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参数资料
| 型号： | LM555C |
| 厂商： | Harris Corporation |
| 英文描述： | Timers for Timing Delays and Oscillator Application in Commercial, Industrial and Military Equipment |
| 中文描述： | 计时器的时间延误和商业，工业和军事振荡器应用设备 |
| 文件页数： | 5/6页 |
| 文件大小： | 79K |
| 代理商： | LM555C |
8-7
Top Trace: Output voltage (2V/Div. and 0.5ms/Div.)
Bottom Trace: Capacitor voltage (1V/Div. and 0.5ms/Div.)
FIGURE 5. TYPICAL WAVEFORMS FOR REPEAT CYCLE TIMER
FIGURE 6. FREE RUNNING FREQUENCY OF REPEAT CYCLE
TIMER WITH VARIATION IN CAPACITANCE AND
RESISTANCE
Typical Performance Curves
NOTE: Where x is the decimal multiplier of the supply voltage.
FIGURE 7. MINIMUM PULSE WIDTH vs MINIMUM TRIGGER
VOLTAGE
FIGURE 8. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 9. OUTPUT VOLTAGE DROP (HIGH STATE) vs
SOURCE CURRENT
FIGURE 10. OUTPUT VOLTAGE LOW STATE vs SINK
CURRENT
5V
0
3.3V
1.7V
0
t2
t1
100
10
0.1
0.01
0.001
CAP
A
CIT
ANCE
(
F)
FREQUENCY (Hz)
10-1
110
102
103
104
105
TA = 25
oC, V+ = 5V
R1 + 2R2 = 1k
10k
100k
1M
10M
1
MINIMUM TRIGGER (PULSE) VOLTAGE (x V+) (NOTE)
0.4
0.3
0.2
0.1
0
150
100
50
TA = -55
oC
25oC
125oC
70oC
0oC
MINIMUM
PULSE
WIDTH
(ns)
SUPPLY VOLTAGE (V)
SUPPL
Y
CURRENT
(mA)
15
12.5
10
7.5
5
2.5
0
10
9
8
7
6
5
4
3
2
1
TA = 125
oC
25oC
50oC
SOURCE CURRENT (mA)
SUPPL
Y
V
O
L
T
A
GE
-
OUTPUT
V
O
L
T
A
GE
(V)
100
10
1
2.0
1.6
1.2
0.8
0.4
0
25oC
TA = -55
oC
125oC
5V
≤ V+ ≤ 15V
SINK CURRENT (mA)
OUTPUT
V
O
L
T
A
GE
-
LO
W
ST
A
TE
(V)
100
10
1
10.0
1.0
0.1
0.01
25oC
TA = -55
oC
125oC
V+ = 5V
CA555, CA555C, LM555, LM555C, NE555
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