BQ20Z75-V180数据手册TI中文资料规格书

描述 Description

The bq20z75-V180 SBS-compliant gas gauge and protection IC is a single IC solution designed for battery-pack or in-system installation. The bq20z75-V180 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals, monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack as well and reports the information to the system host controller over a serial-communication bus. Together with the integrated analog front-end (AFE) short-circuit and overload protection the bq20z75-V180 maximizes functionality, safety and minimize external component count, cost and size in smart battery circuits. The implemented Impedance Track™ gas gauging technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell aging all accounted for during each stage of every cycle with high accuracy.

特性 Features

• Next Generation 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
• Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
• Powerful 8-Bit RISC CPU With Ultra-Low Power Modes
• Full Array of Programmable Protection Features
• Voltage, Current and Temperature

• Supports SHA-1 Authentication
• small 38-Pin TSSOP (DBT) Package
• APPLICATIONS
• Notebook PCs
• Medical and Test Equipment
• Portable Instrumentation