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Unreliable or Unstable Power

One scenario embedded design engineers should consider is potential data corruption or data loss caused by unexpected power failures to the host application. Power management for embedded applications can be a challenging design aspect. Most embedded applications are deployed in harsh environments where power may not be stable 100% of the time. The power supplied to the application can be abruptly interrupted, which leads to power interruption of the SSD as well as other components within the device. Understanding potential power loss is the first step to implementing features within an SSD to mitigate data loss or data corruption. A power interruption can manifest itself as either a complete power loss or a brown-out. A complete power loss is when the power supplied to the SSD drive falls to almost zero. A power brown-out is when the supplied power is dropped below operation tolerances for a finite amount of time.