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IC555 Datasheet PDF : 14 Pages
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Electrical Characteristics
Values are at TA = 25°C, VCC = 5 ~ 15 V unless otherwise specified.
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
Supply Voltage
VCC
4.5
16.0
V
Supply Current (Low Stable) (1)
ICC
VCC = 5 V, RL = ∞
VCC = 15 V, RL = ∞
3
6
mA
7.5 15.0
mA
Timing Error (Monostable)
Initial Accuracy (2)
Drift with Temperature (3)
ACCUR
RA = 1 kΩ to100 kΩ
Δt / ΔT C = 0.1 μF
1.0 3.0
%
50
ppm / °C
Drift with Supply Voltage (3)
Δt / ΔVCC
0.1
0.5
%/V
Timing Error (Astable)
InItial Accuracy (2)
Drift with Temperature (3)
ACCUR
RA = 1 kΩ to 100kΩ
Δt / ΔT C = 0.1 μF
2.25
%
150
ppm / °C
Drift with Supply Voltage (3)
Δt / ΔVCC
0.3
%/V
Control Voltage
VC
VCC = 15 V
VCC = 5 V
9.0 10.0 11.0
V
2.60 3.33 4.00
V
Threshold Voltage
Threshold Current (4)
VTH
VCC = 15 V
VCC = 5V
ITH
10.0
V
3.33
V
0.10 0.25
μA
Trigger Voltage
VTR
VCC = 5 V
VCC = 15 V
1.10 1.67 2.20
V
4.5 5.0 5.6
V
Trigger Current
ITR
VTR = 0 V
0.01 2.00
μA
Reset Voltage
VRST
0.4 0.7 1.0
V
Reset Current
IRST
0.1 0.4
mA
Low Output Voltage
VOL
VCC = 15 V
ISINK = 10 mA
ISINK = 50 mA
0.06 0.25
V
0.30 0.75
V
VCC = 5 V, ISINK = 5 mA
0.05 0.35
V
High Output Voltage
VOH
VCC = 15 V
ISOURCE = 200
ISOURCE = 100
mA
mA
12.75
12.5
13.30
V
V
Rise Time of Output(3)
Fall Time of Output(3)
VCC = 5 V, ISOURCE = 100 mA 2.75 3.30
V
tR
100
ns
tF
100
ns
Discharge Leakage Current
ILKG
20 100
nA
Notes:
1. When the output is high, the supply current is typically 1 mA less than at VCC = 5 V.
2. Tested at VCC = 5.0 V and VCC = 15 V.
3. These parameters, although guaranteed, are not 100% tested in production.
4. This determines the maximum value of RA + RB for 15 V operation, the maximum total R = 20 MΩ, and for 5 V
operation, the maximum total R = 6.7 MΩ.
© 2002 Fairchild Semiconductor Corporation
LM555 Rev. 1.1.0
3
www.fairchildsemi.com
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