Page 1
KA558/KA558B
Quad Timer
www.fairchildsemi.com
Features
• Wide Supply Voltage Range: 4.5V To 16V
• 100 mA Output Current Per Section
• Edge Triggered Witho ut Coupling Capacitor
• Time Per iod Equals RC
• Output independent Of Trigger Cond i t ion s
Applications
• Quad One-Shot
• Sequential Timing
• Precision Timing
• Time Delay Generation
Internal Block Diagram
Description
The KA558/KA558B series are monolithic Quad Timers
which can be used to produce four entirely independent timing functions. These highly stable, general purpose controllers can be used in a monostable mode to produce
accurate time delays, from microseconds to hours. The time
is precisely controlled by one external resistor and one
capacitor in the time delay mode. A stable mode can be operated using two of four time sections.
16-DIP
1
16-SOP
1
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.1
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KA558/KA558B
Absolute Maximum Ratings (TA = 25°°°°C)
Parameter Symbol Value Unit
Supply Voltage V
Lead Temperature (soldering 10sec) T
LEAD
Power Dissipation P
Operating Temperature Range KA558/KA558B T
Storage Temperature Range T
CC
D
OPR
STG
16 V
300 °C
600 mW
0 ~ + 70 °C
-65 ~ + 150 °C
Electrical Characteristics
(V
= 5 ~ 15V, TA = 25°C, unless otherwise specified)
CC
Parameter Symbol Conditions Min. Typ. Max. Unit
Supply Voltage V
Supply Current I
Timing Error (T = RC)
Initial Accuracy
Drift with Temperature
Drift with Supply Voltage
1
*
Trigger Voltage V
1
*
Trigger Current I
2
Reset Voltage V
*
2
Reset Current I
*
ACCUR
∆t/∆T
∆t/∆V
Threshold Voltage V
Threshold Current I
*3
Output Voltage V
Output Leakage Current I
Propagation Delay Time t
Rise Time t
Fall Time t
CC
CC
TR
TR
RST
RST
TH
TH
O
LKG
D
R
F
VCC =15V, reset voltage =15V - 16 36 mA
R = 2KΩ to 100KΩ, C =1µF-
CC
V
= 15V - 1.5 2.4 V
CC
VTR= 0V - 5.0 100 µA
IL = 10mA - 0.1 0.4
= 100mA - 1.0 2.0
I
L
IL = 100mA - 100 - nS
IL = 100mA - 100 - nS
-4.5-16V
±2
30
0.1
5
150
0.9
- 0.8 1.5 2 .4 V
- - 50 500 µA
-0.8
0.63 ×
V
CC
-V
--15-nA
- - 10 500 nA
--1.0-µS
%
PPM/°C
%/V
V
Note :
1. The trigg er f unctions only on the falling edge of the trigg er pul se o nly after previously being high. After rese t the trigger must
be brought high and then low to implement triggering.
2. For reset below 0.8V, outputs set low and trigger inhibited.
3. Output structure is open collector which requires a pull up resistor to V
The output is normally low sinking current.
to sink current.
CC
2
Page 3
Mechanical Dimensions
Package
6.40 ±0.20
0.252 ±0.008
16-DIP
Dimensions in millimeters
0.81
0.032
()
KA558/KA558B
#1
#8
7.62
0.300
#16
#9
MAX
19.80
0.780
3.25 ±0.20
0.128 ±0.008
19.40 ±0.20
0.764 ±0.008
0.38
0.014
±0.10
0.46
2.54
MIN
0.018 ±0.004
0.100
1.50 ±0.10
0.059 ±0.004
0~15°
0.25
0.010
5.08
0.200
+0.10
–0.05
+0.004
–0.002
MAX
3.30 ±0.30
0.130 ±0.012
3
Page 4
KA558/KA558B
Mechanical Dimensions
Package
#1
(Continued)
16-SOP
#16
MIN
1.55
0.061
MAX
10.30
0.405
Dimensions in millimeters
0.05
0.002
±0.10
±0.004
0.10
-0.05
±0.20
±0.008
9.90
0.39
+
0.406
0.51
0.020
()
0.004
-0.002
+
0.016
0.10
+
-0.05
0.20
0.70
0.0275
0.004
+
±0.20
±0.008
-0.002
0.008
#8
6.00
0.236
3.95
0.156
0.225
±0.30
±0.20
±0.008
5.72
±0.012
#9
0~8°
1.80
0.071
MAX
MAX0.10
MAX0.004
1.27
0.050
4
Page 5
Ordering Information
Product Number Package Operating Temperature
KA558B 16-DIP
0 ~ + 70°CKA558BD
KA558D2
16-SOP
KA558/KA558B
5
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KA558/KA558B
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURT HER NOTICE TO ANY
PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTIO N OR DESIGN. FAIRCH IL D DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER IT S PATENT RIGHTS, NOR THE RIGHTS OF OTHE RS.
LIFE SUPPORT POL I CY
FAIRCHILD’S PR ODUCTS ARE NOT AUTH ORIZED FOR USE AS C RITICAL COMPONENT S IN LIFE SUPPORT DE VICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein :
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
2. A critical component in any component of a life support
device or sy stem whose fai lure to perform can be
reasonably expec ted to cause the failur e of the life support
device or system, or to affect its safety or effec t iv ene ss .
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
www.fairchildsemi.com
5/22/01 0.0m 001
2001 Fairchild Semiconductor Corporation
Stock#DSxxxxxxxx
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