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參數資料
| 型號： | LM3909 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | LM3909 LED Flasher/Oscillator |
| 中文描述： | LM3909的LED閃光器/振蕩器 |
| 文件頁數： | 3/8頁 |
| 文件大小： | 149K |
| 代理商： | LM3909 |
Typical Applications
(Continued)(See applications notes below)
Warning Flasher High Voltage Powered
TL/H/7969–4
Typical Operating Conditions
V
a
Nominal
Flash Hz
C
T
R
S
R
FB
V
a
RANGE
6V
15V
2
2
400
m
F
180
m
F
1k
3.9k
43k
1W
1.5k
1k
5V–25V
13V–50V
100V
1.7
180
m
F
1k
85V–200V
1.5V Flasher
TL/H/7969–5
Note:
Nominal flash rate: 1 Hz.
TL/H/7969–6
Estimated Battery Life
(Continuous 1.5V Flasher Operation)
Size Cell
Type
Standard
Alkaline
AA
C
D
3 months
7 months
1.3 years
6 months
15 months
2.6 years
Note:
Estimates are made from our tests and manufacturers
data. Conditions are fresh batteries and room temperature. Clad
or ‘‘leak-proof’’ batteries are recommended for any application
of five months or more. Nickel Cadmium cells are not recom-
mended.
APPLICATIONS NOTES
Note 1:
All capacitors shown are electrolytic unless marked otherwise.
Note 2:
Flash rates and frequencies assume a
g
5% capacitor tolerance. Electrolytics may vary
b
20% to
a
100% of their stated value.
Note 3:
Unless noted, measurements above are made with a 1.4V supply, a 25
§
C ambient temperature, and an LED with a forward drop of 1.5V to 1.7V at 1 mA
forward current.
Note 4:
Occasionally a flasher circuit will fail to oscillate due to an LED defect that may be missed because it only reduces light output 10% or so. Such LEDs can
be identified by a large increase in conduction between 0.9V and 1.2V.
3
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相關代理商/技術參數 |
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|---|---|
| LM3909N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM3909 LED Flasher/Oscillator |
| LM390N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM390 1W Battery Operated Audio Power Amplifier |
| LM390N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Audio Amplifier |
| LM390Z | 制造商:SEOUL 制造商全稱:Seoul Semiconductor 功能描述:GREEN OVAL LAMP LED |
| LM391 | 制造商:SEOUL 制造商全稱:Seoul Semiconductor 功能描述:BLUE OVAL LAMP LED |
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