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I2C control and adjustable LDOs in TPS65182B
I have a couple of questions after reading the datasheet of TPS65182B. It seems there is something missing the details.
First, on Page1, it says the LDOs for source driver supply are adjustable, but the question is through where? there is no more info about it in the following paragraphs.
Secondly, in TERMINAL FUNCTIONS table on Page3, it says that VCOM can be set through I2C interface. However, the register address map does not show the dedicated address for it, but only for the temperature readout. It does say VCOM is adjustable through an external potentiometer. Later on it also say the I2C is able to control it. So, if I want to set VCOM through I2C, what command should I provide?
The TPS65182B does not have I2C communication enabled except for the temperature read register 0x00. This means that the LDOs cannot be changed from their default of +/-15V and VCOM can only be changed through an external resistor network.
The TPS65181 is the same chip but has full I2C control of the user registers. The TPS65181 or the second generation TPS65185 may be better for your application than the TPS65182B.
Thank you very much for your response and recommendations.
The TPS65181 is much suitable for my application and provides flexibilities on the control of thees power rails.
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