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Most Li-Ion applications can fast-charge with currents between 0.5C and 1C (where C is the
Design Support ▶ Technical Documentation ▶ Switching Battery Chargers
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RT9397BF is a highly integrated step-up charge pump and inverting charge pump to generate positive and negative
Products ▶ LCD & OLED Display Power ▶ RT9397BF
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RT9399 is a highly integrated step-up charge pump and inverting charge pump to generate positive and negative
Products ▶ PMICs ▶ RT9399
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Programmable charging current Adjustable end-of-charge(EOC) current Thermal feedback optimizing charge rate WDFN-8L 2x3 & SOT-23-6 package
https://www.richtek.com/battery-management/en/linear.html
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MOSFET in such a way that the charge current follows the required battery charge operation modes: pre-conditioning - constant current
https://www.richtek.com/selection-guide/en/selection-charger.html
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CHG_S PGOOD 125 C Timer TIMER Pre-Charge Phase Fast Charge Phase Constant Voltage Phase & Standby Phase Re-Charge Phase Programmed Charge Current
https://www.richtek.com/assets/product_file/RT9503/DS9503-03.pdf
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5.0V/4.5V 0.1A out 2mA 1MHz → Charge pump SOT-23-6 TSOT-23-6 WDFN2x2-6 RT9277C 2.5V-5.5V
https://www.richtek.com/~/media/AN PDF/SG012_03_EN.pdf
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Chip Enable 0.1uF to 10uF Pre-Charge Phase Fast Charge Phase Constant Voltage Phase & Standby Phase Re-Charge Phase Programmed Charge Current
https://www.richtek.com/assets/product_file/RT9502/DS9502-02.pdf
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7A Single Cell Smart Cap Divider and Direct Charge Charger with 8-Channel ADC, USB BC 1.2
https://www.richtek.com/assets/product_file/RT9756/DS9756-01.pdf
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I CHG_P = K CHG_P / R ISET 30 60 90 AΩ BAT Pre-Charge Threshold VBAT falling 2.7 2.8 2.9 V BAT Pre-Charge Threshold Hysteresis -- 200 -- mV Termination Current Ratio
https://www.richtek.com/~/media/EVB PDF File/EVB_RT9527GQW/EVB_RT9527GQW-00_EN.pdf
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