TEA1533T and TEA1533AT are high integrated green power management chips, mainly used in adapter and charger products. They have a wide input voltage range, high efficiency and complete protection functions.
The document is a datasheet for the Philips GreenChip II SMPS control IC, specifically models TEA1533T and TEA1533AT. These integrated circuits are designed to operate directly from rectified universal mains voltage (70 to 276 V AC) with high integration levels to minimize external components.
The device supports universal mains supply operation starting at 70 V AC.
It activates a cycle skipping mode when power is below 300 mW at no-load.
The converter will stop operating immediately because a fault condition is assumed.