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bq 33100 5 Caps Balancing doesn´t work

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I use the bq33100 EVM to charge and balance some capacitors (5 Caps with each 25F ;2,7V).

My Power Supply (System Voltage): 15V

Chg Voltage / Current: 12400mV / 100mA

The voltages of the supercaps have a difference about 600mV. Can the bq33100 balance the 5 Caps in that case or is the difference to big? Because when I connect the system voltage to the board the caps charge but they don´t balance. The CFET flag is always red. Is that wrong? Voltage measurement of my board is correct.

What could I do to get the caps balancing? CB Threshold: 1500mV; CB Min:20mV; CB Restart:25mV

How many time is such a balancing proceed from delta 500mV to 20mV?

Could someone help? I am new in this section so an answer would be very helpful. Thanks.

 


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