TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS052C – APRIL 1988 – REVISED JULY 1999
TYPICAL CHARACTERISTICS
OSCILLATOR FREQUENCY AND
†
FREQUENCY VARIATION
vs
TIMING RESISTANCE
100 k
40 k
V
T
= 15 V
CC
= 25°C
A
–2%
0.001 µF
–1%
10 k
4 k
0.01 µF
0%
0.1 µF
1 k
400
†
∆f = 1%
100
40
C
= 1 µF
T
10
1 k
4 k
10 k
40 k 100 k
400 k 1 M
R
– Timing Resistance – Ω
T
†
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
= 15 V
CC
O
90
80
70
60
50
40
30
20
10
0
∆V = 3 V
T
A
= 25°C
1
10
100
1 k
10 k
1 M
100 k
f – Frequency – Hz
Figure 6
11
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