NON-ISOLATED DC/DC CONVERTER 4.5 Vdc - 32 Vdc Input xRAH-01Hxx0 1.2 Vdc - 5.0 Vdc/1 A Output RoHS Compliant Rev.A • Non-Isolated • Remote On/Off • Trim Function • OCP/SCP • Low Profile Package (7.82 mm) • Under-Voltage Lockout (UVLO) • UL60950-1 Recognized (UL/cUL) Description The Bel xRAH-01Hxx0 series are part of the low cost non-isolated dc/dc converter series. These modules use a SMD or vertical mount package for ease of layout and space savings. The output is closely regulated and the efficiency of 5 Vdc output is typically 90% at full load. Typical features include remote on/off, input under voltage lockout, over current protection and short circuit protection. Part Selection Output Voltage 5.0 V Input Voltage 8.0 V - 32 V Max. Output Current 1A Max. Output Power 5.0 W Typical Efficiency 90% Part Number Surface Mount SRAH-01H500 Part Number Vertical Mount VRAH-01H500 3.3 V 4.5 V - 32 V 1A 3.3 W 86% SRAH-01H330 VRAH-01H330 2.5 V 4.5 V - 32 V 1A 2.5 W 83% SRAH-01H250 VRAH-01H250 1.8 V 4.5 V - 32 V 1A 1.8 W 79% SRAH-01H180 VRAH-01H180 1.5 V 4.5 V - 32 V 1A 1.5 W 76% SRAH-01H150 VRAH-01H150 1.2 V 4.5 V - 32 V 1A 1.2 W 73% SRAH-01H120 VRAH-01H120 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 Parameter Input Voltage (continuous) Min -0.3 V Typ - Max 34 V Output Enable Terminal Voltage -0.3 V - 12 V Ambient Temperature -40 °C - 85 °C Storage Temperature -40 °C - 125 °C Notes Input Specifications Parameter Input Voltage VO=5.0 V VO=1.2 V-3.3 V Input Current (no load) Input Current (full load) VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Remote Off Input Current Min Typ Max 8.0 V 4.5 V - 20 V 20 V 5 mA 32 V 32 V 8 mA - 2 mA 0.30 A 0.20 A 0.16 A 0.12 A 0.11 A 0.09 A 5 mA Notes 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Input Specifications (continued) Parameter Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) 2 I t Inrush Current Transient Turn on Voltage Threshold VO=5.0 V VO=1.2 V-3.3 V Turn off Voltage Threshold VO=5.0 V VO=1.2 V-3.3 V Min Typ Max - 300 mA 420 mA - 100 mA 160 mA - 0.02 A s 0.1 A s - 5.0 V 4.1 V 7.0 V 4.5 V - 3.6 V 3.3 V 5.0 V 4.0 V 2 Notes Tested with simulated source impedance of 500nH, 5 Hz to 20 MHz and one 100 uF/50 V electrolytic capacitor and a 3.3 uF/50 V ceramic capacitor at the input 2 Note: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point Min Typ Max VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V 4.90 V 3.234 V 2.450 V 1.764 V 1.470 V 1.176 V 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 5.10 V 3.366 V 2.550 V 1.836 V 1.530 V 1.224 V VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V - ±5 mV ±3 mV ±2 mV ±2 mV ±1 mV ±1 mV ±10 mV ±6 mV ±5 mV ±4 mV ±3 mV ±2 mV VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V - ±5 mV ±3 mV ±2 mV ±2 mV ±1 mV ±1 mV ±10 mV ±6 mV ±5 mV ±4 mV ±3 mV ±2 mV - ±10 mV ±20 mV Output Current 0A - 1A Current Limit Threshold 2A - Line Regulation Load Regulation Regulation Over Temperature (-40 °C to +85 °C) Test conditions: Vin=20 V, Io=50% full load 3A 2 2 Short Circuit Surge Transient - 0.02 A s 0.1 A s Ripple and Noise (rms) - 6 mV 10 mV Ripple and Noise (pk-pk) - 60 mV 100 mV Turn on Time - 6 mS 30 mS Overshoot at Turn on - 2% 5% 0 uF - 400 uF Output Capacitance Notes Test condition: 0-20 MHz BW 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Output Specifications (continued) Parameter Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Min Typ Max Overshoot - 140 mV 170 mV Settling Time - 100 uS 130 uS - 140 mV 170 mV Settling Time - 100 uS 130 uS Overshoot - 80 mV 120 mV - 150 uS 200 uS - 80 mV 120 mV - 150 uS 200 uS Overshoot - 70 mV 110 mV Settling Time - 120 uS 160 uS - 70 mV 110 mV Settling Time - 120 uS 160 uS Overshoot - 60 mV 100 mV - 100 uS 130 uS - 60 mV 100 uS 100 mV 130 uS Overshoot Settling Time Overshoot VO=5.0 V VO=3.3 V Settling Time Overshoot 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Overshoot Settling Time VO=2.5 V VO=1.2 V - 1.8 V - Notes Test conditions: di/dt = 0.5 A/uS; Vin = 20 V Note: All specifications are typical at 20 V input, full load at 25 °C unless otherwise stated. General Specifications Parameter Min Typ Max VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V 87% 83% 80% 76% 73% 70% 90% 86% 83% 79% 76% 73% - VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V 130 kHz 270 kHz 190 kHz 150 kHz 130 kHz 100 kHz 150 kHz 290 kHz 220 kHz 170 kHz 150 kHz 120 kHz 170 kHz 310 kHz 250 kHz 190 kHz 170 kHz 140 kHz 90%Vo - 110%Vo Notes Efficiency Measured at Vin=20 V, full load Switching Frequency Output Trim Range MTBF Calculated Per Bell Core SR-332 (IO = 0.8 A, Vo=1.8 V; Vin=20 V; Ta = 25 °C) 8,040,762 hours Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight 0.78 x 0.70 x 0.32 19.81 x 17.78 x 8.13 0.70 x 0.308 x 0.65 17.78 x 7.82 x 16.51 - 5.1 g - Note: All specifications are typical at 20V 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Control Specifications Parameter Remote On/Off Min Typ Max Signal Low (Unit On) -0.3 V - 1V Signal High (Unit Off) 2.8 V - 12 V Notes 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 (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 RTrimDown RTrimUp Rtrimdown A = −B Vo − Vadj Module Trim GND Vout C = −D Vadj − Vo Module Trim Rtrimup GND Vo 5.0 3.3 2.5 1.8 1.5 1.2 A 153.56 53.80 36.70 21.70 15.20 8.70 B 85.20 21.50 21.50 21.50 21.50 21.50 C 29.20 17.20 17.20 17.20 17.20 17.20 D 48.70 X X X X X 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Efficiency Data 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% Efficiency Curve 8V 20 V 32 V Efficiency Efficiency Efficiency Curve 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 4.5 V 20 V 32 V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) Output Current (A) xRAH-01H500 xRAH-01H330 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% Efficiency Curve 4.5 V 20 V 32 V Efficiency Efficiency Efficiency Curve 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) Output Current (A) xRAH-01H250 xRAH-01H180 Efficiency Curve 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% Efficiency Curve 4.5 V 20 V 32 V Efficiency Efficiency 4.5 V 20 V 32 V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 4.5 V 20 V 32 V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) xRAH-01H150 Output Current (A) xRAH-01H120 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Thermal Derating Curve Test Condition: Derating curve is tested at nominal input voltage. 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Ripple and Noise Waveforms 20 Vdc input, 5.0 Vdc output 20 Vdc input, 3.3 Vdc output 20 Vdc input, 2.5 Vdc output 20 Vdc input, 1.8 Vdc output 20 Vdc input, 1.5 Vdc output 20 Vdc input, 1.2 Vdc output Note: Ripple and noise at max load, 0-20MHz BW, 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Transient Response Waveforms 50% to 100% load, 5.0 Vdc output 100% to 50% load, 5.0 Vdc output 50% to 100% load, 3.3 Vdc output 100% to 50% load, 3.3 Vdc output 50% to 100% load, 2.5 Vdc output 100% to 50% load, 2.5 Vdc output 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Transient Response Waveforms (continued) 50% to 100% load, 1.8 Vdc output 100% to 50% load, 1.8 Vdc output 50% to 100% load, 1.5 Vdc output 100% to 50% load, 1.5 Vdc output 50% to 100% load, 1.2 Vdc output 100% to 50% load, 1.2 Vdc output Note: Transient Response at 20 Vdc input, di/dt=0.5 A/uS, 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 CONVERTER 4.5 Vdc - 32 Vdc Input 1.2 Vdc - 5.0 Vdc/1 A Output Mechanical Outline SRAH-01Hxx0 Pin Connections bel Pin 1 2 3 4 5 6 7 Function Remote On/Off (option) Vin Ground Vout Trim (option) N/A N/A VRAH-01Hxx0 Pin Connections bel bel Pin 1 2 3 4 5 Function Remote On/Off (option) Vin Ground Vout Trim (option) 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