Protect Current-Sense Amplifiers Against Overvoltage Transients

Focus:

A diode, two Zener diodes, and a couple of resistors can protect a current sense amplifier IC against common-mode voltages above 30 V, enabling the amplifier to withstand load-dump voltages in automotive designs.

What you’ll learn:

• How to protect a current-sense amplifier against overvoltage transients

Notes:

ED's Ideas For Design

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Author & Publication:

Prashanth Holenarsipur, product definer, and Arpit Mehta, applications engineer, Maxim Integrated Products Inc., Sunnyvale, Calif., Electronic Design, Oct 25 2007

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