TEA1753T TEA1753 SOP-16 LCD power 

ORIGINAL

GreenChip III SMPS Control IC
The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The TEA1753T combines a controller for Power Factor Correction (PFC) and a flyback controller. Its high level of integration allows the design of a cost-effective power supply with a very low number of external components. The special built-in green functions provide high efficiency at all power levels. This applies to quasi-resonant operation at high power levels, quasi-resonant operation with valley skipping, as well as to reduced frequency operation at lower power levels. At low power levels, the PFC switches off to maintain high efficiency.

On-chip start-up current source Power down functionality for very low standby power

Valley/zero voltage switching for minimum switching losses (NXP patented) Frequency limitation to reduce switching losses PFC is switched off when a low load is detected at the flyback output

Valley switching for minimum switching losses (NXP patented) Frequency reduction with adjustable minimum peak current at low power operation to maintain high efficiency at low output power levels