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LM122 データシート(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM122
部品情報  Precision Timers
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM122 データシート(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Power Dissipation
500 mW
V
a
Voltage
40V
Collector Output Voltage
40V
VREF Current
5 mA
Trigger Voltage
g
40V
VADJ Voltage (Forced)
5V
Logic Reverse Voltage
55V
Output Short Circuit Duration (Note 1)
Lead Temperature
(Soldering 10 sec)
260 C
Operating Temperature Range
LM122
b
55 C s TA s a125 C
LM322
0 C s TA s a70 C
LM3905
0 C s TA s a70 C
Electrical Characteristics (Note 2)
Parameter
Conditions
LM122
LM322
LM3905
Units
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Timing Ratio
TA e 25 C 45V s Va s 40V 0626 0632 0638 0620 0632 0644 0620 0632 0644
Boost Tied to Va (Note 3)
0620 0632 0644 0620 0632 0644
Comparator Input
TA e 25 C 45V s Va s 40V
03
10
03
15
05
15
nA
Current
Boost Tied to Va
30
100
30
100
nA
Trigger Voltage
TA e 25 C 45V s Va s 40V
12
16
2
12
16
2
12
16
2
V
Trigger Current
TA e 25 C VTRIG e 2V
25
25
25
m
A
Supply Current
TA t 25 C 45V s Va s 40V
25
4
25
45
25
45
mA
Timing Ratio
45V s Va s 40V
062
0644
061
0654
061
0654
Boost Tied to Va
062
0644
061
0654
Comparator Input
45V s Va s 40V
b
55
b
22
b
25
25
nA
Current
Boost Tied to Va (Note 4)
100
150
nA
Trigger Voltage
45V s Va s 40V
08
25
08
25
08
25
V
Trigger Current
VTRIG e 25V
200
200
200
m
A
Output Leakage
VCE e 40V
155
m
A
Current
Capacitor Saturation
Rt t 1MX
25
25
25
mV
Voltage
Rt e 10 kX
25
25
25
mV
Reset Resistance
150
150
150
X
Reference Voltage
TA e 25 C
3
315
33
3
315
33
3
315
33
V
Reference Regulation
0 s IOUT s 3 mA
2050
2050
2050
mV
45V s Va s 40V
6
25
6
25
6
25
mV
Collector Saturation
IL e 8 mA
025
04
025
04
025
04
V
Voltage
IL e 50 mA
07
14
07
14
07
14
V
Emitter Saturation
TA e 25 C IL e 3 mA
18
22
18
22
18
22
V
Voltage
TA e 25 C IL e 50 mA
21
3
21
3
21
3
V
Average Temperature
Coefficient of Timing
0003
0003
0003
% C
Ratio
Minimum Trigger Width VTRIG e 3V
025
025
025
m
s
Note 1
Continuous output shorts are not allowed Short circuit duration at ambient temperatures up to 40 C may be calculated from t e 120VCE seconds where
VCE is the collector to emitter voltage across the output transistor during the short
Note 2
These specifications apply for TAMIN s TA s TAMAX unless otherwise noted
Note 3
Output pulse width can be calculated from the following equation t e (Rt)(Ct) 1 b 2(0632 b r) b VC VREF) where r is timing ratio and VC is capacitor
saturation voltage This reduces to t e (Rt)(Ct) for all but the most critical applications
Note 4
Sign reversal may occur at high temperatures (l 100 C) where comparator input current is predominately leakage See typcial curves
Note 5
Refer to RETS122X drawing of military LM122H version for specifications
2


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