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The RT7203BT is a programmable controller with integration of super charge protocols, and the built-in feedback compensation. An internal MCU is designed in to handle various proprietary protocols via the D+/D- interface. <br /><br />This controller is a specific design with high integration for off-line AC-DC converters possessing high power density. The RT7203BT 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.<br /><br />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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<li class="mv5"> Protocol Support<br /> ► Proprietary Protocols<br /> </li><li class="mv5"> Highly Integrated<br /> ► Suited for 3V to 13V VDD Range<br /> ► Embedded MCU with a Mask ROM of 16kB, an OTP-ROM of 16kB, and an SRAM of 1.5kB<br /> ► Built-In Shunt Regulators for Constant Voltage and Constant Current Control<br /> ► Built-In Feedback Compensation<br /> ► Built-In Temperature Sensing<br /> ► Built-In 10-bit Analog-to-Digital Converter<br /> ► VDD Pin for Quick Discharge of Output Capacitor<br /> ► < 3.3mA Operating Current in Normal Mode <br /> ► < 1.5mA Operating Current in Idle Mode<br /> ► < 900μA Operating Current in Green Mode<br /> </li><li class="mv5"> Protection<br /> ► Adaptive Output Overvoltage Protection<br /> ► Adaptive Undervoltage Protection<br /> ► DP/DM Overvoltage Protection<br /> ► RT Overvoltage Protection<br /> ► Firmware-Programmable Constant Current Protection<br /> ► Firmware-Programmable Overcurrent Protection<br /> ► Firmware-Programmable Over-Temperature Protection</li>
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<li class="mv5"> Travel Adapters with Fast Charge Protocols</li>
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