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參數(shù)資料
| 型號： | YNV05T10015-0 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 25/26頁 |
| 文件大?。?/td> | 435K |
| 代理商： | YNV05T10015-0 |
OCT 17, 2006 revised to APR 11, 2007
Page 8 of 26
www.power-one.com
YNV05T100xy DC-DC Converter Family Data Sheet
3.0-5.5 VDC Input; 0.9-3.3 VDC Output @ 10A
Overtemperature Protection (OTP)
The converter will shut down under an over-
temperature condition to protect itself from
overheating caused by operation outside the
thermal derating curves, or operation in abnormal
conditions such as system fan failure. After the
converter has cooled to a safe operating
temperature, it will automatically restart.
Safety Requirements
The converter meets North American and
International safety regulatory requirements per
UL60950 and EN60950. The maximum DC
voltage between any two pins is Vin under all
operating conditions. Therefore, the unit has ELV
(extra low voltage) output; it meets SELV
requirements under the condition that all input
voltages are ELV.
The converter is not internally fused. To comply
with safety agencies requirements, a recognized
fuse with a maximum rating of 20 Amps must be
used in series with the input line.
Characterization
General Information
The converter has been characterized for many
operational aspects, to include thermal derating
(maximum load current as a function of ambient
temperature and airflow) for vertical and horizontal
mounting, efficiency, start-up parameters, output
ripple and noise, and transient response to load
step-change.
The figures are numbered as Fig. x.y, where x
indicates the different output voltages, and y
associates with specific plots (y = 1 for the vertical
thermal derating, …). For example, Fig. x.1 will
refer to the vertical thermal derating for all the
output voltages in general.
The following pages contain specific plots or
waveforms
associated
with
the
converter.
Additional comments for specific data are provided
below.
Test Conditions
All thermal and efficiency data presented were
taken with the converter soldered to a test board,
specifically a 0.060” thick printed wiring board
(PWB) with four layers. The top and bottom layers
were not metalized. The two inner layers,
comprising two-ounce copper, were used to
provide traces for connectivity to the converter.
The lack of metalization on the outer layers as well
as the limited thermal connection ensured that
heat transfer from the converter to the PWB was
minimized. This provides a worst-case but
consistent scenario for thermal derating purposes.
All measurements requiring airflow were made in
vertical and horizontal wind tunnel facilities using
Infrared (IR) thermography and thermocouples for
thermometry.
Ensuring components on the converter do not
exceed their ratings is important to maintaining
high reliability. If one anticipates operating the
converter at or close to the maximum loads
specified in the derating curves, it is prudent to
check actual operating temperatures in the
application. Thermographic imaging is preferable;
if
this
capability
is
not
available,
then
thermocouples
may
be
used.
Power-One
recommends the use of AWG #40 gauge
thermocouples to ensure measurement accuracy.
Careful routing of the thermocouple leads will
further minimize measurement error. Refer to Fig.
G for optimum measuring thermocouple location.
Fig. G: Location of the thermocouple for thermal testing.
Thermal Derating
Load current vs. ambient temperature and airflow
rates are given in Figs. x.1 to x.2 for maximum
temperature of 120°C. Ambient temperature was
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