ATC AT3273
AT3273 is a highly integrated current mode PWM control IC optimized for high performance low standby power offline flyback converter applications.DESCRIPTION
To meet the international power conservation requirements, optimized green mode is integrated to improve the efficiency at light or no load conditions with no audible noise. Slope compensation is integrated to ensure the stability at high load. Lead edge blanking is integrated to prevent the false trigger at the transition of the switch. Soft switching control at the gate drive can improve the EMI performance of the power supply. The Gate-drive output is clamped at 12V to protect the power MOS.FEATURES
●Frequency jitter function to improve EMI performance of power supply●No-audible-noise green mode Control
● Multi operation mode: Fixed-frequency CCM, green mode and burst mode.
● Internal Slope Compensation
● Low VDD Startup Current and Low Operating Current
● Leading Edge Blanking
● UVLO
● Gate Max Output Voltage Clamp at 12V
● Overload Protection (OLP).
● Over temperature Protection (OTP).
● Line Compensation Over Current Protection (OCP)
APPLICATIONS
Offline AC/DC flyba...