TB2924FG

2006-01-25

15

Strong Electrical and Magnetic Fields

Devices exposed to strong magnetic fields can undergo a polarization phenomenon in their plastic material, or

within the chip, which gives rise to abnormal symptoms such as impedance changes or increased leakage current.

Failures have been reported in LSIs mounted near malfunctioning deflection yokes in TV sets. In such cases the

device’s installation location must be changed or the device must be shielded against the electrical or magnetic field.

Shielding against magnetism is especially necessary for devices used in an alternating magnetic field because of the

electromotive forces generated in this type of environment.