公开(公告)号：US20240201717A1

公开(公告)日：2024-06-20

申请号：US18509105

申请日：2023-11-14

Applicant: STMicroelectronics International N.V.

Inventor： Carmela MARCHESE ,  Salvatore POLI

IPC: G05F1/46 ,  G01D11/00

CPC classification number: G05F1/46 ,  G01D11/00

Abstract: A microelectromechanical sensor device has a detection structure and an associated electronic circuitry; the electronic circuitry receives, when the microelectromechanical sensor device is powered, an external power supply voltage and is provided with a voltage regulator which generates a regulated voltage having a different value from the external power supply voltage and at least one voltage domain powered by the regulated voltage. The electronic circuitry has a power supply management core, always powered by the external power supply voltage and controlling the voltage regulator to interrupt power supply to the voltage domain and implement a first power-down condition of the microelectromechanical sensor device.

公开(公告)号：US20240200980A1

公开(公告)日：2024-06-20

申请号：US18512936

申请日：2023-11-17

Applicant: STMicroelectronics International N.V.

Inventor： Salvatore POLI ,  Carmela MARCHESE

IPC: G01D3/036 ,  B81B7/00 ,  G05F1/46

CPC classification number: G01D3/036 ,  B81B7/008 ,  G05F1/46 ,  B81B2207/03

Abstract: A microelectromechanical sensor device has a detection structure and an associated electronic circuitry, configured to receive, when the device is powered, an external power supply voltage and provided with a voltage regulator generating a regulated voltage and with at least one voltage domain powered by the regulated voltage. The electronic circuitry has a power supply management core, always powered by the external power supply voltage and which controls the voltage regulator to selectively interrupt the power supply of the voltage domain to implement: a first power-down condition wherein the voltage regulator is disabled; and a second power-down condition wherein the voltage regulator is enabled to power the aforementioned voltage domain through the regulated voltage, the first and the second power-down conditions being associated with absence of data acquisition and/or processing by the sensor device. The power supply management core automatically enables the first or second power-down condition upon a first power-on of the sensor device, as a function of a configuration signal, programmable, for example, during a factory calibration step.