NON-ISOLATED DC/DC CONVERTERS 9.0 Vdc - 18 Vdc Input xRAH-01KX50 15 Vdc/0.8 A Output RoHS Compliant Rev.A • Non-Isolated • Low Profile Package • High Efficiency • Remote On/Off • Fixed Frequency (500 kHz) • Active Low Description The Bel xRAH-01KX50 is part of the low cost non-isolated dc/dc converter series. The modules use a SMD or SIP package for ease of layout and space savings. The output is closely regulated and the efficiency of 15 Vdc output module is typically 87% at full load. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Part Number Surface Mount Part Number Vertical Mount 15 V 9 V - 18 V 0.8 A 12 W 87% SRAH-01KX50 VRAH-01KX50 Notes: 1. Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel Packaging”, and “G” for “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 Min Typ Max Input Voltage (continuous) Parameter -0.3 V - 20 V Notes Remote On/Off (Active Low) -0.3 V - 20 V Ambient Temperature -40 °C - 85 °C Storage Temperature -40 °C - 125 °C Input Specifications Parameter Input Voltage Min Typ Max Notes 9V 12 V 18 V Input Current (no load) - 30 mA 45 mA Input Current (full load) - - 2.6 A 18 mA 25 mA Remoted Off Input Current Input Reflected Ripple Current (pk-pk) - 75 mA 110 mA Input Reflected Ripple Current (rms) - 20 mA 30 mA I t Inrush Current Transient - 0.003 A s 0.01 A s Turn-on Voltage Threshold 8.0 V 8.5 V 8.8 V Turn-off Voltage Threshold 7.2 V 7.6 V 8.2 V 2 2 With simulated source impedance of 500 nH, 5 Hz to 20 MHz; Use one 100 uF/20 V tantalum capacitor at the input. 2 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 9.0 Vdc - 18 Vdc Input 15 Vdc/0.8 A Output Output Specifications Parameter Output Voltage Set Point Min 14.7 V Typ 15.0 V Max 15.3 V Line Regulation - 50 mV 75 mV Load Regulation Regulation Over Temperature (-40°C to +85 °C) Output Current - 20 mV 30 mV - 50 mV 80 mV 0.03 A - 0.8 A Output DC Current Limit 1A - 1.5 A Ripple and Noise (rms) - 35 mV 50 mV Ripple and Noise (pk-pk) - 100 mV 150 mV Turn On Time - 20 mS 40 mS Overshoot at Turn on - 0% 5% 0 uF - 100 uF Output Capacitance Notes Vin=12 V, lout=full load BW = 0-20 MHz; with two 10 uF ceramic capacitors at the output Transient Response 50% ~ 75% Max Load Overshoot - 300 mV 400 mV Settling Time - 150 mS 200 mS 75% ~ 50% Max Load Overshoot - 300 mV 400 mV Settling Time - 150 mS di/dt = 0.5 A/ uS; Vin = 12 V; and with two 10 uF ceramic capacitors at the output 200 mS Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. General Specifications Parameter Min 85% Typ 87% Max - 450 kHz 500 kHz 550 kHz Efficiency Switching Frequency MTBF Measured at Vin=12 V, full load Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 °C) TBD Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight Notes 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 5g - Note: All specifications are typical at 25°C unless otherwise stated. Control Specifications Parameter Min Typ Max Signal Low (Unit On) -0.3 V - 0.4 V Signal High (Unit Off) 2.8 V - Vin Notes Remote On/Off xRAH-01KX50 Remote On/Off pin open, unit on. 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 9.0 Vdc - 18 Vdc Input 15 Vdc/0.8 A Output Efficiency Data 100.0% Efficiency 80.0% 60.0% 9V 40.0% 12V 18V 20.0% 0.0% 0.080 0.200 0.400 0.600 0.800 Output current (A) Thermal Derating Curve 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 9.0 Vdc - 18 Vdc Input 15 Vdc/0.8 A Output Ripple and Noise Waveforms Ripple and noise at no load Ripple and noise at full load Note: Ripple and noise at 12 Vdc input, 15 Vdc output, with two 10 uF ceramic capacitors at the output, Ta=25 deg C. Transient Response Waveforms 50% to 75% load at 15 Vdc output 75% to 50% load 15 Vdc output Note: Transient response at 12 V input, di/dt=0.5 A/uS, with two 10 uF ceramic capacitors 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 9.0 Vdc - 18 Vdc Input 15 Vdc/0.8 A Output Mechanical Outline SRAH-01KX50 Pin Connections bel Pin Function 1 Remote On/Off 2 Vin 3 Ground 4 Vout 5 N/A 6 N/A 7 N/A Pin Connections VRAH-01KX50 bel bel Pin Function 1 Remote On/Off 2 Vin 3 Ground 4 Vout 5 N/A 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 ºC. ©2007 Bel Fuse Inc. Specifications subject to change without notice. 011007 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