DESCRIPTION
Consequently, opto-coupler and A431 could be eliminated. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below. Typical lCC/CV Curve In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs at CS pin. In CV control, multi-mode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built-in cable drop compensation. Device operates in PFM in CC mode at large load condition and it operates in PWM with frequency reduction at light/medium load. The AP8022A consumes very low operation current. It achieves less than 75mW standby power to meet strict s standby power standard. AP8022A offers comprehensive protection coverage with auto-recovery feature including Cycle-by-Cycle current limiting, VDD over voltage protection, feedback loop open protection, built-in leading-edge blanking, VDD under voltage lockout (UVLO), OTP etc.
AiT Semiconductor
