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Product Spec Banner
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The RT7202KLA is a programmable controller with high integration, including the internal feedback compensation and V2 (regulated voltage for internal MCU) inside. An internal MCU is designed to meet proprietary protocols via the CC1/CC2/D+/D- interface. This controller is a specific design for off-line AC-DC converters to achieve the high power density of a fast charge system. The RT7202KLA can share the output power through Master/Slave I<sup>2</sup>C communication. The built-in feedback compensation not only reduces the external components, but also enhances the transient response. For the safety consideration, the RT7202KLA provides comprehensive protections, including LPS protection and accurate internal Over-Temperature Protection (OTP).<br /> In applications requiring high-precision control, a dual operational amplifier is adopted in the Digital-to-Analog Converter (DAC) to serve reference voltages used for regulation of voltage loop and current loop in programming the constant voltage (CV) and the constant current (CC).
RT7202KLA 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>UFCS </li><li>Proprietary Protocols </li></ul> </li><li>Highly Integrated <ul class="lv2"> <li></li><li>Suited for 3V to 22V VDD Range </li><li>Embedded MCU with a Mask ROM of 32kB, an OTP-ROM of 16kB, and an SRAM of 2kB </li><li>Built-in Shunt Regulators for Constant Voltage and Constant Current Control </li><li>Built-in Feedback Compensation with Soft Start for LPS </li><li>Built-in V<sub>CONN</sub> Power (5V/20mA) </li><li>VDD Pin for Quick Discharge of Output Capacitor </li><li>Supported High-Side Current Sensing </li><li>Supported Linear Cable Compensation </li><li>Supported Master/Slave I<sup>2</sup>C Communication </li><li>Supported VIN and LPS Detection </li><li>< 6.6mA Operating Current in Normal Mode </li><li>< 2.2mA Operating Current in Sleep Mode </li><li>< 1150μA 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>CC1/CC2/D+/D-/RT Over-Voltage Protection </li><li>Firmware-Programmable Over-Current Protection </li><li>Firmware-Programmable Constant Current Protection </li><li>Firmware-Programmable Over-Temperature Protection </li><li>Firmware-Programmable LPS Protection </li><li>Internal Over-Temperature Protection </li></ul> </li></ul></div>
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RT7202KLA Ordering Information
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<div class="spec-list"><ul class="lv1"><li>USB Type-C Controller in Source Application for Single-Port or Multi-Port Charger/Adapter of Smartphone, Tablet, Notebook, and Other Electronics </li><li>USB Type-C Controller in Sink Application for IoT Devices of Power Over Ethernet, Smart Speaker, Projector, and Other Electronics </li></ul></div>
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