I have designed a circuit with a comparator to switch on/off an p-mosfet to achive a high side switch. I now suspect the design is not very smart
Question: Is there a risk I will fry the comparator when dischargeing the mosfet gate?
The comparator is an LM239: http://www.datasheetcatalog.org/datasheet/philips/LM239N.pdf
The Mosfet is an IRFR5305: http://www.irf.com/product-info/datasheets/data/irfr5305pbf.pdf
The comparator output sinks the mosfet gate which is pulled up to 12V by a 8k resistor. However I've learned that relatively high currents may be present when turning the mosfet on/off.
In the LM239D datasheet there is a line "Output short-circuit to ground : continous" with an additional note "Maximum current is approximately 20 mA independent of the magnitude of V++". Does this mean the current is internally limited to that and I don't have to worry? Or that current must be externally limited to 20mA in order to not destroy the chip?
A circuit-diagram is attached.