BQ33100 Super Capacitor Manager

1 Features

• Fully integrated 2-, 3-, 4-, and 5-series Super Capacitor Manager
• Can be used with up to 9-series capacitors without individual integrated capacitor monitoring and balancing
• Active capacitor voltage balancing
  • Prevents super capacitor overvoltage during charging
• Capacitor health monitoring
  • Capacitance learning
  • ESR measurement
  • Operation status
  • State-of-charge
  • State-of-health
  • Charging voltage and current reports
  • Safety alerts with optional pin indication
• Integrated protection monitoring and control
  • Overvoltage
  • Short circuit
  • Excessive temperature
  • Excessive capacitor leakage
• 2-wire SMBus serial communications
• High-accuracy 16-bit delta-sigma ADC with a 16-channel multiplexer for measurement
  • Used for voltage, current, and temperature
• Low power consumption
  • < 660 µA in NORMAL operating mode
  • < 1 µA in SHUTDOWN mode
• Wide operating temperature: –40°C to +85°C

2 Applications

• RAID systems
• Server blade cards
• UPS
• Medical and test equipment
• Portable instruments