PGA460: Supply Input(Vvpwr_dd) for Direct-driven Topology

Sadanori Kato

Part Number: PGA460

Hi,

The supply input for the direct-driven topology is mentioned on page 4 of PGA460 data sheet.
Then, what are the concerns if Vvpwr_dd is less than 6V ?

Best regards,
Kato

over 7 years ago

0 Sadanori Kato over 7 years ago

Guru 36540 points

Hi,

I found that PGA460 can detect the undervoltage if Vvpwr_dd is less than 6V.

Best regards,
Kato

0 Kristin Jones93 over 7 years ago in reply to Sadanori Kato

TI__Genius 17440 points

Hi Kato,

You are correct that the PGA460 can detect undervoltage events if Vuv_vpwr is less than 6V. Note that if this occurs, the SRAM may still clear, and returning to a normal operating voltage from an undervoltage state may essentially reboot the PGA460.

Regards,

0 Sadanori Kato over 7 years ago in reply to Kristin Jones93

Guru 36540 points

Hi Kristin-san,

Thank you for your prompt reply.

I understood.

Best regards,
Kato

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PGA460: Supply Input(Vvpwr_dd) for Direct-driven Topology