Product Parameters Parameters​

​​Input Voltage:​​ 2.5V-4.5V DC

​​SOC Accuracy:​​ ±1%

​​Standby Current:​​ ≤3μA

​​Communication:​​ I²C/SMBus

​​Alert Function:​​ Programmable Low-Battery Threshold

​​Voltage Measurement:​​ 0V-5V Range

​​Operating Temperature:​​ -40°C to +85°C (Reliable)

​​🔌 Pin Functions ( )​​

​​VDD:​​ Power Input (2.5V-4.5V DC). Connect directly to battery positive. Parallel ≥0.1μF ceramic capacitor.

​​GND:​​ Power Ground. Share common ground with battery negative and MCU.

​​CELL:​​ Battery Voltage Sense Positive. Connect to battery positive. Keep wire length ≤5cm.

​​CTG:​​ Battery Voltage Sense Negative. Connect to battery negative. Isolate from GND.

​​SDA:​​ I²C Data Line. Requires 4.7kΩ pull-up resistor to VDD.

​​🌟 Key Features​​

​​High Precision Monitoring:​​ Real-time SOC and voltage tracking with ±1% accuracy using ModelGauge algorithm (no learning cycle required) .

​​Plug-and-Play I²C Interface:​​ Direct digital output compatible with for Arduino/STM32/for Raspberry Pi .

​​Low-Power Alert:​​ ALERT pin triggers interrupt when battery falls below set threshold, reducing MCU polling overhead .

​​Robust Design:​​ Built-in temperature compensation and noise suppression for complex Settings .

​​❓ FAQ​​

1.
​​SOC Reading Jumps (±5% Fluctuation)?​​

→ Add 0.1μF ceramic capacitor close to CELL pin; enable software averaging (read 3 times); avoid reading during high load current swings .

2.
​​ALERT Interrupt Not Triggering?​​

→ Verify threshold configuration (e.g., register 0x0C = 0x1A for 10%); check ALERT pull-up resistor; confirm interrupt enable in register 0x0C .