Philips Semiconductors Linear Products Product specification
NE558Quad timer
378
August 31, 1994 853-0150 13721
DESCRIPTION
The 558 Quad Timers are monolithic timing devices which can be
used to produce four independent timing functions. The 558 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 558 are edge-triggered; therefore,
when connected in tandem for sequential timing applications, no
coupling capacitors are required. Output current capability of 100mA
is provided in both devices.
FEATURES
•100mA output current per section
•Edge-triggered (no coupling capacitor)
•Output independent of trigger conditions
•Wide supply voltage range 4.5V to 16V
•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
PIN CONFIGURATION
VR
OUTPUT
STAGE
OUTPUT
STAGE
NOTE:
1. SOL released in large SO package only.
D1, N Packages
1
2
3
4
5
6
7
89
10
11
12
13
14
16
15
COMP
f f
VR
COMP
f f
OUTPUT
STAGE
VR
COMP
f f
OUTPUT
STAGE
VR
COMP
f f
VR
R1 R2
OUTPUT A
TIMING A
TRIGGER A
CONTROL
VOLTAGE
VCC
TRIGGER B
OUTPUT
OUTPUT
TOP VIEW
OUTPUT D
TIMING D
TRIGGER D
RESET
GROUND
TRIGGER C
TIMING C
OUTPUT C
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
16-Pin Plastic Small Outline Large (SOL) Package 0 to +70°C NE558D 0171B
16-Pin Plastic Dual In-Line Package (DIP) 0 to +70°C NE558N 0406C
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
VCC Supply voltage +16 V
PDMaximum power dissipation
TA=25°C ambient (still-air)1
N package 1450 mW
D package 1090 mW
TAOperating ambient temperature range 0 to +70 °C
TSTG Storage temperature range -65 to +150 °C
TSOLD Lead soldering temperature (10sec max) +300 °C
NOTES:
1. Derate above 25°C, at the following rates:
N package at 11.6mW/°C
D package at 8.7mW/°C
Philips Semiconductors Linear Products Product specification
NE558Quad timer
August 31, 1994 379
DC AND AC ELECTRICAL CHARACTERISTICS
TA = 25°C, VCC = +5V to +15V, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
NE558
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min Typ Max
UNIT
VCC Supply voltage 4.5 16 V
ICC Supply current VCC=Reset=15V 16 36 mA
Timing accuracy (t=RC) R=2kΩ to 100kΩ,
C=1µF
tAInitial accuracy ±2 5 %
∆tA/∆T Drift with temperature 30 150 ppm/°C
∆tA/∆VSDrift with supply voltage 0.1 0.9 %/V
VTRIG Trigger voltage1VCC=15V 0.8 2.4 V
ITRIG Trigger current Trigger=0V 5 100 µA
VRESET Reset voltage20.8 2.4 V
IRESET Reset current Reset 50 500 µA
VTH Threshold voltage 0.63 ×VCC
Threshold leakage 15 nA
VOUT Output voltage3IL=10mA 0.1 0.4 V
IL=100mA 1.0 2.0 V
Output leakage 10 500 nA
tPD Propagation delay 1.0 µs
tRRise time of output IL=100mA 100 ns
tFFall time of output IL=100mA 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 0.8V, outputs set low and trigger inhibited. For reset above 2.4V, trigger enabled.
3. The 558 output structure is open-collector which requires a pull-up resistor to VCC to sink current. The output is normally low sinking current.
Philips Semiconductors Linear Products Product specification
NE558Quad timer
August 31, 1994 380
558 EQUIVALENT CIRCUIT
TIMING
VCONTROL
VCC
GND
+ 3V
RESET
TRIGGER
OUT
TOUTPUT
Figure 1. Long-Time Delay
VCC
TRIGGER
R1
C1
RL
T
TR0
R1
C1T
TR0
R1
C1T
TR0
R1
C2
OUTPUT 4
OUTPUT 1OUTPUT 2 OUTPUT 3
NOT USED
T
TR0
TRIGGER
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
TDELAY 3(R1C)
TOUT R2C2)
TDELA
Y
RLRLRL
Philips Semiconductors Linear Products Product specification
NE558Quad timer
August 31, 1994 381
T = RC
Figure 2.
b. Expected Waveforms
a. Ring Counter
TRIG 01
TIME
13
3
5
2
R1
VCC
START
RESET
C1
RL
1
10K
TRIG 02
TIME
13
7
R1
C1
RL
8TRIG 03
TIME
13
10
R1
C1
RL
9TRIG 04
TIME
13
15
R1
C1
RL
166 11 14
12
VCC
START
RESET
01
02
03
04
