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RT5016CGQW Datasheet(PDF) 7 Page - Richtek Technology Corporation |
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RT5016CGQW Datasheet(HTML) 7 Page - Richtek Technology Corporation |
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7 / 68 page  RT5016C 7 DS5016C-02 November 2016 www.richtek.com Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. © Operation The RT5016C is an integrated power solution for digital still cameras and other small handheld devices. It includes six DC-DC converters, a WLED driver, a RTC LDO, and a fully integrated single-cell Li-ion battery charger. CH1 : Step-Up DC-DC Converter CH1 is a step-up converter for motor driver power. The converter operates at PFM or PWM current mode which can be set by I 2C interface. CH2 : Step-Up/Down DC-DC Converter CH2 is a step-up/down converter for I/O power. The converter operates at PFM or PWM current mode which can be set by I2C interface. CH3 : Step-Down DC-DC Converter CH3 is a step-down converter for core power. The converter operates at PFM or PWM current mode which can be set by I2C interface. CH4 : Step-Down DC-DC Converter CH4 is a step-down converter for memory power. The converter operates at PFM or PWM current mode which can be set by I 2C interface. CH5 : Step-Down DC-DC Converter CH5 is a step-down converter. The converter operates at PFM/PWM current mode. CH6 : Generic LDO CH6 is a generic low voltage LDO for multiple purpose power. CH7 : WLED Driver CH7 is a WLED driver that can operate in either current source mode or synchronous step-up mode which is determined by I 2C interface control signal. CH8 : Generic LDO CH8 is a generic low voltage LDO for multiple purpose power. CH9 : Keep Alive LDO and RTC CH9 is a LDO providing a 3.05V output for real time clock. Charger Unit A Li-ion battery charger with automatic power path management is designed to operate in below modes. Pre-Charge Mode When the output voltage is lower than 2.8V, the charging current will be reduced to a ratio of fast-charge current set by A8.ISETA [3:0] to protect the battery life-time. Fast-Charge Mode When the output voltage is higher than 3V, the charging current will be equal to the fast-charge current set by A8.ISETA [3:0]. Constant Voltage Mode When the output voltage is near 4.2V and the charging current falls below the termination current for a deglitch time of 25ms, the charger will be turned off and CHG will go to high. Re-Charge Mode When the chip is in charge termination mode, the charging current gradually goes down to zero. Once the battery voltage drops to below 4.1V for 100ms, the charger will resume charging operation. |
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