bq20z40 - Texas Instruments

bq20z40 SBS 1.1-COMPLIANT GAS GAUGE

The bq20z40 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z40 monitors capacity c.

Features

1
•2 Next Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
  – Better Than 1% Error Over the Lifetime of the Battery
• Supports the Smart Battery Specification SBS V1.1
• Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
• Powerful 8-Bit RISC CPU With Ultralow Power Modes
• Full Array of Programmable Protection Features
  – Voltage, Current, and Temperature
• Satisfies JEITA Guidelines
• Added Flexibility to Handle More Complex Charging Profiles
• Lifetime Data Logging
• Supports SHA-1 Authentication
• Availa.