RK816-2中文资料瑞芯微数据手册PDF规格书

Feature

Input range: 3.8V ~ 5.5V for USB input 2.7V~4.5V for BAT input

Switch mode bi-directional Li-ion battery charger providing charging current up to 2.4A, 2MHz switching frequency for charger and boost

Power path controller with 4A current path

Accurate battery fuel gauge

Real time clock RTC

Low standby current of less than 45uA (at 32KHz clock frequency)

2MHz switching frequency for buck converters

Fast transient response due to the current mode architecture

Internal frequency compensation and soft start

Programmable output voltage and power up/power down sequence through I2C interface

Proprietary circuit architecture achieving high efficiency

Internal discharge path in off state for bucks and LDOs (configurable through I2C interface)

Power channels:

 CH1: Synchronous buck converter, 2A max

 CH 2: Synchronous buck converter, 2A max

 CH 3: Synchronous buck converter, 1A max

 CH 4: Synchronous buck converter, 1A max

 CH 5: Synchronous boost converter, 0.8A max

 CH 6, CH7, CH9, CH10, CH11: low drop out voltage regulator, 300mA max

 CH 8: low noise, high PSRR low drop out voltage regulator, 100mA max

 CH 12 OTG switch, 0.8A max

Fixed and programmable power up/power down sequences

package: 5mm x 5mm QFN40