Hello Bill,
Yes, the battery is rated for 6400mAh. We've had issues with charging so at this point, even if it takes the battery a while, would like to demo the battery at least charging. I have one of the BQ2057W devices on hand at the moment, so I…
Part Number: BQ2057W Other Parts Discussed in Thread: BQ24004 , BQ24005
Using the above circuit, I made my own battery charger using the BQ2057W to fulfill part of a school project. The battery we are using is charging, however at a vastly different…
Part Number: BQ24002 Other Parts Discussed in Thread: BQ24004 , , BQ24040 In one of our product, we are using BQ24004 and Lithium Ion battery single cell (3.7V). Is it possible to use a Lithium polymer battery single cell ( 3.7V)? If it can be used, what…
Hello
Recommend switching from the BQ2057 (Single Cell) to BQ2057W (Dual Cell) the external FB voltage divider will draw current in standby.
A newer device to look at for dual cell is the BQ24004.
Possible areas to look at that are causing problem…
Hi Kengo
The BQ2057 is a linear regulator, will behave similar to an LDO regulator with high power dissipation in the pass transistor (Q2). In your design charge current is set to 1A and even with only a 1V drop across Q2 the power dissipation will…
Part Number: BQ24006 Other Parts Discussed in Thread: BQ24004 , , BQ24005 Dear all,
one of my customer has notice the following discrepancy in the DS which generates confusion:
1) In the datasheet SLUS476F, (bq24004/24005/24006) page 2 states the…
Other Parts Discussed in Thread: BQ40Z50 , BQ24004 , BQ76PL536A Is the purpose of the BQ40Z50 to be included within the battery pack, and not part of my product? After playing around with the BQ40Z50EVM I am starting to think this is the case...?
I…
Other Parts Discussed in Thread: BQ24005 , BQ24004 I want to use the BQ24005 to design a charge circuit for a 2 Cell Li-ion battery: 8.4V 1200mAh.
I read in the BQ24004/5/6 user guide (SLUU110A) on page 1-2 under table 1-1 the following:
"Vi for a…
