Hello everyone!
Im designing a battery charger circuit with ADP2291. You can see the datasheet in this link.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADP2291.pdf
Normally this circuit should work like this. When you choose RS=100mohm you have to get Imax=1.5A.(Changing between Vin=4.5-6V)
Here are my inputs,
-Vin=5V
-Radj=open
RS=100mohm
-My battery voltage between 3-4.2V. Not less than 3V and not equal or higher than 4.2V. (I tested is my battery working normal. So its working normal.)
My outputs like this,
-Vadj=3V (as expected)
-Vout=4.2V (as expected)
-Vrs=70mV (it should 150mV)
-Imax= 210-240mA and Ibat=200-230mA (it should 1.5A max)
I exactly set the figure.22 and figure.23 from datasheet. I also tried lots of different way. But I couldnt find the answer. Can anyone help me about ADP2291 or why its not working as expected?
Im designing a battery charger circuit with ADP2291. You can see the datasheet in this link.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADP2291.pdf
Normally this circuit should work like this. When you choose RS=100mohm you have to get Imax=1.5A.(Changing between Vin=4.5-6V)
Here are my inputs,
-Vin=5V
-Radj=open
RS=100mohm
-My battery voltage between 3-4.2V. Not less than 3V and not equal or higher than 4.2V. (I tested is my battery working normal. So its working normal.)
My outputs like this,
-Vadj=3V (as expected)
-Vout=4.2V (as expected)
-Vrs=70mV (it should 150mV)
-Imax= 210-240mA and Ibat=200-230mA (it should 1.5A max)
I exactly set the figure.22 and figure.23 from datasheet. I also tried lots of different way. But I couldnt find the answer. Can anyone help me about ADP2291 or why its not working as expected?