BEL VRAH

NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
xRAH-01K Series
RoHS Compliant
Rev.A
• Non-Isolated
• Low Profile Package
• High Efficiency
• Remote On/Off
• Fixed Frequency (450kHz)
• 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
Notes
Input Specifications
Parameter
Input Voltage
Remote Off Input Current
Input Current (no load)
Input Current (full load)
Min
9V
-
Typ
18 mA
30 mA
Max
18 V
25 mA
45 mA
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
I t Inrush Current Transient
-
0.003 A s
0.01 A s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
8.0 V
7.2 V
8.5 V
7.6 V
8.8 V
8.2 V
2
2
With simulated source impedance of
500 nH, 5 Hz to 20 MHz; Use one 100
uF/25 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
5 Vdc - 12 Vdc/1A Output
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
Max
Vo=5 V
Vo=9 V
Vo=12 V
4.90 V
8.82 V
11.76 V
5V
9V
12 V
5.10 V
9.18 V
12.24 V
Vo=5 V
Vo=9 V
Vo=12 V
-
8 mV
15 mV
20 mV
15 mV
25 mV
35 mV
Vo=5 V
Vo=9 V
Vo=12 V
-
15 mV
25 mV
35 mV
25 mV
45 mV
60 mV
Vo=5 V
Vo=9 V
Vo=12 V
0.005 A
1.1 A
50 mV
70 mV
90 mV
-
80 mV
100 mV
140 mV
1A
1.8 A
Vo=5 V
Vo=9 V
Vo=12 V
-
3 mV
3 mV
4 mV
5 mV
5 mV
6 mV
Vo=5 V
Vo=9 V
Vo=12 V
-
10 mV
15 mV
20 mV
15 mV
20 mV
30 mV
Vo=5 V
Vo=9 V
Vo=12 V
-
15 mV
25 mV
35 mV
25 mV
35 mV
50 mV
Vo=5 V
Vo=9 V
Vo=12 V
-
40 mV
70 mV
110 mV
70 mV
100mV
160mV
Vo=5 V
Vo=9 V
Vo=12 V
0 uF
20 mS
30 mS
30 mS
0%
-
30 mS
45 mS
45 mS
5%
47 uF
-
200mV
100uS
200mV
100uS
300mV
150uS
300mV
150uS
350mV
150uS
350mV
150uS
300mV
150uS
300mV
150uS
400mV
200uS
400mV
200uS
500mV
200uS
500mV
200uS
Notes
Test condition:
Vin=12 V, lout=full load
Line Regulation
Load Regulation
Regulation Over Temperature
(-40°C to +85 °C)
Output Current
Output DC Current Limit
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Test conditions:
BW = 0-20 MHz; with π
filter (Co1=10 uF, L=0.47
uH, Co2=10 uF) at the
output
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Test conditions:
BW = 0-20 MHz; with two
10 uF ceramic capacitors at
the output.
Turn On Time
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
5.0 V
9.0 V
12.0 V
di/dt = 0.5 A/uS; Vin = 12
V; and with two 10 uF
ceramic capacitors 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
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
General Specifications
Parameter
Min
Typ
Max
Notes
77%
82%
83%
81%
86%
87%
-
400 kHz
450 kHz
480 kHz
Efficiency
Vo=5 V
Vo=9 V
Vo=12 V
Switching Frequency
MTBF
Calculated Per Bell Core TR-332 (IO =
Nominal; Ta = 25°C)
14,760,000 hours
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
-
5g
Measured at Vin=12 V, full load
-
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)
2.5 V
-
Vin
Signal Low (Unit Off)
-0.3 V
-
0.4 V
Signal High (Unit On)
2.5 V
-
Vin
Notes
Remote On/Off
xRAH-01KxxL, Remote On/Off pin open, unit
off.
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
100.0%
Efficiency
80.0%
60.0%
9V
40.0%
12V
18V
20.0%
0.0%
0.100
0.250
0.500
0.750
1.000
Output current (A)
x7AH-01K500
100.0%
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
9V
12V
18V
0.100
0.250
0.500
0.750
1.000
x7AH-01K900
100.0%
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
9V
12V
18V
0.100
0.250
0.500
0.750
1.000
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
VRAH-01Kxxx
Pin
1
2
3
4
5
6
7
Function
On/Off
Vin
Ground
Vout
N/A
N/A
N/A
Pin Connections
bel
bel
Pin
Function
1
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 °C.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 010907
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