TEA1530T

TEA1530T/AT/AP GreenChip II SMPS control IC Rev. 01 — 30 June 2008 Product data sheet 1. General description The GreenChip II is the second generation of green Switched Mode Power Supply (SMPS) controller ICs. Its high level of integration allows the design of a cost effective power supply with a very low number of external components. The TEA1530(A) (TEA1530T, TEA1530AT and TEA1530AP) can be used in fixed frequency converter designs for low voltage, high current applications. At low power (standby) levels, the system operates in cycle skipping mode which minimizes the switching losses during standby. The proprietary high voltage BCD800 process makes direct start-up possible from the rectified universal mains voltage in an effective and green way. A second low voltage BICMOS IC is used for accurate, high speed protection functions and control. The TEA1530(A) enables highly efficient and reliable supplies to be designed easily. 2. Features 2.1 Distinctive features I Universal mains supply operation, 70 VAC to 276 VAC. I High level of integration, resulting in a very low external component count. I Fixed frequency operation. 2.2 Green features I Cycle skipping mode at very low loads; input power < 300 mW at no-load operation for a typical adapter application. I On-chip start-up current source. 2.3 Protection features I I I I I I I Safe restart mode for system fault conditions. Undervoltage protection (foldback during overload). IC OverTemperature Protection (OTP) (latched). Lo...