Designing to Protect MAX2140's Internal ESD Diode During Nonstandard Operation
The MAX2140 SDARS receiver can experience internal ESD diode failure during a hot-plug operation (connection or disconnection with power applied), which is not a standard operation for this device. While this can occur in many applications, hot-plugging is a high probability in the automotive industry. This application note reviews the cause of the ESD diode problem during hot-plug, and helps calculate and properly design the circuitry to prevent the failure.
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