SLIN-02E2A BEL [Bel Fuse Inc.], SLIN-02E2A Datasheet - Page 13

• Manufacturer Part Number: SLIN-02E2A
• Description: NON-ISOLATED DC/DC CONVERTERS
• Manufacturer: BEL [Bel Fuse Inc.]

Output Filtering
The SLIN-02E2Ax modules are designed for low output ripple voltage and will meet the maximum output ripple
specification with 0.1 µF ceramic and 22 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. A minimum 22uF External Cap must be used
information for different external capacitance values at various Vo and for a load current of 2A. 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 achieved by using the Tunable Loop
feature described later in this data sheet.
Note: Output ripple voltage for various output voltages with external 1x22 µF, 1x47 µF, 2x47 µF ceramic
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, and DIN EN
60950-1 (VDE 0850 Teil 1):2006-11.
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 4A in the positive
input lead.
January 14, 2011
NON-ISOLATED DC/DC CONVERTERS
3 Vdc - 14 Vdc Input, 0.6 Vdc - 5.5 Vdc /2 A Outputs
capacitors at the output (2A load). Input voltage is 12V.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] •
14
12
10
8
6
4
2
0
0.5
1.5
Output Voltage(Volts)
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
2.5
1x22uF External Cap
1x47uF External Cap
2x47uF External cap
3.5
.
The figure below provides output ripple
4.5
www.belfuse.com
13
TM