Datasheet

 
  
 
SLVS423 A− MAY 2002 − REVISED SEPTEMBER 2002
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 6
100 k
10 k
1 k
OSCILLATOR FREQUENCY
vs
TIMING RESISTANCE
R
T
− Timing Resistance − Ω
f − Oscillator Frequency − Hz
1 k 10 k 100 k
10 M
1 M
C
T
= 10 pF
C
T
= 120 pF
C
T
= 3900 pF
V
CC
= 6 V
T
A
= 25°C
C
T
= 1000 pF
C
T
= 300 pF
Figure 7
t − Oscillation Period −
OSCILLATOR PERIOD
vs
TIMING CAPACITANCE
10
−1
10
0
10
5
C
T
− Timing Capacitance − pF
sµ
10
1
10
0
10
1
V
CC
= 6 V
R
T
= 5.1 kΩ
T
A
= 25°C
10
2
10
2
10
3
10
4
Figure 8
− Oscillator Frequency − kHz
510
500
490
480
520
OSCILLATOR FREQUENCY
vs
FREE-AIR TEMPERATURE
530
−50 0 50 100
T
A
− Free-Air Temperature − °C
V
CC
= 6 V
R
T
= 10 kΩ
C
T
= 120 pF
osc
f
Figure 9
1.5
1
0.5
2
PWM Triangle Waveform Amplitude − V
PWM TRIANGLE WAVEFORM AMPLITUDE
vs
TIMING CAPACITANCE
10
0
10
1
10
2
10
3
Timing Capacitance − pF
10
4
V
CC
= 6 V
R
T
= 5.1 kΩ
T
A
= 25°C
V
O(min)
V
O(max)
1.9
1.8
1.7
1.6
1.4
1.3
1.2
1.1
0.9
0.8
0.7
0.6