The BQ27Z746EVM comes with the BQ27Z746 integrated gas gauge and protection IC with external high-side protection N-Channel FETs. This user's guide will walk you through the following tasks:

• Connect the necessary components together to power up the EVM
• Installation of the necessary Texas Instruments software tools
• Setup of the EVM with additional hardware and software
• Calibrate the BQ27Z746 voltage and current readings
• Set gauge hardware protections
• Perform the Chemical ID selection process
• Optimize gauge reporting with a Learning Cycle
• Create and upload a Golden Image
• Use Advanced Communication with the gauge

These tasks will guide users of the BQ27Z746EVM through the process required to prepare for production with the BQ27Z746 by creating a "Golden Pack". A Golden Pack is a single gauge and battery that has had optimization and configuration processes performed on it during the development stage. The resulting values are extracted from the Golden Pack gauge into the “Golden File” or “Golden Image”. The Golden File is a flash image programmed into every gauge used in mass production as there should be minimal pack-to-pack variation during a well-controlled manufacturing process. The Impedance Track™ algorithm enables the gauge to continue to learn once a pack is deployed to account for manufacturing differences, field conditions, and battery degradation over its lifetime.