UCC28070-Q1
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SLUSA71A –JULY 2010–REVISED JUNE 2011
TYPICAL CHARACTERISTICS (continued)
MULTIPLIER OUTPUT CURRENT
vs
VOLTAGE AMPLIFIER OUTPUT
MULTIPIER CONSTANT
vs
TEMPERATURE
180
160
140
120
100
80
20
QVFF Level
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
19
18
VAO = 3.0 V
VAO = 5.0 V
17
60
16
15
VAO = 1.5 V
40
VAO = 1.2 V
20
14
0
-60 -40 -20
0
20 40 60 80 100 120 140
0
1
2
3
4
5
6
TJ - Temperature - 0C
VAO - Voltage Amplifier Output - V
Figure 5.
Figure 6.
IVINAC BIAS CURRENT
vs
TEMPERATURE
SWITCHING FREQUENCY (normalized change)
vs
TEMPERATURE
1.0
0.8
0.5
0.3
0
0.50
0.45
0.40
0.35
0.30
Typical Frequency= 30 kHz
RT = 249 k?
Typical Frequency= 100 kHz
RT = 75 k?
VINAC = 2.85 V
VINAC = 2.5 V
-0.3
-0.5
0.25
0.20
0.15
Typical Frequency= 290 kHz
RT = 24.9 k?
VINAC = 1.0 V
-0.8
-1.0
VINAC = 0.2 V
VINAC = 2.0 V
0.10
-60 -40 -20
0
20 40 60 80 100 120 140
0.05
0.00
TJ - Temperature - 0
C
-60
-10
40
90
140
TJ - Temperature - 0C
Figure 7.
Figure 8.
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