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RT7880 是一款 USB Type-C Power Delivery (USB-C PD) 与 PWM 升降压控制器，透过特定功能的高度整合与灵活性，适用于 USB PD provider 应用。此 IC 内嵌 ARM Cortex<sup>TM</sup>-M0 MCU，可处理通讯协定的各种功能、PWM 转换器的智慧控制、基于韧体的保护功能，以及客制化功能。此 IC 具备基于硬体的保护功能，例如电感峰值电流限制、VBUS 过压保护 (VBUS OVP)、VO 欠压保护 (VO UVP)，以及 VCONN 电流限制保护，因此这些保护功能具备更快速的响应，即使 MCU 未启动时仍可正常运作。RT7880 因此可为 USB-PD Provider 应用提供优异的 USB PD 解决方案，并具备最少外部元件与简易 PCB 布局。
RT7880 电路图
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<div class="spec-list"><ul class="lv1"><li>Support USB Type-C Power Delivery (PD) Provider Application </li><li>Type-C, USB PD and Communication Protocols <ul class="lv2"> <li></li><li>Compliant with USB PD 3.0 Specification, USB Type-C Cable and Connector Specification 1.2 </li><li>Alternate Mode and V<sub>CONN</sub> Output </li><li>Support Other Proprietary Communication Protocols through Internal MCU, DP and DM Pins </li></ul> </li><li>Integrated PWM Buck-Boost Controller <ul class="lv2"> <li></li><li>Wide Input Voltage Range : 4V to 36V </li><li>Peak-Current Mode PWM Operation </li><li>Programmable PWM Switching Frequency (200kHz to 600kHz) </li><li>Pulse-Skipping Mode for Light-Load Efficiency; Selectable Forced CCM Operation </li></ul> </li><li>AnyPower<sup>TM</sup> for Constant Voltage Output (15.6 or 23.4mV/step, typ.) and Constant Current (in 9-Bit Resolution) Output Settings </li><li>PD Safe<sup>®</sup> <ul class="lv2"> <li></li><li>Adjustable Converter Input Current Limit </li><li>Programmable VBUS OVP and VO UVP </li><li>Adjustable External OTP </li><li>VCONN1/2 Output Current Limit </li></ul> </li><li>Cable Voltage Drop Compensation for V<sub>BUS</sub> </li><li>Master and Slave I<sup>2</sup>C Interfaces </li><li>GPIOs for MUX Control or Customized Functions </li><li>Built-in Output Bleeders for Quick V<sub>BUS</sub> Discharge </li><li>Built-in Charge Pump for Driving Cost-Effective N-MOSFETs </li><li>Available in WQFN-40L 5x5 Package </li><li>Online Firmware Update via Slave I<sup>2</sup>C Interface </li><li>USB PD PD3.0/PPS Certification Passed (TID 1080016) </li></ul></div>
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RT7880 订购信息
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<div class="spec-list"><ul class="lv1"><li>Desktop PC, LCD Monitor, LCD TV </li><li>Docking Station, Portable Hard Disk </li><li>USB Car Charger, USB Power Bank </li></ul></div>
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