CW2017
Overview
The CW2017 is an ultra-compact, system-side or pack-side, sensing resistor free, fuel gauging IC for Lithium-ion(Li+) based batteries in handheld and portable devices. The CW2017 tracks the Li+ battery’s operation conditions and performs state-of-the-art algorithm to calculate the relative State-of-Charge (SOC) of very different battery chemistry systems (LiCoOx, polymer Li-ion, LiMnOx etc.).
- System-Side or Pack-Side Fuel Gauging
- ±3% Maximum SOC Measurement Error
- 14-bit Sigma-Delta ADC for Cell Voltage, Temperature and ID Resistor Measurement
- Configurable Interrupt for Battery SOC Change, High or Low Battery Temperature
- No Offset Accumulation During Life Time
- No Full-to-Empty Battery Learning Cycle
- No Sense Resistor Required
- Patented “FastCali” Fuel Gauging Algorithm
- External Thermistor or Host Reported Temperature
- ID Resistor Measurement Supported
