Other Parts Discussed in Thread: TPS61160,
Hi Team,
The customer uses DRV8846 to drive the motor and TPS61160 to drive the liquid crystal. In each production, the LCD screens of several machines are not bright or the motor rotation noise is very loud. There is no problem with the soldering of the pads around the chip visually, and it is impossible to judge and prove whether there is any problem with the PPAD soldering. The chip can be repaired by heating the chip with a hot air gun every time, and it can be seen that the chip is indeed not soldered well. Customer would like to know:
1. What is the role of PPAD and how it is connected to other parts of the chip?
2. Does the QFN packaged device require a special soldering process?
Thanks,
Annie