ICLS6023J Infineon Technologies, ICLS6023J Datasheet - Page 19

• Manufacturer Part Number: ICLS6023J
• Manufacturer: Infineon Technologies

Specifications of ICLS6023J

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

3.5.1
Each time when the integrated internal CoolMOS™ is switched on, a leading edge spike is generated due to the
primary-side capacitances and secondary-side rectifier reverse recovery time. This spike can cause the gate drive
to switch off unintentionally. To avoid premature termination of the switching pulse, this spike is blanked out with
a time constant of t
Figure
Figure 11
3.5.2
In the case of overcurrent detection, switch-off of the integrated internal CoolMOS™ is delayed due to the
propagation delay of the circuit. This delay causes an overshoot of the peak current I
ratio of dI/dt of the peak current (see
Figure 12
The overshoot of Signal2 is greater than that of Signal1 due to the steeper rising waveform. This change in the
slope varies according to the AC input voltage. A Propagation Delay Compensation circuit is integrated to limit the
overshoot dependency on dI/dt of the rising primary current. This means that the propagation delay between the
time the current sense threshold V
compensated over temperature within a wide range.
Data Sheet
11.
Leading Edge Blanking
Propagation Delay Compensation
Leading edge blanking
Peak current overshooting
LEB
= 220 ns. During this time, the gate drive will not be switched off. This is illustrated in
V
I
I
I
peak2
peak1
Limit
cs th
V
I
Sense
Sense
Figure
csth
is exceeded and switch-off of the integrated inernal CoolMOS™ is
I
Overshoot 2
12).
Signal2
t
LEB
19
= 220ns
Signal1
t
Propagation Delay
I
Overshoot 1
t
t
LED System Driver ICs
peak
Functional Description
Version 1.0, 2011-05-19
, which depends on the
ICLS6x Series