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參數(shù)資料
| 型號(hào)： | ELH0101K |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | Power Operational Amplifier |
| 中文描述： | 功率運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大?。?/td> | 326K |
| 代理商： | ELH0101K |
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ELH010188385089012YX
Power Operational Amplifier
Application Information
Contd
Cooling is normally required to maintain the
worst case operating junction temperature TJ of
the device below the specified maximum value
TJ(MAX) TJ can be calculated from known oper-
ating conditions Rewriting equation (1) we find
iJA e
TJ b TA
PD
CW
TJ e TA a PDiJA C
Where PD e (VS b VOUT)IOUT a
lVg
(Vb)
lIQ
iJA e iJC a iCS a iSA and
VS e Supply Voltage
iJC for the ELH0101 is typically 2 CW
Stability and Compensation
As with most amplifiers care should be taken
with lead dress component placement and sup-
ply decoupling in order to ensure stability For
example resistors from the output to an input
should be placed with the body close to the input
to minimize ‘‘pickup’’ and maximize the frequen-
cy of the feedback pole by minimizing the capaci-
tance from the input to ground
A feedback pole is created when the feedback
around any amplifier is resistive The parallel re-
sistance and capacitance from the input of the
device (usually the inverting input) to AC
ground set the frequency of the pole In many
instances the frequency of this pole is much
greater than the expected 3 dB frequency of the
closed loop gain and consequently there is negli-
gible effect on stability margin However if the
feedback pole is less than approximately six
times the expected 3 dB frequency a lead capaci-
tor should be placed from the output to the input
of the op amp The value of the added capacitor
should be such that the RC time constant of this
capacitor and the resistance it parallels is greater
than or equal to the original feedback pole time
constant
Some inductive loads may cause output stage os-
cillation A 001
mF ceramic capacitor in series
with a 10
X resistor from the output to ground
will usually remedy this situation
0101 – 16
Capacitive loads may be compensated for by tra-
ditional techniques (See ‘‘Operational Amplifi-
ers Theory and Practice’’ by Roberge published
by Wiley)
0101 – 17
A similar but alternative technique may be used
for the ELH0101
0101 – 18
11
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ELH0101K/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| ELH03500E | 制造商:Amphenol PCD 功能描述: |
| ELH101100 | 功能描述:CONN TERM BLK CARD EDGE 10POS RoHS:是 類別:連接器，互連式 >> 接線板 - 適配器 系列:ELECTROCON ELH 標(biāo)準(zhǔn)包裝:1 系列:VARIOFACE, FLKM 轉(zhuǎn)換源（適配器端）:PLC TI 505 轉(zhuǎn)換到（適配器端）:矩形連接器，50 位置，2 排 安裝類型:板式安裝 線規(guī):- 其它名稱:FLKM50-PA-TI/505/I/O |
| ELH102100 | 功能描述:CONN TERM BLK CARD EDGE 10POS RoHS:是 類別:連接器，互連式 >> 接線板 - 適配器 系列:ELECTROCON ELH 標(biāo)準(zhǔn)包裝:1 系列:VARIOFACE, FLKM 轉(zhuǎn)換源（適配器端）:PLC TI 505 轉(zhuǎn)換到（適配器端）:矩形連接器，50 位置，2 排 安裝類型:板式安裝 線規(guī):- 其它名稱:FLKM50-PA-TI/505/I/O |
| ELH107M400AQ2AA | 功能描述:鋁質(zhì)電解電容器-管理單元 100uF 400V 20% 85C Snap in 22x30 RoHS:否 制造商:Nichicon 電容:470 uF 容差:20 % 電壓額定值:450 V ESR: 工作溫度范圍:- 25 C to + 105 C 系列:AR 直徑:35 mm 長(zhǎng)度:45 mm 引線間隔:10 mm 產(chǎn)品:General Purpose Electrolytic Capacitors |
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