bq2060
www.ti.com
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
SBS V1.1-COMPLIANT GAS GAUGE IC
FEATURES
• Provides ...
bq2060
www.ti.com
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
SBS V1.1-COMPLIANT GAS GAUGE IC
FEATURES
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 SSOP
DESCRIPTION
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 bq2060 monitors capacity and other critical battery parameters for NiCd, NiMH, Li-ion, and lead-acid chemistries. The bq2060 uses a V-to-F converter with automatic offset error correction for charge and discharge counting. For
voltage, temperature, and current reporting, the bq2060 uses an A-to-D converter. The onboard ADC also monitors individual cell
voltages in a Li-ion battery pack and allows the bq2060 to generate control signals that may be used with a pack supervisor to enhance pack safety.
The bq2060 supports the smart battery data (SBData) commands...