NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input 5 Vdc - 12 Vdc/1A Output
xRAH-01K Series
• Non-Isolated • High Efficiency • Fixed Frequency (450kHz)
RoHS Compliant
Rev.A
• Low Profile Package • Remote On/Off • Active Low/High
• UL60950-1 Recognized (UL/cUL)
Description
The Bel xRAH-01Kxxx is a part of the low cost non-isolated dc/dc converter Power Module 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 9 Vdc output module is typically 86% at full load.
Part Selection
Output Voltage 5V 9V 12 V Input Voltage 9 V - 18 V 9 V - 18 V 9 V - 18 V Max. Output Current 1A 1A 1A Max. Output Power 5W 9W 12 W Typical Efficiency 81% 86% 87% Part Number Surface Mount SRAH-01K50x SRAH-01K90x SRAH-01KX2x Part Number Vertical Mount VRAH-01K50x VRAH-01K90x VRAH-01KX2x
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. Use "0" to replace "x" in the above part number to indicate Active High, and "L" to indicate Active Low. 3. 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 -40 °C Typ Max 24 V 24 V 85 °C 125 °C Notes
Input Specifications
Parameter Input Voltage Remote Off Input Current Input Current (no load) Input Current (full load) Vo=5 V Vo=9 V Vo=12 V Input Reflected Ripple Current (pk-pk) Vo=5 V Vo=9 V Vo=12 V Input Reflected Ripple Current (rms) Vo=5 V Vo=9 V Vo=12 V I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold
2
Min 9V 8.0 V 7.2 V
Typ 18 mA 30 mA 55 mA 75 mA 95 mA 15 mA 20 mA 30 mA 0.003 A s 8.5 V 7.6 V
2
Max 18 V 25 mA 45 mA 0.8 A 1.3 A 1.8 A 80 mA 110 mA 130 mA 25 mA 30 mA 40 mA 0.01 A s 8.8 V 8.2 V
2
Notes
With simulated source impedance of 500 nH, 5 Hz to 20 MHz; Use one 100 uF/25 V tantalum capacitor at the input.
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 5 Vdc - 12 Vdc/1A Output
Output Specifications
Parameter Output Voltage Set Point Vo=5 V Vo=9 V Vo=12 V Line Regulation Vo=5 V Vo=9 V Vo=12 V Load Regulation Vo=5 V Vo=9 V Vo=12 V Regulation Over Temperature (-40°C to +85 °C) Vo=5 V Vo=9 V Vo=12 V Output Current Output DC Current Limit Ripple and Noise (rms) Vo=5 V Vo=9 V Vo=12 V Ripple and Noise (pk-pk) Vo=5 V Vo=9 V Vo=12 V Ripple and Noise (rms) Vo=5 V Vo=9 V Vo=12 V Ripple and Noise (pk-pk) Vo=5 V Vo=9 V Vo=12 V Turn On Time Vo=5 V Vo=9 V Vo=12 V Overshoot at Turn on Output Capacitance Transient Response Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time 0 uF 20 mS 30 mS 30 mS 0% 200mV 100uS 200mV 100uS 300mV 150uS 300mV 150uS 350mV 150uS 350mV 150uS 30 mS 45 mS 45 mS 5% 47 uF 300mV 150uS 300mV 150uS 400mV 200uS 400mV 200uS 500mV 200uS 500mV 200uS 40 mV 70 mV 110 mV 70 mV 100mV 160mV 15 mV 25 mV 35 mV 25 mV 35 mV 50 mV Test conditions: BW = 0-20 MHz; with two 10 uF ceramic capacitors at the output. 10 mV 15 mV 20 mV 15 mV 20 mV 30 mV 0.005 A 1.1 A 50 mV 70 mV 90 mV 3 mV 3 mV 4 mV 80 mV 100 mV 140 mV 1A 1.8 A 5 mV 5 mV 6 mV Test conditions: BW = 0-20 MHz; with π filter (Co1=10 uF, L=0.47 uH, Co2=10 uF) at the output 15 mV 25 mV 35 mV 25 mV 45 mV 60 mV 8 mV 15 mV 20 mV 15 mV 25 mV 35 mV Min 4.90 V 8.82 V 11.76 V Typ 5V 9V 12 V Max 5.10 V 9.18 V 12.24 V Notes Test condition: Vin=12 V, lout=full load
5.0 V
9.0 V
di/dt = 0.5 A/uS; Vin = 12 V; and with two 10 uF ceramic capacitors at the output
12.0 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
NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input 5 Vdc - 12 Vdc/1A Output
General Specifications
Parameter Efficiency Vo=5 V Vo=9 V Vo=12 V Switching Frequency MTBF Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight 77% 82% 83% 400 kHz 81% 86% 87% 450 kHz 14,760,000 hours 480 kHz Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) Measured at Vin=12 V, full load Min Typ Max 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 Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) -0.3 V 2.5 V -0.3 V 2.5 V 0.4 V Vin 0.4 V Vin xRAH-01KxxL, Remote On/Off pin open, unit off. xRAH-01Kxx0, Remote On/Off pin open, unit on. Min Typ Max Notes
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 5 Vdc - 12 Vdc/1A Output
Efficiency Data
100.0% 80.0% Efficiency 60.0% 40.0% 20.0% 0.0% 0.100 0.250 0.500 0.750 1.000 Output current (A) 9V 12V 18V
x7AH-01K500
100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 0.100 0.250 0.500 0.750 1.000
9V 12V 18V
x7AH-01K900
100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 0.100 0.250 0.500 0.750 1.000
9V 12V 18V
x7AH-01KX20
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 5 Vdc - 12 Vdc/1A Output
Thermal Derating Curves
Vin=12 V, Vo=5 V
Vin=12 V, Vo=9 V
Vin=12 V, Vo=12 V
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 5 Vdc - 12 Vdc/1A Output
Ripple and Noise Waveforms
12 Vdc input, 5 Vdc output
12 Vdc input, 9 Vdc output
12 Vdc input, 12 Vdc output
Note: Ripple and noise at no load, 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 5 Vdc - 12 Vdc/1A Output
Transient Response Waveforms
50% to 75% load transient at 5 Vdc output
75% to 50% load transient at 5 Vdc output
50% to 75% load transient at 9 Vdc output
75% to 50% load transient at 9 Vdc output
50% to 75% load transient at 12 Vdc output
75% to 50% load transient at 12 Vdc output
Note: Transient response at 12 Vdc 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 5 Vdc - 12 Vdc/1A Output
Mechanical Outline
SRAH-01Kxxx
Pin Connections
bel
Pin 1 2 3 4 5 6 7
Function On/Off Vin Ground Vout N/A N/A N/A
VRAH-01Kxxx
Pin Connections
bel
Pin 1 2 3 4 5
Function On/OFF Vin Ground Vout N/A
bel
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.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 010907
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
