Average current mode PFC controller in a 16-TSSOP
The Texas Instruments UCC2819APW is a power-factor-correction controller operating in average current mode, switching at 250 kHz. It takes a supply from 10.8 V to 17 V and draws only 150 µA during startup, making it a fit for industrial and telecom power supplies where the PFC stage needs to stay efficient at light load. The 16-TSSOP package keeps the board footprint small — handy when you are retrofitting a PFC stage into an existing power-board layout.
Temperature grade and where it goes
Rated from -40°C to 85°C, this part covers factory-floor power supplies, outdoor telecom rectifiers in cabinets, and server PSUs that see ambient heat but not engine-bay extremes. It is not AEC-Q100 qualified, so keep it out of under-hood automotive designs. For a motor-drive PFC stage inside a ventilated enclosure, the 85°C ceiling is fine as long as the local ambient near the controller stays below that.
Tube vs reel — the packaging difference
The UCC2819APW ships in a tube, suitable for prototype runs or rework bench hand-placing. For pick-and-place lines, order the tape-and-reel variant.
Active and available — no LTB clock ticking
This part carries an Active lifecycle status, so there is no last-time-buy deadline to manage. You can qualify it into a new design without worrying about a sudden EOL notice next quarter. ROHS3 compliant, no lead-free transition issues.