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參數(shù)資料
| 型號： | LM35 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大小： | 303K |
| 代理商： | LM35 |
Typical Applications
CAPACITIVE LOADS
Like most micropower circuits, the LM35 has a limited ability
to drive heavy capacitive loads. The LM35 by itself is able to
drive 50 pf without special precautions. If heavier loads are
anticipated, it is easy to isolate or decouple the load with a
resistor; see Figure 3 Or you can improve the tolerance of
capacitance with a series R-C damper from output to
ground; see Figure 4
When the LM35 is applied with a 200
load resistor as
shown in Figure 5 Figure 6or Figure 8it is relatively immune
to wiring capacitance because the capacitance forms a by-
pass from ground to input, not on the output. However, as
with any linear circuit connected to wires in a hostile envi-
ronment, its performance can be affected adversely by in-
tense electromagnetic sources such as relays, radio trans-
mitters, motors with arcing brushes, SCR transients, etc, as
its wiring can act as a receiving antenna and its internal
junctions can act as rectifiers. For best results in such cases,
a bypass capacitor from V
IN
to ground and a series R-C
damper such as 75
in series with 0.2 or 1 μF from output to
ground are often useful. These are shown in Figure 13
Figure 14 and Figure 16
DS005516-19
FIGURE 3. LM35 with Decoupling from Capacitive Load
DS005516-20
FIGURE 4. LM35 with R-C Damper
DS005516-5
FIGURE 5. Two-Wire Remote Temperature Sensor
(Grounded Sensor)
DS005516-6
FIGURE 6. Two-Wire Remote Temperature Sensor
(Output Referred to Ground)
DS005516-7
FIGURE 7. Temperature Sensor, Single Supply, 55 to
+150C
DS005516-8
FIGURE 8. Two-Wire Remote Temperature Sensor
(Output Referred to Ground)
DS005516-9
FIGURE 9. 4-To-20 mA Current Source (0C to +100C)
L
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM350 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Terminal 3A Positive Adjustable Voltage Regulator |
| LM350/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Three-Terminal Adjustable Output Positive Voltage Regulator |
| LM350_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three-terminal 3 A adjustable voltage regulators |
| LM350_09 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Terminal 3A Positive Adjustable Voltage Regulator |
| LM3500 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Step-up DC/DC Converter for White LED |
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