Part Number: BQ2057C Tool/software: Hi,
I am using BQ2057WSN for my project. Please find the schmatic below.
When I am connecting battery, Q2 is heating up and reaches up to 60 deg.
Thanks,
Sankar.K
Part Number: BQ2057W Other Parts Discussed in Thread: BQ2057 , , BQ2057C
Hi
We have designed a charger board with BQ2057WSNTR as in the attached image.
The charging IC works fine for 2-3 cycles then fails and the BQ2057 gets heated and blows off…
Part Number: BQ2057W Hi
The customer design with BQ2057W. It can charge normal at 1.2A, but after the battery is hot-plug, the chip cannot be charged automatically.
It is need to power on each time to start charging. Turn off the power again, plug…
Part Number: BQ2057W Question about circuit operation using BQ2057W
I am using the following circuit, and 9.0V is applied to J1 with a regulated power supply. A battery (7.4V/1000mAh) is connected to J3. The voltage of each PIN of the BQ2057W during…
Part Number: BQ2057W Other Parts Discussed in Thread: BQ2057 Q:
Is the output signal at pin 7 name: CC (Charge control output)-
a PWM signal ? to regulate the magnitude of the battery charge current -
if so: what is the timing of this signal?
…
Part Number: BQ2057W Question about D1 position of BQ2057W. The figure on the left is the standard circuit of the data sheet. Is it okay to set D1 at the position shown on the right? The figure on the left shows the actual circuit used in the 2-series…
Hello
Compare the battery manufactures charging recommendation with the charger design.
Key things to look at are the charging temp range, typically 0C to 60C but check the battery you are using.
Charging current see battery manufactures recommendations…
Part Number: BQ2057W Hello,
I was looking for a solution for battery charging solution to be integrated with our design.
I found that bq2057W could be a very good solution.
I hold two questions :
Is there any typical application where I can…
Part Number: BQ2057W Hi,
We have designed a charging module using BQ2057WSN IC to charge a 8.4V, 2400mAH 2S 18650 Li-ion battery. My supply power is 9V 5W SMPS. I have set my charging current to mA. The battery is charging continuosly and does not cutoff…
Part Number: BQ2057W Hello,
I´m going to use the bq2057W to charge a two-cell lithium-ion battery. This are the battery:
I have an input voltage of 9V with a current of 1A. I have calculated the values for the transistor, but the theta that I obtain…
