SLVUBX1 December 2020 TPS63810
The BOOSTXL-TECDRV requires the MSP-EXP432P401R LaunchPad for control. The MSP-EXP432P401R LaunchPad features the SimpleLink MSP432P401R microcontroller (MCU) with an integrated 16-bit precision ADC, delivering ultra-low-power performance including 80 µA/MHz in active power and 660 nA in standby power with FPU and DSP extensions.
The MSP-EXP432P401R LaunchPad provides an I2C interface for controlling the TPS63810. Additionally, the I2C interface can also be used to connect a digital I2C temperature sensor. Alternatively, analog temperature sensors can be interfaced to the integrated 16-bit ADC. The MSP-EXP432P401R LaunchPad is supported by Energia, an open-source electronics prototyping platform. The advantage of the MSP-EXP432P401R LaunchPad is that the ADC external reference pin is available on the BoosterPack pinout, enabling the use of a more precise external voltage reference instead of the integrated one.
Other LaunchPads can be used as well with the BOOSTXL-TECDRV. If so, attention should be given to the Launchpad’s pinout. If the ADC external reference pin is not available on the BoosterPack pinout, a hardware modification is needed. Otherwise, the internal reference can be used for the ADC. It should be noted that this may affect the temperature accuracy, as the external voltage references are typically more accurate and stable than the integrated voltage reference of the MCU. The control and sensing lines of the BoosterPack can be re-routed to different header pins, as explained in Section 8.3.
The MSP-EXP432P401R LaunchPad also provides a 3.3-V supply used for the voltage reference and the digital temperature sensor, if used.