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RT7789B 系列是一款增强型高效率多模式 PWM Flyback 控制器，采用立锜专有的 PowerZero<sup>TM</sup> 与 SmartJitter<sup>TM</sup> 技术。创新的 PowerZero<sup>TM</sup> 技术具备集成式 HV 器件，可提供优异的绿色电源解决方案，而 SmartJitter<sup>TM</sup> 技术可降低绿色模式下开关式电源的 EMI 辐射，并消除因频率抖动所造成的输出纹波。此外，RT7789B 系列具备多模式控制机制，可从连续导通模式 (CCM) 运行至具谷底开关的不连续导通模式 (DCM)，以实现高效率与最佳性能。RT7789B 是一款用于 Flyback 转换器的电流模式 PWM 控制器，集成完整且可编程的保护功能，包括 brown-in/brown-out 保护、VDD 过压保护 (VDD OVP)、输出过压与欠压保护 (Output OVP and UVP)、次级侧整流器短路保护 (SRSP)，以及外部过温保护 (External OTP)。对于恒定输出功率调节，可使用连接至 CS 引脚的电阻，在通用输入电压范围内实现精准的线路补偿。凭借这些功能，RT7789B 可让用户针对各种 AC-DC 转换应用实现具成本效益且紧凑的设计。
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<li class="mv5"> Proprietary PowerZero<sup>TM</sup> Technology<br />► Integrating a 700V Start-up Device<br />► Brown-In/Brown-Out Protection<br /></li><li class="mv5"> Proprietary SmartJitter<sup>TM</sup> Technology<br />► Reducing EMI Emissions of SMPS<br />► Eliminating Frequency-Jittering-Induced Output Ripple<br /></li><li class="mv5"> Operating in Continuous-Conduction Mode (CCM), Discontinuous-Conduction Mode (DCM), and DCM with Valley Switching<br /></li><li class="mv5"> Accurate Over-Current Protection (OCP)<br /></li><li class="mv5"> Programmable Line Compensation<br /></li><li class="mv5"> Programmable Output OVP and UVP<br /></li><li class="mv5"> Programmable External OTP<br /></li><li class="mv5"> Driver Capability : 300mA/-300mA<br /></li><li class="mv5"> High Noise Immunity<br /></li><li class="mv5"> RoHS Compliant and Halogen Free</li>
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<li class="mv5"> Switching AC-DC Adapter<br /></li><li class="mv5"> NB Adapter<br /></li><li class="mv5"> Printer Adapter</li>
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