BQ24259RGER

Description
The bq40z50-R1 device， incorporating patented lmpedance Track TM technology, is a fully integrated, single-chip, pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 1-series, 2-series, 3-series, and 4-series cell Li-lon and Li-Polymer battery packs. Using its integrated high-performance analog peripherals, the bq40z50-R1 device measures and maintains an accurate record of available capacity, voltage，current, temperature, and other critical parameters in Li-lon or Li-Polymer batteries, and reports this information to the system host controller over an SMBus v1.1 compatible interface.  
Features ●Fully Integrated 1 -Series, 2-Series, 3 -Series, and 4-Series Li-lon or Li-Polymer Cell Battery Pack Manager and Protection●Next-Generation Patented Impedance TrackTM Technology Accurately Measures Available Charge in Li-lon and Li-Polymer Batteries●High Side N-CH Protection FET Drive●Integrated Cell Balancing While Charging or At Rest●Full Array of Programmable Protection
Features- Voltage- Current- Temperature- Charge Timeout- CHG/DSG FETs- AFE● Sophisticated Charge Algorithms- JEITA- Enhanced Charging- Adaptive Charging- Cell Balancing● Supports TURBO BOOST Mode● Supports Battery Trip Point (BTP)● Diagnostic Lifetime Data Monitor and Black Box Recorder● LED Display●Supports Two-Wire SMBus v1.1 Interface● SHA-1 Authentication●Compact Package: 32-Lead QFN (RSM)   Applications
• Notebook/Netbook PCs
• Medical and Test Equipment
• Portable Instrumentation