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參數(shù)資料
| 型號： | TL494 |
| 廠商： | Motorola, Inc. |
| 英文描述： | SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| 中文描述： | 開關(guān)模式脈寬調(diào)制控制電路 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大小： | 449K |
| 代理商： | TL494 |
www.ti.com
TYPICAL CHARACTERISTICS
Df
40
10
100
1 k
4 k
10 k
40 k
100 k
400 k
1 M
f
OSCILLATOR FREQUENCY AND
FREQUENCY VARIATION
vs
TIMING RESISTANCE
400
1 k
4 k
10 k
40 k
100 k
R
T
Timing Resistance
0.1
μ
F
2%
1%
0%
0.01
μ
F
0.001
μ
F
V
CC
= 15 V
T
A
= 25
°
C
C
T
= 1
μ
F
Frequency variation (
f) is the change in oscillator frequency that occurs over the full temperature range.
10
0
100
20
1
10
100
f Frequency Hz
1 M
A
30
AMPLIFIER VOLTAGE AMPLIFICATION
vs
FREQUENCY
1 k
V
CC
= 15 V
V
O
= 3 V
T
A
= 25
°
C
10 k
40
50
60
70
80
90
100 k
TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E–JANUARY 1983–REVISED FEBRUARY 2005
Figure 5.
Figure 6.
8
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