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參數(shù)資料
| 型號(hào)： | LM556 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Dual Timer |
| 中文描述： | 雙定時(shí)器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 216K |
| 代理商： | LM556 |
Electrical Characteristics
(Continued)
(T
A
= 25C, V
CC
= +5V to +15V, unless otherwise specified)
Parameter
Conditions
Limits
LM556C
Typ
12.5
13.3
3.3
100
100
Units
Min
Max
Output Voltage Drop (High)
I
SOURCE
= 200mA, V
CC
= 15V
I
SOURCE
= 100mA, V
CC
= 15V
V
CC
= 5V
V
V
V
ns
ns
12.75
2.75
Rise Time of Output
Fall Time of Output
Matching Characteristics
Initial Timing Accuracy
Timing Drift with Temperature
Drift with Supply Voltage
(Note 8)
0.1
±
10
0.2
2.0
%
ppm/C
%/V
0.5
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Note 2:
For operating at elevated temperatures the device must be derated based on a +150C maximum junction temperature and a thermal resistance of 77C/W
(Plastic Dip), and 110C/W (SO-14 Narrow).
Note 3:
Supply current when output high typically 1mA less at V
CC
= 5V.
Note 4:
Tested at V
CC
= 5V and V
CC
= 15V.
Note 5:
As reset voltage lowers, timing is inhibited and then the output goes low.
Note 6:
This will determine the maximum value of R
A
+ R
B
for 15V operation. The maximum total (R
A
+ R
B
) is 20 M
.
Note 7:
No protection against excessive pin 1, 13 current is necessary providing the package dissipation rating will not be exceeded.
Note 8:
Matching characteristics refer to the difference between performance characteristics of each timer section.
Note 9:
Refer to RETS556X drawing of military LM556J versions.
Typical Performance Characteristics
Minimum Pulse Width Required for Triggering
DS007852-3
Supply Current vs. Supply Voltage (Each Section)
DS007852-4
L
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