Preliminary Data Sheet
9-36V ProLynx
TM
5A: Non-isolated DC-DC Power Modules
October 28, 2010
9 – 36Vdc input; 3Vdc to 18Vdc output; 5A to 2.5A output current
Output Filtering
The 9-36V ProLynx modules are designed for low
output ripple voltage and will meet the maximum output
ripple specification with 0.1 µF ceramic and 10 µF
ceramic 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.
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. Figures 30 and 31
provide output ripple information for different external
capacitance values at various Vo and for full load
currents. For stable operation of the module, limit the
capacitance to less than the maximum output
capacitance as specified in the electrical specification
table. Optimal performance of the module can be
TM
achieved by using the Tunable Loop feature
described later in this data sheet.
50
1x10uF
TM
170
150
130
110
Ripple(mVp-p)
90
70
50
30
10
2
4
1x10uF
2x10uF
4x10uF
6
8
10
12
14
16
18
Output Voltage(Volts)
Figure 31. Output ripple voltage for various output
voltages with external 1x10 µF, 2x10 µF or 4x10 µF
ceramic capacitors at the output (max. load). Input
voltage is 28V.
Safety Considerations
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.
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 8A in the positive
input lead
.
40
Ripple(mVp-p)
2x10uF
4x10uF
30
20
10
3
4
5
6
Output Voltage(Volts)
7
8
Figure 30. Output ripple voltage for various output
voltages with external 1x10 µF, 2x10 µF or 4x10 µF
ceramic capacitors at the output (max. load). Input
voltage is 12V.
LINEAGE
POWER
11
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
