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參數(shù)資料
| 型號： | MP230 |
| 廠商： | Apex Microtechnology Corporation |
| 元件分類： | 運動控制電子 |
| 英文描述： | POWER OPERATIONAL AMPLIFIER |
| 中文描述： | 功率運算放大器 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大?。?/td> | 309K |
| 代理商： | MP230 |
APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
5
any parasitic resistances RP, formed by socket and solder joints
as well as internal amplifi er losses.The current limiting resistor
may not be placed anywhere in the output circuit except where
shown in Figure 2. The value of the current limit resistor can
be calculated as follows: R
LIM
= .65/I
LIMIT
BOOST OPERATION
With the boost feature the small signal stages of the amplifier
are operated at a higher supply voltages than the amplifier’s
high current output stage. +V
B
(pin 1) and -V
B
(pin 38) are
connected to the small signal stages. An additional 10V on the
+V
B
and -V
B
pin is sufficient to allow the small signal stages
to drive the output stage into the triode region and improve
the output voltage swing for extra efficient operation when
required. When the boost feature is not needed +V
S
and
-V
S
are connected to +V
B
and -V
B
respectively. +V
B
and -V
B
must not be operated at supply voltages less than +V
S
and
-V
S
respectively.
OPERATING
CONSIDERATIONS
MP230
SHUTDOWN
The output stage is turned off by applying a 5V level to HSD
(pin 8) relative to LSD (pin 7). This is a non-latching circuit. As
long as HSD remains high relative to LSD the output stage will
be turned off. LSD will normally be tied to signal ground but
LSD may float from -V
B
to +V
B
- 10V. Shutdown can be used
to lower quiescent current for standby operation or as part of
a load protection circuit.
BIAS CLASS OPTION
Normally pin 5 (Iq) is left open. But when pin 5 is connected
to pin 6 (Cc1) the quiescent current in the output stage is dis-
abled. This results in lower quiescent power, but also class
C operation of the output stage and the resulting crossover
distortion. In many applications, such as driving motors, the
distortion may be unimportant and lower standby power dis-
sipation is an advantage.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MP2303 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2303_06 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2303ADN-LF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3A, 28V, 360kHz Synchronous Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP2303ADN-LF-Z | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3A, 28V, 360kHz Synchronous Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP2303DN | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
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