Datasheet Texas Instruments BQ27421-G1
| Manufacturer | Texas Instruments |
| Series | BQ27421-G1 |
System-Side(tm) Fuel Gauge With Integrated Sense Resistor | Battery Gas Gauge
Datasheets
bq27421-G1 System-Side Impedance Track Fuel Gauge With Integrated Sense Resistor datasheet
PDF, 1.1 Mb, Revision: E, File published: Jan 6, 2016
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Prices
Status
| BQ27421YZFR-G1A | BQ27421YZFR-G1B | BQ27421YZFR-G1D | BQ27421YZFT-G1A | BQ27421YZFT-G1B | BQ27421YZFT-G1D | |
|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes | No | No | Yes |
Packaging
| BQ27421YZFR-G1A | BQ27421YZFR-G1B | BQ27421YZFR-G1D | BQ27421YZFT-G1A | BQ27421YZFT-G1B | BQ27421YZFT-G1D | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Pin | 9 | 9 | 9 | 9 | 9 | 9 |
| Package Type | YZF | YZF | YZF | YZF | YZF | YZF |
| Industry STD Term | DSBGA | DSBGA | DSBGA | DSBGA | DSBGA | DSBGA |
| JEDEC Code | S-XBGA-N | S-XBGA-N | S-XBGA-N | S-XBGA-N | S-XBGA-N | S-XBGA-N |
| Package QTY | 3000 | 3000 | 3000 | 250 | 250 | 250 |
| Carrier | LARGE T&R | LARGE T&R | LARGE T&R | SMALL T&R | SMALL T&R | SMALL T&R |
| Device Marking | BQ27421 | G1B | BQ27421 | G1A | BQ27421 | G1D |
| Width (mm) | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 |
| Length (mm) | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 |
| Pitch (mm) | .5 | .5 | .5 | .5 | .5 | .5 |
| Max Height (mm) | .625 | .625 | .625 | .625 | .625 | .625 |
| Mechanical Data | Download | Download | Download | Download | Download | Download |
Parametrics
| Parameters / Models | BQ27421YZFR-G1A | BQ27421YZFR-G1B | BQ27421YZFR-G1D | BQ27421YZFT-G1A | BQ27421YZFT-G1B | BQ27421YZFT-G1D |
|---|---|---|---|---|---|---|
| Battery Capacity(Max), mAh | 8000 | 8000 | 8000 | 8000 | 8000 | 8000 |
| Battery Capacity(Min), mAh | 100 | 100 | 100 | 100 | 100 | 100 |
| Cell Balancing | N/A | N/A | N/A | N/A | N/A | N/A |
| Cell Chemistry | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer |
| Communication Interface | I2C | I2C | I2C | I2C | I2C | I2C |
| External Capacity Indication | None | None | None | None | None | None |
| Gas Gauge Algorithm | IT (High accuracy) | IT (High accuracy) | IT (High accuracy) | IT (High accuracy) | IT (High accuracy) | IT (High accuracy) |
| Implementation | System | System | System | System | System | System |
| Number of Series Cells | Single Cell | Single Cell | Single Cell | Single Cell | Single Cell | Single Cell |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Package Group | DSBGA | DSBGA | DSBGA | DSBGA | DSBGA | DSBGA |
| Package Size: mm2:W x L, PKG | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) |
| Pin/Package | 9DSBGA | 9DSBGA | 9DSBGA | 9DSBGA | 9DSBGA | 9DSBGA |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Special Features | Integrated Sense Resistor | Integrated Sense Resistor | Integrated Sense Resistor | Integrated Sense Resistor | Integrated Sense Resistor | Integrated Sense Resistor |
Eco Plan
| BQ27421YZFR-G1A | BQ27421YZFR-G1B | BQ27421YZFR-G1D | BQ27421YZFT-G1A | BQ27421YZFT-G1B | BQ27421YZFT-G1D | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Application Notes
- Single Cell Gas Gauge Circuit DesignPDF, 154 Kb, File published: Feb 22, 2008
- Verification and Accuracy Test Methods of Gas GaugesPDF, 51 Kb, File published: Jun 5, 2013
- Theory and Implementation of Impedance Track Battery Fuel-Gauging AlgorithmPDF, 608 Kb, File published: Jan 31, 2008
This application report outlines the theory of Impedance Trackв„ў (IT) technology used in the bq2750x series of fuel gauge ICs for single-cell Li-ion applications (e.g., smart phones, media players, and PDAs). The implementation of the IT algorithm in the bq2750x family is reviewed, and the settings of data flash constants associated with the fuel-gauging algorithm is described in detail. - Single Cell Impedance Track Printed-Circuit Board LayoutPDF, 403 Kb, File published: Feb 22, 2008
bq20z70/90 Printed-Circuit Board Layout Guide - Going to Production With the bq274xx Family of Gas GaugesPDF, 1.2 Mb, File published: Jun 27, 2011
This application report presents a strategy for high-speed, economical calibration and production programming of the bq274xx single-cell gas gauge. Flowchart examples are provided, along with step-by-step instructions for preparing a calibration data set that is required when creating the Golden Data Flash Image (DFI) that is programmed into all bq274xx devices on the production line. - Low-Power, Long Runtime Fuel Gauging SchemePDF, 52 Kb, File published: Oct 11, 2013
Model Line
Series: BQ27421-G1 (6)
Manufacturer's Classification
- Semiconductors> Power Management> Battery Management Products> Battery Fuel Gauge
