Key Specifications & Features
- Battery Fuel Gauge: Auto-calibrates for aging batteries (State of Health tracking) by analyzing real-time voltage and current.
- Current Sensing: Supports high-side or low-side sensing up to ± 8 A.
- Pre-programmed Profiles: Embedded battery profiles tailored for 4.2 V, 4.35 V, and 4.4 V systems.
- Communication Interface: 400 kHz full-speed I²C interface.
- Compact Package: 9-Bump, 1.47 mm × 1.47 mm WLCSP / BGA package.
- Power Efficiency: Low power usage (35 μA in normal mode) with rapid SOC adaptation in low-temperature environments.
Common Applications & Device Compatibility
The chip acts as a vital power path and measurement component on phone motherboards. Key integrations include:
- Xiaomi: Commonly serves as the main charging control IC on the Redmi Note 11 motherboard.
- Samsung: Integrated into legacy mid-range lineups like the Galaxy Grand Prime (G530/G531), Galaxy J5 (J500), Galaxy J7 (J700), Galaxy J3, and Galaxy Tab E.
- Other Devices: Found broadly across tablets, wearable tech, and IoT devices.
Failure Symptoms (When it needs replacement)
If this IC is damaged or faulty due to a power surge, liquid exposure, or wear, the device will typically exhibit:
- A complete failure to charge or draw power (“no charging” fault).
- Extremely slow, unstable, or intermittently disconnecting charge status.
- False temperature errors or “charging paused” pop-ups on screen.
- Excessive overheating near the charging circuit zone on the motherboard
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