The maximum input voltage that can be applied to the LTC2050HVCS8 is 140V, but it's recommended to limit it to 120V to ensure reliable operation.
To minimize noise and ensure optimal performance, it's recommended to follow a star-ground configuration, keep the input and output traces separate, and use a solid ground plane. Additionally, place the input capacitors close to the IC and use a low-ESR capacitor for the output filter.
The recommended input capacitor value is 1uF to 10uF, and it's recommended to use a low-ESR ceramic capacitor, such as an X5R or X7R type, to minimize noise and ensure stable operation.
To protect the LTC2050HVCS8 from overvoltage and overcurrent conditions, it's recommended to add a voltage clamp or a TVS diode at the input, and a current-limiting resistor or a fuse in series with the output. Additionally, consider adding overvoltage and overcurrent protection circuits to ensure reliable operation.
The typical startup time for the LTC2050HVCS8 is around 100us to 200us, depending on the input voltage and output load. However, this time can be affected by the input capacitor value, output load, and other factors.