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TPS61390: Configuration of the GAIN pin

Borong Hu
Prodigy 10 points
Part Number: TPS61390

Hello,

Can you please clarify the configuration of GAIN pin when it is used as input.

In page 5 of the datasheet of TPS61390, it says this pin is set high for current mirror gain 1 : 5 (MON2)

but in page 11, it says this pin is set low for 1:5

Which is correct? Is there any typo in the datasheet?

  • 0
    TI__Guru 60265 points

    Hello Borong,

    There is China National Day this week, so the responsible team is out of the office. So for a definitive answer, please wait until next week, but in the application section, you can find Figure 12, which shows 1:5 for low and 4:5 for high, so I expect this is the right answer and there is a typo on page 3 (not 5).

    Best regards,
    Brigitte

  • 0
    TI__Genius 11150 points

    Hello Borong,

    Sorry there are typos about the GAIN and current mirror gain in the datasheet description and pictures.

    In both conditions when GAIN is input pin or output pin, the description in the pin table is correct, shown below:

    • GAIN high: current mirror gain 1:5;
    • GAIN low: current mirror gain 4:5;

    Regards

    Lei