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BQ2060A-E619DBQG4 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ2060A-E619DBQG4 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 61 page  bq2060A www.ti.com SLUS500D – OCTOBER 2001 – REVISED OCTOBER 2011 SBS v1.1-Compliant Gas Gauge IC Check for Samples: bq2060A The bq2060A supports the smart battery data 1 FEATURES (SBData) commands and charge-control functions. It • Provides Accurate Measurement of Available communicates data using the system management Charge in NiCd, NiMH, Li-Ion, and Lead-Acid bus (SMBus) 2-wire protocol or the Benchmarq 1-wire Batteries HDQ16 protocol. The data available include the remaining battery capacity, temperature, voltage, • Supports SBS Smart Battery Data current, and remaining run-time predictions. The Specification v1.1 bq2060A provides LED drivers and a pushbutton • Supports the 2-Wire SMBus v1.1 Interface With input to depict remaining battery capacity from full to PEC or 1-Wire HDQ16 empty in 20% or 25% increments with a 4- or • Reports Individual Cell Voltages 5-segment display. • Monitors and Provides Control to Charge and The bq2060A works with an external EEPROM. The Discharge FETs in Li-Ion Protection Circuit EEPROM stores the configuration information for the bq2060A, such as battery chemistry, self-discharge • Provides 15-Bit Resolution for Voltage, rate, rate compensation factors, measurement Temperature, and Current Measurements calibration, and design voltage and capacity. The • Measures Charge Flow Using a V-to-F bq2060A uses the programmable self-discharge rate Converter With Offset of Less Than 16 µV After and other compensation factors stored in the Calibration EEPROM to accurately adjust remaining capacity for • Consumes Less Than 0.5 mW Operating use and standby conditions based on time, rate, and temperature. The bq2060A also automatically • Drives a 4- or 5-Segment LED Display for calibrates or learns the true battery capacity in the Remaining Capacity Indication course of a discharge cycle from near-full to • 28-Pin 150-Mil (3,8-mm) SSOP near-empty levels. The REG output regulates the operating voltage for DESCRIPTION the bq2060A from the battery cell stack using an The bq2060A SBS-compliant gas gauge IC for external JFET. battery pack or in-system installation maintains an accurate record of available charge in rechargeable PIN CONNECTIONS batteries. The bq2060A monitors capacity and other critical battery parameters for NiCd, NiMH, Li-ion, and lead-acid chemistries. The bq2060A uses a 150-Mil (3,8-mm) SSOP 28-Pin 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. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2001–2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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