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BQ28Z620-DEVICE-FW

Firmware for BQ28Z620 family of gauges

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최신 버전
버전: R1-V1.01
출시 날짜: 2023. 8. 9
lock = 수출 승인 필요(1분)
제품
배터리 연료 게이지
BQ28Z620 1.2V I/O를 지원하는 1 시리즈~2 시리즈 팩용 통합 보호기를 갖춘 배터리 연료 게이지
하드웨어 개발
평가 보드
BQ28Z620EVM-071 1 또는 2 시리즈 셀 리튬 이온 Impedance Track™ 배터리 연료 게이지용 BQ28Z620 평가 모듈

출시 정보

The Texas Instruments BQ28Z620 device is a highly integrated, accurate, 1-series to 2-series cell gas gauge and protection solution, enabling autonomous charger control and cell balancing.

The BQ28Z620-DEVICE-FW enables autonomous charge control through Master Mode I2C broadcasts of charging current and voltage information, eliminating software overhead that is typically incurred by the system’s host controller.

The BQ28Z620-DEVICE-FW device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1- to 2-series cell Li-ion and Li-polymer battery packs.

The BQ28Z620-DEVICE-FW communicates via an I2C compatible interface and combines an ultra-low-power, high-speed TI BQBMP processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.

Features

  • Autonomous battery charging control, using a dedicated MASTER mode I2C interface
  • 400-kHz I2C bus communications interface, including a 1.2-V logic level for high-speed programming and data access
  • Cell balancing with an internal bypass to optimize battery health
  • A high-side protection N-CH FET drive enables serial bus communication during fault conditions
  • Programmable protection levels for voltage, current, and temperature
  • Support for simultaneous current and voltage sampling
  • Supports down to 0.5-mΩ current sense resistor while capable of 1-mA current measurement
  • SHA-1 authentication responder for increased battery pack security