AT3273 Overview
AT3273 is a highly integrated current mode PWM control IC optimized for high performance low standby power offline flyback converter applications. 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 pensation is integrated to ensure the stability at high load.
AT3273 Key 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 pensation
- Low VDD Startup Current and Low Operating Current
- Leading Edge Blanking
- Gate Max Output Voltage Clamp at 12V
- Overload Protection (OLP)
- Over temperature Protection (OTP)
- Line pensation Over Current Protection (OCP)
AT3273 Applications
- Frequency jitter function to improve EMI performance of power supply -No-audible-noise green mode Control