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LMK00338: MAX current consumption of LMK00338

Motoyasu Hattori
Expert 8675 points
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.

  • 0
    TI__Mastermind 20900 points

    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