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
• Non-Isolated • Low Profile Package
• High Efficiency • Remote On/Off
• Fixed Frequency (450kHz)
• UL60950-1 Recognized (UL/cUL)
• Active Low/High
Description
The Bel xRAH-01Kxxx is a part of the low cost no n-isolated dc/dc converter Power Mod ule 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 Input Voltage Max. Output
Current Max. Output
Power Typical
Efficiency Part Number
Surface Mount Part Number
Vertical Mount
5 V 9 V - 18 V 1 A 5 W 81% SRAH-01K50x VRAH-01K50x
9 V 9 V - 18 V 1 A 9 W 86% SRAH-01K90x VRAH-01K90x
12 V 9 V - 18 V 1 A 12 W 87% SRAH-01KX2x 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 Min Typ Max Notes
Input Voltage (continuous) -0.3 V - 24 V
Remote On/Off -0.3 V - 24 V
Ambient Temperature -40 °C - 85 °C
Storage Temperature -40 °C - 125 °C
Input Specifications
Parameter Min Typ Max Notes
Input Voltage 9 V - 18 V
Remote Off Input Current - 18 mA 25 mA
Input Current (no load) - 30 mA 45 mA
Input Current (full load) Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
-
-
-
0.8 A
1.3 A
1.8 A
Input Reflected Ripple Current (pk-pk)
Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
55 mA
75 mA
95 mA
80 mA
110 mA
130 mA
Input Reflected Ripple Current (rms)
Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
15 mA
20 mA
30 mA
25 mA
30 mA
40 mA
With simulated source impedance of
500 nH, 5 Hz to 20 MHz; Use one 100
uF/25 V tantalum capacitor at the input.
I2t Inrush Current Transient - 0.003 A2s 0.01 A2s
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
Note: All specifications are typical at 25°C unless otherwise stated.
xRAH-01K Series RoHS Com
p
liant Rev.A
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 Min Typ Max Notes
Output Voltage Set Point Vo=5 V
Vo=9 V
Vo=12 V
4.90 V
8.82 V
11.76 V
5 V
9 V
12 V
5.10 V
9.18 V
12.24 V
Test condition:
Vin=12 V, lout=full l o ad
Line Regulation Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
8 mV
15 mV
20 mV
15 mV
25 mV
35 mV
Load Regulation Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
15 mV
25 mV
35 mV
25 mV
45 mV
60 mV
Regulation Over Temperature
(-40°C to +85 °C) Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
50 mV
70 mV
90 mV
80 mV
100 mV
140 mV
Output Current 0.005 A - 1 A
Output DC Current Limit 1.1 A - 1.8 A
Ripple and Noise (rms) Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
3 mV
3 mV
4 mV
5 mV
5 mV
6 mV
Ripple and Noise (pk-pk) Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
10 mV
15 mV
20 mV
15 mV
20 mV
30 mV
Test conditions:
BW = 0-20 MHz; with π
filter (Co1=10 uF, L=0.47
uH, Co2=10 uF) a t the
output
Ripple and Noise (rms) Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
15 mV
25 mV
35 mV
25 mV
35 mV
50 mV
Ripple and Noise (pk-pk) Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
40 mV
70 mV
110 mV
70 mV
100mV
160mV
Test conditions:
BW = 0-20 MHz ; wi th tw o
10 uF ceramic capacitors at
the output.
Tur n On Time Vo=5 V
Vo=9 V
Vo=12 V
-
-
-
20 mS
30 mS
30 mS
30 mS
45 mS
45 mS
Overshoot at Turn on - 0% 5%
Output Capacitance 0 uF - 47 uF
Transient Response
Overshoot - 200mV 300mV
50% ~ 75 %
Max Load Settling Time - 100uS 150uS
Overshoot - 200mV 300mV
75% ~ 50 %
Max Load Settling T ime
5.0 V
- 100uS 150uS
Overshoot - 300mV 400mV
50% ~ 75 %
Max Load Settling Time - 150uS 200uS
Overshoot - 300mV 400mV
75% ~ 50 %
Max Load Settling T ime
9.0 V
- 150uS 200uS
Overshoot - 350mV 500mV
50% ~ 75 %
Max Load Settling Time - 150uS 200uS
Overshoot - 350mV 500mV
75% ~ 50 %
Max Load Settling T ime
12.0 V
- 150uS 200uS
di/dt = 0.5 A/uS; Vin = 12
V; and with two 10 uF
ceramic capacitors at t he
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
9.0 Vdc - 18 Vdc Input 5 Vdc - 12 Vdc/1A Output
General Specifications
Parameter Min Typ Max Notes
Efficiency
Vo=5 V
Vo=9 V
Vo=12 V
77%
82%
83%
81%
86%
87%
-
-
-
Measured at Vin=12 V, full load
Switching Frequency 400 kHz 450 kHz 480 kHz
MTBF 14,760,000 hours Calculated Per Bell Core TR-332 (IO =
Nominal; Ta = 25 °C)
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
0.78 x 0.7 x 0.32
19.81 x 17.78 x 8.13
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
Weight - 5 g -
Note: All specifications are typical at 25°C unless otherwise stated.
Control Specifications
Parameter Min Typ Max Notes
Remote On/Off
Signal Low (Unit On) -0.3 V - 0.4 V
Signal High (Unit Off) 2.5 V - Vin xRAH-01KxxL, Remote On/Off pin open, unit
off.
Signal Low (Unit Off) -0.3 V - 0.4 V
Signal High (Unit On) 2.5 V - Vin xRAH-01Kxx0, 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 5 Vdc - 12 Vdc/1A Output
Efficiency Data
0.0%
20.0%
40.0%
60.0%
80.0%
100.0%
0.100 0.250 0.500 0.750 1.000
Output current (A)
Efficienc
y
9V
12V
18V
x7AH-01K500
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
100.0%
0.100 0.250 0.500 0.750 1.000
9V
12V
18V
x7AH-01K900
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
100.0%
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 an d 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.
©
2007 Bel Fuse Inc. Specifications subject to change without notice. 010907
CORPORATE FAR EAST EUROPE
Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd.
206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre
Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston
Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K.
Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601
www.belfuse.com Fax 852-2352-3706 Fax 44-1772-888366
www.belfuse.com www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input 5 Vdc - 12 Vdc/1A Output
Mechanical Outline
SRAH-01Kxxx
VRAH-01Kxxx
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.
bel
Pin Connections
Pin Function
1 On/Off
2 Vin
3 Ground
4 Vout
5 N/A
6 N/A
7 N/A
Pin Connections
Pin Function
1 On/OFF
2 Vin
3 Ground
4 Vout
5 N/A
bel
bel
