h1_key

• 300-kHz NMOS-NMOS Synchronous Buck
  Converter
• Stand-Alone Charger Designed Specifically for
  Lithium Phosphate
• 5-V to 28-V VCC Operating Range, Supports 1 to
  7 Battery Cells
• High-Accuracy Voltage and Current Regulation
  • ±0.5% Charge Voltage Accuracy
  • ±3% Charge Current Accuracy
• Integration
  • Internal Loop Compensation
  • Internal Soft Start
• Safety
  • Input Overvoltage Protection
  • Battery Thermistor Sense Suspend Charge at
    Hot/Cold Charge Suspend and Automatically
    I_CHARGE/8 at WARM/COOL
  • Battery Detection
  • Built-In Safety Timer
  • Charge Overcurrent Protection
  • Battery Short Protection
  • Battery Overvoltage Protection
  • Thermal Shutdown
• Status Outputs
  • Adapter Present
  • Charger Operation Status
• Charge Enable Pin
• 6-V Gate Drive for Synchronous Buck Converter
• 30-ns Driver Dead Time and 99.95% Maximum
  Effective Duty Cycle
• 16-Pin 3.5-mm × 3.5-mm QFN Package
• Energy Star Low I_q
  • < 15-µA Off-State Battery Discharge Current
  • < 1.5-mA Off-State Input Quiescent Current
• APPLICATIONS
  • Power Tools and Portable Equipment
  • Personal Digital Assistants
  • Handheld Terminals
  • Industrial and Medical Equipment
  • Netbooks, Mobile Internet Devices, and
    Ultramobile PCs

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