SMH4814 Overview
Key Features
- 48V feeds. The redundant power supplies allow for high availability and reliability. The traditional method of supplying power from these feeds is via ORing power diodes, which consume a significant amount of power. The SMH4814 allows low-RDSON FETs to be used in place of ORing diodes to reduce power consumption. The SMH4814 determines when at least one of the
- 48V feeds is within an acceptable voltage range and switches on the appropriate FET path while providing slew rate control. The SMH4814 continuously monitors the incoming feeds and switches to the most negative feed as necessary. The SMH4814 is programmed and controlled using the I2C bus as required in ATCATM applications
