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TL494 数据表(PDF) 7 Page - Texas Instruments

部件名 TL494
功能描述  TL494 Pulse-Width-Modulation Control Circuits
Download  33 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TL494 数据表(HTML) 7 Page - Texas Instruments

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4
3
2
1
0
0
10
20
VI − Input Voltage − (mV)
80
60
40
20
0
0
10k
1M
f − Frequency − (Hz)
100k
Df = 1%
(1)
40
10
100
1 k
4 k
10 k
40 k
100 k
400 k
1 M
400
1 k
4 k
10 k
40 k
100 k
RT − Timing Resistance −
0.1 F
µ
−2%
−1%
0%
0.01 F
µ
0.001 F
µ
VCC = 15 V
TA = 25 C
°
CT = 1 F
µ
10
0
100
20
1
10
100
1 M
30
f − Frequency − Hz
1 k
VCC = 15 V
VO = 3 V
TA = 25 C
°
10 k
40
50
60
70
80
90
100 k
TL494
www.ti.com
SLVS074G – JANUARY 1983 – REVISED JANUARY 2015
7.13 Typical Characteristics
xxx
Frequency variation (
Δf) is the change in oscillator frequency
xxx
that occurs over the full temperature range.
Figure 2. Amplifier Voltage Amplification
Figure 1. Oscillator Frequency and Frequency Variation
vs
vs
Frequency
Timing Resistance
Figure 3. Error Amplifier Transfer Characteristics
Figure 4. Error Amplifier Bode Plot
Copyright © 1983–2015, Texas Instruments Incorporated
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Product Folder Links: TL494


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