Part Number: BQ24133
Hi
The customer design with BQ24133 to charge 3 series battery, and the charging current is 1.2A.
A switch is added to the PVCC output to disconnect or connect the subsequent circuit. If they don't turn on the switch, charging is…
Part Number: BQ24133 Other Parts Discussed in Thread: BQ25886 I am designing a battery charger / pack using the BQ24133. The battery consists of two (2) 3.7V Li-Poly cells in series for a total pack voltage of 8.4V. The datasheet for the BQ24133 states…
Dear Aya
I am a hardware engineer from Makoto. Regarding the abnormal charging issue of the TI charging chip BQ24133, I would like to ask a few questions:
① Bq24133 does not have FB pins, Rtop and Rbottom, 50mV x (1+Rtop/Rbottom), and it was not found…
Part Number: BQ24133 Hello Ti Engineers,
I have a number of questions regarding the BQ24133 charging circuit
1. What is the minimum resistance that can be used for Rac? The value of Rac in the datasheet examples are 20mΩ. Since our system has a typical…
Part Number: BQ24133 Hello TI Engineers,
I would like to know how the charger IC along with the ACFET and RBFET behaves if you exceed the your Set Input Current (I,DPM).
We know that the output charge current decreases as system load increases when the…
Part Number: BQ24133 Hello TI Engineers,
Is there any layout guideline and suggestion regarding the power path section of the BQ24133.
We would like to move the VSYS (power path output) from the RED area of the PCB layout to the BLUE area. (See Photo…
Part Number: BQ24133 Hello,
From this TI question: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/945449/bq24171-acfet-and-rbfet/3493046?tisearch=e2e-sitesearch&keymatch=bq24133%252520ACFET#3493046
The…
Part Number: BQ24133
Hi,
Something is wrong with my circuit.
Input voltage VIN=13V, set 3 battery output. The measured no-load output voltage is only 7.4V, and the measured voltage at pin 14 is 3.3V. Please help me review the problems in the circuit…
Part Number: BQ24133 We accidentally damaged the chip while using BQ24133. We test the damaged chip and find that it is VREF, SW, CELL, SRN pin abnormality.
In use, we plug in the battery first and then the main power supply. The lithium battery is 12…
Part Number: BQ24133 Hi
The customer design with bq24133, they set the cell to VREF, but the SW output voltage only 8.5V, and the STAT is blinking.
the schematic as below:
In 9.3.9, except that the delay of 1.5s has not been measured, it meets the r…