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Электронный компонент: SA555C

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Philips
Semiconductors
NE/SA/SE555/SE555C
Timer
Product data
Supersedes data of 1994 Aug 31
2003 Feb 14
INTEGRATED CIRCUITS
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2
2003 Feb 14
DESCRIPTION
The 555 monolithic timing circuit is a highly stable controller capable
of producing accurate time delays, or oscillation. In the time delay
mode of operation, the time is precisely controlled by one external
resistor and capacitor. For a stable operation as an oscillator, the
free running frequency and the duty cycle are both accurately
controlled with two external resistors and one capacitor. The circuit
may be triggered and reset on falling waveforms, and the output
structure can source or sink up to 200 mA.
FEATURES
Turn-off time less than 2
s
Max. operating frequency greater than 500 kHz
Timing from microseconds to hours
Operates in both astable and monostable modes
High output current
Adjustable duty cycle
TTL compatible
Temperature stability of 0.005% per
C
APPLICATIONS
Precision timing
Pulse generation
Sequential timing
Time delay generation
Pulse width modulation
PIN CONFIGURATION
1
2
3
4
5
6
7
8
GND
TRIGGER
OUTPUT
RESET
DISCHARGE
THRESHOLD
CONTROL VOLTAGE
VCC
D and N Packages
SL00349
Figure 1. Pin configuration
BLOCK DIAGRAM
COMPARATOR
COMPARATOR
FLIP FLOP
OUTPUT
STAGE
THRESHOLD
V
CC
6
7
3
1
4
2
5
8
R
R
R
CONTROL
VOLTAGE
TRIGGER
RESET
DISCHARGE
OUTPUT
GND
SL00350
Figure 2. Block Diagram
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
8-Pin Plastic Small Outline (SO) Package
0 to +70
C
NE555D
SOT96-1
8-Pin Plastic Dual In-Line Package (DIP)
0 to +70
C
NE555N
SOT97-1
8-Pin Plastic Small Outline (SO) Package
40
C to +85
C
SA555D
SOT96-1
8-Pin Plastic Dual In-Line Package (DIP)
40
C to +85
C
SA555N
SOT97-1
8-Pin Plastic Dual In-Line Package (DIP)
55
C to +125
C
SE555CN
SOT97-1
8-Pin Plastic Dual In-Line Package (DIP)
55
C to +125
C
SE555N
SOT97-1
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
3
EQUIVALENT SCHEMATIC
NOTE:
Pin numbers are for 8-Pin package
CONTROL VOLTAGE
FM
V
CC
R1
4.7 k
R2
330
R3
4.7 k
R4
1 k
R7
5 k
R12
6.8
k
Q21
Q9
Q8
Q7
Q6
Q5
Q1
Q2
Q3
Q4
Q19
Q22
R13
3.9 k
OUTPUT
Q23
C
B
R10
82 k
R5
10 k
Q10
Q11 Q12
Q13
Q20
R11
4.7 k
CB
Q18
E
R8
5 k
Q17
Q16
Q15
R6
100 k
R16
100
Q14
Q25
R9
5 k
R15
4.7 k
Q24
R14
220
THRESHOLD
TRIGGER
RESET
DISCHARGE
GND
SL00351
Figure 3. Equivalent schematic
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNIT
Supply voltage
V
CC
SE555
+18
V
NE555, SE555C, SA555
+16
V
P
D
Maximum allowable power dissipation
1
600
mW
Operating ambient temperature range
T
amb
NE555
0 to +70
C
T
amb
SA555
40 to +85
C
SE555, SE555C
55 to +125
C
T
stg
Storage temperature range
65 to +150
C
T
SOLD
Lead soldering temperature (10 sec max)
+230
C
NOTE:
1. The junction temperature must be kept below 125
C for the D package and below 150
C for the N package.
At ambient temperatures above 25
C, where this limit would be derated by the following factors:
D package 160
C/W
N package 100
C/W
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
4
DC AND AC ELECTRICAL CHARACTERISTICS
T
amb
= 25
C, V
CC
= +5 V to +15 V unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
SE555
NE555/SA555/SE555C
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min
Typ
Max
Min
Typ
Max
UNIT
V
CC
Supply voltage
4.5
18
4.5
16
V
I
CC
Supply current (low state)
1
V
CC
= 5 V, R
L
=
3
5
3
6
mA
I
CC
Su
ly current (low state)
V
CC
= 15 V, R
L
=
10
12
10
15
mA
Timing error (monostable)
R
A
= 2 k
to 100 k
t
M
Initial accuracy
2
C=0.1
F
0.5
2.0
1.0
3.0
%
t
M
/
T
Drift with temperature
30
100
50
150
ppm/
C
t
M
/
V
S
Drift with supply voltage
0.05
0.2
0.1
0.5
%/V
Timing error (astable)
R
A
, R
B
= 1 k
to 100 k
t
A
Initial accuracy
2
C = 0.1
F
4
6
5
13
%
t
A
/
T
Drift with temperature
V
CC
= 15 V
500
500
ppm/
C
t
A
/
V
S
Drift with supply voltage
0.15
0.6
0.3
1
%/V
V
C
Control voltage level
V
CC
= 15 V
9.6
10.0
10.4
9.0
10.0
11.0
V
V
C
Control voltage level
V
CC
= 5 V
2.9
3.33
3.8
2.6
3.33
4.0
V
V
TH
Threshold voltage
V
CC
= 15 V
9.4
10.0
10.6
8.8
10.0
11.2
V
V
TH
Threshold voltage
V
CC
= 5 V
2.7
3.33
4.0
2.4
3.33
4.2
V
I
TH
Threshold current
3
0.1
0.25
0.1
0.25
A
V
TRIG
Trigger voltage
V
CC
= 15 V
4.8
5.0
5.2
4.5
5.0
5.6
V
V
TRIG
Trigger voltage
V
CC
= 5 V
1.45
1.67
1.9
1.1
1.67
2.2
V
I
TRIG
Trigger current
V
TRIG
= 0 V
0.5
0.9
0.5
2.0
A
V
RESET
Reset voltage
4
V
CC
= 15 V, V
TH
= 10.5 V
0.3
1.0
0.3
1.0
V
I
RESET
Reset current
V
RESET
= 0.4 V
0.1
0.4
0.1
0.4
mA
I
RESET
Reset current
V
RESET
= 0 V
0.4
1.0
0.4
1.5
mA
V
CC
= 15 V
I
SINK
= 10 mA
0.1
0.15
0.1
0.25
V
I
SINK
= 50 mA
0.4
0.5
0.4
0.75
V
V
O
LOW level output voltage
I
SINK
= 100 mA
2.0
2.2
2.0
2.5
V
V
OL
LOW-level output voltage
I
SINK
= 200 mA
2.5
2.5
V
V
CC
= 5 V
I
SINK
= 8 mA
0.1
0.25
0.3
0.4
V
I
SINK
= 5 mA
0.05
0.2
0.25
0.35
V
V
CC
= 15 V
I
SOURCE
= 200 mA
12.5
12.5
V
V
OH
HIGH-level output voltage
I
SOURCE
= 100 mA
13.0
13.3
12.75
13.3
V
OH
g
V
CC
= 5 V
I
SOURCE
= 100 mA
3.0
3.3
2.75
3.3
V
t
OFF
Turn-off time
5
V
RESET
= V
CC
0.5
2.0
0.5
2.0
s
t
R
Rise time of output
100
200
100
300
ns
t
F
Fall time of output
100
200
100
300
ns
Discharge leakage current
20
100
20
100
nA
NOTES:
1. Supply current when output high typically 1 mA less.
2. Tested at V
CC
= 5 V and V
CC
= 15 V.
3. This will determine the max value of R
A
+R
B
, for 15 V operation, the max total R = 10 M
, and for 5 V operation, the max. total R = 3.4 M
.
4. Specified with trigger input HIGH.
5. Time measured from a positive-going input pulse from 0 to 0.8
V
CC
into the threshold to the drop from HIGH to LOW of the output. Trigger is
tied to threshold.
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
5
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Pulse Width
Required for Triggering
Supply Current
vs Supply Voltage
Low Output Voltage
vs Output Sink Current
Low Output Voltage
vs Output Sink Current
Low Output Voltage
vs Output Sink Current
Delay Time
vs Temperature
Delay Time
vs Supply Voltage
Propagation Delay vs Voltage
Level of Trigger Pulse
High Output Voltage Drop
vs Output Source Current
MINIMUM PULSE WIDTH (ns)
LOWEST VOLTAGE LEVEL OF TRIGGER PULSE
150
125
100
75
50
25
0
0
0.1
0.2
0.3
0.4 (
VCC)
55
C
0
C
+25
C
+70
C
+125
C
10.0
8.0
6.0
4.0
2.0
0
5.0
10.0
15.0
SUPPLY VOLTAGE VOLTS
SUPPL
Y

CURRENT
mA
1.015
1.010
1.005
1.000
0.995
0.990
0.985
-50
-25
0
+25 +50
+75 +100 +125
NORMALIZED DELA
Y

TIME
TEMPERATURE
C
10
1.0
0.1
0.001
1.0
2.0
5.0
10
20
50
100
10
1.0
0.1
0.01
1.0
2.0
5.0
10
20
50
100
10
1.0
0.1
0.01
1.0
2.0
5.0
10
20
50
100
1.0
2.0
5.0
10
20
50
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1.015
1.010
1.005
1.000
0.995
0.990
0.985
0
5
10
15
20
0
0.1
0.2
0.3
0.4
300
250
200
150
100
50
0
V VOL
TS
OUT
V VOL
TS
OUT
V VOL
TS
OUT
V VOL
TS
OUT
V
CC
NORMALIZED DELA
Y

TIME
PROP
AGA
TION
DELA
Y
ns
ISINK mA
ISINK mA
ISINK mA
ISOURCE mA
SUPPLY VOLTAGE V
LOWEST VOLTAGE LEVEL
OF TRIGGER PULSE
VCC
+125
C
+25
C
55
C
VCC = 5 V
VCC = 10 V
VCC = 15 V
55
C
+25
C
+25
C
55
C
+25
C
+25
C
+25
C
+25
C
55
C
55
C
55
C
+25
C
+25
C
55
C
+25
C
+125
C
5 V
VCC
15 V
55
C
0
C
+25
C
+70
C
+25
C
SL00352
Figure 4. Typical Performance Characteristics
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
6
TYPICAL APPLICATIONS
OUTPUT
FLIP
FLOP
COMP
COMP
f
+
1.49
(R
A
)
2R
B
)C
555 OR 1/2 556
DISCHARGE
CONTROL
VOLTAGE
THRESHOLD
TRIGGER
RESET
OUTPUT
R
R
C
R
B
R
A
R
5
6
2
4
3
8
7
0.01
F
V
CC
OUTPUT
FLIP
FLOP
COMP
COMP
555 OR 1/2 556
DISCHARGE
CONTROL
VOLTAGE
THRESHOLD
TRIGGER
RESET
OUTPUT
R
R
R
A
R
5
6
2
4
3
8
7
0.01
F
V
CC
T = 1.1RC
C
*
1
3
V
CC
|
t |
Astable Operation
Monostable Operation
SL00353
Figure 5. Typical Applications
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
7
TYPICAL APPLICATIONS
DURATION OF
TRIGGER PULSE AS
SEEN BY THE TIMER
V
CC
V
CC
10 k
2
555
0.001
F
1
SWITCH GROUNDED
AT THIS POINT
0
VOLTS
1/3 V
CC
V
CC
SL00354
Figure 6. AC Coupling of the Trigger Pulse
Trigger Pulse Width Requirements and Time
Delays
Due to the nature of the trigger circuitry, the timer will trigger on the
negative going edge of the input pulse. For the device to time out
properly, it is necessary that the trigger voltage level be returned to
some voltage greater than one third of the supply before the time out
period. This can be achieved by making either the trigger pulse
sufficiently short or by AC coupling into the trigger. By AC coupling
the trigger, see Figure 6, a short negative going pulse is achieved
when the trigger signal goes to ground. AC coupling is most
frequently used in conjunction with a switch or a signal that goes to
ground which initiates the timing cycle. Should the trigger be held
low, without AC coupling, for a longer duration than the timing cycle
the output will remain in a high state for the duration of the low
trigger signal, without regard to the threshold comparator state. This
is due to the predominance of Q
15
on the base of Q
16
, controlling
the state of the bi-stable flip-flop. When the trigger signal then
returns to a high level, the output will fall immediately. Thus, the
output signal will follow the trigger signal in this case.
Another consideration is the "turn-off time". This is the measurement
of the amount of time required after the threshold reaches 2/3 V
CC
to turn the output low. To explain further, Q
1
at the threshold input
turns on after reaching 2/3 V
CC
, which then turns on Q
5
, which turns
on Q
6
. Current from Q
6
turns on Q
16
which turns Q
17
off. This
allows current from Q
19
to turn on Q
20
and Q
24
to given an output
low. These steps cause the 2
s max. delay as stated in the data
sheet.
Also, a delay comparable to the turn-off time is the trigger release
time. When the trigger is low, Q
10
is on and turns on Q
11
which turns
on Q
15
. Q
15
turns off Q
16
and allows Q
17
to turn on. This turns off
current to Q
20
and Q
24
, which results in output high. When the
trigger is released, Q
10
and Q
11
shut off, Q
15
turns off, Q
16
turns on
and the circuit then follows the same path and time delay explained
as "turn off time". This trigger release time is very important in
designing the trigger pulse width so as not to interfere with the
output signal as explained previously.
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
8
SO8:
plastic small outline package; 8 leads; body width 3.9 mm
SOT96-1
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
9
DIP8:
plastic dual in-line package; 8 leads (300 mil)
SOT97-1
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
10
REVISION HISTORY
Rev
Date
Description
_2
20030214
Product data (9397 750 11129); ECN 853-0036 29156 of 06 November 2002.
Supersedes Product specification dated August 31, 1994.
Modifications:
Remove all cerdip information from the data sheet. Package type discontinued.
`Absolute maximum ratings' table: T
SOLD
rating changed from `+300
C' to `+230
C'.
19940831
Product specification; ECN 853-0036 13721 of 31 August 1994.
(Filename = NE_SA555X.pdf)
Philips Semiconductors
Product data
NE/SA/SE555/SE555C
Timer
2003 Feb 14
11
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no
representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree
to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes -- Philips Semiconductors reserves the right to make changes in the products--including circuits, standard cells, and/or software--described
or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated
via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys
no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent,
copyright, or mask work right infringement, unless otherwise specified.
Contact information
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Koninklijke Philips Electronics N.V. 2003
All rights reserved. Printed in U.S.A.
Date of release: 02-03
Document order number:
9397 750 11129
Philips
Semiconductors
Data sheet status
[1]
Objective data
Preliminary data
Product data
Product
status
[2] [3]
Development
Qualification
Production
Definitions
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
Data sheet status
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Level
I
II
III