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The RT7203 is a programmable controller with integration of VOOC protocol, and the built-in feedback compensation. An internal MCU is designed in to handle various proprietary protocols via the D+/D- interface. This controller is a specific design with high integration for off-line AC-DC converters possessing high power density. The RT7203 integrates a constant voltage loop, a constant current loop and the built-in compensation in feedback control to better regulate the design, this IC not only possesses a feature of component saving via its feedback compensation, but also provides an enhanced transient response and safety protections via the integration of diverse functions. In applications of high precision control, dual operational amplifiers are adopted in the Digital-to-Analog Converter (DAC) to provide reference voltages used for regulation of voltage loop and current loop in programming the constant voltage (CV) and the constant current (CC), respectively.
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<div class="spec-list"><ul class="lv1"><li>Protocol Support <ul class="lv2"> <li></li><li>Proprietary Protocols </li></ul> </li><li>Highly Integrated <ul class="lv2"> <li></li><li>Suited for 3.3V to 13V VDD Range </li><li>Embedded MCU with an Mask ROM of 20kB, an OTP-ROM of 4kB, and an SRAM of 0.75kB </li><li>Built-in Shunt Regulators for Constant Voltage and Constant Current Control </li><li>Built-in Feedback Compensation </li><li>Built-in Temperature Sensing </li><li>Built-in 10-bit Analog-to-Digital Converter </li><li>VDD Pin for Quick Discharge of Output Capacitor </li><li>< 3mA Operating Current in Normal Mode </li><li>< 1.5mA Operating Current in Sleep Mode </li><li>< 900μA Operating Current in Green 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>D+/D- Over-Voltage Protection </li><li>Firmware-Programmable Contant Current 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 Adapters with VOOC Protocol </li></ul></div>
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