Key Technical Specifications
- Charging Current: Up to 4.5-A fast charging capabilities.
- High Efficiency: Achieves 92% efficiency at 2 A and 90% efficiency at 4 A.
- Control Interface: Uses an I²C serial interface for dynamic system settings and monitoring.
- Power Path: Features a Narrow VDC (NVDC) power path architecture that keeps the system operating even with a deeply discharged or missing battery.
- Input Support: Fully compliant with USB 2.0 and USB 3.0 power specs, supporting standard USB host ports, charging ports, and high-power DC adapters.
- Physical Package: Usually comes in a 24-pin QFN/VQFN package.
Common Applications & Device Repair
In the electronics repair industry, this chip is frequently replaced to fix “no charging,” “fake charging,” or power failure issues. It is standard equipment on several popular mobile devices, including:
- Xiaomi/Redmi: Redmi Note 3, Redmi Note 4, and Meizu devices.
- Huawei: Huawei P6, P7, and Honor/Glory 8.
- Lenovo: Lenovo K900.
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