L6668_06 STMICROELECTRONICS [STMicroelectronics], L6668_06 Datasheet - Page 9

• Manufacturer Part Number: L6668_06
• Description: SMART PRIMARY CONTROLLER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 17. Oscillator frequency vs. Tj
Figure 18. Oscillator ramp vs. Tj
Figure 19. Current sense clamp vs. Tj
fsw
Vpin14
101.5%
100.5%
V
(V)
(V)
99.5%
ISENx
102%
101%
100%
99%
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.9
0.8
0.7
0.6
1
-50
-50
-50
(pin 12)
Values normalized to f
Valley
Peak
R
T
C
= 13.3 kΩ
T
= 1 nF
0
0
0
Tj (°C)
Tj (°C)
Tj (°C)
V
50
50
COMP
s w
50
@ Tj=25°C, Vcc=15V
Vcc = 15 V
= Upper clamp
Vcc = 22V
Vcc = 15 V
100
100
Vcc = 9.4V
100
Vcc = 15V
150
150
150
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
Vpin12
(V)
V
V
(V)
(V)
REF
COMP
2.0
1.8
1.6
1.4
1.2
1.0
vs. Tj
5.05
4.95
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
(pin 8)
-50
5.1
4.9
-50
(pin 10)
5
-50
PFC_STOP low (voltage rising)
PFC_STOP open (voltage falling)
0
0
0
Tj (°C)
Tj (°C)
Tj (°C)
50
50
50
Vcc = 15 V
Vcc = 15 V
Vcc = 15 V
100
100
100
150
150
150
L6668
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