• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 266 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: About L4A and L4B pin

Tsukui Yusuke
Guru 21930 points
Part Number: TPS65218D0

Hi,

Could you tell me about L4A pin connection parts?
The following D22 diodes is installed in EVM.

"AM438x ePOS EVM Hardware"
http://www.tij.co.jp/jp/lit/ug/spruif8/spruif8.pdf

However, it is not introduced in the data sheet.
Please tell me why the D22 is installed.

"Data sheet"
http://www.ti.com/lit/ds/symlink/tps65218d0.pdf

Regards,
Yusuke

  • 0
    TI__Mastermind 30310 points

    Yusuke-san,

    This diode is a workaround for TPS65218B1RSL (-B1 silicon), which is NRND.

    If you use the newer device, TPS65218D0, the workaround is not required.

    The -D0 silicon was re-designed to fix multiple issues identified in -B1 silicon, including the start-up issue on DCDC4 which is the reason that D22 was added.