LM555
Electrical Characteristics
(Notes 1, 2)
Parameter
(Continued)
(T
A
= 25˚C, V
CC
= +5V to +15V, unless othewise specified)
Conditions
Min
Output Voltage Drop (Low)
V
CC
= 15V
I
SINK
= 10mA
I
SINK
= 50mA
I
SINK
= 100mA
I
SINK
= 200mA
V
CC
= 5V
I
SINK
= 8mA
I
SINK
= 5mA
Output Voltage Drop (High)
I
SOURCE
= 200mA, V
CC
= 15V
I
SOURCE
= 100mA, V
CC
= 15V
V
CC
= 5V
Rise Time of Output
Fall Time of Output
Note 1:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 3:
For operating at elevated temperatures the device must be derated above 25˚C based on a +150˚C maximum junction temperature and a thermal resistance
of 106˚C/W (DIP), 170˚C/W (S0-8), and 204˚C/W (MSOP) junction to ambient.
Note 4:
Supply current when output high typically 1 mA less at V
CC
= 5V.
Note 5:
Tested at V
CC
= 5V and V
CC
= 15V.
Note 6:
This will determine the maximum value of R
A
+ R
B
for 15V operation. The maximum total (R
A
+ R
B
) is 20MΩ.
Note 7:
No protection against excessive pin 7 current is necessary providing the package dissipation rating will not be exceeded.
Note 8:
Refer to RETS555X drawing of military LM555H and LM555J versions for specifications.
Limits
LM555C
Typ
0.1
0.4
2
2.5
Max
0.25
0.75
2.5
Units
V
V
V
V
V
0.25
12.5
12.75
2.75
13.3
3.3
100
100
0.35
V
V
V
V
ns
ns
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