LD7591S controller equivalent, transition-mode pfc controller.
z Transition mode of PFC pre-regulator z Voltage mode control z Programmable max. on-time z Low Startup Current (<30μA) z.
It provides functions of low startup current, over voltage protection, open feedback protection, disable function, over.
The LD7591S is a voltage mode PFC controller operating in transition mode, with several integrated functions of protection, such as OVP, OCP, and Brown-in protection. It reduces the components counts and is available in a SOP-8 or DIP-8 package. Thos.
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