公开(公告)号：ITUB20155858A1

公开(公告)日：2017-05-24

申请号：ITUB20155858

申请日：2015-11-24

Applicant: ST MICROELECTRONICS SRL

Inventor： BIANCHI DARIO ,  GUANZIROLI FEDERICO ,  GHISU DAVIDE UGO

IPC: H03K3/356 ,  H03K19/0185

Abstract: In an embodiment, a level shifter circuit for driving a load (HSP) via a power supply line (HVP) includes: - an input stage (CL) for receiving an input signal (IN) switchable between a first and a second input level (0, LVP), - an output stage (LL, A) coupled to the power supply line (HVP) to produce a drive signal (G) for the load (HSP), the output stage (LL, A) switchable between a first and a second output level (REF_HVP, HVP), - a level translator (LT) set between the input stage (CL) and the output stage (LL, A), whereby the input signal (IN) switching between the first and second input levels (0, LVP) translates into the output stage (LL, A) switching between the first and second output levels (REF_HVP, HVP)- A feedback element (10) is provided coupled to the output stage (LL, A) for transferring to the input stage (CL) a feedback signal (20) representative of the output level of the output stage (LL, A); the input stage (CL) includes control circuitry (12 to 18, 22) sensitive to the input signal (IN) and the feedback signal (Q_N) for detecting undesired switching of the output stage (LL, A) between the first and second output levels (REF_HVP, HVP) occurring in the absence of input signal (IN) switching between the first and second input levels (0, LVP), the control circuitry (12 to 22) being configured (22) for inverting the output level (Q_N) of the output stage (LL, A) resulting from undesired switching.

公开(公告)号：ITUA20161531A1

公开(公告)日：2017-09-10

申请号：ITUA20161531

申请日：2016-03-10

Applicant: ST MICROELECTRONICS SRL

Inventor： SAMBI MARCO ,  RIPAMONTI DARIO ,  GHISU DAVIDE UGO ,  BIANCHI DARIO

IPC: H01L29/861 ,  H01L21/76