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SW001A2B9 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 13 Page - Lineage Power Corporation

๋ถ€ํ’ˆ๋ช… SW001A2B9
์ƒ์„ธ๋‚ด์šฉ  SW/SC001/003 Series DC-DC Converter Power Modules 18-36V & 36-75Vdc Input; 3.3V-15Vdc Output; 1-3.5A Output Current
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์ œ์กฐ์‚ฌ  LINEAGEPOWER [Lineage Power Corporation]
ํ™ˆํŽ˜์ด์ง€  http://www.lineagepower.com
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SW001A2B9 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 13 Page - Lineage Power Corporation

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Data Sheet
October 5, 2009
SW/SC001/003 Series DC-DC Power Module:
18-36Vdc & 36-75Vdc Input; 3.3-15Vdc Output; 1-3.5A Output Current
LINEAGE POWER
13
Test Configurations
TO OSCILLOSCOPE
CURRENT PROBE
LTEST
12ฮผH
CS
220ฮผF
E.S.R.<0.1
ฮฉ
@ 20ยฐC 100kHz
33ฮผF
Vin+
Vin-
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 12ฮผH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
Figure 43. Input Reflected Ripple Current Test Setup.
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
VO(+)
V O(โ€“)
1uF .
RESISTIVE
LOAD
SCOPE
COPPER STRIP
GROUND PLANE
10uF
Figure 44. Output Ripple and Noise Test Setup.
Vout+
Vout-
Vin+
Vin-
RLOAD
Rcontact
Rdistribution
Rcontact
Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
VIN
VO
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 45. Output Voltage and Efficiency Test Setup.
ฮท =
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance source. Highly inductive source
impedance can affect the stability of the power module.
For the test configuration in Figure 43, a 33ฮผF
electrolytic capacitor (ESR<0.7
ฮฉ at 100kHz), mounted
close to the power module helps ensure the stability of
the unit. Consult the factory for further application
guidelines.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL 60950-1-3, CSA C22.2 No. 60950-00, and VDE
0805 (IEC60950, 3
rd Edition).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75Vdc), for the moduleโ€™s output to be considered as
meeting the requirements for safety extra-low voltage
(SELV), all of the following must be true:
The input source is to be provided with reinforced
insulation from any other hazardous voltages,
including the ac mains.
One VIN pin and one VOUT pin are to be grounded,
or both the input and output pins are to be kept
floating.
The input pins of the module are not operator
accessible.
Another SELV reliability test is conducted on the
whole system (combination of supply source and
subject module), as required by the safety agencies,
to verify that under a single fault, hazardous
voltages do not appear at the moduleโ€™s output.
Note:
Do not ground either of the input pins of the
module without grounding one of the output pins.
This may allow a non-SELV voltage to appear
between the output pins and ground.
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
For input voltages exceeding โ€“60 Vdc but less than or
equal to โ€“75 Vdc, these converters have been evaluated
to the applicable requirements of BASIC INSULATION
between secondary DC MAINS DISTRIBUTION input
(classified as TNV-2 in Europe) and unearthed SELV
outputs.
The input to these units is to be provided with a
maximum 3A time-delay fuse in the ungrounded lead.


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