Other Parts Discussed in Thread: TPS2021, BQ24195, BQ25890
Dear all;
We are working with the BQ24195L to charge Android phones ( in Boost mode). The required constant current for the charging process is 1.5 to 2 A .
The only problem we have is that our battery don't allows us to work under the above conditions.
Is there a way to place a current limiter having the same functionality as the TPS2021 maintaining a constant current output without controlling the gate Voltage of a FET transistor. We are aiming to minimize our power losses, using the BQ24195Lthe extra current needed are dissipating as heat in the FET transistor.
We were also thinking of using a Buck Regulator with current feedback, but unfortunately the switching process of the buck topology will lead with a voltage drop at its output.
Any other suggestion you can provide us ?
Waiting for your reply as soon as possible,
Joseph,
