UCC28180
SLUSBQ5A –NOVEMBER 2013–REVISED NOVEMBER 2013
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TYPICAL CHARACTERISTICS (continued)
20.0
19.5
19.0
18.5
18.0
17.5
17.0
16.5
16.0
15.5
15.0
250.0
249.5
249.0
248.5
248.0
247.5
247.0
246.5
246.0
245.5
245.0
VCC = 15 V
VCC = 15 V
0
25
50
75
100
125
0
25
50
75
100
125
±50
±25
±50
±25
Temperature (C)
Temperature (C)
C006
C002
Figure 9. Oscillator Frequency (18 kHz) vs. Temperature
Figure 10. Oscillator Frequency (250 kHz) vs. Temperature
20.0
250.0
TJ = 25C
TJ = 25C
19.5
249.5
19.0
18.5
18.0
17.5
17.0
16.5
16.0
15.5
15.0
249.0
248.5
248.0
247.5
247.0
246.5
246.0
245.5
245.0
9
11
13
15
17
19
21
9
11
13
15
17
19
21
Bias Supply Voltage (V)
Bias Supply Voltage (V)
C003
C004
Figure 11. Oscillator Frequency (18 kHz) vs. Bias Voltage
Figure 12. Oscillator Frequency (250 kHz) vs. Bias Voltage
2.0
±45
VCC = 15 V
VCC = 15 V
1.8
1.6
1.4
1.2
1.0
±47
±49
±51
±53
±55
Gain, No EDR
0.8
0.6
0.4
0.2
0.0
±57
Gain
±59
±61
±63
±65
10
60
TJ ± Temperature (C)
110
10
60
110
±40
±40
T
J t Temperature (C)
C009
C010
Figure 13. Current Loop Gain vs. Temperature
Figure 14. Voltage Loop Gain vs. Temperature
10
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