BQ27501数据手册集成电路（IC）的电池管理规格书PDF

描述 Description

The Texas Instruments bq27501 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 bq27501 resides on the system main board, and manages an embedded battery (non-removable) or a removable battery pack.The device uses the patented Impedance Track™ algoritm for fuel gauging, and provides information such as remaiing battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).

The device works with identification resistors in battery packs to gauge batteries of different fundamental chemistries and/or different rated capacities.

特性 Features

• Battery Fuel Gauge for 1-Series Li-Ion Applications
• Resides on System Main Board
• Works With Embedded or Removable Battery Packs

• Works With Battery ID Resistor in Battery Pack
• Microcontroller Peripheral Provides:
• Accurate Battery Fuel Gauging
• Internal Temperature Sensor for System Temperature Reporting
• Battery Low Interrupt Warning
• Battery Insertion Indicator
• Battery ID Detection
• 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㪘 or Less)

• I2C™ Interface for Connection to System Microcontroller Port
• 12-Pin 2,5-mm x 4-mm SON Package
• applications
• Smartphones
• PDAs
• Digital Still and Video Cameras
• Handheld Terminals
• MP3 or Multimedia Players

Impedance Track, bqEASY are trademarks of Texas Instruments. I2C is a trademark of Philips Electronics.