Primary-side current sensing and regulation without an opto-coupler
High Power Factor of >0.9 without additional circuitry
Accurate constant current (< ±3%)
Low start-up current which reduces power dissipation
Full protection functions for enhanced safety :
- Gate driver output voltage clamp
- VCC over voltage protection -- VCC OVP
- VCC under-voltage lockout with
hysteresis -- VCC UVLO
- Output LED string over current protection
- Output LED string short / open protection
- On-chip over temperature protection -- OTP
PRODUCT SERIES
RESOURCES
IC : Holtek HT7L5600, Primary side regulation off line LED driver with active PFC
, including datasheet, package dimension, etc.
