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LP87562-Q1: Control of Enable pins during configuration

Jk
Prodigy 100 points
Part Number: LP87562-Q1

The configuration guide(SNVU590) states,

It is recommended that the ENx pins be driven low to until the device is configured to the desired settings.

Can the driving of the Enable pins during configuration be accomplished with register writes via the I2C bus?

I'm using 3 LP8756x-Q1 devices and the mcu used for programming is on another board. I prefer to not have to hard wire these pins and  route 12 enable signals(4 per PMIC) to the daughter card.

  • 0
    TI__Intellectual 950 points

    Hi Jeff,

    No, ENx pins can't be controlled via I2C, by doing that you'll need external microcontroller to handle enabling and disabling.

    Regulators can be turned on and off via I2C, but for the setup configuration, EN pin need to be low to avoid unwanted behavior.

    Tuomo