Full-bridge PWM Controllers with Integrated MOSFET Gate Drivers

摘要

NATIONAL SEMICONDUCTOR CORP. introduced the industry's first full-bridge pulse width modulation (PWM) controllers to integrate all four primary-side bridge MOSFET sate drivers. The LM5045 and LM5046 deliver higher efficiency and higher power density in quarter-brick and eighth-brick power modules used in various high input voltage communications infrastructure applications. Members of National's PowerWise® energy-efficient product family, the LM5045 and LM5046 PWM controllers ease the design of full-bridge topology-based power converters into small form factor power supplies by reducing the number of external power components needed with existing full-bridge solutions.