TEA1523

INTEGRATED CIRCUITS DATA SHEET TEA152x family STARplugTM Product specification File under Integrated Circuits, IC11 2000 Sep 08 Philips Semiconductors Product specification STARplugTM FEATURES Designed for general purpose supplies up to 50 W Integrated power switch: – TEA1520: 48 Ω; 650 V – TEA1521: 24 Ω; 650 V – TEA1522: 12 Ω; 650 V – TEA1523: 6.5 Ω; 650 V – TEA1524: 3.4 Ω; 650 V. Operates from universal AC mains supplies (80 to 276 V) Adjustable frequency for flexible design RC oscillator for load insensitive regulation loop constant Valley switching for minimum switch-on loss (not implemented in TEA152xAJM versions) Frequency reduction at low power output makes low standby power possible (<100 mW) Adjustable overcurrent protection Under voltage protection Temperature protection Short circuit winding protection Simple application with both primary and secondary (opto) feedback Available in 8-pin DIP, 14-pin SO and 9-pin DBS packages. GENERAL DESCRIPTION The TEA152x family 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. APPLICATIONS TEA152x family A dedicated circuit for valley switching is built in (not implemented in TEA152xAJM versions), which makes a very efficien...