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The RT7205 is a highly integrated and programmable SMPS controller at the secondary side. It provides the necessary functions and protections for high efficient and high power density off-line AC-DC converter designs. The RT7205 integrates an MCU to handle various proprietary protocols (e.g., FCP, SCP and AFC) through D+/D- interface and also support USB Type-C via CC1/CC2 pins. An internal synchronous rectifier controller can optimize efficiency and provide safe operate in both continuous-conduction mode (CCM) and discontinuous-conduction mode (DCM) even in the condition of a wide output voltage range of 3V to 12V. Dual operational amplifiers with respectively programmable reference voltages are included for voltage-loop and current-loop regulation to provide programmable constant-voltage (CV) and constant-current (CC) regulation in high precision.
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<div class="spec-list"><ul class="lv1"><li>Protocols Supported <ul class="lv2"> <li></li><li>SCP, FCP, AFC and Proprietary Protocols </li><li>USB Type-C </li></ul> </li><li>Highly Integrated <ul class="lv2"> <li></li><li>Embedded MCU with an Mask-ROM of 16kB, an OTP-ROM of 8kB, and an SRAM of 0.75kB </li><li>Built-in Synchronous Rectifier Driver and Controller </li><li>Built-in Charge Pump for a Wide V<sub>DD</sub> Operation Range of 3V to 12V </li><li>Built-in Shunt Regulator for Programmable Constant-Voltage and Constant-Current Control </li><li>Programmable Cable Compensation </li><li>BLD Pin for Quick Discharge of Output Capacitor </li><li>USBP Pin for Direct Drive of External Blocking N-MOSFET </li><li>Power-Saving Mode in Standby Mode </li></ul> </li><li>Protection <ul class="lv2"> <li></li><li>Adaptive Over-Voltage Protection </li><li>Adaptive Under-Voltage Protection </li><li>Firmware-Programmable Over-Current Protection </li><li>Firmware-Programmable Over-Temperature Protection </li></ul> </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Travel Adaptors with Fast Charge Protocols (e.g., FCP, SCP and AFC) </li><li>Travel Adaptors with USB Type-C Control (e.g., 5V/1.5A and 5V/3A) </li></ul></div>
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