Datasheet

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SLUS456D − APRIL 1999 - REVISED AUGUST 2002
7
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TYPICAL CHARACTERISTICS
Figure 3
Frequency - kHz
OSCILLATOR FREQUENCY
vs
EXTERNAL RC VALUES
0
RT − Timing Resistor − k
Ω
50 100 150 200
1
10
100
1000
C = 100 pF
C = 220 pF
C = 330 pF
C = 560 pF
C = 820 pF
C = 1000 pF
Figure 4
600 800 1000 120
0
4002000
0
2
4
6
8
10
12
14
Oscillator Frequency − kHz
IDD
without load
IDD
with 1 nF load
VDD = 10 V, t = 25
5
C
IDD
vs
OSCILLATOR FREQUENCY
IDD -mA
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
Temperature
COMP TO CS OFFSET
vs
TEMPERATURE
COMP - CS Offset - V
- °C
1 100 10000 1000000
0
10
20
30
40
50
60
70
80
90
0
20
40
60
80
100
120
140
160
180
Gain
Figure 6
Phase Margin - Degrees
Gain dB
ERROR AMPLIFIER GAIN AND PHASE
RESPONSE
vs
FREQUENCY
Frequency − Hz
Phase
Figure 7
OUTPUT DEAD TIME
vs
EXTERNAL RC VALUES
Dead Time - ns
RT − Timing Resistor − k
Ω
50 100 150 200
25
0
100
150
250
300
200
50
C = 100 pF
C = 220 pF
C = 330 pF
C = 560 pF
C = 820 pF
C = 1000 pF
Figure 8
DEAD TIME
vs
TEMPERATURE
Dead Time - ns
Temperature - °C
−100 −50 0 50 100 150
VDD = 10 V
VDD = 7.5 V
VDD = 5 V
0
50
100
150
200
250
300
350
400
Figure 9
RC R
DS(on)
vs
TEMPERATURE
Ohms
−100 −50 0 50 100 150
0
50
100
150
200
250
300
VDD = 10 V
VDD = 7.5 V
VDD = 5 V
Temperature - °C
Figure 10
Temperature - °C
−100 −50 0 50 100 150
0
20
40
60
80
100
120
VDD = 5 V
VDD = 7.5 V
VDD = 10 V
Ohms
CS R
DS(on)
vs
TEMPERATURE