Recently, I have made a circuit of the power supply from a Voxson DVD250 DVD player on http://www.eserviceinfo.com/download.php?fileid=22199.
Interestingly, the TEA1532 datasheet only shows applications using an external MOSFET connected to the Driver pin (pin 7) of the TEA1532, but the circuit of the power supply shows Pin 7 of this chip is not used; only the Drain (Pin 8) is used for driving the transformer.
I still don't know how this could be possible.
Interestingly, the TEA1532 datasheet only shows applications using an external MOSFET connected to the Driver pin (pin 7) of the TEA1532, but the circuit of the power supply shows Pin 7 of this chip is not used; only the Drain (Pin 8) is used for driving the transformer.
I still don't know how this could be possible.