Samsung LW32A23W Service Manual page 13

Block Diagrams
2. TFC : Time fix controller (Lighter load area during stand-by) TFC operation forcibly outputs to DRV an
ON time (T2) that is longer than the fixed Ton (T1) inside the MIC to control the OFF time for stabilizing
the output voltage. If MBS operation under light load moves toward the light load area again, the MBS
operation is released at Ton=350 us and shifted to the TFS operation.
3. OLP
LW32A23W/LW40A23W