參數(shù)資料
型號: TLC555Q
廠商: Texas Instruments, Inc.
英文描述: Socket Adapter for CY23FP12
中文描述: LinCMOS⑩定時器
文件頁數(shù): 10/13頁
文件大?。?/td> 190K
代理商: TLC555Q
www.ti.com
tc(H)
CT(RA
RB) In
3 –exp
–tPLH
CT(RB
ron)
tPHL
tc(L)
CT(RB
ron) In
3 –exp
–tPHL
CT(RA
RB)
tPLH
can be substituted with good results. Duty cycles less than 50%
possibly R
A
r
on
. These conditions can be difficult to obtain.
In monostable applications, the trip point on TRIG can be set by a voltage applied to CONT. An input voltage
between 10% and 80% of the supply voltage from a resistor divider with at least 500-
μ
A bias provides good
results.
tc(H)
tc(H)
tc(L)
require that
tc(H)
tc(L)
< 1 and
TLC555-Q1
LinCMOS TIMER
SLFS078–OCTOBER 2006
APPLICATION INFORMATION (continued)
The following equations provide better agreement with measured values.
These equations and those given previously are similar in that a time constant is multiplied by the logarithm of a
number or function. The limit values of the logarithmic terms must be between In 2 at low frequencies and In 3
at extremely high frequencies. For a duty cycle close to 50%, an appropriate constant for the logarithmic terms
10
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