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LM2755: Shutdown supply current

Jon Key
Intellectual 920 points
Part Number: LM2755

Hi Team,

On the LM2755 datasheet we mention that the shutdown supply current of 5uA typ can be achieved when EN1 = EN2 = EN3 = 0. Does HWEN accomplish this as well as Bits 0,1,2 in the General purpose register (0x10)?

Thank you,

Jon

  • 0
    TI__Genius 9255 points

    Hi Jon,

    please reference to the Figure 10 in the datasheet. Shutdown current is test when EN1=EN2=EN3=0 and HWEN=VIN. When the HWEN is driven low, all internal control registers reset to default states include BIT0,1,2 in the general purpose register to be '0'. Only pull down the HWEN and pull it up to Vin can we enter the shutdown states.

    Best Regard 

    Monet Xu