ICLS6022G Infineon Technologies, ICLS6022G Datasheet - Page 15

• Manufacturer Part Number: ICLS6022G
• Manufacturer: Infineon Technologies

Specifications of ICLS6022G

• Packages: PG-DSO-12
• Vds: 650V
• Rds (on): 4,70

3.3
Figure 6
At the beginning of the startup phase, the IC provides a soft start period during which it controls the maximum
primary current by means of duty cycle limitation. A capacitor C
R
When the soft start begins, C
place between 0.8 V and 3.2 V. Above V
controlled by the comparator C7 since the comparator C2 blocks the gate G7 (see
charge current in the very first stage when V
Figure 7
Data Sheet
SoftS
determines the duty cycle until V
Startup Phase
Soft start
Startup phase
SoftS
DC
V
4.0V
3.2V
0.8V
is immediately charged up to approx. 0.8 V by T2. The soft start phase takes
DC
DC
SoftS
max
1
2
SoftS
SoftS
C
SoftS
max. Soft Start Phase
SoftsS
exceeds 3.2 V.
SoftS
3.2V
0.6V
= 3.2 V there is no longer any duty cycle limitation DC
R
Discharging
Freq Jitter
Soft Start
current I
SoftS
Freq Jitter
current I
is below 0.8 V is limited to 0.9 mA.
Charging
max . Startup Phase
C7
C2
FJ
FJ
15
t1
Comparator
3.25kΩ
Soft-Start
G7
T2
&
Softs
x3.2
Freq Jitter
in combination with the internal pull-up resistor
PWM OP
Control
Gate Driver
T3
5V
0.8V
CS
t2
t
t
LED System Driver ICs
Figure
Functional Description
Version 1.0, 2011-05-19
7). This maximum
ICLS6x Series
max
that is