TEA1753LT
description
The TEA1753LT is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The TEA1753LT bines 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 ponents.
The special built-in green functions provide high efficiency at all power levels. This efficiency 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.
During low-power conditions, the flyback controller switches to frequency reduction mode and limits the peak current to an adjustable minimum value. This mode ensures high efficiency at low-power and good standby power performance while minimizing audible noise from the transformer.
The controller can be switched to the power-down...
