The TDA8351AQ and TDA8351Q are different. The pin counts are different. The TDA8351Q is 9 pins, while the TDA8351AQ is 13 pins. It is not interchangeable. Usb Type -C Adapter,Type -C Adapter,Adapter Charge,Usb Adapter CHANGZHOU LESEN ELECTRONICS TECHNOLOGY CO.,LTD , https://www.china-lesencable.com
TDA8351AQ pin function:
1 foot - positive phase input
2 feet - inverting input.
3 feet - output A
4 feet - 16V power supply
5 feet - feedback
6 feet - empty
7 feet - ground
8 feet - 45V power supply
9 feet - output B
10 feet - frame reversal pulse output
11, 112, 13 feet - empty