BUL742A Datasheet PDF - STMicroelectronics

DESCRIPTION
The BUL742A is manufactured using high voltage Multi Epitaxial Planar technology for high switching speeds and high voltage capability.
Thanks to an increased intermediate layer, it has an intrinsic ruggedness which enables the transistor to withstand an high collector current level during breakdown condition, without using the transil protection usually necessary in typica converters for lamp ballast.
   
■ HIGH VOLTAGE CAPABILITY
■ LOW SPREAD OF DYNAMIC PARAMETERS
■ MINIMUM LOT-TO-LOT SPREAD FOR
    RELIABLE OPERATION
■ VERY HIGH SWITCHING SPEED
   
APPLICATIONS
■ FOUR LAMP ELECTRONIC BALLAST FOR:
    120 V MAINS IN PUSH-PULL
    CONFIGURATION;
    277 V MAINS IN HALF BRIDGE CURRENT
    FEED CONFIGURATION.
■ SWITCH MODE POWER SUPPLIES