PTH08T220W: Schematics review

PYTsai

Genius 11960 points

Part Number: PTH08T220W

Can you help review our schematics. We would like to control pin 12 Vo_ADJ to set the output voltage. However our circuit seems dose not work. May i have your advise?

Our schematics as below

over 6 years ago

0 Sam Wang1 over 6 years ago

Prodigy 140 points

Add more desription for DPS4_SF in circuit. DPS4_SF come from DAC channel and then would like to control Vo_ADJ Pin.

0 J Arrigo over 6 years ago

TI__Mastermind 28020 points

Hi PY,

What issue are you experiencing? It the device not starting up? It is not regulating to the correct voltage?

Have you tried removing DR35? If you remove DR35, the device should regulate to 0.7V.

Thanks, Jason

0 Sam Wang1 over 6 years ago in reply to J Arrigo

Prodigy 140 points

Hi Jason,

This is sam, PY help me raise the question here. I try to use DAC(AD5676) control Vo ADJ and howerver cannot regulate correct voltage.

Thanks for your reply, I'll remove DR35 and try again.

Sam

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PTH08T220W: Schematics review