ICLS6022J Datasheet, PDF (17/33 Pages) Infineon Technologies AG – LED System Driver ICs

LED System Driver ICs
ICLS6x Series
Functional Description
3.4.2 PWM Latch FF1
The oscillator clock output provides a set pulse to the PWM latch when initiating the internal CoolMOS™
conduction. After being set, the PWM latch can be reset by the PWM comparator, the soft start comparator or the
current limit comparator. In resetting situations the driver is shut down immediately.
3.4.3 Gate Driver
The gate driver is a fast totem pole gate drive designed to avoid cross conduction currents. It is active low at
voltages below the undervoltage lockout threshold V_VCCoff.
VCC
PWM Latch
1
Figure 9 Gate driver
Gate Driver
Gate
Depl . CoolMOS™
Data Sheet
17
Version 1.0, 2011-05-19