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BQ27Z561-R2 現行 用於 1 串聯鋰離子電池組的阻抗追蹤電池電量計解決方案 SHA-256 authentication, low-voltage (2.0 V), black box recorder, enhanced charging algorithm
BQ27Z746 現行 具有整合式保護器的電池組側、單芯 Impedance Track™ 技術電量計 Integrated protection, SHA-256 authentication, low-voltage (2.0 V) operation, black box recorder

產品詳細資料

Cell chemistry Lead Acid, Li-Ion/Li-Polymer, NiCd, NiMH Number of series cells Single Cell Communication interface SDQ Battery capacity (min) (mAh) 1000 Battery capacity (max) (mAh) 4500 Implementation Pack External capacity indication None Features Coulomb Counter Operating temperature range (°C) -20 to 70 Rating Catalog
Cell chemistry Lead Acid, Li-Ion/Li-Polymer, NiCd, NiMH Number of series cells Single Cell Communication interface SDQ Battery capacity (min) (mAh) 1000 Battery capacity (max) (mAh) 4500 Implementation Pack External capacity indication None Features Coulomb Counter Operating temperature range (°C) -20 to 70 Rating Catalog
TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller:
    • Provides Accurate State of Charge Information for Rechargeable Batteries
    • Enhances Power and Charge Management in the System
  • Supply Operation Down to 2.4 V; Ideal for Single-Cell Li-Ion or Li-Pol Applications
  • Communicates Over Single-Wire SDQ™ Serial Interface
  • Resolves Signals Down to 3.05 uVh
  • High-Accuracy Coulometric Charge and Discharge Current Integration
  • Differential Current Sense Input
  • Automatic and Continuous Offset Calibration and Compensation
  • 32 Bytes of General-Purpose RAM, 224 Bytes of FLASH, and 8 Bytes of Secure ID ROM
  • Internal Temperature Sensor With 0.25°K Resolution Eliminates the Need for an External Thermistor
  • Programmable Digital Output Port
  • Battery-Pack Removal Detection Input Places the IC in the Sleep Mode When System Is Not Present
  • High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
  • Low Power Consumption:
    • Operating: 40 uA
    • Sleep: 1.5 uA

SDQ is a trademark of Texas Instruments.

  • Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller:
    • Provides Accurate State of Charge Information for Rechargeable Batteries
    • Enhances Power and Charge Management in the System
  • Supply Operation Down to 2.4 V; Ideal for Single-Cell Li-Ion or Li-Pol Applications
  • Communicates Over Single-Wire SDQ™ Serial Interface
  • Resolves Signals Down to 3.05 uVh
  • High-Accuracy Coulometric Charge and Discharge Current Integration
  • Differential Current Sense Input
  • Automatic and Continuous Offset Calibration and Compensation
  • 32 Bytes of General-Purpose RAM, 224 Bytes of FLASH, and 8 Bytes of Secure ID ROM
  • Internal Temperature Sensor With 0.25°K Resolution Eliminates the Need for an External Thermistor
  • Programmable Digital Output Port
  • Battery-Pack Removal Detection Input Places the IC in the Sleep Mode When System Is Not Present
  • High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
  • Low Power Consumption:
    • Operating: 40 uA
    • Sleep: 1.5 uA

SDQ is a trademark of Texas Instruments.

The bq2023 is an advanced battery monitoring IC that accurately measures the charge and discharge currents in rechargeable battery packs. Intended for pack integration, the bq2023 contains all the necessary functions to form the basis for an accurate battery gas gauge in cellular phones, PDAs, or other portable products.

Gas gauging is accomplished by coulomb counting (i.e., measuring the charge input to and subsequently removed from the battery). The bq2023 achieves that by measuring the differential voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery-pack negative contact. An internal voltage-to-frequency converter (VFC) converts this voltage into charge and discharge counts. The VFC is capable of resolving signals down to 3.05 uV. By using the accumulated counts in the charge, discharge, and self-discharge registers, an intelligent host controller can determine battery state-of-charge information. To improve accuracy, the bq2023 continuously measures and compensates offset errors in the VFC.

The bq2023 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2023 data and communicates meaningful battery data to the end-user or power-management system. The SDQ single-wire bus architecture allows multiple bq2023s to exist on the same communications node simultaneously.

The bq2023 provides 224 bytes of flash memory, 8-bytes of secure ID ROM, and 32 bytes of RAM. The nonvolatile memory maintains formatted battery monitor information, identification codes, warranty information, or other critical battery parameters while the battery is temporarily shorted or deeply discharged.

The bq2023 is an advanced battery monitoring IC that accurately measures the charge and discharge currents in rechargeable battery packs. Intended for pack integration, the bq2023 contains all the necessary functions to form the basis for an accurate battery gas gauge in cellular phones, PDAs, or other portable products.

Gas gauging is accomplished by coulomb counting (i.e., measuring the charge input to and subsequently removed from the battery). The bq2023 achieves that by measuring the differential voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery-pack negative contact. An internal voltage-to-frequency converter (VFC) converts this voltage into charge and discharge counts. The VFC is capable of resolving signals down to 3.05 uV. By using the accumulated counts in the charge, discharge, and self-discharge registers, an intelligent host controller can determine battery state-of-charge information. To improve accuracy, the bq2023 continuously measures and compensates offset errors in the VFC.

The bq2023 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2023 data and communicates meaningful battery data to the end-user or power-management system. The SDQ single-wire bus architecture allows multiple bq2023s to exist on the same communications node simultaneously.

The bq2023 provides 224 bytes of flash memory, 8-bytes of secure ID ROM, and 32 bytes of RAM. The nonvolatile memory maintains formatted battery monitor information, identification codes, warranty information, or other critical battery parameters while the battery is temporarily shorted or deeply discharged.

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類型 標題 日期
* Data sheet Single-Wire Advanced Battery Monitor IC for Cellular and PDA Applications datasheet (Rev. B) 2001年 6月 1日
Application note Battery Authentication and Security Schemes (Rev. A) 2014年 7月 17日
Application note Calculating CRC With TI Battery Management Products 2005年 10月 19日
Application note Gas Gauging Basics Using TI Battery Monitor ICs (Rev. A) 2003年 10月 17日
Application note Advanced Gas Gauge Firmware Flowchart for TI Battery Monitor ICs 2002年 8月 28日
Application note Advanced Gas Gauge Host Firmware for TI Battery Monitor ICs 2001年 5月 16日

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 8 Ultra Librarian

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內含資訊:
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  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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