Buck driver with integrated 300 V MOSFET
Power-efficient boundary conduction mode
Tight LED current regulation: better than 5%
Direct PWM dimming possible
Fast transient response via cycle-by-cycle control
No need for binning on LED forward voltage
Full set of internal protections
Simple design-in
“A” versions without short winding protection
High efficiency: up to 95% measured on reference board
Low bill of materials: only 14 components for full application
Small PCB area: reference design measures only 18 x 22 mm
Easy, low-cost manufacturing at high volumes
High reliability: IC lifetime easily matches or surpasses LED lamp lifetime