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參數(shù)資料
| 型號： | ARM2815T |
| 英文描述： | Hi-Rel DC-DC MegaRad-Hard Triple Converter in a ARM package |
| 中文描述： | 高可靠性的DC - DC MegaRad硬三轉(zhuǎn)換器在ARM的包 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 94K |
| 代理商： | ARM2815T |
www.irf.com
9
ARM28XXT Series
Additional Filtering
Figure V. ARF461 Input EMI Filter
An external filter may also be added to the output where
circuit requirements dictate extremely low output ripple
noise. The output filter described by Figure VI has been
characterized with the ARM2815T using the values shown
in the associated material list.
It is important to be aware that when filtering high fre-
quency noise, parasitic circuit elements can easily domi-
nate filter performance. Therefore, it is incumbent onthe
designer to exercise care when preparing a circuit layout
for such devices. Wire runs and lengths should be mini-
mized, high frequency loops should be avoided and care-
ful attention paid to the construction details of magnetic
circuit elements. Tight magnetic coupling will improve overall
magnetic performance and reduce stray magnetic fields.
Figure VI. External Output Filter
Measurement techniques can impose a significant influ-
ence on results. All noise measurements should be mea-
sured with test leads as close to the device output pins
and as short as physically possible. Probe ground leads
should be kept to a minimum length.
Although internal filtering is provided at both the input and
output terminals of the ARM2800 series, additional filtering
may be desirable in some applications to accommodate
more stringent system requirements.
While the internal input filter of Figure IV keeps input ripple
current below 100 mA
, an external filter is available that
will further attenuate this ripple content to a level below the
CE03 limits imposed by MIL-STD-461B. Figure V is a
general diagram of the Advanced Analog ARF461 filter
module designed to operate in conjunction with the
ARM2800 series converters to provide that attenuation.
This circuit as shown in Figure V is constructed using the
same quality materials and processes as those employed
in the ARM2800 series converters and is intended for use
in the same environments. This filter is fabricated in a
complementary package style whose output pin configu-
ration allows pin to pin connection between the filter and
the converter. More complete information on this filter can
be obtained from the ARF461 data sheet.
+5 V
5V
Return
+15V
15V
Return
-15V
+5V Out
+5V
Return
+15V
Out
15V
Return
-15V
Out
C1
C2
C3
C4
C5
C6
C7
C8
L1
L2
L4
L3
L1
L2
L3
L4
C 1-C 5
C 6
C 7,C 8
7 turns AWG 21 bifila r on Ma g Inc . c ore PN YJ -41305-TC or equiva lent.
7 turns AWG 24 trifila r on Ma g Inc . c ore PN YJ -41305-TC or equiva lent.
4 turns A WG 21 on Ma g Inc . c ore PN MPP55048 or equiva lent.
5 turns A WG 21 bifila r on Ma g Inc . c ore PN MPP55048 or equiva lent.
2200pF type C KR c era mic c a pa c itor.
170μF, 15V M39006/22-0514 Ta nta lum.
25μF, 50V M39006/22-0568 Ta nta lum.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ARM2815T/CK | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HYBRID - HIGH RELIABILITY 1 MEGA-RAD HARDENED DC/DC CONVERTER |
| ARM2815T/EM | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HYBRID - HIGH RELIABILITY 1 MEGA-RAD HARDENED DC/DC CONVERTER |
| ARM28XXT | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HYBRID - HIGH RELIABILITY 1 MEGA-RAD HARDENED DC/DC CONVERTER |
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