AN250第二代IC开关模式控制器，催频功率MOS驱动优化

AN250第二代IC开关模式控制器，催频功率MOS驱动优化

APPLICATION NOTE

A SECOND-GENERATION IC SWITCH MODE CONTROLLER
OPTIMIZED FOR HIGH FREQUENCY POWER MOS DRIVE

INTRODUCTION at higher speeds with resultant lower overall system
Since the introduction of the SG1524 in 1976, inte- costs.
grated circuit controllers have played an important In order to be able to take full advantage of the spe-
role in the rapid development and exploitation of ed capabilities of power MOS, it was necessary to
high-efficiency switching power supply technology. provide high peak currents to the gate during turn-on
The 1524 soon became an industry standard and and turn-off to quickly charge and discharge