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參數(shù)資料
| 型號： | LM3411M5X-5.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Precision Secondary Regulator/Driver |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, PDSO5 |
| 封裝： | SOT-23, SOP-5 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大小： | 350K |
| 代理商： | LM3411M5X-5.0 |
Applications Information
(Continued)
A simple 5V supply monitor circuit is shown in Figure 12 Us-
ing the LM3411’s voltage reference, op-amp (as a compara-
tor) and output driver, this circuit provides a LED indication of
the presence of the 5V supply.
The LM3411 initial room temperature tolerance is
±
1% and
±
0.5% for the “A” grade part. If a tighter tolerance is needed,
a trim scheme is shown in Figure 13 that provides approxi-
mately
±
1% adjustment range of the regulation voltage
(V
REG
).
The LM3411 is guaranteed to drive a 15 mA load, but if more
current is needed, a NPN boost transistor can be added. The
circuit shown in Figure 14is a shunt regulator capable of pro-
viding excellent regulation over a very wide range of current.
Perhaps one of the simplest applications for the LM3411 is
the voltage detector circuit shown in Figure 15. The OUT pin
is low when the input voltage is less than V
. When the
V(IN) pin rises above V
, the OUT pin is pulled high by the
internal NPN output resistor.
Also an overvoltage detector, the crowbar circuit shown in
Figure 16 is normally located at the output of a power supply
to protect the load from an overvoltage condition should the
power supply fail with an input/output short.
DS011987-22
FIGURE 10. Precision Negative Voltage Regulator
DS011987-23
FIGURE 11. Precision Negative Voltage
Regulator with Accurate Current Limit
DS011987-24
FIGURE 12. 4.7V Power ON Detector with Hysteresis
DS011987-25
FIGURE 13.
±
50 mV External Trim
DS011987-26
FIGURE 14. 250 mA Shunt Regulator
DS011987-27
FIGURE 15. Voltage Detector
L
www.national.com
11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3411N-3.3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LM3411N-5.0 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM3414 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1A 60W Common Anode Capable Constant Current Buck LED Driver Requires No |
| LM3414HV | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1A 65V LED Driver Evaluation Board Switching frequency: 500 kHz |
| LM3414HVMR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1A 60W Common Anode Capable Constant Current Buck LED Driver Requires No |
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