My customer would like to know if the LED driver TPS75105DSK will work with 1.8V control for the two enables Right now I they are driving it with 3.3V I/Os but are running short on 1.8V GPIOs and I need to remap those GPIOs from a 3.3V to a 1.8V bank….
The spec for the part has the VIH as 1.2 volts but that is assuming Vin = 3.8V. In my case Vin = AVDD = 5V.. So I am not sure if the VIH will scale up with a higher VIN or if it is fixed at 1.2V. In some parts the VIH levels
Are a percentage of the Vin voltage but your spec does not say anything about it. Can TI please comment on feasibility of this implementation.
David Blankfield TI