L6572
L6572 is High voltage smart ballast controller manufactured by STMicroelectronics.
High voltage smart ballast controller
- production data
Features
- 600 V half-bridge driver
- Integrated bootstrap diode
- Failure protection logic
- Programmable deadtime
- Programmable preheated start
- Two-step dimming with programmable dimmed current
- Thermal powerboost
- Closed loop control operation
SO14
Applications
- CFLi
- Electronic ballast
Figure 1. Block diagram
COUNTER
IGNITION RECOGNI-
TION
2 STEP DIMMING
UVLO
VREF
OUTPUT STAGE
DEAD TIME
TPB ZVS
HSD LSD
CLOCK
RATED CURRENT
CURRENT REGULATION
SIGNAL...
