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.
Feature
- BatteryFuel 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
