Technical Overview & Specifications
According to the official Silicon Mitus SM5414 Datasheet, the chip features the following parameters:
- Package Type: 25-bump Wafer Level Chip Scale Package (WLCSP / BGA) measuring 2.08 mm x 2.08 mm.
- Maximum Charge Current: Supports up to a 2.5 A load current.
- Input Tolerance: Up to 20V maximum withstanding input voltage.
- Dual-Path Output: Features an intelligent power-path that can power up the system even if the phone has a completely dead or missing battery.
- Control Interface: Operates via a 400 kHz I²C compatible interface to program parameters like fast charge current, regulation voltage, and thermal thresholds.
- Integrated Protections: Input/output overvoltage protection (OVP), thermal regulation, reverse leakage protection, and Adaptive Input Current Limit (AICL).
- USB OTG Support: Features a boost mode operation providing an output voltage of 6.0V to 6.2V at 200mA.
Common Use Cases & Smartphone Compatibility
Technicians use this IC on smartphone motherboards to resolve board-level power failures. It is frequently found in models from Oppo (e.g., Oppo A5s), Meizu (e.g., M3 Note), Noblue Note 3, Huawei, and LG.
Replacing this IC typically resolves the following hardware issues:
- Phone not charging or slow/unstable charging
- Battery percentage percentage not increasing while plugged in
- Intermittent charging drops or power detection faults
- Device overheating strictly near the charging/PMIC section of the board.
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