ICLS8082G Infineon Technologies, ICLS8082G Datasheet - Page 15

• Manufacturer Part Number: ICLS8082G
• Manufacturer: Infineon Technologies

Specifications of ICLS8082G

• Packages: PG-DSO-12
• Vds: 800V
• Rds (on): 2,26

According to the typical application circuit, when the MOSFET is turned on, a negative voltage proportional to the
bus voltage will be coupled with the auxiliary winding. Inside the IC, an internal circuit will clamp the voltage at the
ZC pin to nearly 0 V. As a result, the current flowing from the ZC pin can be calculated as:
When this current is higher than IZC_1, the amount of current exceeding this threshold is used to generate an
offset to decrease the maximum limit on V
in the IC is implemented to get better control of maximum output power. Another advantage of using digital circuitry
is that the production tolerance is lower than that obtained with analog solutions. The typical maximum limit on V
versus the ZC current is shown in
Figure 7) VCS-max versus I
Data Sheet
I
ZC
=
0.9
0.8
0.7
0.6
V
R
1
300
BUS
ZC
1
N
N
500
P
a
ZC
Figure
700
7.
CS
900
. Since the ideal curve shown in
1100
Offline LED Controller For PFC and Dimming
15
Izc(uA)
1300
1500
Figure 6
1700
1900
is nonlinear, a digital block
Functional Description
Rev1.0, 2011-03-01
2100
ICLS8082G
(4)
CS