參數(shù)資料
型號(hào)： TLC556CDG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬波形發(fā)生器
英文描述： DUAL PULSE; RECTANGULAR, 1.2 MHz, TIMER, PDSO14
封裝： GREEN, PLASTIC, MS-012AB, SOIC-14
文件頁(yè)數(shù)： 2/21頁(yè)
文件大?。?/td> 609K
代理商： TLC556CDG4
TLC556, TLC556Y
DUAL LinCMOS
TIMERS
SLFS047B – FEBRUARY 1984 – REVISED SEPTEMBER 1997
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
0.1
F
0.1
F
CT
CL
RL
Output
RB
RA
GND
TRIG
THRES
RESET
DISCH
CONT
VDD
OUT
VDD
2/3 VDD
1/3 VDD
GND
tPHL
tPLH
tH
tL
CIRCUIT
TRIGGER AND THRESHOLD VOLTAGE WAVEFORM
TLC556
Figure 3. Astable Operation
Connecting the trigger input to the threshold input, as shown in Figure 3, causes the timer to run as a
multivibrator. The capacitor CT charges through RA and RB to the threshold voltage level (approximately 0.67
VDD) and then discharges through RB only to the value of the trigger voltage level (approximately 0.33 VDD).
The output is high during the charging cycle (tH) and low during the discharge cycle (tL). The duty cycle is
controlled by the values of RA, and RB, and CT, as shown in the equations below.
tH [ CT (RA ) RB) In 2 (In 2 + 0.693)
tL [ CT RB In 2
Period
+ t
H ) tL [ CT (RA ) 2RB)In 2
Output driver duty cycle
+
tL
tH ) tL
[ 1 *
RB
R
A )
2RB
Output waveform duty cycle
+
tH
tH ) tL
[
RB
R
A )
2RB
The 0.1-
F capacitor at CONT in Figure 3 decreases the period by about 10%.
The formulas shown above do not allow for any propagation delay from the trigger and threshold inputs to the
discharge output. These delay times add directly to the period and create differences between calculated and
actual values that increase with frequency. In addition, the discharge output resistance ron adds to RB to provide
another source of error in the calculation when RB is very low or ron is very high.
The equations below provide better agreement with measured values.
tH + CT (RA ) RB)In
3
* exp
* t
PLH
CT (RB ) ron)
) t
PHL
tL + CT (RB ) ron)In
3
* exp
* t
PHL
CT (RA ) RB)
) t
PLH
相關(guān)PDF資料
PDF描述
5962-89621012A OP-AMP, 10000 uV OFFSET-MAX, 40 MHz BAND WIDTH, CQCC20
5962-8962101VPA OP-AMP, 10000 uV OFFSET-MAX, 40 MHz BAND WIDTH, CDIP8
5962-8962101VXA OP-AMP, 10000 uV OFFSET-MAX, 40 MHz BAND WIDTH, CDSO10
5962-8962401VPA OP-AMP, 6000 uV OFFSET-MAX, 175 MHz BAND WIDTH, CDIP8
5962-8962401VXA OP-AMP, 6000 uV OFFSET-MAX, 175 MHz BAND WIDTH, CDSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC556CDR 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Dual CMOS RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)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
TLC556CDRG4 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Dual CMOS RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)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
TLC556CN 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Dual CMOS RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)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
TLC556CN 制造商:Texas Instruments 功能描述:IC TIMER CMOS DIP14 556
TLC556CN 制造商:Texas Instruments 功能描述:DUAL LINCMOS TIMER/LINEAR
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

*
*
*