Single Timer. UA555 Datasheet

UA555 Timer. Datasheet pdf. Equivalent

Part UA555
Description Single Timer
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Manufacture Fairchild Semiconductor
Datasheet
Download UA555 Datasheet



UA555
~A555
SINGLE TIMING CIRCUIT
FAIRCHILD LINEAR INTEGRATED CIRCUIT
GENERAL DESCRIPTION - The I'A555 Timing Circuit is a very stable controller for producing
accurate time delays or oscillations. In the time delay mode, the delay time is precisely controlled by
one external resistor and one capacitor; in the oscillator mode, the frequency and duty cycle are both
accurately controlled with two external resistors and one capacitor. By applying a trigger signal, the
timing cycle is started and an internal flip-flop is set, immunizing the circuit from any further trigger
signals. To interrupt the timing cycle a reset signal is applied ending the time-out.
The output, which is capable of sinking or sourcing 200 mA, is compatible with TTL circuits and can
drive relays or indicator lamps.
• MICROSECONDS THROUGH HOURS TIMING CONTROL
• ASTABLE OR MONOSTABLE OPERATING MODES
• ADJUSTABLE DUTY CYCLE
• 200 mA SINK OR SOURCE OUTPUT CURRENT CAPABILITY
• TTL OUTPUT DRIVE CAPABILITY
• TEMPERATURE STABILITY OF 0.005% PER °c
• NORMALLY ON OR NORMALLY OFF OUTPUT
• DIRECT REPLACEMENT FOR SE555/NE555
CONNECTION DIAGRAMS
. 8-PIN MINI DIP
(TOP VIEW)
PACKAGE OUTLINE 9T
GND
TRIGGER
OUT
RESET
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
+18 V
Power Dissipation (Note 1)
600mW
Operating Temperature Ranges
I'A555TC/HC
O°C to +70°C
I'A555HM
_55°C to +125°C
Storage Temperature Range
-65°C to +150°C
'Pin Temperature
Plastic Mini DIP(9T) (Soldering, 10 s)
260°C
Metal Can (5T) (Soldering, 60 s)
300°C
BLOCK DIAGRAM
- - - - - - 1vcc--o--....-
ORDER INFORMATION
TYPE
PART NO.
IlA555
I'A555TC
8-PIN To-l00
(TOP VIEW)
PACKAGE OUTLINE 5T
+Vcc
TH AESHO LD --o----1---i
CONTROL --0--4--1
VOLTAGE
TRIGGER --0---1----1
.-----<>-- DISCHARGE
FlIp·FLOP
SQ
INHIBIT!
RESET
'--o!D-----<r-- OUTPUT
RESET~- )---~ ~---<-
-_-_-_-_-' _ _ _ _
RESET
ORDER INFORMATION
TYPE
PART NO.
IlA555
I'A555HM
I'A555
I'A555HC
7-3



UA555
FAIRCHILD. p.A555
ELECTRICAL CHARACTERISTICS: T A= 25°C, VCC= +5.0 V to +15 V, unless otherwise specified
CHARACTERISTICS
Supply Voltage
TEST CONDITIONS
MIN
4.5
/LA555HM
TYP
MAX
18
Supply Current
VCC=5.0V,RL=~
VCC=15V,RL=~
LOW State (Note 1)·
3.0 5.0
10 12
/LA555TC/HC
MIN
TYP
MAX
4.5 16
3.0 6.0
UNITS
V
mA
10 15 mA
Timing Error
Initial. Accuracy
Drift with Temperature
Drift with Supply Voltage
Threshold Voltage
Trigger Voltage
Trigger Current
Reset Voltage
Reset Current
Threshold Current
Control Voltage Level
Output Voltage Drop (LOW)
Output Voltage Drop (HIGH)
Rise Time of Output
Fall Time of Output
RA, RS = 1 kn to 100 kn
C = O.l/LF (Note 2)
VCC=15V
VCC=5.0V
Note 3
VCC-15V
VCC = 5.0V
VCC-15V
ISINK = 10mA
ISINK = 50 mA
ISINK = 100 mA
ISINK = 200 mA
VCC=5.0V
ISINK = 8.0 mA
ISINK = 5.0 mA
ISOURCE = 200 mA
VCC=15V
ISOURCE = 100 mA
VCC=15V
VCC = 5.0 V
4.8
1045
004
9.6
2.9
0.5
30
0.05
2/3
5.0
1.67
0.5
0.7
0.1
0.1
10
3.33
2.0
100
0.2
5.2
1.9
1.0
0.25
lOA
3.8
1.0
50
0.1
2/3
5.0
1.67
0.5
004 0.7
0.1
0.1
9.0 10
2.6 3.33
1.0
0.25
11
4.0
%
ppmfC
%V
X VCC
V
V
/LA
V
mA
/LA
V
V
0.1 0.15
0.4 0.5
2.0 2.2
2.5
0.1 0.25
004 0.75
2.0 2.5
2.5
V
V
V
V
0.1 0.25
12.5
0.25
12.5
0.35
V
V
V
13 13.3
3.0 3.3
100
100
12.75
2.75
13.3
3.3
100
100
V
V
ns
ns
NOTES:
1. Supply Current is typically 1.0 rnA less when output is HIGH.
2. Tested at Vee = 5.0 V and Vee = 15 V.
3. This will determine the maximum value of RA + AS' For 15 V operation, the max total R = 20 Mil.
4. For operating at elevated temperatures the device must be derated based on a +125°C maximum junction temperature and a thermal
resistance of +45°C/W junction to case for"TO-5 and +150o C/W junction to ambient for both packages.
7-4





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