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iMX28 Battery charger

Question asked by victorien on Mar 27, 2014
Latest reply on Jul 7, 2014 by Yixing Kong

Hi,

 

I'm working on iMX28 the battery charger module and I miss some informations :

- What is the minimum supply voltage for the 5V ?

- What is the linear dropout of the linear regulator inside the charger ?

- When I set the charge current at 200mA, I measure 210mA. Is it normal ?

- What is the precision of the current regulator ?

 

I made a test with a full charge of a battery and the result is strange (cf picture MesureCharge20140327.png).

When the battery voltage is greater than 3.9V, the charge current decrease and it's not normal.

 

Is there someone who already works on the imx28 charger ?

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