公开(公告)号：US20200182965A1

公开(公告)日：2020-06-11

申请号：US16411285

申请日：2019-05-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kevin Paul HERRING ,  Anant Shankar KAMATH

IPC: G01S7/285 ,  H04B1/18 ,  H03K19/177 ,  G01R19/10 ,  H02H9/02

Abstract: A digital input receiver system comprises a first input receiver having a first current limiter input, and a first voltage comparator input coupled to a first node. A first resistor is coupled between the first node and the first current limiter input. The first input receiver outputs a digital logic signal and is coupled to a second node. The receiver system further comprises a second input receiver having a second current limiter input, and a second voltage comparator input coupled to the second node. A second resistor is coupled between the second node and the second current limiter input. The second input receiver outputs a malfunction signal. The first and second input receivers are configured to limit current through the receiver system to less than an overcurrent threshold of the first and second input receivers.