Electronic – LTC4015 variable i2c speed operation

battery-charginghal-libraryi2csmbus

I am planning to use LTC4015 IC for buck charger application . I have to interface the IC with my host MCU.

LTC4015 PRODUCT PAGE

I have other charge controlller ICs connected over same I2C bus.
other ICs are stating i2c bus speed to be 100KHz, but this LTC4015 IC's specification says 400KHz for clock speed of i2c bus.

so i wanted to confirm, is it possible to drive the LTC4015 ON 100khZ SPPED,

if yes then great.
if not , will changing the speed of i2c bus frequently causes any improper behavior in mcu.(IS IT RECOMMENDED )

We are using NXP MC9S12XEP100.

MC9S12XEP100 PRODUCT PAGE

I2C SPECS OF LTC4015

Best Answer

Your snip of the datasheet is missing a very important part - the heading.

If you look up from the 400kHz you can see it's in the MAX column.

So the speed specified is simply the maximum clock rate. You should be fine at 100kHz.

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