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电池电量监测

BQ2019

最晚可采购期限

基于闪存的精密多化合物充电或放电计数器，具有高速单总线接口 (HDQ)

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数据表
BQ2019 处于停产状态
此产品处于停产状态。新设计应考虑替代产品。
open-in-new 比较替代产品
功能与比较器件相同，但引脚排列有所不同
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BQ27Z746 正在供货 具有集成保护器、采用 Impedance Track™ 技术的电池包侧单节电池电量监测计 Integrated protection, SHA-256 authentication, low-voltage (2.0 V) operation, black box recorder

BQ2019

最晚可采购期限
数据表 立即订购

产品详情

Cell chemistry Lead Acid, Li-Ion/Li-Polymer, NiCd, NiMH Number of series cells Single Cell Communication interface HDQ 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 HDQ 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 State-of-Charge Information for Rechargeable Batteries
    • Enhances Charge Termination
  • Ideal for Single-Cell Li-Ion or 3-Cell NiMH Applications
  • High-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration
  • 32 Bytes of General-Purpose RAM
  • 96 Bytes of Flash (Including 32 Bytes of Shadow Flash)
  • 8 Bytes of ID ROM
  • Internal Temperature Sensor Eliminates the Need for an External Thermistor
  • Multifunction Digital Output Port
  • High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
  • Low Power Consumption
    • Operating: <80 µA
    • Sleep: <1.5 µA
  • Single-Wire HDQ Serial Interface
  • Packaging: 8-Lead TSSOP
  • Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller
    • Provides State-of-Charge Information for Rechargeable Batteries
    • Enhances Charge Termination
  • Ideal for Single-Cell Li-Ion or 3-Cell NiMH Applications
  • High-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration
  • 32 Bytes of General-Purpose RAM
  • 96 Bytes of Flash (Including 32 Bytes of Shadow Flash)
  • 8 Bytes of ID ROM
  • Internal Temperature Sensor Eliminates the Need for an External Thermistor
  • Multifunction Digital Output Port
  • High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
  • Low Power Consumption
    • Operating: <80 µA
    • Sleep: <1.5 µA
  • Single-Wire HDQ Serial Interface
  • Packaging: 8-Lead TSSOP

The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products.

The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system.

The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged.

The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products.

The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system.

The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged.
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* 数据表 bq2019: Advanced Battery Monitor IC 数据表 (Rev. E) 2003年 2月 18日

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点