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TLV320AIC3104: About shut down sequence

Tao_2199
Genius 5870 points

Part Number: TLV320AIC3104

Hello,

Regarding to shut down sequence on TLV320AIC3104,my customer is asking a question.

 

(Question)

According to datasheet page 87, the power up sequence is described.

Dose same sequence is needed for shut down ?

 

(DVDD→ AVDD, DRVDD→ IOVDD)

At that time, if we need to keep AVDD, DRVDD > DVDD, how long should we keep delay time at starting shut down?

 


 

Regards,

Tao_2199

  • 0
    TI__Mastermind 22950 points

    Hello Tao_2199,

    The reverse should be followed for power down. DVDD should be powered down first, then AVDD/DRVDD and finally, IOVDD. The best case for power up and power down is to have a 0ms delay between devices. This is described in the following E2E FAQ. 

    I hope this information helps. 


    Regards,

    Aaron Estrada