BQ2060SS-E411TR ,Multi-Chemistry SBS 1.1 Compliant Gas Gauge With 5 LED Drivers, Additional Battery Mgmt ControlSLUS035E–JANUARY 2000–REVISED OCTOBER 2005PIN DESCRIPTIONSTERMINALDESCRIPTIONNAME NO.Serial communi ..
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BQ2060SS-E207-EP-BQ2060SS-E411-BQ2060SS-E411TR
Multi-Chemistry SBS 1.1 Compliant Gas Gauge With 5 LED Drivers, Additional Battery Mgmt Control
bq2060 www.ti.com SLUS035E–JANUARY 2000–REVISED OCTOBER 2005 SBS V1.1-COMPLIANT GAS GAUGE IC current, and remaining run-time predictions. The FEATURES bq2060 provides LED drivers and a push-button input • Provides Accurate Measurement of Available to depict remaining battery capacity from full to empty Charge in NiCd, NiMH, Li-Ion, and Lead-Acid in 20% or 25% increments with a 4- or 5-segment Batteries display. • Supports SBS Smart Battery Data The bq2060 works with an external EEPROM. The Specification v1.1 EEPROM stores the configuration information for the • Supports the 2-Wire SMBus v1.1 Interface bq2060, such as the battery’s chemistry, with PEC or 1-Wire HDQ16 self-discharge rate, rate compensation factors, measurement calibration, and design voltage and • Reports Individual Cell Voltages capacity. The bq2060 uses the programmable • Monitors and Provides Control to Charge and self-discharge rate and other compensation factors Discharge FETs in Li-Ion Protection Circuit stored in the EEPROM to accurately adjust remaining • Provides 15-Bit Resolution for Voltage, capacity for use and standby conditions based on Temperature, and Current Measurements time, rate, and temperature. The bq2060 also automatically calibrates or learns the true battery • Measures Charge Flow Using a V-to-F capacity in the course of a discharge cycle from near Converter with Offset of Less Than 16µV full to near empty levels. After Calibration The REG output regulates the operating voltage for • Consumes Less Than 0.5 mW Operating the bq2060 from the battery cell stack using an • Drives a 4- or 5-Segment LED Display for external JFET. Remaining Capacity Indication • 28-Pin 150-mil SSOP PIN CONNECTIONS DESCRIPTION 1 28 HDQ16 SMBC 2 27 ESCL SMBD The bq2060 SBS-compliant gas gauge IC for battery 3 26 ESDA VCELL pack or in-system installation maintains an accurate 4 4 25 RBI VCELL record of available charge in rechargeable batteries. 3 5 24 The bq2060 monitors capacity and other critical REG VCELL 2 6 23 battery parameters for NiCd, NiMH, Li-ion, and V VCELL OUT 1 7 22 lead-acid chemistries. The bq2060 uses a V-to-F V SR CC 1 converter with automatic offset error correction for 8 21 V SR SS 2 charge and discharge counting. For voltage, 9 20 DISP SRC temperature, and current reporting, the bq2060 uses LED 10 19 TS 1 an A-to-D converter. The onboard ADC also monitors LED 11 18 THON 2 individual cell voltages in a Li-ion battery pack and LED 12 17 CVON 3 allows the bq2060 to generate control signals that LED 13 16 CFC 4 may be used with a pack supervisor to enhance pack 14 15 LED DFC 5 safety. 28-pin 150-mil SSOP The bq2060 supports the smart battery data (SBData) commands and charge-control functions. It These devices have limited built-in ESD communicates data using the system management protection. The leads should be shorted bus (SMBus) 2-wire protocol or the Benchmarq 1-wire together or the device placed in conductive HDQ16 protocol. The data available include the foam during storage or handling to prevent battery’s remaining capacity, temperature, voltage, electrostatic damage to the MOS gates. 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 © 2000–2005, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
