Part Number: BQ24640 Hi
i am use BQ24640 ic to charge supercap 58F/16V. As per design iset is set 3A & O/P volt is set 8V.
if supercap voltage below 1V then the BQ ckt is not charge the supercap at set output level.
It is stop charging at 2V. If i…
Part Number: BQ24640 Dear Team,
Our customer have a issue that output spec is 25.5V, but output is 8V now.
Could you help to check the schematic? or guide us how to resolve this issue.
Many Thanks,
Jimmy
Part Number: BQ24640 Hi
I wish to use bq24640 to charge a supercapacitor bank of 4* (2.7V 50F) by a generator with an output range of 9V to 42V.
When the supercapacitors are fully charged there is a potential danger of overvoltage. In the typical application…
Part Number: BQ24640 Hi
The customer design the schematic with BQ24640, the voltage is set 12V, abnormal output 1.7V (HIDRV=PH=1.7V, LODRV=GND=0V)
Please help check the schematic.
Thanks
Star
Part Number: BQ24640 Hi Team,
Customer is looking for a super capacitor charger solution, the super-capacitor is 12V and charging current should maintain 5.5A lasting 10s. Do u think BQ24640 is best solution for this customer's demand? If not, pls recommend…
Part Number: BQ24640 hello~
The capacitor you are trying to use is a hybrid capacitor from Vinatech.
3.8 per cell, 3 connected in series, total 11.4V.
We are considering bq24640 for charging ic.
If you use bq24640ic, ask if you don't need to use PCM or…
Part Number: BQ24640 Hi team,
Is there any max/min value for resistor-divider, R1 and R2? (R2 is connected from VFB to the output, and R1 is connected from VFB to GND.)
Typical application on the datasheet has 105kohm and 300kohm. Is it OK to use 10ohm…
Part Number: BQ24640 Hi team,
My customer is considering using BQ24640, and I’d like to ask your help.
For TS pin, which temperature is it monitoring? The datasheet states BQ24640 monitors load temperature by measuring the voltage between TS and…
