DESCRIPTION

· The AP3102/V/L series is a green-mode PWM controller designed for low start-up current.
· It features externally programmable switching frequency with tight trimming and frequency dithering to enhance EMI performance.
· The IC enters green mode and skip mode at low or zero load to minimize switching loss, with skip mode operating at about 20kHz to avoid audible noise and reduce standby loss.
· Includes features like Leading-Edge Blanking (LEB), internal slope compensation, line compensation, and multiple protection functions.
· Available in three versions with different protection options: AP3102, AP3102V, and AP3102L, all in SO-8 package.

FEATURES

· Bi-CMOS process ensuring excellent performance.
· Very low start-up current: typically 5 μA.
· Current mode control and non-audible-noise green mode control.
· Frequency foldback for high average efficiency and internal slope compensation.
· Programmable brownout protection and line compensation.
· Comprehensive protection features including VCC over voltage, line over voltage, over temperature, and over load protections.
· Internal soft start function and 500mA gate output current capability.
· Fully RoHS compliant, lead-free, and halogen and antimony free.

APPLICATIONS

· Switching AC-DC adapters.
· LCD monitor and TV power supplies.
· Open frame switching power supplies.