HY4231

1-to-3 Cell Li+ Battery Gauge IC with Direct Connection

Application

• Notebooks
• Netbooks
• E-books
• Tablet PCs
• Portable Instruments

Main Features of HY4231 Series

• Used as stand–alone battery gauge for 1 to 3 Li+ Cell battery applications
  • Integrate dual 16-bit ADCs for precision voltage, current, and temperature measurements
  • Use a low cost and low value sense resistor with calibration for current measurement
  • Use integrated and external temperature sensors for temperature measurement
• Integrate accurate battery capacity estimate system
  • Integrate GaugePackTM algorithm – mixed algorithm with coulomb counting, open circuit cell voltage measurement and cell characteristics
  • Compensate rate, temperature, age and self–discharge effects automatically
  • Require no fully battery charge-to-discharge or discharge-to-charge recycling for capacity learning process
  • Backup specific battery capacity information to Nonvolatile (NV) Flash memory automatically
• Feature programmable battery capacity indications
  • Provide 3 or 4 LEDs for capacity indications
• Feature programmable protection alerts
  • Protections for voltage, current, and temperature faults
  • Provide pin alert for voltage, current, and temperature protection
• Backup battery lifetime data to Nonvolatile (NV) Flash memory automatically
• Provide 96 bytes Nonvolatile (NV) user scratch Pad Flash memory