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參數(shù)資料
| 型號(hào)： | MM54C221 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Dual CMOS Monostable Multivibrator(雙CMOS單穩(wěn)態(tài)多諧振蕩器) |
| 中文描述： | 雙通道CMOS單穩(wěn)態(tài)觸發(fā)器（雙的CMOS單穩(wěn)態(tài)多諧振蕩器） |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 229K |
| 代理商： | MM54C221 |
The minimum error can be obtained by operating at the
maximum V
. A price must be paid for this and this price is,
of course, increased power dissipation.
Figure 7 shows typical power dissipation vs V
operating
both sides of the one-shot at 50% duty cycle. Also shown in
the same figure is typical minimum pulse width vs V
. The
minimum pulse width is a strong function of internal propaga-
tion delays. It is obvious from these two curves that in creas-
ing V
beyond 10V will not appreciably improve inaccuracy
due to propagation delay but will greatly increase power dis-
sipation.
Accuracy is also a function of temperature. To determine the
magnitude of its effects the one-shot was tested at tempera-
ture with the external resistance and capacitance maintained
at 25C. The resulting variation is shown in Figure 8and Fig-
ure 9
Up to this point the external timing resistor, R
, has been
held fixed at 10 k
. In actual applications other values may
be necessary to achieve the desired pulse width. The ques-
tion then arises as to what effect this will have on accuracy.
AN006023-5
FIGURE 5. Typical Percentage Deviation from
V
CC
= 10V Value vs V
CC
(PW = 10 μs)
AN006023-6
FIGURE 6. Typical Percentage Deviation from
V
CC
= 10V Value vs V
CC
(PW = 1000 μs)
AN006023-7
FIGURE 7. Typical Minimum Pulse Width and Power
Dissipation vs V
CC
AN006023-8
FIGURE 8. Typical Pulse Width Error
vs Temperature (PW = 10 μs)
AN006023-9
FIGURE 9. Typical Pulse Width Error
vs Temperature (PW = 1000 μs)
www.fairchildsemi.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM54C221 WAF | 制造商:Texas Instruments 功能描述: |
| MM54C221J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Monostable Multivibrator |
| MM54C221J/883 | 制造商:National Semiconductor Corporation 功能描述:Monostable Multivibrator Dual |
| MM54C221N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Monostable Multivibrator |
| MM54C221W/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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