RT9428
Overview
The RT9428 is a compact, host-side fuel gauge IC for lithium-ion (Li+) battery-powered systems. For the embedded Fuel Gauge function, the state-ofcharge (SOC) calculation is based on the battery voltage information and the dynamic difference between battery voltage and relaxed OCV, by using iteration to estimate the increasing or decreasing SOC.
- Host-Side Fuel Gauging
- Precision Voltage Measurement ±7.5mV Accuracy
- Accurate Relative Capacity (RSOC) Calculated from Voltaic Gauge Algorithm with Temperature Compensation
- No Accumulation Error on Capacity Calculation
- No Battery Relearning Necessary
- No Current Sense Resistor Required
- External Alarm/Interrupt for Low Battery Alert
- I2C Compatible Interface
- Low Power Consumption
- RoHS Compliant and Halogen Free
