SMART PRIMARY CONTROLLER

L6668 is a current-mode primary controller IC, designed to build single-ended converters. The IC drives the system at fixed frequency at heavy load and an improved Standby function causes a smooth frequency reduction as the load is progressively reduced. At very light load the device enters a special operating mode (burst-mode with fixed, externally programmed peak current) that, in addition to the on-board High-Voltage start-up and the very low quiescent current, helps keep low the consumption from the mains and be compliant with energy saving regulations. To allow meeting compliance with these standards in power-factor-corrected systems too, an Interface with the PFC controller is provided that en- ables to turn off the pre-regulator when the load level falls below a threshold. By STMicroelectronics
L6668 's PackagesL6668 's pdf datasheet
L6668TR




L6668 Pinout, Pinouts
L6668 pinout,Pin out
This is one package pinout of L6668,If you need more pinouts please download L6668's pdf datasheet.

L6668 Application circuits
L6668 circuits
This is one application circuit of L6668,If you need more circuits,please download L6668's pdf datasheet.


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