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RT9481 Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT9481 Datasheet(HTML) 5 Page - Richtek Technology Corporation |
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5 / 41 page  RT9481 Copyright © 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS9481-00 June 2015 www.richtek.com 5 regulated until the junction temperature drops under the falling threshold. CC/CV/TR Multi Loop Controller There are constant current loop, constant voltage loop and thermal regulation loop to control the charging current. Base Circuits Base circuits provide the internal power, VDDA and reference voltage and bias current. Buck Regulator for Charging and Boost Regulator as BOOST The multi-loop controller controls the operation of charging process and current supply to the system. It also controls the circuits as a Boost converter for BOOST applications. USB Charger Detection The RT9481 detects USB Charger (Standard Charger Port, Charging Downstream Port and Dedicated Charger Port) via D+ and D- pins. I 2C Controller The key parameters of charging and BOOST are programmable through I2C commands. |
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