SEMICONDUCTOR PHYSICAL QUANTITY SENSOR DEVICE

PROBLEM TO BE SOLVED: To provide a semiconductor physical quantity sensor device which can maintain current capability at normal operation and can suppress a current which flows between terminals at a short circuit.SOLUTION: A junction 6 of an output circuit 5 which connects between a first and a se...

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Bibliographic Details
Main Authors NISHIKAWA MUTSUO, MATSUNAMI KAZUHIRO
Format Patent
LanguageEnglish
Japanese
Published 21.12.2017
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Summary:PROBLEM TO BE SOLVED: To provide a semiconductor physical quantity sensor device which can maintain current capability at normal operation and can suppress a current which flows between terminals at a short circuit.SOLUTION: A junction 6 of an output circuit 5 which connects between a first and a second output element 1, 2 in a manner to mutually compensate is connected to an output terminal 103. A first switching element 3 is connected between the first output element 1 and the junction 6 of the output circuit 5. A second switching element 4 is connected between the second output element 2 and the junction 6 of the output circuit 5. The first switching element 3 is switched off when a voltage Vout of the output terminal 103 is a voltage Vref0 which is lower than a lower-limit clamp voltage (voltage Vref1). The second switching element 4 is switched off when the voltage Vout of the output terminal 103 is a voltage Vref3 which is higher than an upper-limit clamp voltage (voltage Vref2).SELECTED DRAWING: Figure 1 【課題】正常動作時の電流能力を維持することができるとともに、端子間での短絡時に流れる電流を抑制することができる半導体物理量センサ装置を提供すること。【解決手段】第1,2出力素子1,2を相補うように接続してなる出力回路5の接続点6は、出力端子103に接続されている。第1出力素子1と出力回路5の接続点6との間に、第1スイッチング素子3が接続されている。第2出力素子2と出力回路5の接続点6との間に、第2スイッチング素子4が接続されている。出力端子103の電圧Voutが下限のクランプ電圧(電圧Vref1)よりも低い電圧Vref0であるときに、第1スイッチング素子3がオフする。出力端子103の電圧Voutが上限のクランプ電圧(電圧Vref2)よりも高い電圧Vref3であるときに、第2スイッチング素子4がオフする。【選択図】図1
Bibliography:Application Number: JP20160120280