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BQ2019

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具有高速 1 線 I/F (HDQ) 的基於快閃記憶體精密多化合物充電/放電計數器

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BQ2019 將逐漸停產
此產品將逐漸停產。新設計應考量替代產品。
open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
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

BQ2019

最後一次購買
產品規格表 立即訂購

產品詳細資料

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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* Data sheet bq2019: Advanced Battery Monitor IC datasheet (Rev. E) 2003年 2月 18日

訂購與品質

內含資訊：
  • RoHS
  • 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
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點