具有主动式PFC的初级调整定电压输出PWM控制器

RT7339P是具有主动式功率因数校正功能的定电压输出PWM控制器，设计目的是满足线路电流谐波调节的需求。它采用准谐振模式进行工作，转换效率比较高。通过使用初级侧调整方式，RT7339P在完成精确的输出电压控制时无需使用次级侧的分流式调节器和光电耦合器，减少了元件数量，降低了成本，节省了板面空间。
RT7339P可通过使用外接耗电N-MOSFET实现快速启动和超低的待机功耗。
RT7339P使用具有400mA/-500mA电流吐纳能力的图腾柱门极驱动器，MOSFET驱动能力强，可有效提高转换效率。它还同时具有驱动MOSFET导通过程中的软驱动特性，可有效改善EMI辐射特性。
• 电压调节精度高\n• 功率因数校正\n• 优化的THD性能（THD ►输出过压保护►输出短路保护►输入欠压/过压保护►输出二极管短路保护►VDD过压保护►VDD欠压保护►外围/内部过热保护►逐周期高/低线电流限制保护（0.5V/0.6V）;

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55 watt; Hi-Pro Spiral Compact Fluorescent; 5000K; 82 CRI; Medium base; 120 volts

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GENERAL DESCRIPTION The AD7339 is a composite IC that contains both DAC and ADC functions. The device includes an 8-bit parallel A-to-D converter. Two 8-bit parallel DACs are also included as are two serial control DACs. These serial DACs are 8-bit DACs. The AD7339, which operates with a single

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AD

亚德诺