The Texas Instruments bq27510 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 bq27510 resides on the system's main board and manages an embedded battery (non-removable) or a removable battery pack.

The bq27510 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 bq27510 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
  • Can be Powered Directly From Battery Pack (no LDO required)
• Microcontroller Peripheral Provides:
  • Accurate Battery Fuel Gauging
  • Battery Low Interrupt Warning
  • Battery Insertion Indicator
  • 96 Bytes of Non-Volatile Scratch Pad FLASH
• Battery Fuel Gauging Based on Patented Impedance Track Technology
  • Models 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 for Connection to System Microcontroller Port
• Small 12-pin 2,5 mm × 4 mm SON Package
• APPLICATIONS
  • Smartphones
  • PDAs
  • Digital Still and Video Cameras
  • Handheld Terminals
  • MP3 or Multimedia Players

Impedance Track is a trademark of Texas Instruments. I2C is a trademark of Phillips Corporation.

• 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

BQ27510-G1的完整型号有：BQ27510DRZR-G1、BQ27510DRZT-G1，以下是这些产品的关键参数及官网采购报价：

BQ27510DRZR-G1，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BQ27510DRZR-G1的批量USD价格：3.298（1000+）

BQ27510DRZT-G1，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BQ27510DRZT-G1的批量USD价格：3.847（1000+）

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