Hi all,
I want to use a load switch as a switch to turn on and off the power to support circuitry that I have. A microcontroller which will be powered ON at all times will provide the control signals. I have a couple of questions on load switches.
I was planning to use a Vishay Si1869dh load switch @ Vin = 15V, Von/off = 3.3V.
I want the Vout to be ~15V as well and the current draw from the load will be around 0.2A most of the time. max 0.8A can be expected at times where I will have a bulb switched ON which will be for short periods of time.
1. The Id (min) value of the load switch - will this be drawn from the power supply at all times regardless of how much current is required by the load?
2. Is the drain current the same as the load current?
3. How can I calculate the best values for slew rate controlling R and C to minimise the inrush current?
Thank you in advance.
I want to use a load switch as a switch to turn on and off the power to support circuitry that I have. A microcontroller which will be powered ON at all times will provide the control signals. I have a couple of questions on load switches.
I was planning to use a Vishay Si1869dh load switch @ Vin = 15V, Von/off = 3.3V.
I want the Vout to be ~15V as well and the current draw from the load will be around 0.2A most of the time. max 0.8A can be expected at times where I will have a bulb switched ON which will be for short periods of time.
1. The Id (min) value of the load switch - will this be drawn from the power supply at all times regardless of how much current is required by the load?
2. Is the drain current the same as the load current?
3. How can I calculate the best values for slew rate controlling R and C to minimise the inrush current?
Thank you in advance.