1 Features

1• 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

3 Description

The Texas Instruments BQ33100 Super Capacitor

Manager is a fully integrated, single-chip solution that

provides a rich array of features for charge control,

monitoring, and protection for either 2-, 3-, 4-, or 5-

series super capacitors with individual capacitor

monitoring and balancing or up to 9-series capacitors

with only the stack voltage being measured. With a

small footprint of 7.8 mm × 6.4 mm in a compact 24-

pin TSSOP package, the BQ33100 maximizes

functionality and safety while dramatically increasing

ease of use and cutting the solution cost and size for

super capacitor applications.