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參數(shù)資料
| 型號： | L6668TR |
| 廠商： | 意法半導體 |
| 英文描述： | SMART PRIMARY CONTROLLER |
| 中文描述： | 智能主控制器 |
| 文件頁數(shù)： | 9/23頁 |
| 文件大?。?/td> | 671K |
| 代理商： | L6668TR |
9/23
L6668
Figure 17. Oscillator frequency vs. Tj
Figure 18. Oscillator ramp vs. Tj
Figure 19. Current sense clamp vs. Tj
Figure 20. Disable level on current sense vs. Tj
Figure 21. Reference voltage vs. Tj
Figure 22. PFC_STOP open/low thresholds on
V
COMP
vs. Tj
Tj (°C)
-50
0
50
100
150
99%
99.5%
100%
100.5%
101%
101.5%
102%
R
T
= 13.3 k
C
T
= 1 nF
fsw
Vcc = 9.4V
Vcc = 22V
Vcc = 15V
Values normalized to f
sw
@ Tj=25°C, Vcc=15V
Tj (°C)
Vpin14
(V)
-50
0
50
100
150
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Vcc = 15 V
Peak
Valley
Tj (°C)
V
ISENx
(V)
(pin 12)
-50
0
50
100
150
0.6
0.7
0.8
0.9
1
Vcc = 15 V
V
COMP
= Upper clamp
Tj (°C)
Vpin12
(V)
-50
0
50
100
150
1.0
1.2
1.4
1.6
1.8
2.0
Vcc = 15 V
Tj (°C)
V
REF
(V)
-50
0
50
100
150
4.9
4.95
5
5.05
5.1
Vcc = 15 V
(pin 8)
Tj (°C)
V
COMP
(V)
-50
0
50
100
150
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
Vcc = 15 V
(pin 10)
PFC_STOP low (voltage rising)
PFC_STOP open (voltage falling)
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