Data Sheet
12V Austin LynxTM SIP Non-isolated Power Modules, Programmable:
10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current
March 30, 2008
Design Considerations (continued)
Safety Considerations
Output Filtering
For safety agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards,
i.e., UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE
0850:2001-12 (EN60950-1) Licensed.
The 12V Austin Lynx Programmable SIP module is
designed for low output ripple voltage and will meet the
maximum output ripple specification with 1 µF ceramic
and 10 µF tantalum capacitors at the output of the
module. However, additional output filtering may be
required by the system designer for a number of
reasons. First, there may be a need to further reduce
the output ripple and noise of the module. Second, the
dynamic response characteristics may need to be
customized to a particular load step change.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power
module has extra-low voltage (ELV) outputs when all
inputs are ELV.
The input to these units is to be provided with a fast-
acting fuse with a maximum rating of 15A in the positive
input lead.
To reduce the output ripple and improve the dynamic
response to a step load change, additional capacitance
at the output can be used. Low ESR polymer and
ceramic capacitors are recommended to improve the
dynamic response of the module. For stable operation
of the module, limit the capacitance to less than the
maximum output capacitance as specified in the
electrical specification table.
LINEAGE POWER
11
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
