Datasheet
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Absolute Maximum Ratings
(1)
Recommended Operating Conditions
NA556 , NE556 , SA556 , SE556
DUAL PRECISION TIMERS
SLFS023G – APRIL 1978 – REVISED JUNE 2006
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
CC
Supply voltage
(2)
18 V
V
I
Input voltage CONT, RESET, THRES, and TRIG V
CC
V
I
O
Output current ± 225 mA
D package 86
θ
JA
Package thermal impedance
(3) (4)
N package 80 ° C/W
NS package 76
θ
JC
Package thermal impedance
(5) (6)
J package 15.05 ° C/W
T
J
Operating virtual junction temperature 150 ° C
Lead temperature 1,6 mm (1/16 in) from case for 60 s J package 300 ° C
Lead temperature 1,6 mm (1/16 in) from case for 10 s D, N, or NS package 260 ° C
T
stg
Storage temperature range –65 150 ° C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) Maximum power dissipation is a function of T
J
(max), θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambient
temperature is P
D
= (T
J
(max) – T
A
)/ θ
JA
. Operating at the absolute maximum T
J
of 150 ° C can affect reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
(5) Maximum power dissipation is a function of T
J
(max), θ
JC
, and T
C
. The maximum allowable power dissipation at any allowable case
temperature is P
D
= (T
J
(max) – T
C
)/ θ
JC
. Operating at the absolute maximum T
J
of 150 ° C can affect reliability.
(6) The package thermal impedance is calculated in accordance with MIL-STD-883.
MIN MAX UNIT
NA556, NE556, SA556 4.5 16
V
CC
Supply voltage V
SE556 4.5 18
V
I
Input voltage CONT, RESET, THRES, and TRIG V
CC
V
I
O
Output current ± 200 mA
NA556 –40 105
NE556 0 70
T
A
Operating free-air temperature ° C
SA556 –40 85
SE556 –55 125
3
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