NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC

The BQ2014 Gas Gauge IC is intended for battery-pack or in-system installation to maintain an accurate record of available battery charge. The IC monitors the voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery.
Self-discharge of NiMH and NiCd batteries is estimated based on an internal Timer and Temperature Sensor Compensations for battery temperature and rate of charge or discharge are applied to the charge, discharge, and self-discharge calculations to provide available charge information across a wide range of operating conditions. Battery capacity is automatically recalibrated, or "learned," in the course of a discharge cycle from full to empty.
The BQ2014 includes a charge control output that controls an external Fast Charge IC such as the bq2004.
Nominal Available Charge (NAC) may be directly indicated using a five-segment LED Display
The BQ2014 supports a simple single-line bidirectional serial link to an external processor (with a common ground). The BQ2014 outputs battery information in response to external commands over the serial link.
Internal Registers include available charge, temperature, capacity, battery voltage, battery ID, battery status, and programming pin settings. To support subassembly testing, the outputs may also be controlled. The external processor may also overwrite some of the BQ2014 gas gauge data Registers
The BQ2014 may operate directly from three or four cells. With the REF output and an external Transistor a simple, inexpensive Regulator CAN be built to provide VCC across a greater number of cells.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
BQ2014HSNTRG4 Texas Instruments NiCd/NiMH Gas Gauge With High-Speed 1-Wire (HDQ) Interface And 5 LED Drivers 16-SOIC 0 to 70
BQ2014SN-D120 Texas Instruments NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC 16-SOIC 0 to 70
BQ2014SN-D120G4 Texas Instruments NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC 16-SOIC 0 to 70
BQ2014HSNG4 Texas Instruments NiCd/NiMH Gas Gauge With High-Speed 1-Wire (HDQ) Interface And 5 LED Drivers 16-SOIC 0 to 70
BQ2014HSNTR Texas Instruments NiCd/NiMH Gas Gauge With High-Speed 1-Wire (HDQ) Interface And 5 LED Drivers 16-SOIC 0 to 70
BQ2014SN-D120TR Texas Instruments NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC 16-SOIC 0 to 70
BQ2014SN-D120TRG4 Texas Instruments NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC 16-SOIC 0 to 70
BQ2014HEVM-001 Texas Instruments BQ2014H Evaluation Kit for NiMH, 10.8V
BQ2014HSN Texas Instruments NiCd/NiMH Gas Gauge With High-Speed 1-Wire (HDQ) Interface And 5 LED Drivers 16-SOIC 0 to 70
EV2014 Texas Instruments BQ2014 Evaluation Module for NiCd/NiMH with serial port and MS-DOS PC software
BQ2014 's PackagesBQ2014 's pdf datasheet
BQ2014SN-D120 SOIC
BQ2014SN-D120G4 SOIC
BQ2014SN-D120TR SOIC
BQ2014SN-D120TRG4 SOIC




BQ2014 Pinout, Pinouts
BQ2014 pinout,Pin out
This is one package pinout of BQ2014,If you need more pinouts please download BQ2014's pdf datasheet.

BQ2014 Application circuits
BQ2014 circuits
This is one application circuit of BQ2014,If you need more circuits,please download BQ2014's pdf datasheet.


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