Part Number: BQ24640 Dear Team,
I am using BQ24640 IC to charge 35F,2.7V x 4 super capacitor in series. Balancing resistor across each super capacitor is 270ohm. Charging current is set to 3A.
Problem; Super capacitor is not charging above 1.5VDC…
Part Number: BQ24640 Tool/software: Hi,
1. Input Voltage = 24V , Output Voltage = 12V , Icharge = 3A , We have used supercapacitors 5x25F/2.7V each connected in series
Observation:We are getting ouput voltage 5.82V and feedback voltage is 1V,Based…
Part Number: BQ24640 Tool/software: Hi TIer
My customer need a super cap charger which application's charging time within 10 seconds, input voltage range 14-19.75V, charging current above 1.5A, maximum charging voltage 10V.
Could I choose BQ24640…
Part Number: BQ24640 Tool/software: Hello TI Support team,
We are currently developing a system that is limited to ~82W Power Supply. It is required to boost Power Supply 1 (12.3VDC 6.7A: This is the max available we have to design around) to 19VDC…
Part Number: BQ24640 Other Parts Discussed in Thread: BQ24610 Tool/software: Hello team,
Currently my customer is reviewing BQ24640 for their AC
1. Is below image's temp range ( 0~45‘C) set by the R9, R10 resistors on TS pin?
2. Why does the application…
Part Number: BQ24640 Tool/software: Hi, I'm working with BQ24640 to try to have it charge two supercapacitor rated at 4V. However, I've run into problems that when the two supercapacitors are fully charged and remain connected to the charging circuit…
Part Number: BQ24640 Tool/software: Hi
I'm trying to use the bq24640 to charge a 24V supercapacitor bank with constant current of 10A
I'd like to know what is the charge current that bq24640 could supply, when the supercapacitor is completed discharged…
Part Number: BQ24640 Tool/software: Hi,
1. Input Voltage = 24V , Output Voltage = 12V , I charge = 3A , We have used supercapacitors 5x25F/2.7V each connected in series
Observation: We are getting output voltage 5.82V at super cap/sense resistor and…
Part Number: BQ24640 Tool/software: Hello, My customer is looking for a buck converter for super-cap load for the following requirements. They are thinking around BQ24640 now but they would like to hear TI expert opinion. What BQ devise does TI think…
Part Number: BQ24640 Tool/software: Hello,
I am trying to use the BQ24640RVAR to charge a super capacitor rated for 9000F at 4V and 7A. The input is 12V. The super capacitor is currently at 1.8V, but the output current to the capacitor is extremely…
