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SLFS043F − SEPTEMBER 1983 − REVISED FEBRUARY 2005
TYPICAL CHARACTERISTICS
PROPAGATION DELAY TIMES TO DISCHARGE
OUTPUT FROM TRIGGER AND THRESHOLD
SHORTED TOGETHER
DISCHARGE SWITCH ON-STATE RESISTANCE
vs
vs
SUPPLY VOLTAGE
FREE-AIR TEMPERATURE
600
500
100
I
C
T
≥ 1 mA
70
O(on)
≈ 0
V
DD
= 2 V, I = 1 mA
O
L
= 25°C
A
40
V
= 5 V, I = 10 mA
O
DD
400
300
200
20
V
= 15 V, I = 100 mA
O
DD
10
7
t
PHL
4
†
t
PLH
100
0
2
1
−75 − 50 − 25
0
25
50
75 100 125
0
2
4
6
8
10 12 14 16 18 20
T
A
− Free-Air Temperature − °C
V
DD
− Supply Voltage − V
†
The effects of the load resistance on these values must be
taken into account separately.
Figure 1
Figure 2
APPLICATION INFORMATION
0.1 µF
t
c(L)
t
c(H)
R
R
A
B
V
DD
0.1 µF
5
8
t
PHL
CONT
V
DD
4
R
L
RESET
2/3 V
DD
TLC555
7
DISCH
Output
3
OUT
6
2
1/3 V
DD
THRES
TRIG
C
L
GND
GND
C
T
1
t
PLH
Pin numbers shown are for all packages except the
FK package.
TRIGGER AND THRESHOLD VOLTAGE WAVEFORM
CIRCUIT
Figure 3. Astable Operation
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
