The Texas Instruments bq27220 battery fuel gauge is a single-cell gauge that requires minimal user-configuration and system microcontroller firmware development, leading to quick system bring-up. The bq27220 device uses the Compensated End-of-Discharge Voltage (CEDV) algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (min), battery voltage (mV), temperature (°C), and state-of-health (%).
The bq27220 battery fuel gauge has ultra-low power consumption in NORMAL (50 µA) and SLEEP (9 µA) modes, leading to longer battery runtime. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor.
Customers can use preloaded CEDV parameters in ROM or can generate custom chemistry parameters using TI’s web-based tool, GAUGEPARCAL. Custom-generated parameters can be either programmed in the device RAM by the host on power up of the system or customers can program the parameters to an onboard One-Time Programmable (OTP) memory.
Battery fuel gauging with the bq27220 device requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny, 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree chip scale package (DSBGA) is ideal for space-constrained applications.
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 날짜 |
|---|---|---|---|---|
| * | Data sheet | bq27220 Single-Cell CEDV Fuel Gauge datasheet (Rev. A) | PDF | HTML | 2016/04/11 |
| User guide | BQ27220 Technical Reference Manual (Rev. A) | PDF | HTML | 2022/11/01 | |
| Technical article | Battery-charging tips for video doorbell applications | PDF | HTML | 2019/04/15 | |
| Technical article | Achieving higher-accuracy battery fuel-gauge performance in ultra-low-power system | PDF | HTML | 2017/05/09 | |
| Application note | Gauge Communication | 2017/01/12 | ||
| Application note | Enhanced Resolution Gauging for Low Current Applications Using Scaling | 2016/10/26 | ||
| Application note | bq27220 Calibration Guide | 2016/05/24 |
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ27220EVM-744 평가 모듈은 bq27220를 위한 완벽한 평가 시스템입니다. EVM에는 외부 감지 저항이 있는 bq27220 회로 모듈 1개가 포함되어 있습니다. 이 EVM을 사용하는 경우 가스 게이지 인터페이스용으로 별도로 주문 가능한 EV2400 PC 인터페이스 보드와 PC용 USB 케이블, Windows™ 기반 PC 소프트웨어가 필요합니다. EV2400 인터페이스 보드 및 소프트웨어를 통해 사용자는 다음과 같은 작업을 수행할 수 있습니다. (1) bq27220 데이터 레지스터를 읽습니다. (2) 다른 구성에 맞게 (...)
Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)
Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)
배터리 팩은 TI의 CEDV 알고리즘 기반 연료 게이지 중 하나를 사용해야 합니다. USB를 통해 연결된 CEDV 평가 보드와 함께 TI의 bqStudio(Battery Management Studio) 소프트웨어를 사용하여 생성할 수 있는 3쌍의 로그 파일을 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YZF) | 9 | Ultra Librarian |
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.
Download Chemistry zip file for bqStudio & use bqStudio Help menu to import the latest chemistries.
Battery Management Studio (bqStudio) Documentation
Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including support for real-time watching, graphing, and logging, an easy interface to send commands, direct low-level communication and I/O, as well as automated and guided support for configuration, calibration, performing a learning cycle, and generating useful files for taking the device to production.
Older products such as bq20xxx and bq30xxx are not supported in bqStudio. Download the specific evaluation software from the appropriate product page.
Requires: EV2400 or MKST-3P-ALT-EV2300
Windows Installer for Battery Management Studio (bqStudio)
Use this file with Battery Management Studio (bqStudio) Help menu to import the latest chemistries.
Battery Management Studio (bqStudio) Documentation
Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including support for real-time watching, graphing, and logging, an easy interface to send commands, direct low-level communication and I/O, as well as automated and guided support for configuration, calibration, performing a learning cycle, and generating useful files for taking the device to production.
Older products such as bq20xxx and bq30xxx are not supported in bqStudio. Download the specific evaluation software from the appropriate product page.