Tool/software:
Hi TI expert,
I designed 2S charger circuit, input voltage is 12V, system (+SYS_IN after FB23 in image below). is then feed to buck converter to supply load 5V/2A.
The issue is when I plug 12V input to charger to start up, if output have no load or I delay about 1s to ON buck circuit, charger ON normally.
If output have load, buck circuit start immediately, charger cannot enable (Q1/Q2 off).
Please advise how to resolve.
Thank you.
