參數(shù)資料
型號(hào)： TS555MN
廠商： STMICROELECTRONICS
元件分類： 模擬波形發(fā)生器
英文描述： PULSE; RECTANGULAR, 2 MHz, TIMER, PDIP8
封裝： PLASTIC, DIP-8
文件頁(yè)數(shù)： 5/20頁(yè)
文件大?。?/td> 232K
代理商： TS555MN
TS555
Application information
13/20
4.2
Astable operation
When the circuit is connected as shown in Figure 6 (pins 2 and 6 connected) it triggers itself
and runs as a multi-vibrator. The external capacitor charges through RA and RB and
discharges through RB only. Therefore, the duty cycle may be precisely set by the ratio of
these two resistors.
In the astable mode of operation, C charges and discharges between 1/3 VCC and 2/3 VCC.
As in the triggered mode, the charge and discharge times, and therefore frequency, are
independent of the supply voltage.
Figure 6.
Application schematic
Figure 7 shows actual waveforms generated in this mode of operation.
The charge time (output HIGH) is given by:
t1 = 0.693 (RA + RB) C
The discharge time (output LOW) by:
t2 = 0.693 x RB x C
Thus the total period T is given by:
T = t1 + t2 = 0.693 (RA + 2RB) C
The frequency of oscillation is then:
The duty cycle is given by:
Figure 7.
Timing diagram
VCC
Reset
Out
3
4
8
7
5
1
TS555
R
C
2
6
R
A
B
Control
Voltage
0.01 F
μ
f =
1
T
--- =
1.44
(RA
2RB
)C
+
--------------------------------------
D =
RB
RA
2RB
+
---------------------------
Ω
μ
t = 0.5 ms / div
OUTPUT VOLTAGE = 5.0V/div
CAPACITOR VOLTAGE = 1.0V/div
L
R = R = 4.8 k , C = 0.1 F , R = 1.0k
AB
相關(guān)PDF資料
PDF描述
TC54VC2502ECBTR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC54VC3102EZBRT 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3
TC54VC3801ECBRT 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC54VC3902ECBRT 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC54VC4402ECBRT 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS555MP 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER SINGLE CMOS TIMERS
TS555MPT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low power single CMOS timer
TS556 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER DUAL CMOS TIMER
TS556_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low-power dual CMOS timer
TS556C 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER DUAL CMOS TIMER
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*