Texas Instruments: EV2200 PC Interface Board for Gas Gauge Evaluation

Kit Overview

The Texas Instruments EV2200 provides a development and evaluation environment for HDQ based and SMBus based gas gauge ICs. The EV2200. provides connections for the communication lines of an intelligent battery with a serial interface port of a Windows-based PC. With the EV2200, the user can read/write the gas gauge registers of each IC and monitor the battery's status. In the SBS SMBus environment, the interface board and software allow the battery pack designer to evaluate the function of the ICs, calibrate the intelligent battery circuit for current, temperature, and voltage measurements, and program the external EEPROM.

Development system for HDQ (bq2013H, BQ2014HSN, bq2018, bq2019, bq2050H and bq2052) and SMBus (bq2040 and bq2060) gas gauge ICs:

• The bq2013H Gas Gauge IC is intended for battery-pack installation to maintain an accurate record of a battery’s available charge. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery. The bq2013H is designed for high cpaacity battery packs used in high-discharge rate systems.
• The bq2014H/bq2040 Gas Gauge IC is intended for batterypack or in-system installation to maintain an accurate record of available battery capacity. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery.The BQ2040EVM-001 directly supports capacity monitoring for NiCd, NiMH, and Li-Ion battery chemistries.
• The bq2018 is a low-cost charge/discharge counter peripheral packaged in an 8-pin TSSOP or SOIC. It works with an intelligent host controller, providing state-of-charge information for rechargeable batteries.
• The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products.
• The bq2050H Lithium Ion Power Gauge IC is intended for battery pack or in-system installation to maintain an accurate record of available battery capacity. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery.
• The bq2052 Lithium Primary Gas Gauge IC is intended for battery-pack or in system installation to maintain an accurate record of available battery capacity. The IC monitors a voltage drop across a sense resistor connected in series with the cells to determine discharge activity of the battery. The bq2052 applies compensations for battery temperature and discharge rate to the available charge counter to provide available capacity information across a wide range of operating conditions.
• The bq2060 SBS-compliant gas gauge IC for battery pack or in-system installation maintains an accurate record of available charge in rechargeable batteries. The BQ2060AEVM-001 monitors capacity and other critical battery parameters for NiCd, NiMH, Li-ion, and lead-acid chemistries.

Key Applications: Power-Assist Applications, Lithium Primary Cells