RT9478M Description
The RT9478M is a 4-switch bidirectional buck-boost Narrow Voltage DC (NVDC) charge controller, designed to charge 2- to 4-cell batteries from a wide range of DC power sources, including USB-C Power Delivery (PD) sources, conventional AC-DC charger adapters, and mobile batteries. The device’s SMBus serial munication interface allows for flexible programming of various parameters, including charging current, charging...
RT9478M Key Features
- Programmable Frequency: 720kHz/800kHz/1.2MHz
- Wide Input Voltage Range from 3.8V to 24V
- Average Input Current Regulation (AICR)
- Minimum Input Voltage Regulation (MIVR)
- Support 10m and 5m Sensing Resister
- High Accuracy for 2% Battery Charge Current
- Wide Battery Regulation Voltage Range from 5V
- Support USB On-The-Go (OTG)
- 5V NMOSFET Gate Driver
- 8-Bit A/D Converter for Monitor Functions