●The Texas Instruments bq27505 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requeires little system microcontroller firmware development. The bq27505 resides on the system"s main board and manages an embedded battery (non-removable) or a removable battery pack.
●The bq27505 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 bq27505 requires only PACK+ (P+), PACK\x96 (P\x96), and Thermistor (T) connections to a removable battery pack or embedded battery circuit. The CSP option is a 12-ball package in the dimensions of 2,43 mm × 1,96 mm with 0,5 mm lead pitch. It is ideal for space constrained applications.
● Battery Fuel Gause for 1-Seires Li-Ion Applications
● Resides on System Main Board
● Works With Embedded or Removable Battery Packs
● Uses _PACK+, PACK\x96_, and _T_ Battery Terminals
● Microcontroller Peripheral Provides:
● Accurate Battery Fuel Gauging
● Internal Temperature Sensor for Battery Temperature Reporting
● Battery Low Interrupt Warning
● Battery Insertion Indicator
● Configurable Level of State of Charge (SOC) Interrupts
● State of Health 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)
● 400KHz I2C™ Interface for Connection to System Microcontroller Port
● In a 12-Pin NanoFree™ (CSP) Packaging
● APPLICATIONS
● Smartphones
● PDAs
● Digital Still and Video Cameras
● Handheld Terminals
● MP3 or Multimedia Players
●Impedance Track, NanoFree are trademarks of Texas Instruments.
●400KHz I2C is a trademark of Philips Electronics.
