bq2060A

bq2060A www.ti.com SLUS500D – OCTOBER 2001 – REVISED OCTOBER 2011 SBS v1.1-Compliant Gas Gauge IC Check for Samples: bq2060A FEATURES 1 Provides Accurate Measurement of Available Charge in NiCd, NiMH, Li-Ion, and Lead-Acid Batteries Supports SBS Smart Battery Data Specification v1.1 Supports the 2-Wire SMBus v1.1 Interface With PEC or 1-Wire HDQ16 Reports Individual Cell Voltages Monitors and Provides Control to Charge and Discharge FETs in Li-Ion Protection Circuit Provides 15-Bit Resolution for Voltage, Temperature, and Current Measurements Measures Charge Flow Using a V-to-F Converter With Offset of Less Than 16 µV After Calibration Consumes Less Than 0.5 mW Operating Drives a 4- or 5-Segment LED Display for Remaining Capacity Indication 28-Pin 150-Mil (3,8-mm) SSOP DESCRIPTION The bq2060A SBS-compliant gas gauge IC for battery pack or in-system installation maintains an accurate record of available charge in rechargeable batteries. The bq2060A monitors capacity and other critical battery parameters for NiCd, NiMH, Li-ion, and lead-acid chemistries. The bq2060A uses a voltage-to-frequency converter with automatic offset error correction for charge and discharge counting. For voltage, temperature, and current reporting, the bq2060A uses an A-to-D converter. The onboard ADC also monitors individual cell voltages in a Li-ion battery pack and allows the bq2060A to generate control signals that may be used with a pack supervisor to enhance pack safety. T...