A newer version of this product is available

open-in-new Compare alternates
This product continues to be available for existing customers. New designs should consider an alternate product.
Same functionality with different pin-out to the compared device
BQ40Z50-R2 ACTIVE 1-4 series Li-ion battery pack manager supporting Turbo Mode 2.0 SHA-1 authentication, TURBO mode 2.0, black box recorder, adaptive charging

Product details

Cell chemistry Li-Ion/Li-Polymer Number of series cells 2-4 Cells Communication interface HDQ, SMBus Battery capacity (min) (mAh) 800 Battery capacity (max) (mAh) 10000 Implementation Pack External capacity indication LED Features Coulomb Counter Operating temperature range (°C) 0 to 70 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells 2-4 Cells Communication interface HDQ, SMBus Battery capacity (min) (mAh) 800 Battery capacity (max) (mAh) 10000 Implementation Pack External capacity indication LED Features Coulomb Counter Operating temperature range (°C) 0 to 70 Rating Catalog
SSOP (DBQ) 28 59.4 mm² 9.9 x 6
  • Provides Accurate Measurement of Available Charge in Li-Ion Batteries
  • Supports the 2-Wire SMBus V1.1 Interface With PEC or Single-Wire HDQ16
  • Directly Interfaces the Seiko S-8243 Protection IC for Maximum Safety Protection and Minimal Component Count
  • Supports Internal or External Thermistor
  • Reports Individual Cell Voltages
  • Uses 15-Bit ADC for Accurate Voltage, Temperature, and Current Measurements
  • Measures Charge Flow Using A V-to-F Converter With Offset of Less Than 16 uV After Calibration
  • Consumes Less Than 0.5 mW Operating
  • Drives 4- or 5-Segment LED Display for Remaining Capacity Indication
  • 28-Pin 150-Mil SSOP

  • Provides Accurate Measurement of Available Charge in Li-Ion Batteries
  • Supports the 2-Wire SMBus V1.1 Interface With PEC or Single-Wire HDQ16
  • Directly Interfaces the Seiko S-8243 Protection IC for Maximum Safety Protection and Minimal Component Count
  • Supports Internal or External Thermistor
  • Reports Individual Cell Voltages
  • Uses 15-Bit ADC for Accurate Voltage, Temperature, and Current Measurements
  • Measures Charge Flow Using A V-to-F Converter With Offset of Less Than 16 uV After Calibration
  • Consumes Less Than 0.5 mW Operating
  • Drives 4- or 5-Segment LED Display for Remaining Capacity Indication
  • 28-Pin 150-Mil SSOP

The bq2063 SBS-compliant gas gauge IC for battery-pack or in-system installation maintains an accurate record of available charge in Li-Ion batteries. The bq2063 monitors capacity and other critical parameters in Li-Ion battery packs. It also directly interfaces the Seiko S-8243 protection IC to minimize component count in smart-battery circuits.

The bq2063 uses a V-to-F converter with automatic offset correction for charge and discharge counting. For voltage, temperature, and current reporting, the bq2063 uses an A-to-D converter. In conjunction with the S-8243, the onboard ADC also monitors individual cell voltages in a Li-Ion battery pack and allows the bq2063 to generate control signals to enhance pack safety.

The bq2063 supports the smart battery data (SBData) commands and charge-control functions. It communicates data using the system management bus (SMBus) 2-wire protocol or the 1-wire HDQ16 protocol. The data available include the battery’s remaining capacity, temperature, voltage, current, and remaining run-time predictions. The bq2063 provides LED drivers and a push-button input to depict remaining battery capacity from full to empty in 20% or 25% increments with a 4- or 5-segment display.

The bq2063 works with an external EEPROM. The EEPROM stores the configuration information for the bq2063, such as the battery’s chemistry, self-discharge rate, rate-compensation factors, measurement calibration, and design voltage and capacity. The bq2063 uses the programmable self-discharge rate and other compensation factors stored in the EEPROM to accurately adjust remaining capacity for use and standby conditions based on time, rate, and temperature. The bq2063 also automatically calibrates or learns the true battery capacity in the course of a discharge cycle from programmable near full to near empty levels.

The S-8243 protection IC may be used to provide power to the bq2063 from a 3- or 4-series Li-Ion cell stack.

The bq2063 SBS-compliant gas gauge IC for battery-pack or in-system installation maintains an accurate record of available charge in Li-Ion batteries. The bq2063 monitors capacity and other critical parameters in Li-Ion battery packs. It also directly interfaces the Seiko S-8243 protection IC to minimize component count in smart-battery circuits.

The bq2063 uses a V-to-F converter with automatic offset correction for charge and discharge counting. For voltage, temperature, and current reporting, the bq2063 uses an A-to-D converter. In conjunction with the S-8243, the onboard ADC also monitors individual cell voltages in a Li-Ion battery pack and allows the bq2063 to generate control signals to enhance pack safety.

The bq2063 supports the smart battery data (SBData) commands and charge-control functions. It communicates data using the system management bus (SMBus) 2-wire protocol or the 1-wire HDQ16 protocol. The data available include the battery’s remaining capacity, temperature, voltage, current, and remaining run-time predictions. The bq2063 provides LED drivers and a push-button input to depict remaining battery capacity from full to empty in 20% or 25% increments with a 4- or 5-segment display.

The bq2063 works with an external EEPROM. The EEPROM stores the configuration information for the bq2063, such as the battery’s chemistry, self-discharge rate, rate-compensation factors, measurement calibration, and design voltage and capacity. The bq2063 uses the programmable self-discharge rate and other compensation factors stored in the EEPROM to accurately adjust remaining capacity for use and standby conditions based on time, rate, and temperature. The bq2063 also automatically calibrates or learns the true battery capacity in the course of a discharge cycle from programmable near full to near empty levels.

The S-8243 protection IC may be used to provide power to the bq2063 from a 3- or 4-series Li-Ion cell stack.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet SBS v1.1-Compliant Li-Ion Gas Gauge IC with Protector Interface datasheet (Rev. E) 24 Apr 2002
Application note Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) PDF | HTML 12 Jul 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins CAD symbols, footprints & 3D models
SSOP (DBQ) 28 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos