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バッテリ管理 IC
バッテリ残量計

BQ20Z40

新規設計での使用を推奨しません

SBS 準拠、バッテリー残量計、Impedance Track テクノロジー対応、BQ29330 併用

ご注文はこちら
データシート
エラッタ
BQ20Z40 は新規設計での使用を推奨しません
これまでにご購入されたお客様をサポートする目的でこの製品を引き続き生産しています。新規設計では代替品をご検討ください。
open-in-new 代替品と比較
比較対象デバイスと同等の機能で、ピン配置が異なる製品
BQ40Z50-R2 アクティブ Turbo Mode 2.0 サポート、1 ～ 4 個の直列リチウムイオン・バッテリ・パック・マネージャ This product is a multi-cell gauge with newer hardware.

BQ20Z40

新規設計での使用を推奨しません
データシート ご注文はこちら

製品詳細

Cell chemistry Li-Ion/Li-Polymer Number of series cells 2-4 Cells Communication interface SMBus Battery capacity (min) (mAh) 800 Battery capacity (max) (mAh) 15000 Implementation System Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells 2-4 Cells Communication interface SMBus Battery capacity (min) (mAh) 800 Battery capacity (max) (mAh) 15000 Implementation System Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • Next Generation Patented Impedance Track Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
    • Better Than 1% Error Over the Lifetime of the Battery
  • Supports the Smart Battery Specification SBS V1.1
  • Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
  • Powerful 8-Bit RISC CPU With Ultralow Power Modes
  • Full Array of Programmable Protection Features
    • Voltage, Current, and Temperature
  • Satisfies JEITA Guidelines
  • Added Flexibility to Handle More Complex Charging Profiles
  • Lifetime Data Logging
  • Supports SHA-1 Authentication
  • Available in a 20-Pin TSSOP (PW) package
  • APPLICATIONS
    • Notebook PCs
    • Medical and Test Equipment
    • Portable Instrumentation

Impedance Track is a trademark of Texas Instruments.
  • Next Generation Patented Impedance Track Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
    • Better Than 1% Error Over the Lifetime of the Battery
  • Supports the Smart Battery Specification SBS V1.1
  • Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
  • Powerful 8-Bit RISC CPU With Ultralow Power Modes
  • Full Array of Programmable Protection Features
    • Voltage, Current, and Temperature
  • Satisfies JEITA Guidelines
  • Added Flexibility to Handle More Complex Charging Profiles
  • Lifetime Data Logging
  • Supports SHA-1 Authentication
  • Available in a 20-Pin TSSOP (PW) package
  • APPLICATIONS
    • Notebook PCs
    • Medical and Test Equipment
    • Portable Instrumentation

Impedance Track is a trademark of Texas Instruments.

The bq20z40 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z40 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximizes functionality and safety while minimizing external component count and cost in smart battery circuits.

The Impedance Track™ technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables the remaining capacity to be calculated with discharge rate, temperature, and cell aging that are all accounted for during each stage of every cycle.

The bq20z40 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z40 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximizes functionality and safety while minimizing external component count and cost in smart battery circuits.

The Impedance Track™ technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables the remaining capacity to be calculated with discharge rate, temperature, and cell aging that are all accounted for during each stage of every cycle.
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技術資料

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種類 タイトル 最新の英語版をダウンロード 日付
* エラッタ bq20z40 and bq20z45 Technical Reference Manual (Rev. A) 2012年 3月 7日
* データシート SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY データシート (Rev. A) 2009年 3月 12日

購入と品質

記載されている情報：
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報：
  • ファブの拠点
  • 組み立てを実施した拠点