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參數(shù)資料
| 型號： | TS3V556 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3V LOW POWER DUAL TIMERS |
| 中文描述： | 3V的低功耗雙定時器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 63K |
| 代理商： | TS3V556 |
TS3V556
6/8
V
CC
Reset
Out
R
C
R
A
B
Control
Voltage
0.01 F
TS3V556
Figure 4
t = 0.5 ms / div
OUTPUT VOLTAGE = 5.0V/div
CAPACITOR VOLTAGE = 1.0V/div
RA
B
L
Figure 5
ASTABLE OPERATION
When the circuit is connected as shown in
figure 4 , it triggers itself and free runs as a
multivibrator. The external capacitor charges
throughR
A
andR
B
and dischargesthroughR
B
only.
Thus theduty cycle may beprecisely set by the ra-
tio of these two resistors.
In the astable mode of operation, C charges and
dischargesbetween 1/3V
CC
and 2/3V
CC
.As inthe
triggered mode, the charge and discharge times
and therefore frequency, are independent of the
supply voltage.
Figure5 shows actualwaveforms generated inthis
mode of operation.
The charge time (output HIGH) is given by :
t1 = 0.693 (R
A
+ R
B
) C
and the discharge time (output LOW) by :
t2 = 0.693 (R
B
) C
Thus the total period T is given by :
T = t1 + t2 = 0.693 (R
A
+ 2R
B
) C
The frequency of oscillation is then :
f
T
R
R )C
+
2
(
A
=
=
1
144
.
The duty cycle is given by :D
R
+
R
R
=
B
A
B
2
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| TS3V556I | 3V LOW POWER DUAL TIMERS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS3V556AID | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Timer Circuit |
| TS3V556AIN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Timer Circuit |
| TS3V556I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3V LOW POWER DUAL TIMERS |
| TS3V556ID | 功能描述:計時器和支持產(chǎn)品 USE 511-TS556ID RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| TS3V556IDT | 制造商:STMicroelectronics 功能描述:STD TIMER DUAL 14SOIC - Tape and Reel |
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