The TI E2E™ design support forums will undergo maintenance from Sept. 28 to Oct. 2. If you need design support during this time, contact your TI representative or open a new support request with our customer support center.

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.

LMK00338: MAX current consumption of LMK00338

Part Number: LMK00338

Hi,

My customer wants calculate MAX current consumption of LMK00338 under the following condition.

  • OSCin
  • All 8ch HCSL output

On this case, there is MAX current consumption as follows:

MAX current consumption
=ICC_CORE(OSCin selected)+ICC_HCSL+ICCO_HCSL
=13.5mA+38.5mA+84mA
=136mA

Is it correct?   Please advise us.

Thanks and best regards,
M.HATTORI.

  • Hattori-san,

    Icc is calculated with the following formula:

    ICC_TOTAL = ICC_CORE + ICC_BANK_A + ICC_BANK_B + ICC_CMOS + ICCO_BANK_A + ICCO_BANK_B + ICCO_CMOS

    ICC_TOTAL =13.5 + 38.5 + 38.5 + 0 + 84 + 84 + 0

    ICC_TOTAL = 258.5 mA

    Note: the ICCO_BANK_x includes load current.

    see also section 9 Power Supply Recommendations from the datasheet.

    regards,

    Julian