BQ20Z80

• Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
• Better than 1% Error Over Lifetime of the Battery
• Instant Accuracy – No Learning Cycle Required
• Supports the Smart Battery Specification SBS V1.1
• Works With the TI bq29312A Analog Front-End (AFE) Protection IC to Provide Complete Pack Electronics Solution
• Full Array of Programmable Voltage, Current, and Temperature Protection Features
• Integrated Time Base Removes Need for External Crystal with Optional Crystal Input
• Electronics for 7.2-V, 10.8-V or 14.4-V Battery Packs With Few External Components
• Based on a Powerful Low-Power RISC CPU Core With High-Performance Peripherals
• Integrated Field Programmable FLASH Memory Eliminates the Need for External Configuration Memory
• Measures Charge Flow Using a High-Resolution, 16-Bit Integrating Delta-Sigma Converter
  • Better Than 0.65 nVh of Resolution
  • Self-Calibrating
  • Offset Error Less Than 1 µV
• Uses 16-Bit Delta-Sigma Converter for Accurate Voltage and Temperature Measurements
• Extensive Data Reporting Options For Improved System Interaction
• Optional Pulse Charging Feature for Improved Charge Times
• Drives 3-, 4- or 5-Segment LED Display for Remaining Capacity Indication
• Supports SHA-1 Authentication
• Lifetime Data Logging
• 38-Pin TSSOP (DBT)
• APPLICATIONS
  • Notebook PCs
  • Medical and Test Equipment
  • Portable Instrumentation

Impedance Track is a trademark of Texas Instruments.