description The TEA152x family STARplug+ is a Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal mains. It is implemented in the high-voltage EZ-HV SOI process, combined with a low-voltage BiCMOS process. The device includes a high-voltage power switch and a circuit for start-up directly from the rectified mains voltage. A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic power plug concept possible. In its most basic version of application, the TEA152x family acts as a voltage source. Here, no additional secondary electronics are required. A combined voltage and current source can be realized with minimum costs for external components. Implementation of the TEA152x family renders an efficient and low cost power supply system. 2. Features s Designed for general purpose supplies up to 30 W s Integrated power switch: x TEA1520: 48 ; 650 V x TEA1521: 24 ; 650 V x TEA1522: 12 ; 650 V x TEA1523: 6.5 ; 650 V s Opera