TEA1533AT

INTEGRATED CIRCUITS DATA SHEET TEA1533T; TEA1533AT GreenChipTMII SMPS control IC Product specification Supersedes data of 2002 May 31 2002 Aug 23 Philips Semiconductors Product specification GreenChipTMII SMPS control IC FEATURES Distinctive features Universal mains supply operation (70 to 276 V AC) High level of integration, giving a very low external component count. Green features Valley or zero voltage switching for minimum switching losses Efficient quasi-resonant operation at high power levels Frequency reduction at low power standby for improved system efficiency (<3 W) Cycle skipping mode at very low loads; Pi <300 mW at no-load operation for a typical adapter application On-chip start-up current source. Protection features Safe restart mode for system fault conditions Continuous mode protection by means of demagnetization detection (zero switch-on current) Accurate and adjustable overvoltage protection (latched in TEA1533T, safe restart in TEA1533AT) Short winding protection Undervoltage protection (foldback during overload) Overtemperature protection (latched in TEA1533T, safe restart in TEA1533AT) Low and adjustable overcurrent protection trip level Soft (re)start Mains voltage-dependent operation enabling level. APPLICATIONS TEA1533T; TEA1533AT Besides typical application areas, i.e. adapters and chargers, the device can be used in TV and monitor supplies and all applications that demand an efficient and cost-effective solution...