Light emitting diode load driving apparatus

A light emitting diode (LED) load driving apparatus, comprising:

• a power conversion circuit configured to receive an input voltage and drive an LED load in response to a pulse width modulation signal;
• a control chip coupled to the power conversion circuit, wherein the control chip comprises:
• a control core circuit operated under a system voltage to provide the pulse width modulation signal for controlling an operation of the power conversion circuit, wherein the control core circuit is inactivated during a power-off period and restarted during a power-on period;
• and
• a memory unit coupled to the control core circuit and operated under the input voltage, wherein the memory unit is configured to:
• store a dimming operation data provided by the control core circuit and before the control core circuit is inactivated during the power-off period;
• and
• provide the stored dimming operation data during the power-on period to the control core circuit so as to make the control core circuit perform a corresponding dimming operation relating to the LED load.