Hi expert,
Recently one of my customer report a technical issue on BQ76LP455.
They plan to use ZXTN4004KTC to replace MJD44H11T4 due to shortage.(this is a mass production project ,just do a replacement due to shortage)
The schematic is as below, And AFE is BQ76LP455, all the network signals are connecting LP455 directly.
For MJD44H11T4, all the key waveform is good. However, for ZXTN4004KTC, waveform is bad.But ZXTN4004KTC is recommanded by our EVM.
And they supposed it is related to LP455. Since I am new for BQ AFE, so I cannot judge. Could you kindly share your opinions?
The waveforms is in attached word file.
and I also see the recommended circuit in datasheet.
my another question is how much Ib current NPN_Base can provide?
BR
Emma
