LM311NG View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
LM311NG Datasheet PDF : 10 Pages
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LM211, LM311
3.0
2.6
Postive Supply − Output Low
2.2
VCC = +15 V
VEE = −15 V
1.8
Positive and Negative Supply − Output High
1.4
1.0
−55 −25
0
25
50
75
100 125
TA, TEMPERATURE (°C)
Figure 15. Power Supply Current
versus Temperature
APPLICATIONS INFORMATION
+15 V
3.0 k
82
0.1 mF
33 k
5.0 k
C1
8 0.002
4.7 k
2 6 mF
Input
+
R1
5
C2
LM311 1 7
Output
−
R2 3
4
0.1 mF
−15 V
Figure 16. Improved Method of Adding
Hysteresis Without Applying Positive
Feedback to the Inputs
+15 V
3.0 k
4.7 k
0.1 mF
5.0 k
100
Input
R1
C2
100
R2
8 C1
3
6
+
5
LM311
17
−
2
4
Output
1.0 M
−15 V 510 k
0.1 mF
Figure 17. Conventional Technique
for Adding Hysteresis
VCC = +15 V
Balance
3.0 k
Adjust
5.0 k
10 k
Balance
Input
+
VCC
Inputs LM311
GND
VEE
Output
to CMOS Logic
VEE = −15 V
Figure 18. Zero−Crossing Detector
Driving CMOS Logic
VEE
VCC1
VCC2
Inputs
VEE
+
LM311
VCC
Output
Balance/Strobe
GND
2N2222 or
Q1 Equivalent
1.0 k
TTL
Strobe
*D1
*Zener Diode D1
protects the comparator
from inductive kickback
and voltage transients
on the VCC2 supply line.
Figure 19. Relay Driver with Strobe Capability
http://onsemi.com
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