derated to 120 degree C. Ripple and Noise Waveform 48 Vdc input, 5.0 Vdc/2 A output Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum cap at output, Ta=25 deg C. Transient Response Waveform Vo= 5V 50%-100%-50% Load Transients at Vin=48 V@Ta=25℃ Vo= 5V 100%-50% Load Transients at Vin=48 V@Ta=25℃ 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 18 Vdc - 75 Vdc Input 5 Vdc/2 A Output Mechanical Outline Pin Connections Pin Function Pin Size 1 Vin+ 0.040’’ 2 Vin- 0.040’’ 3 On/Off 0.040’’ 4 V o+ 0.040’’ 5 Trim 0.040’’ 6 Vo- 0.040’’ RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2008 Bel Fuse Inc. Specifications subject to change without notice. 012508 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