ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output 0RLC-25T Series RoHS Compliant Rev.A • Fixed Frequency (230 kHz) • Remote On/Off • Output Over Voltage Shut Down • Output Voltage Trim • Isolated • Input Under Voltage Lockout • High Efficiency • SCP/OCP • High Power Density • Over Temperature Protection • Low Cost • Remote On/Off Logic (Option) • Safety Approval to UL60950-1 (Pending) Description The 0RLC-25T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 30 W of output power. These units are designed to be high efficient and very low cost. Features include remote on/off, over current protection, and under voltage lockout. These converters are provided in an industry standard package. Part Selection Output Voltage 3.3 Vdc 5.0 Vdc 12.0 Vdc 15.0 Vdc 24.0 Vdc Input Voltage 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc Max. Output Current 7A 5A 2.5 A 2.0 A 1.25 A Max. Output Power 23 W 25 W 30 W 30 W 30 W Typical Efficiency 88% 90% 90% 90% 91% Model Number Active High 0RLC-25T033 0RLC-25T050 0RLC-25T120 0RLC-25T150 0RLC-25T240 Model Number Active Low 0RLC-25T03L 0RLC-25T05L 0RLC-25T12L 0RLC-25T15L 0RLC-25T24L 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) Remote On/Off Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 °C -55 °C Typ - Max 80 V 12 V 85 °C 125 °C Notes 100 V for 100 mS Max Min 36 V - Typ 25 mA 3 mA Max 75 V 1.1 A 40 mA 10 mA Notes - 10 mA 20 mA - 40 mA 60 mA With simulated source impedance of 10 uH, 5 Hz to 20 MHz. And use a 100 uF/ 100 V electrolytic capacitor with ESR=1 ohm max, at 200 kHz. 31 V 30 V 0.012 A s 34 V 33 V Input Specifications Parameter Input Voltage Input Current Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (rms) Input Reflected Ripple Current (pk-pk) 2 I t Inrush Current Transient Turn-on Input Voltage Turn-off Input Voltage 2 2 0.024 A s 36 V 35 V 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 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Output Specifications Parameter Output Voltage Set Point Min Typ Max VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V 3.234 V 4.900 V 11.76 V 14.70 V 23.52 V 3.3 V 5.0 V 12.0 V 15.0 V 24.0 V 3.366 V 5.100 V 12.240 V 15.300 V 24.480 V VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V - ±1 mV ±2 mV ±5 mV ±8 mV ±10 mV ±3 mV ±5 mV ±10 mV ±15 mV ±20 mV VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Temperature Regulation (-40 °C to +85 °C) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Ripple and Noise (rms) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Ripple and Noise (pk-pk) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Output Current VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Current Limit Threshold VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Short Circuit Surge Transient - ±2 mV ±4 mV ±9 mV ±10 mV ±15 mV ±5 mV ±8 mV ±18 mV ±20 mV ±30 mV - 30 mV 40 mV 100 mV 120 mV 150 mV 50 mV 70 mV 170 mV 200 mV 240 mV - 10 mV 10 mV 10 mV 15 mV 20 mV 20 mV 20 mV 20 mV 30 mV 40 mV - 40 mV 40 mV 40 mV 80 mV 85 mV 75 mV 75 mV 75 mV 120 mV 150 mV 0A 0A 0A 0A 0A - 7.0 A 5.0 A 2.5 A 2.0 A 1.25 A 7.7 A 5.5 A 3.0 A 2.2 A 1.5 A - 2 0.5 A s 12.0 A 8.0 A 4.2 A 3.4 A 2.2 A 2 1A s - 10 mS 0% 25 mS 5% 0 uF 0 uF 0 uF 0 uF 0 uF - 3300 uF 2200 uF 330 uF 330 uF 330 uF Notes Test condition: Vin=48 V, IO=50% full load at the output. Line Regulation Load Regulation Turn on Time Overshoot at Turn On Output Capacitance VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Test condition of the output ripple and noise: 0-20 MHz BW, with a 1 µF ceramic capacitor and a 220 uF /35 V at the output. 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 - 24 Vdc/7 A - 1.25 A Output Output Specifications (continued) Parameter Min Typ Max 75 mV 150 uS 75 mV 150 uS 100 mV 150 uS 100 mV 150 uS 150 mV 150 uS 150 mV 150 uS 100 mV 200 uS 100 mV 200 uS 150 mV 300 uS 150 mV 300 uS 100 mV 200 uS 100 mV 200 uS 150 mV 200 uS 150 mV 200 uS 200 mV 200 uS 200 mV 200 uS 200 mV 300 uS 200 mV 300 uS 300 mV 500 uS 300 mV 500 uS Notes Transient Response 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time - Vo=3.3 V Vo=5.0 V Vo=12.0 V Vo=15.0 V Vo=24.0 V Test condition of the transient response: di/dt=0.1 A/us, Vin=48 V, with a 220 uF/35 V electrolytic capacitor at the output. Note: All specifications are typical at nominal input, full load at 25°C unless noted. General Specifications Parameter Min Typ Max 85% 87% 87% 87% 86% 200 kHz 90% VO 1500 V 90% - 88% 90% 90% 90% 89% 230 kHz 1500 pF 110 °C 260 kHz 110% VO 110% - 3.9 V 5.7 V 13.6 V 18.0 V 28.8 V - 5.0 V 7.0 V 14.2 V 22.5 V 36.0 V Notes Efficiency VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Switching Frequency Output Trim Range I/O Isolation Voltage Isolation Capacitance Output Voltage Trim Range Over Temperature Protection Over Voltage Protection VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V MTBF Measured at Vin=48 V, IO=Io, max Test condition of Over Voltage Protection: Vin=48 V, Io=100% load at 25 °C ambient. Calculated Per Bell Core SR-332 (IO = 80% load; Vin=48 V; Vo=3.3 V; Ta = 25 °C) 2,602,427 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - 2.0 x 1.0 x 0.438 50.8 x 25.4 x 11.14 20 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 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Control Specifications Parameter Min Typ Max -0.3 V - 0.8 V 3.5 V - 12 V -0.3 V - 0.8 V 3.5 V - 12 V 0.3 mA - 0.75 mA Notes Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High Current Sink The remote On/Off pin open, Unit On. 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 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 Rtrim_down A = −B Vnom − Vadj Module Trim GND Vout Rtrim _ up = C −D Vadj − Vnom Module Trim Rtrim_up GND Vnom A B C D 24.0 272.305 15.664 31.634 3.010 15.0 92.125 9.360 18.400 2.000 12.0 53.320 9.260 14.025 3.650 5.0 19.300 15.120 6.350 10.000 3.3 21.711 40.610 13.032 30.100 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 - 24 Vdc/7 A - 1.25 A Output Efficiency Data 90% 85% 75% EFFICIENCY EFFICIENCY 80% 36V 48V 75V 70% 65% 60% 55% 50% 0.7A 1.75A 3.5A 5.25A 7A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.5A 36 48 75 1.25A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 36 48 75 0.625A 1.25A 3.75A 5A 0RLC-25T050 EFFICIENCY EFFICIENCY 0RLC-25T033 0.25A 2.5A OUTPUT CURRENT (A) OUTPUT CURRENT (A) 1.875A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 36 48 75 0.2A 2.5A 0.5A 1.0A 1.5A 2.0A OUTPUT CURRENT (A) OUTPUT CURRENT (A) 0RLC-25T150 EFFICIENCY 0RLC-25T120 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.125A 36 48 75 0.3215A 0.625A 0.9375A 1.25A OUTPUT CURRENT (A) 0RLC-25T240 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 - 24 Vdc/7 A - 1.25 A Output Thermal Derating Curves 0RLC-25T033 0RLC-25T050 0RLC-25T120 0RLC-25T150 0RLC-25T240 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 - 24 Vdc/7 A - 1.25 A Output Ripple and Noise Waveforms Ripple and noise at full load, 3.3 Vdc/7 A output Ripple and noise at full load, 12 Vdc/2.5 A output Ripple and noise at full load, 5.0 Vdc/5 A output Ripple and noise at full load, 15 Vdc/2 A output Ripple and noise at full load, 24 Vdc/1.25 A output Note: Ripple and noise at 48 Vdc input, with a 0.47 uF ceramic cap 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 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Transient Response Waveforms Transients 25% to 50% load 3.3 Vdc output Transients 50% to 75% load 3.3 Vdc output Transients 25% to 50% load 5.0 Vdc output Transients 50% to 75% load 5.0 Vdc output Transients 25% to 50% load 12 Vdc output Transients 50% to 75% load 12 Vdc output 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 - 24 Vdc/7 A - 1.25 A Output Transient Response Waveforms (continued) Transients 25% to 50% load 15 Vdc output Transients 50% to 75% load 15 Vdc output Transients 25% to 50% load 24 Vdc output Transients 50% to 75% load 24 Vdc output Note: Transient response at 48 Vdc input, di/dt=0.1 A/uS, with external 220 uF electrolytic cap and 0.47 uF ceramic cap at the 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output Mechanical Outline Pin Connections Pin Function 1 2 3 4 5 6 Vin+ VinCNT Vo+ VoTrim 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. 030207 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