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Product Spec Banner
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RT7781S 是一款高效能电流模式 PWM 控制器，采用立锜专有的 PowerZero 技术。PowerZero 提供优异的绿色电源解决方案，特别适用于轻载与无载条件。整合式高压元件可实现快速启动功能，无需外部启动电阻。此外，它包含 brown-in 与 brown-out 侦测功能。RT7781S 提供完整的保护功能，包括内部过温保护 (OTP) 与 VDD 过压保护 (OVP)。它亦具备二次侧整流器短路保护 (SRSP) 与电流感测脚位 (CS) 开路保护。这些保护功能可简化电源供应器设计并提升其可靠性。建议接面温度范围为 −40°C 至 125°C，环境温度范围为 −40°C 至 85°C。
RT7781S 电路图
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<div class="spec-list"><ul class="lv1"><li>PowerZero Technology - Integrated 700V Start-Up Device - Brown-In and Brown-Out Detection </li><li>Low No-Load Input Power (<50mW) </li><li>Driver Capability: 400mA/-400mA </li><li>ACD Pin for TV Applications </li><li>Frequency Jittering Function </li><li>Soft Driving for Reducing EMI Noise </li><li>VDD Overvoltage Protection </li><li>Internal Over-Temperature Protection </li><li>Secondary Rectifier Short-Circuit Protection </li><li>CS Pin Open-Circuit Protection </li></ul></div>
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RT7781S 订购信息
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RT7781S
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RT7781S
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<div class="spec-list"><ul class="lv1"><li>Notebook Adapters </li><li>Switching AC-DC Adapters with Low No-Load Input Power </li><li>TV and Monitor Applications </li><li>Open Frame Power Supply </li></ul></div>
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