Datasheet

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SLUS168D APRIL 1999 REVISED AUGUST 2002
8
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APPLICATION INFORMATION
Figure 3
0 50 100 150 200 250
0
10
100
1000
CT=1000pF
CT=820pF
CT=560pF
CT=330pF
CT=220pF
CT=100pF
Frequency kHz
FREQUENCY
vs
TIMING RESISTOR
R
T
Timing Resistor k
Figure 4
0 200 400 800 1000 1200
0
4
8
14
IDD With 1 nF
Load
IDD Without
Load
600
2
6
10
12
VDD = 10 V, T = 25 C
IDD mA
IDD
vs
OSCILLATOR FREQUENCY
Oscillator Frequency kHz
Figure 5
55 35 15 5 25 45 65 85 105 125
0
0.2
0.4
0.6
0.8
1.0
1.2
COMP CS Offset V
CS OFFSET
vs
TEMPERATURE
Temperature °C
Figure 6
Frequency Hz
Phase Margin - Degrees
Gain dB
ERROR AMPLIFIER GAIN AND PHASE
RESPONSE
vs
FREQUENCY
1 100 10000 1000000
0
10
20
30
40
50
60
70
80
90
0
20
40
60
80
100
120
140
160
180
Phase
Gain
Figure 7
0 20 40 60 80 100
0
20
40
60
80
100
120
CT=1000pF
CT=820pF
CT=560pF
CT=330pF
CT=220pF
CT=100pF
Dead Time ns
DEAD TIME
vs
TIMING RESISTOR
RT Timing Resistor k