LM555JAN.pdf

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LM555JAN Timer
July 2006
LM555JAN
Timer
General Description
The LM555 is a highly stable device for generating accurate
time delays or oscillation. Additional terminals are provided
for triggering or resetting if desired. In the time delay mode of
operation, the time is precisely controlled by one external
resistor and capacitor. For astable operation as an oscillator,
the free running frequency and duty cycle are accurately
controlled with two external resistors and one capacitor. The
circuit may be triggered and reset on falling waveforms, and
the output circuit can source or sink up to 200mA or drive
TTL circuits.
n Adjustable duty cycle
n Output can source or sink 200 mA
n Output and supply TTL compatible
n Temperature stability better than 0.005% per ˚C
n Normally on and normally off output
Applications
n Precision timing
n Pulse generation
n Sequential timing
n Time delay generation
n Pulse width modulation
n Pulse position modulation
n Linear ramp generator
Features
n Direct replacement for SE555/NE555
n Timing from microseconds through hours
n Operates in both astable and monostable modes
Ordering Information
NS Part Number
JAN Part Number
NS Package Number
Package Description
JL555SPA
JM38510/10901SPA
J08A
8LD Ceramic Dip
JL555SGA
JM38510/10901SGA
H08A
8LD Metal Can
Connection Diagrams
Dual-In-Line Package
Metal Can Package
20153733
Top View
20153703
Top View
© 2006 National Semiconductor Corporation DS201537
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Schematic Diagram
20153701
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Absolute Maximum Ratings (Note 1)
Supply Voltage
+18V
Discharge Current
+200mA
Output Sink Current
+200mA
Output Source Current
−200mA
Power Dissipation (Note 2)
Metal Can
300mW @ +125˚C
CERDIP
370mW @ +125˚C
Operating Temperature Range
−55˚C
≤
T A ≤
+125˚C
Maximum Junction Temperature (T Jmax)
+175˚C
Storage Temperature Range
−65˚C
≤
T A ≤
+150˚C
Soldering Information (Soldering 10 Seconds)
300˚C
Thermal Resistance
θ
JA
CERDIP Still Air
123˚C/W
CERDIP 500LF / Min Air Flow
69˚C/W
Metal Can Still Air
171˚C/W
Metal Can 500LF / Min Air Flow
92˚C/W
θ
JC
CERDIP
18˚C/W
Metal Can
41˚C/W
ESD Tolerance (Note 3)
1KV
Recommended Operating Conditions
Supply Voltage Range
+4.5V to +16V DC
Quality Conformance Inspection
Mil-Std-883, Method 5005 - Group A
Subgroup
Description
Temp ˚C
1
Static tests at
25
2
Static tests at
125
3
Static tests at
-55
4
Dynamic tests at
25
5
Dynamic tests at
125
6
Dynamic tests at
-55
7
Functional tests at
25
8A
Functional tests at
125
8B
Functional tests at
-55
9
Switching tests at
25
10
Switching tests at
125
11
Switching tests at
-55
12
Settling time at
25
13
Settling time at
125
14
Settling time at
-55
3
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Electrical Characteristics
DC Parameters
Symbol
Parameter
Conditions
Notes Min Max Unit
Sub-
groups
I CC
Power Supply Current
V CC = 4.5V
5.0 mA
1, 2, 3
V CC = 16.5V
20 mA
1, 2, 3
V Trig
Trigger Voltage
V CC = 4.5V
1.3 1.8
V
1
1.3 2.1
V
2
1.15 1.8
V
3
V CC = 16.5V
5.2 5.8
V
1
5.2 6.1
V
2
5.0 5.8
V
3
I Trig
Trigger Current
V CC = 16.5V
-5.0
µA
1, 2, 3
V Th
Threshold Voltage
V CC = 4.5V
2.7 3.3
V
1
2.6 3.4
V
2, 3
V CC = 16.5V
10.7 11.3 V
1
10.6 11.4 V
2, 3
I Th
Threshold Current
V CC = 16.5V
250
nA
1, 2
2,500 nA
3
V OL
Logical "0" Output Voltage V CC = 4.5V, I Sink = 5mA
0.25 V
1
0.35 V
2, 3
V CC = 4.5V, I Sink = 50mA
2.2
V
1, 2
2.6
V
3
V CC = 16.5V, I Sink = 10mA
0.15 V
1, 3
0.25 V
2
V CC = 16.5V, I Sink = 50mA
0.5
V
1, 3
0.7
V
2
V CC = 16.5V, I Sink = 100mA
2.2
V
1
2.8
V
2, 3
V OH
Logical "1" Output Voltage V CC = 4.5V, I Source = -100mA
2.6
V
1, 2
2.2
V
3
V CC = 16.5V, I Source = -100mA
14.6
V
1, 2
14
V
3
I CEX
Discharge Transistor Leakage
Current
V CC = 16.5V
100
nA
1, 3
3,000 nA
2
V Sat
Discharge Transistor Saturation
Voltage
V CC = 16.5V
0.8
V
1, 3
1.0
V
2
V R
Reset Voltage
V CC = 16.5V
(Note 4),
(Note 5)
0.1 1.3
V
1, 2, 3
I R
Reset Current
V CC = 16.5V
-1.6
mA
1, 2, 3
AC Parameters
Symbol
Parameter
Conditions
Notes Min Max Unit
Sub-
groups
t PLH
Propagation Delay Time
V CC = 4.5V
800
nS
9, 11
900
nS
10
V CC = 16.5V
800
nS
9, 11
900
nS
10
t PHL
Propagation Delay Time
V CC = 4.5V
12
µS 9, 10, 11
V CC = 16.5V
12
µS 9, 10, 11
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Electrical Characteristics (Continued)
AC Parameters (Continued)
Symbol
Parameter
Conditions
Notes Min Max Unit
Sub-
groups
t TLH
Transition Time
V CC = 4.5V
300
nS 9, 10, 11
V CC = 16.5V
300
nS 9, 10, 11
t THL
Transition Time
V CC = 4.5V
300
nS 9, 10, 11
V CC = 16.5V
300
nS 9, 10, 11
t DOH
Time Delay Output High
R T =1K
V CC = 4.5V
106.7 113.3 µS 9, 10, 11
Ω
V CC = 16.5V
106.7 113.3 µS 9, 10, 11
Time Delay Output High
R T = 100K
V CC = 4.5V
10.67 11.33 mS 9, 10, 11
Ω
V CC = 16.5V
10.67 11.33 mS 9, 10, 11
∆ t D / ∆ V CC Drift In Time Delay
∆ V CC = 12,
V CC = 4.5V to 16.5V
(Note 6) -220 220 nS/V
9
∆ t D / ∆ T Temperature Coefficient of
Time Delay
V CC = 16.5V
-11 11 nS/˚C 10, 11
t Ch
Capacitor Charge Time
R T =1K
V CC = 4.5V
120 156
µS 9, 10, 11
Ω
V CC = 16.5V
120 156
µS 9, 10, 11
Capacitor Charge Time
R T = 100K
V CC = 4.5V
11.3 15 mS 9, 10, 11
Ω
V CC = 16.5V
11.3 15 mS 9, 10, 11
t Dis
Capacitor Discharge Time
R T =1K Ω
V CC = 4.5V
57.5 80
µS 9, 10, 11
V CC = 16.5V
57.5 80
µS 9, 10, 11
Capacitor Discharge Time
R T = 100K
V CC = 4.5V
5.4 7.7 mS 9, 10, 11
Ω
V CC = 16.5V
5.4 7.7 mS 9, 10, 11
∆
t Ch /
Drift In Capacitor Charge Time
V CC = 12,
V CC = 4.5V to 16.5V
-820 820 nS/V
9
∆
V CC
∆
t Ch /
∆
T Temperature Coefficient
Capacitor Charge Time
V CC = 16.5V
(Note 6)
-68 68 nS/˚C 10, 11
t Res
Reset Time
V CC = 16.5V
1.5
µS
9, 11
2.0
µS
10
DC Drift Parameters
Delta calculations performed on JAN S devices at Group B, Subgroup 5, only.
Symbol
Parameter
Conditions
Notes Min Max Unit
Sub-
groups
V Trig
Trigger Voltage
V CC = 16.5V
-0.05 0.05 V
1
V Th
Threshold Voltage
V CC = 16.5V
-0.05 0.05 V
1
V OL
Logical "0" Output Voltage V CC = 16.5V, I Sink = 10mA
-0.05 0.05 V
1
I CEX
Discharge Transistor Leakage
Current
V CC = 16.5V
-50 50
nA
1
Note 1: 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 guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by T Jmax (maximum junction temperature),
θ
JA
or the number given in the Absolute Maximum Ratings, whichever is lower.
Note 3: Human body model, 1.5K
in series with 100pF.
Note 4: Parameter tested go-no-go, only.
Note 5: Datalog reading of 0.7V will reflect the Reset Voltage levels passing and a reading of 0.5V or 1.5V reflects the Reset voltage levels failing the low level or
high level respectfully.
Note 6: Calculated parameter.
Ω
5
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∆
θ JA (package
junction to ambient thermal resistance), and T A (ambient temperature). The maximum allowable power dissipation at any temperature is P Dmax =(T Jmax -T A )/
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