The Texas Instruments bq27500 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development. The bq27500 resides on the system main board and manages an embedded battery (non-removable) or a removable battery pack.

The bq27500 uses the patented Impedance Track algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).

Battery fuel gauging with the bq27500 requires only PACK+ (P+), PACK– (P–), and Thermistor (T) connections to a removable battery pack or embedded battery.

• Battery Fuel Gauge for 1-Series Li-Ion Applications
• Resides on System Main Board
  • Works With Embedded or Removable Battery Packs
• Uses PACK+, PACK,, and T Battery Terminals
• Microcontroller Peripheral Provides:
  • Accurate Battery Fuel Gauging
  • Internal Temperature Sensor for System Temperature Reporting
  • Battery Low Interrupt Warning
  • Battery Insertion Indicator
  • 96 Bytes of Non-Volatile Scratch-Pad FLASH
• Battery Fuel Gauge Based on Patented Impedance Track Technology
  • Models the Battery Discharge Curve for Accurate Time-to-Empty Predictions
  • Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies
  • Low-Value Sense Resistor (10 m or Less)
• I2C Interface for Connection to System Microcontroller Port
• 12-Pin 2,5-mm × 4-mm SON Package
• APPLICATIONS
  • Smart Phones
  • PDAs
  • Digital Still and Video Cameras
  • Handheld Terminals
  • MP3 or Multimedia Players

• Cell chemistry
• Li-Ion/Li-Polymer
• Number of series cells
• Single Cell
• Communication interface
• I2C
• Battery capacity (Min) (mAh)
• 300
• Battery capacity (Max) (mAh)
• 8000
• Implementation
• System
• External capacity indication
• None
• Features
• Impedance Track algorithm
• Operating temperature range (C)
• -40 to 85
• Cell balancing

BQ27500-V130的完整型号有：BQ27500DRZR-V130、BQ27500DRZT-V130、BQ27500YZGR-V130、BQ27500YZGT-V130，以下是这些产品的关键参数及官网采购报价：

BQ27500DRZR-V130，工作温度：-40 to 85，封装：SON (DRZ)-12，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ27500DRZR-V130的批量USD价格：3.214（1000+）

BQ27500DRZT-V130，工作温度：-40 to 85，封装：SON (DRZ)-12，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ27500DRZT-V130的批量USD价格：3.749（1000+）

BQ27500YZGR-V130，工作温度：-40 to 85，封装：DSBGA (YZG)-12，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网BQ27500YZGR-V130的批量USD价格：3.214（1000+）

BQ27500YZGT-V130，工作温度：-40 to 85，封装：DSBGA (YZG)-12，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网BQ27500YZGT-V130的批量USD价格：3.749（1000+）

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bqEvaluation/bqEVSW/bqEASY 工具可使用化学物质更新器安装程序中的数据，为您的电池组选择正确或最接近的化学鉴定文件。

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