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Part Number: LMC6492
My application need a battery management charger IC.Take a look the design layout,
1. A micro USB connector from smart phone to PC or power adapter will be use.2. From this USB connector VBUS will be supply power to my external system through the battery charging IC.3. This IC will manage the 5V , 2A power from adapter but, in quick charging mode, 9V, 2A power should be block by the management IC.
If you look on the diagram you would see, the current path is divided in 2 ways!In QC mode, the adapter has 9v/1.67A, after connected the Galaxy note 5 we saw 1.23A is operating.Right at the moment, we have faced a problem that is the charger ic side current will be 0.44A to 0.30A( depending on the supply current from adapter or over voltage and current protection).The battery we gonna use has 3.7V 2200mAh in actual spec capacity. (sorry for my previous information)It will take long time to charge the battery
I think we need to boost up the current level more, I am not sure what would be its value.
Can I use Howland Current Pump in this purpose? www.ti.com/.../snoa474a.pdf
If you have any idea about this solution, let me know please.
Regards,Ronald MichallickLinear Applications
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