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SRAH-08E500 Datasheet

  • SRAH-08E500

  • NON-ISOLATED DC/DC CONVERTERS

  • 10頁

  • BEL   BEL

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NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input
0.8 Vdc - 5.5 Vdc/8 A Output
xRAH-08E Series
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Non-Isolated
Fixed Frequency
High Efficiency
High Power Density
Low Cost
RoHS Compliant
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Remote On/Off
Rev.A
Under-voltage Lockout (UVLO)
OCP/SCP
Wide Trim Range
UL60950-1 Recognized (UL/cUL)
Description
The Bel xRAH-08Exxx modules are a series of non-isolated, step down dc/dc converters that operate from 4.5
Vdc to14 Vdc source. These converters are available in a range of output voltages from 0.8 Vdc to 5.5 Vdc. It is
packaged in a compact, overmolded package rated at 8 A. Optional lead forming provides a vertical mount
product for minimal footprint or a surface mount option for a very low profile. The output is closely regulated and
the efficiency for 5 Vdc output is typically 93% at full load.
Part Selection
Output
Voltage
0.8 V - 3.63 V
4.5 V - 5.5 V
Input
Voltage
4.5 V - 14 V
8 V - 14 V
Max. Output
Current
8A
8A
Max. Output
Power
26.4 W
44 W
Typical
Efficiency
91%
93%
Part Number
Surface Mount
SRAH-08E1A0
SRAH-08E500
Part Number
Vertical Mount
VRAH-08E1A0
VRAH-08E500
Notes:
1. Add 鈥?鈥?suffix at the end of the model number to indicate 鈥淭ube Packaging鈥? and 鈥淩鈥?for 鈥淩eel
Packaging鈥? and 鈥淕鈥?for 鈥淭ray Packaging鈥?
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)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40
擄C
-55
擄C
Typ
-
-
-
-
Max
15 V
14 V
85
擄C
125
擄C
Notes
Input Specifications
Parameter
Input Voltage
Vo=4.5 V-5.5 V
Vo=0.9 V-3.63 V
Input Current (full load)
Vo=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
8.0 V
4.5 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3 mA
250 mA
70 mA
14 V
14 V
5.4 A
6.7 A
5.3 A
3.2 A
3.0 A
2.8 A
2.0 A
100 mA
10 mA
-
-
With simulated source impedance of 500 nH,
5 Hz to 20 MHz; use two 47 uF/16 V low ESR
Tantalum capacitors.
Min
Typ
Max
Notes
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
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Tel 201-432-0463
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Fax 201-432-9542
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www.belfuse.com

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