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RT7205AL Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT7205AL Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 36 page  RT7205A ® DS7205A-00 February 2018 www.richtek.com © Copyright 2018 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Applications l Travel Adaptors with Fast Charge Protocols (e.g., FCP, SCP and AFC) l Travel Adaptors with USB Type-C Control (e.g., 5V/1.5A and 5V/3A) Programmable SMPS and USB Type-C Controller Features l l l l l Protocols Supported } }} }} SCP, FCP, AFC and Proprietary Protocols } }} }} USB Type-C l l l l l Highly Integrated } }} }} Embedded MCU with an Mask-ROM of 16kB, an OTP-ROM of 8kB, and an SRAM of 0.75kB } }} }} Built-in Synchronous Rectifier Driver and Controller } }} }} Built-in Charge Pump for a Wide VDD Operation Range of 3V to 12V } }} }} Built-in Shunt Regulator for Programmable Constant-Voltage and Constant-Current Control } }} }} Programmable Cable Compensation } }} }} BLD Pin for Quick Discharge of Output Capacitor } }} }} USBP Pin for Direct Drive of External Blocking N-MOSFET } }} }} Power-Saving Mode in Standby Mode l l l l l Protection } }} }} Adaptive Over-Voltage Protection } }} }} Adaptive Under-Voltage Protection } }} }} Firmware-Programmable Over-Current Protection } }} }} Firmware-Programmable Over-Temperature Protection General Description The RT7205A 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 RT7205A 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. Ordering Information Note : Richtek products are : } RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. } Suitable for use in SnPb or Pb-free soldering processes. RT7205A Package Type QW : WQFN-24L 4x4 (W-Type) (Exposed Pad-Option 2) Lead Plating System G : Green (Halogen Free and Pb Free) RT7205A Version (Refer to Version Table) - Programmed Firmware Code AABBX AA : Application Code BB : Model Code X : Customer Approved Version Code Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. |
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