LD7792
Description
The LD7792 is the enhancement version of LD7790, the audible noise produced during start-up & light load is greatly reduced and the THDi is also further improved. LD7792 features transition mode Power Factor Correction (PFC) controller and Quasi-Resonant (QR) current mode controller for cost effective and fewer external ponents design of high power application.
The intelligent PFC switching on/off, zero current detection (ZCD) and frequency limitation mechanism enable a better efficiency under any load conditions.
The device is also integrated several functions of protection, such as X-CAP discharge, brown-in/out protection, Over Load protection (OLP), Over Temperature Protection (OTP), Over Voltage Protection (OVP) and Over Current Protection (OCP) with high / low line pensation. Therefore it can protect the system from damage due to occasional failure.
The LD7792 is available in a SOP-16 package.
Typical Application
Features
- Integrated PFC and QR Flyback Controller
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