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電池管理 IC
電池電量計

BQ78Z100

現行

適用於 1 串聯至 2 串聯的 Impedance Track™ 電池電量 (氣量) 計

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產品規格表
使用指南

BQ78Z100

現行
產品規格表 立即訂購

產品詳細資料

Cell chemistry Li-Ion/Li-Polymer Number of series cells 1-2 Cells Communication interface HDQ, I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Cell balancing, Impedance Track™ algorithm, Integrated Protector, SHA-1 Authentication Operating temperature range (°C) -40 to 85 Cell balancing External, Internal Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells 1-2 Cells Communication interface HDQ, I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Cell balancing, Impedance Track™ algorithm, Integrated Protector, SHA-1 Authentication Operating temperature range (°C) -40 to 85 Cell balancing External, Internal Rating Catalog
VSON (DRZ) 12 10 mm² 4 x 2.5
  • High-Accuracy Coulomb Counter with Input Offset
    Error < 1 µV (Typical)
  • High-Side FET Drive Allows Serial Bus
    Communication During Fault Conditions
  • Analog Front End with Two Independent ADCs
    • Support for Simultaneous Current and Voltage
      Sampling
  • Bus Communications Interface Options
    • I2C
    • HDQ
  • SHA-1 Hash Message Authentication Code
    (HMAC) Responder for Increased Battery Pack
    Security
    • Split Key (2 × 64) Stored in Secure Memory
  • Programmable Protection Levels for:
    • Overcurrent in Discharge
    • Short-Circuit Current in Charge
    • Short-Circuit Current in Discharge
    • Overvoltage
    • Undervoltage
    • Overtemperature
  • Supports a 1-mΩ to 3-mΩ Current Sense Resistor
  • Compact 12-Terminal SON Package (DRZ)
  • High-Accuracy Coulomb Counter with Input Offset
    Error < 1 µV (Typical)
  • High-Side FET Drive Allows Serial Bus
    Communication During Fault Conditions
  • Analog Front End with Two Independent ADCs
    • Support for Simultaneous Current and Voltage
      Sampling
  • Bus Communications Interface Options
    • I2C
    • HDQ
  • SHA-1 Hash Message Authentication Code
    (HMAC) Responder for Increased Battery Pack
    Security
    • Split Key (2 × 64) Stored in Secure Memory
  • Programmable Protection Levels for:
    • Overcurrent in Discharge
    • Short-Circuit Current in Charge
    • Short-Circuit Current in Discharge
    • Overvoltage
    • Undervoltage
    • Overtemperature
  • Supports a 1-mΩ to 3-mΩ Current Sense Resistor
  • Compact 12-Terminal SON Package (DRZ)

The bq78z100 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1-series to 2-series cell Li-Ion and Li-Polymer battery packs.

The bq78z100 gas gauge communicates via an I2C-compatible interface or single-wire HDQ 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-channel FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.

The bq78z100 device provides an array of battery and system safety functions, including overcurrent in discharge, short circuit in charge, and short circuit in discharge protection for the battery, as well as FET protection for the N-channel FETs, internal AFE watchdog, and cell balancing. Through firmware, the devices can provide a larger array of features including protection against overvoltage, undervoltage, overtemperature, and more.

The bq78z100 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1-series to 2-series cell Li-Ion and Li-Polymer battery packs.

The bq78z100 gas gauge communicates via an I2C-compatible interface or single-wire HDQ 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-channel FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.

The bq78z100 device provides an array of battery and system safety functions, including overcurrent in discharge, short circuit in charge, and short circuit in discharge protection for the battery, as well as FET protection for the N-channel FETs, internal AFE watchdog, and cell balancing. Through firmware, the devices can provide a larger array of features including protection against overvoltage, undervoltage, overtemperature, and more.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet bq78z100 Impedance Track Gas Gauge for 1-Series to 2-Series Li-Ion/Li-Polymer Battery Packs datasheet PDF | HTML 2015年 9月 14日
* User guide bq78z100 Technical Reference Manual (Rev. A) 2016年 9月 15日
Application note How to complete a successful learning cycle for the bq28z610/bq78z100 2016年 6月 23日

設計與開發

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開發板

BQ78Z100EVM-532 — bq78z100EVM 1 節至 2 節鋰離子電池組管理工具評估模組

The bq78z100EVM-532 evaluation module (EVM) is a complete evaluation system for the bq78z100 or bq294502 battery management system. The EVM includes one bq78z100 and bq294502 circuit module and a link to Windows™ based PC software. The circuit module includes one bq78z100  integrated (...)

使用指南: PDF
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應用軟體及架構

BQSTUDIO-STABLE — Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

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 (...)

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應用軟體及架構

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

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 (...)

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韌體

BQ28Z610-DEVICE-FW — Firmware for BQ28Z610 family of gauges

The BQ28Z610-DEVICE-FW is a firmware (FW) upgrade for the BQ28Z610-R1 and newer devices. The BQ28Z610-R1 is a highly integrated, accurate, 1-series to 2-series cell gas gauge with protection solution, providing autonomous charger control and cell balancing.
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SLUC601 — BQ78Z100 Firmware version 0.05

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計算工具

GAUGEPARCAL — 計量參數計算機

計量參數計算機 (GPC) 是一種數學計算與模擬工具，可協助電池設計人員為特定電池性能評測工具取得相符的補償放電終止電壓 (CEDV) 係數。此工具可讓使用者提高電量計 IC 隨溫度變化的準確度。
使用指南: PDF | HTML
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參考設計

TIDA-00884 — 1 至 2 節串聯 HDQ 鋰離子電池組管理器參考設計

德州儀器 bq78z100 元件是一款電池組管理器，整合了電量計量與保護功能，可實現 1 至 2 串聯鋰離子與鋰聚合物電池組的完整自主運作。此架構可透過 HDQ 廣播命令，實現電量計量處理器與外部電池充電控制器之間的通訊。此參考設計簡化了客戶的設計流程，因其為完整的電池組解決方案，包含鋰離子電池的電量計量與保護功能。它包括過電壓 IC，以提供額外的安全保護。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON (DRZ) 12 Ultra Librarian
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  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
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  • 組裝地點

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