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參數(shù)資料
| 型號： | TS3V556IDT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬波形發(fā)生器 |
| 英文描述： | DUAL PULSE; RECTANGULAR, 2 MHz, TIMER, PDSO14 |
| 封裝： | MICRO, PLASTIC, SO-14 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 104K |
| 代理商： | TS3V556IDT |
TS3V556
6/8
Do
no
t u
se
for
new
design
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 through RA and
RB and discharges through RB only. Thus 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 4 :
Figure 5 shows actual waveforms generated in
this mode of operation.
The charge time (output HIGH) is given by :
t1 = 0.693 (RA + RB) C
and the discharge time (output LOW) by :
t2 = 0.693 (RB) 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 5 :
VCC
Reset
Out
R
C
R
A
B
Control
Voltage
0.01 F
TS3V556
f =
1
T
--- =
1.44
(
RA
2
RB
)C
+
--------------------------------------
D =
RB
RA
2
RB
+
---------------------------
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
Do
no
t u
se
for
new
design
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS3V556IN | 功能描述:計時器和支持產(chǎn)品 USE 511-TS556IN 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 |
| TS3V712E | 制造商:TI 制造商全稱:Texas Instruments 功能描述:7-CHANNEL VIDEO SWITCH |
| TS3V712E_1002 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:7-CHANNEL VIDEO SWITCH |
| TS3V712EL | 制造商:TI 制造商全稱:Texas Instruments 功能描述:7-CHANNEL VIDEO SWITCH WITH INTEGRATED LEVEL SHIFTERS |
| TS3V712ELRTGR | 功能描述:視頻開關(guān) IC 7Ch1:2 Video Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
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