ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs 0RXU-75TD10 RoHS Compliant Rev.A • Isolated • Low Cost • Fixed Frequency (300 kHz) • SCP/OCP • High Efficiency • Remote On/Off • High Power Density • Output Voltage Trim • Input Under- Voltage Lockout (UVLO) • Output Over-Voltage Protection (OVP) • UL60950-1 Recognized (UL/cUL) and CE Mark • Over Temperature Protection Description The 0RXU-75TD10 is an isolated dc/dc converter that operates from a nominal 48 Vdc source. It provides up to 78 W of output power with two output voltages. Features include remote on/off, output adjust, short circuit protection, over current protection, over-temperature shutdown, output over voltage protection, and input under voltage lockout. This converter is provided in a compact, though-hole package that is easy to use and provides good thermal performance. Part Selection Output Voltage Input Voltage +12 Vdc/-12 Vdc 36 Vdc - 75 Vdc Max. Output Current 5 A/1.5 A Max. Output Power 78 W Typical Efficiency 90% Model Number 0RXU-75TD10 Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. 2. Add “G” suffix at the end of the model numbers listed above to indicate “Tray Packaging”. Absolute Maximum Ratings Parameter Input Voltage Min -0.3 V Typ - Max 100 V Remote On/Off Ambient Temperature Storage Temperature Notes 100 V for 10 mS Max. -0.3 V - 30 V -40 °C - 85 °C -40 °C - 125 °C Input Specifications Parameter Input Voltage Min 36 V Typ - Max 75 V Input Current (no load) - - 200 mA Input Current (full load) - - 3A Remote Off Input Current - 10 mA 20 mA Input Reflected Ripple Current (rms) - 10 mA 30 mA Input Reflected Ripple Current (pk-pk) - 50 mA 100 mA Turn On Voltage Threshold 32 V 34 V 35 V Turn Off Voltage Threshold 30 V 31 V 33 V Notes 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 200k Hz 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 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs Output Specifications Parameter Output Voltage Set Point Min Typ Max Notes VO1=+12 V VO2=-12 V +11.76 V -11.86 V +12 V -12.1 V +12.24 V -12.34 V VO1=+12 V VO2=-12 V - - 2% VO 4% VO ΔIo1=50% Imax1; Io2=50% Imax2 ΔIo2=50% Imax2; Io1=50% Imax1 VO1=+12 V VO2=-12 V - - 1% VO 1% VO Io1=50% Imax1; Io2=50% Imax2 - - 0.02% /°C VO1=+12 V VO2=-12 V 0.06 A 0.06 A - 5A 1.5 A VO1=+12 V VO2=-12 V 6A 1.8 A - 7.5 A 2.25 A Hiccup Mode - - - Hiccup Mode - 10 mS 7 mS 20 mS 20 mS - - 5% VO1=+12 V VO2=-12 V - 25 mV 10 mV 50 mV 50 mV VO1=+12 V VO2=-12 V - 75 mV 40 mV 150 mV 150 mV 0 uF - 1,000 uF Vin=48 V, lo=50% load Load Regulation Line Regulation Regulation Over Temperature (-40 °C to +85 °C) Output Current Output Current Limit Short Circuit Protection Startup Time Power Up Remote On/Off Overshoot at Turn On Ripple and Noise (rms) Test conditions: 0-20 MHz Bandwidth, with a 1 uF ceramic capacitor at the output. Ripple and Noise (pk-pk) Output Capacitance For both VO1 and VO2 Transient Response 50% ~ 75% Max Load - Overshoot - Settling Time VO1=+12 V 75% ~ 50% Max Load 50% ~ 75% Max Load Overshoot - Settling Time - Overshoot - Settling Time VO2=-12 V 75% ~ 50% Max Load Overshoot Settling Time - - 300 mV 600 mV 150 uS 300 uS 300 mV 600 mV 150 uS 300 uS 300 mV 600 mV 150 uS 300 uS 300 mV 600 mV 150 uS 300 uS Test conditions: di/dt=0.5 A/us, Vin=48 V 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 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs General Specifications Parameter Min 84% Typ 90% Max - Switching Frequency 270k Hz 300k Hz 330k Hz I/O Isolation Voltage - 1500 V - Isolation Capacitance - 1500 pF - 90% - 110% +13.5 V -13.5 V - +15 V -15 V 130 °C +17 V -17 V - Efficiency Output Trim Range Output Over Voltage Protection VO1=+12 V VO2=-12 V Over-temperature MTBF Notes Vin = 48 V; Full Load Hiccup Mode Hiccup Mode Calculated Per Bell Core SR-332 (IO = 80% Imax; TA = 25 °C) 2,366,749 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.28 x 2.4 x 0.48 57.9 x 61.0 x 12.09 45 g - - Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. Control Specifications Parameter Remote On/Off Min Typ Max Signal Low (Unit On) -0.3 V - 1.8 V Signal High (Unit Off) 3.5 V - 12 V Notes Active Low; Remote On/Off pin open, Unit off. Output Trim Equations Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim pin and Vo1. The Trim Up resistor should be connected between the Trim pin and COM. Only one of the resistors should be used for any given application. Rtrim _ down = 99.86 − 20.5 Vnom − Vadj Vout1 Rtrim_down Module Trim COM Rtrim _ up = 26.25 − 10 Vadj − Vnom Vout1 Module Trim Rtrim_up Note: Output voltage Vo=12.012 V COM 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 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs Efficiency Data 0RXU-75TD10 module 0.950 Efficiency 0.900 0.850 Vin=36V 0.800 Vin=48V 0.750 Vin=75V 0.700 0.650 0.600 10%load 25%load 50%load 75%load 100%load Output Current Thermal Derating Curve (Vin=48 V) 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 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs Ripple and Noise Waveforms Ripple and noise at full load, 36 V input, ch1 (+)12 V/5 A output, (-)12 V/1.5 A Ripple and noise at full load, 48 V input, ch1 (+)12 V/5 A output, (-)12 V/1.5 A Ripple and noise at full load, 75 V input, ch1 (+)12 V/5 A output, (-)12 V/1.5 A Note: With a 1uF ceramic capacitor 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 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs Transient Response Waveforms Vout=(+)12 V 50%-75% Load Transients at Vin=36 V Vout=(+12) V 75%-50% Load Transients at Vin=36 V Vout=(-)12 V 50% - 75% Load Transients at Vin=36 V Vout=(-)12 V 75% -50% Load Transients at Vin=36 V Vout=(+)12 V 50%-75% Load Transients at Vin=48 V Vout=(+12) V 75%-50% Load Transients at Vin=48 V 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 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs Transient Response Waveforms (continued) Vout=(-)12 V 50% - 75% Load Transients at Vin=48 V Vout=(-)12 V 75% -50% Load Transients at Vin=48 V Vout=(+)12 V 50%-75% Load Transients at Vin=75 V Vout=(+12) V 75%-50% Load Transients at Vin=75 V Vout=(-)12 V 50% - 75% Load Transients at Vin=75 V Vout=(-)12 V 75% -50% Load Transients at Vin=75 V 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 36 Vdc - 75 Vdc Input +12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs Mechanical Outline Pin Connections Pin Function Pin Function 1 -Vin 6 COM 2 FG 7 Trim 3 REM 8 COM 4 +Vin 9 -Vo1 (-12 V) 5 +Vo1 (+12 V) 10 No Connection RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2007 Bel Fuse Inc. Specifications subject to change without notice. 030107 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