Texas Instruments announced two power management chipsets with TI’s patented new MaxLife fast-charge technology, which charges single-cell Li-Ion batteries faster and increases battery life. The bq27530 and bq27531 fuel gauge circuits with charger control are available now in a 2mm by 1mm by 0.65mm, 15-pin wafer chipscale (WCSP) package, and are priced at $2.07 in 1,000-unit quantities. The bq24192 4.5-A battery charger comes in a 24-pin, 4mm by 4mm QFN package and is priced at $2.50 in quantities of 1,000. The bq24160 dual-input 2.5-A charger comes in a 24-pin QFN package and a 2.8mm by 2.8mm, 49-ball WCSP package, and is priced at $2.50 in 1,000-unit quantities.
Texas Instruments’ MaxLife technology leverages an innovative degradation modeling system to minimize charge time while extending battery service life – as much as 30% according to lab tests. Based on TI’s popular Impedance Track battery capacity measurement technology, the MaxLife algorithm accurately predicts and avoids charge conditions that could degrade the battery.
The TI bq27530 and bq24160 chipset for 2.5-A charge rates and the bq27531 and bq24192 chipset for 4.5-A charge rates give designers greater flexibility by having the gauge control the charger directly. This autonomous battery management system reduces software overhead, improves battery safety and security, provides better thermal management and allows a designer to adapt the charging algorithm to support different platforms and newer higher capacity batteries.
Texas Instruments BQ27530-G1 Features
- Battery Fuel Gauge and Charger Controller for 1-Series Li-Ion Applications
- Resides on System Main Board
- Battery Fuel Gauge Based on Patented Impedance Track Technology Models the Battery Discharge Curve for Accurate Time-to-Empty Predictions
- Battery Charger Controller with customizable charge profiles Configurable Charge Voltage and Current based on Temperature
- Host Free Autonomous Battery Management System Reduced software overhead allows for easy portability across platforms and shorter OEM design cycles
- Run Time Improvements Longer battery runtime leveraging Impedance Track technology
- Intelligent Charging – Customized and adaptive charging profiles Charger Control based on SoH
- Battery Charger Controller for bq2416x Single Cell Switchmode Battery Charger Stand-Alone Charging Solution
- 400-kHz I2C Interface for Connection to System Microcontroller Port
- In a 15-Pin NanoFree (CSP) Packaging
More info: Texas Instruments Battery Fuel Gauge