TPS92074
www.ti.com SLUSBO7 – AUGUST 2013 Non-Isolated, Buck PFC LED Driver with Digital Reference Control
Check for Samples: TPS92074 FEATURES DESCRIPTION The TPS92074 is a hybrid power factor controller
(PFC) optimized for driving LED lighting solutions that
do not require phase dimming compatibility. The
device monitors the converter rectified AC waveform
using an internal, low-power, digital controller. The
controller and DAC generate a synchronized
triangular reference to regulate the output current. By
allowing for some variation in the LED current over a
line cycle and maintaining a regulated overall average
current, high power factor solutions can be achieved. 1 Controlled Reference Derived PFC
Digital 50/60 Hz Synchronization
Constant LED current operation
Single Winding Magnetic Configurations
Low Typical Operating Current
Fast Start-up
Overvoltage Protection
Feedback Short-Circuit Protection
Wide Temperature Operation Range
Low BOM Cost and Small PCB Footprint
Patent Pending Digital Architecture
8-Pin SOIC and 6-Pin TSOT Available APPLICATIONS Non Phase Dimmable LED Lamps …
