ICLS6023J Infineon Technologies, ICLS6023J Datasheet - Page 21

• Manufacturer Part Number: ICLS6023J
• Manufacturer: Infineon Technologies

Specifications of ICLS6023J

• Packages: PG-DIP-8
• Vds: 650V
• Rds (on): 1,70

3.6
The Control Unit contains the functions for the Auto Restart and Floating Load Protection (FLP) modes. The Auto
Restart mode is combined with an adjustable blanking window, which varies according to the value of the external
soft start capacitor. The IC avoids entering into either of these two modes accidentally by means of this adjustable
blanking window. The window also provides a certain time during which overload detection is delayed. This delay
is useful for applications that normally work with a low current and occasionally require a short duration of high
current.
3.6.1
V
is due to the frequency jittering function that makes use of the soft start pin. If overload occurs, V
The Auto Restart mode cannot be entered as the gate G5 is still blocked by the comparator C3. However, after
V
further charged by the integrated pull-up resistor R
gate G5 once V
charging time of the external capacitor C
Figure 15
Data Sheet
SoftS
FB
has exceeded 4.5 V, the switch S2 is opened and S3 is closed. The external soft start capacitor can then be
swings between 3.2 V and 3.6 V after the LED drive has settled and S2 is on while S3 is off. This behavior
Control Unit
Adjustable Blanking Window
Adjustable blanking window
SoftS
has exceeded 4.0 V. This means that Auto Restart mode cannot be entered during the
FB
SoftS
4.0V
4.5V
S1
SoftS
3.0V
C3
C4
.
SoftS
S3
S2
21
through the switch S3. The comparator C3 releases the
G5
&
R
Frequency
SoftS
Jitter
Control Unit
Restart
Mode
Auto
5V
LED System Driver ICs
Functional Description
Version 1.0, 2011-05-19
ICLS6x Series
FB
exceeds 4.5 V.