TLC555_16 Datasheet, PDF (9/25 Pages) Texas Instruments – LinCMOSE TIMERS

TLC555
LinCMOS TIMER
SLFS043F − SEPTEMBER 1983 − REVISED FEBRUARY 2005
TYPICAL CHARACTERISTICS
DISCHARGE SWITCH ON-STATE RESISTANCE
vs
FREE-AIR TEMPERATURE
100
70
VDD = 2 V, IO = 1 mA
40
PROPAGATION DELAY TIMES TO DISCHARGE
OUTPUT FROM TRIGGER AND THRESHOLD
SHORTED TOGETHER
vs
SUPPLY VOLTAGE
600
IO(on) ≥ 1 mA
CL ≈ 0
500
TA = 25°C
20
VDD = 5 V, IO = 10 mA
400
VDD = 15 V, IO = 100 mA
10
300
7
200
4
100
2
tPHL
tPLH†
1
−75 − 50 − 25 0 25 50 75 100 125
TA − Free-Air Temperature − °C
Figure 1
0
0 2 4 6 8 10 12 14 16 18 20
VDD − Supply Voltage − V
† _{The effects of the load resistance on these values must be}
taken into account separately.
Figure 2
APPLICATION INFORMATION
0.1 µF
RA
0.1 µF
5
8
VDD
RB
CT
CONT
4 _RESET
VDD
RL
2/3 VDD
7
TLC555
DISCH
3 ^Output
6
THRES
OUT
CL ^{1/3 VDD}
2 _TRIG
GND
1
GND
tc(H)
tPHL
tc(L)
tPLH
Pin numbers shown are for all packages except the
FK package.
CIRCUIT
TRIGGER AND THRESHOLD VOLTAGE WAVEFORM
Figure 3. Astable Operation
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