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| NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output XRAH-01FXX0 Series * * * * Non-Isolated Fixed Frequency (550 kHz) High Efficiency Low Profile Package RoHS Compliant * * * Trim Function (option) Allows Burst Mode Operation at Low Load Currents UL60950 Recognized (UL/cUL) Description The Bel XRAH-01FXX0 is part of the low cost non-isolated dc/dc converter series. The modules use a surface mount package or vertical package for ease of layout and space savings. The output is closely regulated and the efficiency of 12 Vdc output module is typically 88% at full load. Typical features include burst mode operation at light load and trim function (option). Part Selection Output Voltage 12 Vdc 15 Vdc Input Voltage 3.0 Vdc - 5.5 Vdc 3.0 Vdc - 5.5 Vdc Max. Output Current 0.8 A 0.6 A Max. Output Power 9.6 W 9.0 W Typical Efficiency 88% 88% Part Number Surface Mount SRAH-01FX20 SRAH-01FX50 Part Number Vertical Mount VRAH-01FX20 VRAH-01FX50 Note: Add "0" suffix at the end of the model number to indicate "Tube Packaging", and "R" for "Reel Packaging", and "G" for "Tray Packaging". Absolute Maximum Ratings Parameter Input Voltage (continuous) Ambient Temperature Storage Temperature Min 2.8 V -40 C -40 C Typ Max 6V 85 C 125 C Notes Input Specifications Parameter Input Voltage Input Current (full load) VO=12 V VO=15 V Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold 2 Min 3V - Typ 100 mA 30 mA 0.02 A s 2.8 V 2 Max 5.5 V 4.3 A 4.0 A 150 mA 60 mA 0.05 A s 2.9 V 2 Notes With simulated source impedance of 500 nH, 5 Hz to 20 MHz; Use 270 uF/16 V Oscon capacitor with ESR = 0.018 ohm max. at 100 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 NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output Output Specifications Parameter Output Voltage Set Point VO=12 V VO=15 V Line Regulation VO=12 V VO=15 V Load Regulation VO=12 V VO=15 V Regulation Over Temperature (-40 C to +85 C) VO=12 V VO=15 V Output Current VO=12 V VO=15 V Ripple and Noise (rms) VO=12 V; IO=0 A VO=15 V; IO=0 A VO=12 V; IO=0.8 A VO=15 V; IO=0.6 A Ripple and Noise (pk-pk) VO=12 V; IO=0 A VO=15 V; IO=0 A VO=12 V; IO=0.8 A VO=15 V; IO=0.6 A Rise Time Overshoot at Turn on Output Capacitance 33 uF 20 mV 20 mV 60 mV 80 mV 5 mS 0% 40 mV 40 mV 100 mV 120 mV 5% 330 uF The min output capacitance is 33 uF Tantalum capacitor at the output 5 mV 5 mV 20 mV 30 mV 10 mV 10 mV 40 mV 50 mV Test conditions: BW = 0-20 MHz; 1uF ceramic cap and 33 uF Tantalum capacitor at the output. 0A 0A 0.8 A 0.6 A 60 mV 75 mV 120 mV 150 mV 20 mV 20 mV 40 mV 40 mV 11.580 V 14.475 V 12 V 15 V 12.420 V 15.525 V Min Typ Max Notes Test condition: Vin=5 V, lout=full load - 45 mV 60 mV 80 mV 100 mV Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time All Outputs 130 mV 100 uS 130 mV 100 uS 200 mV 200 uS 200 mV 200 uS di/dt = 0.1 A/uS; Vin = 5 V; and with 33 uF Tantalum capacitor 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 NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output General Specifications Parameter Efficiency VO=12 V VO=15 V Switching Frequency Output Trim Range MTBF Dimensions (surface mount) Inches (L x W x H) Millimeters (L x W x H) Dimensions (vertical) Inches (L x W x H) Millimeters (L x W x H) Weight 84% 84% 500 kHz 90% VO 88% 88% 550 kHz 13,684,605 hours 650 kHz 110% VO Calculated Per Bell Core SR-332 (Vin= 5 V; Vo=12 V; IO = 0.64 A; Ta = 25 C) Min Typ Max Notes Measured at Vin=5 V, full load 0.78 x 0.7 x 0.32 19.81 x 17.78 x 8.13 0.7 x 0.308 x 0.65 17.78 x 7.82 x 16.51 5.2 g - Note: All specifications are typical at 25 C unless otherwise stated. Output Trim Equations Equations for calculating the trim resistor (in k) 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. Rtrim- down = A -B Vnom - Vadj Vout Rtrim-down Module Trim GND Rtrim- up = Vadj C -D - Vnom Vout Module Trim Rtrim-up GND Vnom 12 15.055 A 164.640 209.542 B 21.850 20.600 C 11.760 11.760 D 7.150 5.900 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output Efficiency Data Efficiency Curve 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 0.08 0.20 0.40 0.60 0.80 Output Current (A) Efficiency Curve 95.0% Efficiency 3.0 V 5.0 V 5.5 V 90.0% 85.0% 80.0% 75.0% 70.0% 0.06 0.15 0.30 0.45 0.60 Output Current (A) Efficiency 3.0 V 5.0 V 5.5 V xRAH-01FX20 xRAH-01FX50 Thermal Derating Curves xRAH-01FX20 xRAH-01FX50 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output Ripple and Noise Waveforms Ripple and noise at full load, Vin=5 V, Vo=12 V Ripple and noise at no load, Vin=5 V, Vo=12 V Ripple and noise at full load, Vin=5 V, Vo=15 V Ripple and noise at no load, Vin=5 V, Vo=15 V Note: Ripple and noise tested with 1 uF ceramic capacitor and 33 uF tantalum 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 NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output Transient Response Waveforms 50% to 100% load transient at Vin=5 V, Vo=12 V 100% to 50% load transient at Vin=5 V , Vo=12 V 50% to 100% load transient at Vin=5 V, Vo=15 V 100% to 50% load transient at Vin=5 V , Vo=15 V Note: Transient response tested at di/dt=0.1 A/uS, with an external 33 uF tantalum load capacitor 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 NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output Mechanical Outline SRAH-01FXx0 Pin Connections bel Pin 1 2 3 4 5 6 7 Function N/A Vin Ground Vout Trim N/A N/A VRAH-01FXx0 Pin Connections bel bel Pin 1 2 3 4 5 Function N/A Vin Ground Vout Trim RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240 C. (c)2006 Bel Fuse Inc. Specifications subject to change without notice. 032806 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST 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 EUROPE 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 |
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