• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 204 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS65218D0: Connection of SYS_BU

PAN-M
Mastermind 8375 points
Part Number: TPS65218D0

Dear all.

Our customer don't use IN_BU and CC.
Both input connects with GND.
Can we connect SYS_BU to GND?

Regards,
PAN-M

  • 0
    TI__Mastermind 30280 points

    PAN-M,

    Yes, the SYS_BU pin can be connected to GND in addition to IN_BU and CC. Pins for DCDC5 (L5 and FB5) and DCDC6 (L6 and FB6) can also be connected to GND. PGOOD_BU and IN_nCC should be left floating.

    The use for implementing the TPS65218D0 in a system that does not use the backup battery supplies is clearly documented on page 93 of the datasheet in Section 6.1.2 Applications Without Battery Backup Supplies.