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High Voltage with Two-Level Frequency Green-Mode PWM Controller
LD5761
05/28/2015
REV: 01
General Description
The LD5761 is a Green Mode PWM IC which is built-in with brown-in/out functions in a SOP-7/SOP-8 package. The device could minimize the component counts, circuit space, and reduces the overall material cost of power applications.
The two-level frequency of operation enables excellent performance and high efficiency at nominal line. While in low line, just operate in high-level frequency to reduce BMAX. Without changing transformer design, the energy loss is perfectly minimized.