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Quad timer. NE558D Datasheet |
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INTEGRATED CIRCUITS
NE558
Quad timer
Product data
Supersedes data of 2001 Aug 03
Philips
Semiconductors
2003 Feb 14
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Philips Semiconductors
Quad timer
Product data
NE558
DESCRIPTION
The NE558 Quad Timers are monolithic timing devices which can be
used to produce four independent timing functions. The NE558
output sinks current. These highly stable, general purpose
controllers can be used in a monostable mode to produce accurate
time delays—from microseconds to hours. In the time delay mode of
operation, the time is precisely controlled by one external resistor
and one capacitor. A stable operation can be achieved by using two
of the four timer sections.
The four timer sections in the NE558 are edge-triggered; therefore,
when connected in tandem for sequential timing applications, no
coupling capacitors are required. Output current capability of
100 mA is provided in both devices.
FEATURES
• 100 mA output current per section
• Edge-triggered (no coupling capacitor)
• Output independent of trigger conditions
• Wide supply voltage range 4.5 V to 16 V
• Timer intervals from microseconds to hours
• Time period equals RC
• Military qualifications pending.
APPLICATIONS
• Sequential timing
• Time delay generation
• Precision timing
• Industrial controls
• Quad one-shot.
ORDERING INFORMATION
DESCRIPTION
16-Pin Plastic Small Outline Large (SOL) Package
16-Pin Plastic Dual In-Line Package (DIP)
PIN CONFIGURATION
D1, N Packages
OUTPUT A 1
TIMING A 2
TRIGGER A 3
CONTROL
VOLTAGE
4
VCC
5
TRIGGER B 6
TIMING B 7
OUTPUT B 8
OUTPUT
STAGE
OUTPUT
STAGE
ff ff
VR
COMP
COMP
VR
16 OUTPUT D
15 TIMING D
14 TRIGGER D
VR
R1 R2
COMP
VR
COMP
VR
ff ff
OUTPUT
STAGE
OUTPUT
STAGE
13 RESET
12 GROUND
11 TRIGGER C
10 TIMING C
9 OUTPUT C
TOP VIEW
NOTE:
1. SOL released in large SO package only.
Figure 1. Pin configuration.
SL00442
TEMPERATURE RANGE
0 to +70 °C
0 to +70 °C
ORDER CODE
NE558D
NE558N
DWG #
SOT162–1
SOT38–4
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC Supply voltage
PD
Maximum power dissipation
Tamb = 25 °C ambient (still-air)1
N package
D package
Tamb
Operating ambient temperature range
Tstg Storage temperature range
Tsld Lead soldering temperature (10 sec max)
NOTES:
1. Derate above 25 °C, at the following rates:
N package at 11.6 mW/°C
D package at 8.7 mW/°C
RATING
+16
1450
1090
0 to +70
–65 to +150
+230
UNIT
V
mW
mW
°C
°C
°C
2003 Feb 14
2
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Philips Semiconductors
Quad timer
Product data
NE558
DC AND AC ELECTRICAL CHARACTERISTICS
Tamb = 25 °C, VCC = +5 V to +15 V, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
Min Typ Max UNIT
VCC
ICC
tA
∆tA/∆T
∆tA/∆VS
VTRIG
ITRIG
VRESET
IRESET
VTH
Supply voltage
Supply current
Timing accuracy (t = RC)
Initial accuracy
Drift with temperature
Drift with supply voltage
Trigger voltage1
Trigger current
Reset voltage2
Reset current
Threshold voltage
Threshold leakage
VCC = Reset = 15 V
R = 2 kΩ to 100 kΩ; C = 1 µF
VCC = 15 V
Trigger = 0 V
Reset
4.5
16
16
36
±2 5
30 150
0.1 0.9
0.8 2.4
5 100
0.8 2.4
50 500
0.63×VCC
15
V
mA
%
ppm/°C
%/V
V
µA
V
µA
V
nA
VOUT
Output voltage3
Output leakage
IL = 10 mA
IL = 100 mA
0.1 0.4
1.0 2.0
V
V
10 500 nA
tPD Propagation delay
1.0 µs
tR Rise time of output
IL = 100 mA
100 ns
tF Fall time of output
IL = 100 mA
100 ns
NOTES:
1. The trigger functions only on the falling edge of the trigger pulse only after previously being HIGH. After reset, the trigger must be brought
HIGH and then LOW to implement triggering.
2. For reset below 0.8 V, outputs set LOW and trigger inhibited. For reset above 2.4 V, trigger enabled.
3. The NE558 output structure is open-collector, which requires a pull-up resistor to VCC to sink current. The output is normally LOW sinking
current.
2003 Feb 14
3
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