TL494_101 Datasheet, PDF (8/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E – JANUARY 1983 – REVISED FEBRUARY 2005
TYPICAL CHARACTERISTICS
100 k
40 k
10 k
4k
OSCILLATOR FREQUENCY AND
FREQUENCY VARIATION^†
vs
TIMING RESISTANCE
−2%
−1%
0%
V_CC = 15 V
T_A = 25°C
0.001 µF
0.01 µF
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1k
0.1 µF
400
100
C_T = 1 µF
40
†
Df = 1%
10
1k
4 k 10 k
40 k 100 k
R_T − Timing Resistance − Ω
400 k 1 M
† _{Frequency variation (∆f) is the change in oscillator frequency that occurs over the full temperature range.}
Figure 5.
AMPLIFIER VOLTAGE AMPLIFICATION
vs
FREQUENCY
100
V_CC = 15 V
90
∆V_O = 3 V
80
T_A = 25°C
70
60
50
40
30
20
10
0
1
10
100 1 k 10 k 100 k 1 M
f − Frequency − Hz
Figure 6.
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