The bq27200EVM is a complete evaluation system for the bq27200 single cell Li-Ion and Li-Polymer battery gas gauge IC. The EVM includes one bq27200 circuit module, an EV2300 PC interface board for gas gauge IC evaluation, a USB cable, and a CD ROM including windows-based PC software and support documentation. The circuit module includes one bq27200 IC, a current sense resistor and all other components on-board necessary to calculate remaining battery capacity and predict a system's time to empty.
The circuit module connects directly across the cell in a battery and provides connections for a battery charger and system load. With the PC interface board and software, the user can read the bq27200 data registers, program the on-chip configuration EEPROM, and evaluate the functions of the bq27200 under different charge and discharge conditions. The program includes a data logging utility to record and store bq27200 activity during charge/discharge cycles.
The EV2300 is a USB-based interface board for a PC that can be used to evaluate battery fuel gauge circuits designed with Texas Instruments' ICs. The EV2300 has connections on it for a USB cable and also accepts inputs from a battery fuel gauge circuit's communication port (SMBus or HDQ). By running the appropriate PC software for the corresponging fuel gauge IC, the EV2300 interface board allows the user to evaluate the battery fuel gauge circuit.