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The RT7207K is a programmable controller with integrated synchronous rectification control. Its internal MCU handles various proprietary protocols via the D+/D- interface and supports USB PD Type-C via the CC1/CC2 pins. </p>The RT7207K provides high integration for high power density off-line AC-DC converter designs. In addition to saving external components, and through the built-in synchronous rectification controller and integration of diverse functions and protections, it not only improves efficiency but also enhances safety. </p>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 3.0V to 21V. </p>Dual operational amplifiers with respectively the digital-to-analog converter (DAC) 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.</p>
RT7207K Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Protocol Support <ul class="lv2"> <li></li><li>USB PD2.0/PD3.0 and PPS </li><li>Proprietary Protocols </li></ul> </li><li>Highly Integrated <ul class="lv2"> <li></li><li>Embedded MCU with an Mask ROM of 32kB, an OTP-ROM of 8kB, and an SRAM of 2kB </li><li>Built-in Synchronous Rectifier Controller and Driver </li><li>Built-in Charge Pump for a Wide V<sub>DD</sub> Operation Range of 3V to 21V </li><li>Built-in Shunt Regulators for Programmable Constant-Voltage and Constant-Current Control </li><li>Built-in 10-bit Analog-to-Digital Converter (ADC) </li><li>Programmable Cable Compensation </li><li>BLD Pin for Quick Discharge of Output Capacitor </li><li>VBUS Pin for Detection VBUS Voltage and Quick Discharge of VBUS 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 Output Over-Voltage Protection </li><li>Adaptive Under-Voltage Protection </li><li>CC1/CC2/D+/D- Over-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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RT7207K Ordering Information
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<div class="spec-list"><ul class="lv1"><li>USB PD Type-C or Proprietary Protocols (e.g., FCP, SCP and AFC)Chargers/Adapters for Smart Phones, NBs, Tablets and All Other Electronics. </li><li>USB PD Extension Cores with Offline AC-DC Converters. </li></ul></div>
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