BQ33100_15 Datasheet, PDF (13/67 Pages) Texas Instruments – Super Capacitor Manager

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bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
Overview (continued)
8.1.1.4 Temperature
The bq33100 has an internal temperature sensor and input for an external temperature sensor input, TS. The
external input is used in conjunction with an NTC thermistor (default is Semitec 103AT) to sense the Super
Capacitor temperature. The bq33100 can be configured to use internal or external temperature sensors.
8.1.1.5 Series Capacitor Configuration
The bq33100 can be used to monitor 2, 3, 4 or 5 capacitors in series. The appropriate connectivity for the
different options are detailed in Table 1.
Table 1. Series Capacitor Connectivity
bq33100 PIN 5-SERIES
4-SERIES
3-SERIES
2-SERIES
VC1
P of Top (5th) Cap
P of 4th Cap
Short to VC2
Short to VC2
VC2
P of 4th Cap, N of 5th Cap
P of 3rd Cap, N of 4th
Cap
P of 3rd Cap
Short to VC3
VC3
P of 3rd Cap, N of 4th Cap
P of 2nd Cap, N of 3rd
Cap
P of 2nd Cap, N of 3rd Cap
P of 2nd Cap
VC4
P of 2nd Cap, N of 3rd Cap
P of Bottom (1st) Cap, N
of 2nd Cap
P of Bottom (1st) Cap, N of 2nd
Cap
P of Bottom (1st) Cap, N of 2nd
Cap
VC5
P of Bottom (1st) Cap, N of
2nd Cap
N of Bottom Cap (1st)
N of Bottom Cap (1st)
N of Bottom Cap (1st)
VSS
N of Bottom Cap (1st)
Short to VC5
Short to VC5
Short to VC5
SPACE
NOTE
The CC0...CC2 bits in Operation Cfg must be programmed to match the corresponding
configuration.
When in Stack mode (Operation Cfg [STACK] =1) VC1 must be connected to VC2 and VC3 connected to VC4.
Additionally a divide-by-2 resistor divider must connect between the top and bottom of the capacitor array with
VC1,2 being the top and VC3,4 being the middle and VSS being the bottom. In this configuration pins VC5 and
VC5BAL are not used and must be connected to VSS.
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