| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the chip size and the current consumption of an article equipped with a cell voltage monitoring circuit of a battery pack. <P>SOLUTION: The semiconductor integrated circuit device comprises, through manufacturing in an insulation separation process, a cell voltage detecting circuit 13 for detecting a cell voltage VVi, by voltage-dividing, between a positive-side input terminal Ti and a negative-side input terminal Ti-1 for each of cells BCis (i=1, 2, 3, and 4), a reference voltage generating circuit 14 for generating a reference voltage Vr by inputting the cell voltage VVi; and a comparison circuit 15 which operates, by receiving a power supply from the positive-side input terminal Ti and the negative-side input terminal Ti-1 of the cell BCi, and compares the reference voltage Vr to a detection voltage vvi, acquired by voltage-dividing the cell voltage VVi. <P>COPYRIGHT: (C)2008,JPO&INPIT |
