Hello!
Today I was trying two devices, the BLDS controller and the buck made on TPS54824 to work together. Both devices are powered from the common high efficient LiPo 4S battery. The BLDC controller consumes up to 40 amps peak and, by definition, is very noisy, to such the extent that the drawdown of the supply voltage at the buck inlet tears its generation. Connecting an 10,000 uF elytic corrected the situation, but this is not a case for some restrictions. So, I've put this cap aside and correct EN pin divider to ignore voltage drops. Everything began to work until the moment I did drastically change the speed of the engine (I just imitate a possible real situation) - the chip caught fire with a blue. Further analysis showed broken chip input. Can anyone, who knows what's the matter or faced with such explain me this phenomenon and how to fix it?
WBR, Sergey
