LMC555
SNAS558J –FEBRUARY 2000–REVISED MARCH 2013
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Electrical Characteristics(1) (2)
Test Circuit, T = 25°C, all switches open, RESET to VS unless otherwise noted
Units
(Limits)
Parameter
Test Conditions
Min
Typ
Max
IS
Supply Current
VS = 1.5V
VS = 5V
VS = 12V
50
100
150
150
250
400
µA
VCTRL
Control Voltage
VS = 1.5V
VS = 5V
VS = 12V
0.8
2.9
7.4
1.0
3.3
8.0
1.2
3.8
8.6
V
mV
V
VDIS
VOL
Discharge Saturation Voltage
Output Voltage (Low)
VS = 1.5V, IDIS = 1 mA
VS = 5V, IDIS = 10 mA
75
150
150
300
VS = 1.5V, IO = 1 mA
VS = 5V, IO = 8 mA
VS = 12V, IO = 50 mA
0.2
0.3
1.0
0.4
0.6
2.0
VOH
Output Voltage
(High)
VS = 1.5V, IO = −0.25 mA
VS = 5V, IO = −2 mA
1.0
4.4
1.25
4.7
V
VS = 12V, IO = −10 mA
10.5
11.3
VTRIG
Trigger Voltage
VS = 1.5V
VS = 12V
0.4
3.7
0.5
4.0
0.6
4.3
V
pA
V
ITRIG
VRES
Trigger Current
Reset Voltage
VS = 5V
10
(3)
VS = 1.5V
0.4
0.4
0.7
0.75
1.0
1.1
VS = 12V
VS = 5V
VS = 5V
VS = 12V
IRES
ITHRESH
IDIS
Reset Current
10
10
pA
pA
nA
Threshold Current
Discharge Leakage
Timing Accuracy
1.0
100
t
SW 2, 4 Closed
VS = 1.5V
VS = 5V
0.9
1.0
1.0
1.1
1.1
1.1
1.25
1.20
1.25
ms
VS = 12V
Δt/ΔVS
Δt/ΔT
fA
Timing Shift with Supply
VS = 5V ± 1V
0.3
75
%/V
ppm/°C
kHz
Timing Shift with Temperature VS = 5V
Astable Frequency
SW 1, 3 Closed, VS = 12V
4.0
4.8
3.0
15
5.6
fMAX
tR, tF
Maximum Frequency
Max. Freq. Test Circuit, VS = 5V
MHz
ns
Output Rise and
Fall Times
Max. Freq. Test Circuit
VS = 5V, CL = 10 pF
tPD
Trigger Propagation Delay
VS = 5V, Measure Delay
from Trigger to Output
100
ns
(1) All voltages are measured with respect to the ground pin, unless otherwise specified.
(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3) If the RESET pin is to be used at temperatures of −20°C and below VS is required to be 2.0V or greater.
4
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