L6562
Figure 14. Vcs clamp vs. Tj
Figure 17. ZCD source capability vs. Tj
V
I
ZCDsrc
CSx
2
1.8
1.6
1.4
1.2
1
0
-2
-4
-6
-8
(mA)
(V)
Vcc = 12 V
= lower clamp
V
ZCD
Vcc = 12 V
VCOMP= Upper clamp
-50
0
50
Tj (°C)
100
150
-50
0
50
100
150
Tj (°C)
Figure 15. Start-up timer vs. Tj
Figure 18. Gate-drive output low saturation
Tstart
150
pin7
V
[V]
(µs)
4
3
2
1
0
Vcc = 12 V
Tj = 25 °C
Vcc = 11 V
SINK
140
130
120
110
100
0
200
400
600
800
1,000
-50
0
50
100
150
IGD[mA]
Tj (°C)
Figure 19. Gate-drive output high saturation
Figure 16. ZCD clamp levels vs. Tj
V
ZCD 7
(V)
Vpin7
-1.5
[V]
Upper clamp
Tj = 25 °C
Vcc = 11 V
SOURCE
6
5
4
3
2
1
0
-2
Vcc - 2.0
Vcc = 12 V
I
ZCD = ±2.5 mA
-2.5
Vcc - 2.5
-3
Vcc - 3.0
-3.5
Vcc - 3.5
-4
Vcc - 4.0
Lower clamp
100
-4.5
0
100 200 300 400 500 600 700
IGD[mA]
-50
0
50
150
Tj (°C)
7/16
STMICROELECTRONICS [ ST ]
