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参数资料
| 型号： | YV09T50-0G |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-15 |
| 文件页数： | 3/13页 |
| 文件大小： | 701K |
| 代理商： | YV09T50-0G |
YV09T50 50A DC-DC POL Converter
5V to 13.8V Input 0.6V to 3.63V Output
Data Sheet
start a
matically when the input volta
uto
ge exceeds
ns.
Upon sensing an
will shut
s nominal value.
r than
erature condition to protect itself from
thermal
e
and input reflected ripple
current waveforms are measured using the test
p
Figure 19. Test Setup For Measuring Input Reflected-Ripple
Current And Output Voltage Ripple
om input to output.
The input devices
powe
09T
must provide relevant isolation
requirement
a
ng to all IEC60
a
sta
s. Nev
less, if the system using the
converter needs to
ceive safety agency approval,
ertain rules must be followed in the design of the
ystem.
In particular, all of the creepage and
c
requirements
These
re included in UL60950 - CSA60950-
8.
Safety
The YV09T50-0 POL converters do not provide
isolati
the specified threshold.
6.5.3
Output Overcurrent Protection
The POL converter is protected against overcurrent
and short circuit conditio
overcurrent condition, the POL converter
down. Once the converter has shut down, it will
attempt to restart nominally every 10 ms with a
typical 2% duty cycle. The attempted restart will
continue indefinitely until the overload or short circuit
condition is removed.
When the overload or short circuit condition is
removed, the POL converter will automatically restart
and Vout will return to it
6.5.4
Output Overvoltage Protection
The POL converter is protected against overvoltage
on the output. If the output voltage is highe
125% of its nominal value set by the RTRIM, the high
side MOSFETs will be immediately turned off and
the low side MOSFETs will be turned on. The POL
converter will remain in the state until the output
voltage reduces below 120% of its nominal value. At
that point the POL converter will automatically
restart.
6.5.5
Overtemperature Protection
The POL converter will shut down under an
overtemp
overheating caused by operation outside the
derating curves, or operation in abnormal conditions
such as system fan failure. After the POL converter
has cooled to a safe operating temperature, it will
automatically restart.
7.
Characterization
7.1
Ripple and Nois
The output voltage ripple
setu shown in Figure 19.
on fr
ring YV
50-0
s
ccordi
950 b sed
ndard
erthe
re
c
s
learance requirements of the end-use safety
must
be
observed.
requirements a
00 and EN60950, although specific applications may
have other or additional requirements.
The YV09T50-0 POL converters have no internal
fuse.
If required, the external fuse needs to be
provided to protect the converter from catastrophic
failure. Refer to the “Input Fuse Selection for DC/DC
converters” application note on www.power-one.com
for proper selection of the input fuse. Both input
traces and the chassis ground trace (if applicable)
must be capable of conducting a current of 1.5 times
the value of the fuse without opening.
To comply with safety agencies’ requirements, a
recognized fuse must be used in series with the input
erter to be
line. The fuse must not be placed in the grounded
input line. Abnormal and component failure tests
were conducted with the POL input protected by
three 15A/125VDC fuses connected in parallel. If
fuses rated greater than 15A are used, additional
testing may be required.
The maximum DC voltage between any two pins is
Vin under all operating conditions. In order for the
output of the YV09T50-0 POL conv
considered as SELV (Safety Extra Low Voltage),
according to all IEC60950 based standards, the input
to the POL needs to be supplied by an isolated
secondary source providing a SELV also.
iS
Vout
Vsource
470F
capacitor
1.0H
source
inductance
CIN
100F
tantalum
+ 47F
ceramic
capacitor
YV09T50
ZD-02078 Rev 1.0
www.power-one.com
Page 11 of 13
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| YV10X5R4A-2L | 制造商:Fujinon 功能描述:Varifocal Lens |
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