MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by BUL44/D
™ Data Sheet SWITCHMODE™
Designer's
NPN Bipolar Power
Transistor For Switching Power Supply Applications
The BUL44/BUL44F have an applications specific state–of–the–art die designed for use in 220 V line operated Switchmode Power supplies and electronic light ballasts.
These high voltage/high speed
transistors offer the following: • Improved Efficiency Due to Low Base Drive Requirements: — High and Flat DC Current Gain hFE — Fast Switching — No Coil Required in Base Circuit for Turn–Off (No Current Tail) • Full Characterization at 125°C • Tight Parametric Distributions are Consistent Lot–to–Lot • Two Package Choices: St...