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S4120MB

Sample application

Sketch

S4120MB is a CCT control chip with memory cellsinternal, which can store the state after power downfor long time. lt sets a state-switching-window timeTsw (Typ 6.4S) timed by internal clock. If the OFF timeexceeds the TSW time, the chip will display the last CCTstate before power down when turn on the light nexttime, or it will switch to the next CCT state.

Advantage

Three states loop: L1-L2-(L1+L2)/2

Integrates memory cell to store state

State storage time over 10 years

Switching times can reach over 100000times (memory functions well)

Driving MOSFET or Thyristor

Switching ON/OFF twice within 1S to reset

States switching window time is 6.4S

Built-in voltage limiting circuit for wide output power range

Available in SOT23-6 Package

Application area