BQ27210
- HDQ (bq27010) or I2C (bq27210) Communication
- Reports Accurate Time-to-Empty At Both Measured and Host-Requested Load Values
- Reports Available Capacity Compensated for Discharge Rate, Temperature, and Age
- End-of-Discharge Voltage Compensated for Discharge Rate and Temperature
- Automatic Capacity Reduction with Age
- Reports Temperature, Voltage, and Current
- High Accuracy Charge and Discharge Current Integration with Automatic Offset Calibration
- Requires No User Calibration
- Programmable Input/Output Port
- Internal User EEPROM Configuration Memory
- Uploadable Coefficients Allows Host-Side Use with Multiple Pack Characteristics
- Stable Oscillator Without External Components
- Dynamic End-of-Discharge Detection Delay to Allow Use in a High-Dynamic Load Environment
- Automatic Sleep Mode When Communication Lines are Low
- Available in a Small 3 mm x 4 mm QFN Package
- Five Low-Power Operating Modes
- Active: < 90 µA
- Sleep: < 2.5 µA
- Ship: < 2 µA (bq27010 only)
- Hibernate: < 1.5 µA
- Data Retention: < 20 nA
- APPLICATIONS
- PDA
- Smart Phones
- MP3 Players
- Digital Cameras
- Internet Appliances
- Handheld Devices
bqJUNIOR is a trademark of Texas Instruments.
The bqJUNIOR™ series are highly accurate stand-alone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting devices targeted at space-limited, portable applications. The IC monitors a voltage drop across a small current sense resistor connected in series with the battery to determine charge and discharge activity of the battery. Compensations for battery age, temperature, self-discharge, and discharge rate are applied to the capacity measurments to provide available time-to-empty 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. Internal registers include current, capacity, time-to-empty, state-of-charge, cell temperature and voltage, status, and more.
The bqJUNIOR can operate directly from single-cell Li-Ion and Li-Pol batteries and communicates to the system over a HDQ one-wire or I2C serial interface.
技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | Li-Ion and Li-Pol Battery Gas Gauge IC for Portable Apps (bqJUNIOR) データシート (Rev. B) | 2007/01/16 | |||
| アプリケーション・ノート | Feature Set Comparison of bq27x00, bq27x10, bq27500, and bq27510 (Rev. A) | 2008/12/02 | ||||
| アプリケーション・ノート | Transition From Prior bqJunior Gauges to the bq27x10 | 2007/07/17 | ||||
| アプリケーション・ノート | Configuring the bq27010/210 for Gas Gauge Applications | 2007/02/23 | ||||
| アプリケーション・ノート | Using the bq27x00 With a Primary Cell Battery | 2005/12/15 | ||||
| アプリケーション・ノート | Building a Superior Battery Monitor with the bq27x00 | 2005/06/20 |
設計と開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
BQ27XXXSW-LINUX — Linux ドライバ、BQ27XXX 用
The Linux driver supports the BQ27x series of Battery Fuel Gauges. The Linux driver supports communication through the I2C/HDQ bus and interfaces with the power supply sub-system to monitor battery properties.
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
(...)
SLUC078 — bq27x10 Tester Software
SLUC087 — bq27x10 evaluation software
SLUC261 — Gas Gauge Chemistry Updater Setup v7.82
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| VSON (DRK) | 10 | Ultra Librarian |