Battery Fuel Gauge Li-Ion 16mA 2.5V 12-Pin SON T/R

The Texas Instruments bq27510-G3 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-G3 resides on the system’s main board and manages an embedded battery (non-removable) or a removable battery pack.The bq27510-G3 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), temperature (°C) and state of health (%).Battery fuel gauging with the bq27510-G3 requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit.

Single series cell Li-Ion battery fuel gauge resides on system board

• Integrated 2.5 VDC LDO
• External low-value 10 mO sense resistor

Patented Impedance Track technology

• Adjusts for battery aging, self-discharge, temperature,
  and rate changes
• Reports Remaining Capacity, State of Charge (SOC), and
  Time-to-EmptyOptional Smoothing Filter
• Battery State of Health (aging) estimation
• Supports embedded or removable packs with up to 32Ahr
  capacityAccommodates pack
  swapping with 2 separate battery profiles

Microcontroller peripheral supports:

• 400-kHz I²C serial interface
• 32 Bytes of Scratch-Pad FLASH NVM
• Battery Low digital output warning
• Configurable SOC Interrupts
• External thermistor, internal sensor, or host reported
  temperature options

Small 12-pin 2,5 mm × 4 mm SON Package