Datasheet

UTC NE558
LINEAR INTEGRATED CIRCUIT
QUAD TIMER
DESCRIPTION
The UTC NE558 is a monolithic quad timer which
can be used to produce four entirely independent
timing functions. The highly stable, general purpose
controller can be used in a monostable mode to
produce accurate time delays.
SOP-16
FEATURES
*Wide supply voltage: Vcc= 4.5V~15V
*100mA output current per-section
*Edge trigger without coupling capacitor
*Time period equals RC
*Output independent
DIP-16
APPLICATIONS
*Precision timing
*Quad one-shot
*Timing delay generation
*Sequential timing.
BLOCK DIAGRAM
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R106-003,A
UTC NE558
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
PARAMETER
SYMBOL
VALUE
UNIT
Vcc
Pd
Tlead
16
600
300
V
mW
°C
Topr
Tstg
-40~85
-65~150
°C
°C
Supply Voltage
Power Dissipation
Lead Temperature(soldering 10
sec.)
Operating Temperature
Storage Temperature
ELECTRICAL CHARACTERISTICS( Ta=25°C ,Vcc=5 to 15V, unless otherwise specified)
PARAMETER
Supply Voltage
Supply Current
Timing Error(T=RC)
Initial Accuracy
SYMBOL
Vcc
Icc
ACCUR
Drift with Temperature
Drift with Supply Voltage
Threshold Voltage( Note 1)
Threshold Current
Trigger voltage
Trigger Current
Reset Voltage(Note 2)
Reset Current
Output Voltage( Note 3)
∆t/∆T
∆t/∆Vcc
VTH
ITH
Vtr
Itr
Vrst
Irst
VOL
Rise Time of Output
Fall Time of Output
Discharge Leakage Current
tR
tF
ILKG
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vcc=15V,RL=15V
16
16
36
V
mA
RA=2KΩ to 100KΩ
C=1µF
2
5
%
30
0.1
0.63*Vcc
15
1.5
5
1.5
5
0. 1
1
100
100
10
150
0.9
ppm/°C
%/V
V
Na
V
µA
V
µA
V
4.5
Vcc=15V
Vtr=0
Reset
Reset
IL=10mA
IL=100mA
IL=100mA
IL=100mA
0.8
0.8
2.4
100
2.4
100
0. 4
2
300
500
nSec
nSec
nA
Note 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.
Note 2: For reset below 0.8V, output s set low and trigger inhibited.
Note 3: Output structure is open collector which requires a pull up resistor to Vcc to sink current. The output is
normally low sinking current.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R106-003,A
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